Essec\Faculty\Model\Profile {#2205
#_id: "B00791760"
#_source: array:39 [
"bid" => "B00791760"
"academId" => "30405"
"slug" => "mueller-bloch-christoph"
"fullName" => "Christoph MUELLER-BLOCH"
"lastName" => "MUELLER-BLOCH"
"firstName" => "Christoph"
"title" => array:2 [
"fr" => "Professeur assistant"
"en" => "Assistant Professor"
]
"email" => "muellerbloch@essec.edu"
"status" => "ACTIF"
"campus" => "Campus de Cergy"
"departments" => []
"phone" => "0134433060"
"sites" => []
"facNumber" => "30405"
"externalCvUrl" => "https://faculty.essec.edu/cv/mueller-bloch-christoph/pdf"
"googleScholarUrl" => "https://scholar.google.com/citations?user=2mUUYxIAAAAJ&hl=de"
"facOrcId" => "https://orcid.org/0000-0002-3738-2167"
"career" => array:3 [
0 => Essec\Faculty\Model\CareerItem {#2210
#_index: null
#_id: null
#_source: array:7 [
"startDate" => "2021-09-01"
"endDate" => null
"isInternalPosition" => true
"type" => array:2 [
"fr" => "Positions académiques principales"
"en" => "Full-time academic appointments"
]
"label" => array:2 [
"fr" => "Professeur assistant"
"en" => "Assistant Professor"
]
"institution" => array:2 [
"fr" => "ESSEC Business School"
"en" => "ESSEC Business School"
]
"country" => array:2 [
"fr" => "France"
"en" => "France"
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2205}
}
1 => Essec\Faculty\Model\CareerItem {#2204
#_index: null
#_id: null
#_source: array:7 [
"startDate" => "2019-01-26"
"endDate" => "2019-05-31"
"isInternalPosition" => true
"type" => array:2 [
"en" => "Other Academic Appointments"
"fr" => "Autres positions académiques"
]
"label" => array:2 [
"fr" => "Chercheur Invité"
"en" => "Visiting Scholar"
]
"institution" => array:2 [
"fr" => "New York University"
"en" => "New York University"
]
"country" => array:2 [
"fr" => "États-Unis"
"en" => "United States of America"
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2205}
}
2 => Essec\Faculty\Model\CareerItem {#2208
#_index: null
#_id: null
#_source: array:7 [
"startDate" => "2020-08-07"
"endDate" => "2021-08-07"
"isInternalPosition" => true
"type" => array:2 [
"en" => "Other Academic Appointments"
"fr" => "Autres positions académiques"
]
"label" => array:2 [
"fr" => "Chercheur postdoctoral"
"en" => "Postdoctoral Researcher"
]
"institution" => array:2 [
"fr" => "IT University of Copenhagen"
"en" => "IT University of Copenhagen"
]
"country" => array:2 [
"fr" => "Danemark"
"en" => "Denmark"
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2205}
}
]
"diplomes" => array:3 [
0 => Essec\Faculty\Model\Diplome {#2207
#_index: null
#_id: null
#_source: array:6 [
"diplome" => "DIPLOMA"
"type" => array:2 [
"fr" => "Diplômes"
"en" => "Diplomas"
]
"year" => "2020"
"label" => array:2 [
"en" => "Doctor of Philosophy, Other, Information Systems and Decision Sciences"
"fr" => "Doctor of Philosophy, Autre, Systèmes d'informations et Sciences de la décision"
]
"institution" => array:2 [
"fr" => "IT University of Copenhagen"
"en" => "IT University of Copenhagen"
]
"country" => array:2 [
"fr" => "Danemark"
"en" => "Denmark"
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2205}
}
1 => Essec\Faculty\Model\Diplome {#2209
#_index: null
#_id: null
#_source: array:6 [
"diplome" => "DIPLOMA"
"type" => array:2 [
"fr" => "Diplômes"
"en" => "Diplomas"
]
"year" => "2017"
"label" => array:2 [
"en" => "Master of Science, Business Administration and Information Systems"
"fr" => "Master of Science, Business Administration and Information Systems"
]
"institution" => array:2 [
"fr" => "Copenhagen Business School"
"en" => "Copenhagen Business School"
]
"country" => array:2 [
"fr" => "Danemark"
"en" => "Denmark"
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2205}
}
2 => Essec\Faculty\Model\Diplome {#2206
#_index: null
#_id: null
#_source: array:6 [
"diplome" => "DIPLOMA"
"type" => array:2 [
"fr" => "Diplômes"
"en" => "Diplomas"
]
"year" => "2014"
"label" => array:2 [
"en" => "Bachelor of Science, Business administration"
"fr" => "Bachelor of Science, Science de gestion"
]
"institution" => array:2 [
"fr" => "University of Göttingen"
"en" => "University of Göttingen"
]
"country" => array:2 [
"fr" => "Allemagne"
"en" => "Germany"
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2205}
}
]
"bio" => array:2 [
"fr" => null
"en" => "<p>Christoph Mueller-Bloch is an Assistant Professor at ESSEC Business School. His research is primarily concerned with information systems governance and coordination, in particular in the context of blockchain and cryptocurrencies. His work has been published in journals such as the <i>Journal of the Association for Information Systems, European Journal of Information Systems,</i> and <i>Communications of the ACM</i>. He holds a Ph.D. from the IT University of Copenhagen.</p>\n"
]
"department" => array:2 [
"fr" => "Systèmes d’information, sciences de la décision et statistiques"
"en" => "Information Systems, Decision Sciences and Statistics"
]
"site" => array:2 [
"fr" => null
"en" => null
]
"industrrySectors" => array:2 [
"fr" => "Services et logiciels informatiques"
"en" => "IT Services & Software"
]
"researchFields" => array:2 [
"fr" => "Management des systèmes d'information - Cryptocurrencies - décentralisation - gouvernance des systèmes - blockchain"
"en" => "Management of Information Systems - Cryptocurrencies - decentralization - systems governance - blockchain"
]
"teachingFields" => array:2 [
"fr" => null
"en" => null
]
"distinctions" => array:1 [
0 => Essec\Faculty\Model\Distinction {#2211
#_index: null
#_id: null
#_source: array:6 [
"date" => "2021-12-31"
"label" => array:2 [
"fr" => "AIS Impact Award"
"en" => "AIS Impact Award"
]
"type" => array:2 [
"fr" => "Prix"
"en" => "Awards"
]
"tri" => " 1 "
"institution" => array:2 [
"fr" => null
"en" => null
]
"country" => array:2 [
"fr" => null
"en" => null
]
]
+lang: "fr"
+"parent": Essec\Faculty\Model\Profile {#2205}
}
]
"teaching" => []
"otherActivities" => []
"theses" => []
"indexedAt" => "2024-04-30T10:21:23.000Z"
"contributions" => array:13 [
0 => Essec\Faculty\Model\Contribution {#2213
#_index: "academ_contributions"
#_id: "13861"
#_source: array:18 [
"id" => "13861"
"slug" => "understanding-decentralization-of-decision-making-power-in-proof-of-stake-blockchains-an-agent-based-simulation-approach"
"yearMonth" => "2022-09"
"year" => "2022"
"title" => "Understanding decentralization of decision-making power in proof-of-stake blockchains: an agent-based simulation approach"
"description" => "MUELLER-BLOCH, C., ANDERSEN, J.V., SPASOVSKI, J. et HAHN, J. (2022). Understanding decentralization of decision-making power in proof-of-stake blockchains: an agent-based simulation approach. <i>European Journal of Information Systems</i>, In press, pp. 1-20."
"authors" => array:4 [
0 => array:3 [
"name" => "MUELLER-BLOCH Christoph"
"bid" => "B00791760"
"slug" => "mueller-bloch-christoph"
]
1 => array:1 [
"name" => "ANDERSEN Jonas Valbjørn"
]
2 => array:1 [
"name" => "SPASOVSKI Jason"
]
3 => array:1 [
"name" => "HAHN Jungpil"
]
]
"ouvrage" => ""
"keywords" => array:5 [
0 => "Blockchain"
1 => "consensus mechanism"
2 => "centralisation"
3 => "decentralisation,- decision- making power"
4 => "governance"
]
"updatedAt" => "2023-03-16 01:00:46"
"publicationUrl" => "https://doi.org/10.1080/0960085X.2022.2125840"
"publicationInfo" => array:3 [
"pages" => "1-20"
"volume" => "In press"
"number" => ""
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "Blockchain systems allow for securely keeping shared records of transactions in a decentralised way. This is enabled by algorithms called consensus mechanisms. Proof-of-work is the most prominent consensus mechanism, but environmentally unsustainable. Here, we focus on proof-of-stake, its best-known alternative. Importantly, decentralised decision-making power is not an inherent feature of blockchain systems, but a technological possibility. Numerous security incidents illustrate that decentralised control cannot be taken for granted. We there-fore study how key parameters affect the degree of decentralisation in proof-of-stake block-chain systems. Based on a real-world implementation of a proof-of-stake blockchain system, we conduct agent-based simulations to study how a range of parameters impact decentralisation. The results suggest that high numbers of initial potential validator nodes, large transactions, a high number of transactions, and a very high or very low positive validator network growth rate increase decentralisation. We find weak support for an impact of changes in transaction fees and initial stake distributions. Our study highlights how blockchain challenges our under-standing of decentralisation in information systems research, and contributes to understand-ing the governance mechanisms that lead to decentralisation in proof-of-stake blockchain systems as well as to designing proof-of-stake blockchain systems that are prone to decentralization and therefore more secure."
"en" => "Blockchain systems allow for securely keeping shared records of transactions in a decentralised way. This is enabled by algorithms called consensus mechanisms. Proof-of-work is the most prominent consensus mechanism, but environmentally unsustainable. Here, we focus on proof-of-stake, its best-known alternative. Importantly, decentralised decision-making power is not an inherent feature of blockchain systems, but a technological possibility. Numerous security incidents illustrate that decentralised control cannot be taken for granted. We there-fore study how key parameters affect the degree of decentralisation in proof-of-stake block-chain systems. Based on a real-world implementation of a proof-of-stake blockchain system, we conduct agent-based simulations to study how a range of parameters impact decentralisation. The results suggest that high numbers of initial potential validator nodes, large transactions, a high number of transactions, and a very high or very low positive validator network growth rate increase decentralisation. We find weak support for an impact of changes in transaction fees and initial stake distributions. Our study highlights how blockchain challenges our under-standing of decentralisation in information systems research, and contributes to understand-ing the governance mechanisms that lead to decentralisation in proof-of-stake blockchain systems as well as to designing proof-of-stake blockchain systems that are prone to decentralization and therefore more secure."
]
"authors_fields" => array:2 [
"fr" => "Systèmes d’Information, Sciences de la Décision et Statistiques"
"en" => "Information Systems, Decision Sciences and Statistics"
]
"indexedAt" => "2024-04-30T10:22:04.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 6.9620585
+"parent": null
}
1 => Essec\Faculty\Model\Contribution {#2215
#_index: "academ_contributions"
#_id: "13997"
#_source: array:18 [
"id" => "13997"
"slug" => "blockchain-based-digital-rights-management-systems-design-principles-for-the-music-industry"
"yearMonth" => "2023-04"
"year" => "2023"
"title" => "Blockchain-based digital rights management systems: Design principles for the music industry"
"description" => "CIRIELLO, R.F., TORBENSEN, A.C.G., HANSEN, M.R.P. et MUELLER-BLOCH, C. (2023). Blockchain-based digital rights management systems: Design principles for the music industry. <i>Electronic Markets</i>, 33(1), pp. 1-21."
"authors" => array:4 [
0 => array:3 [
"name" => "MUELLER-BLOCH Christoph"
"bid" => "B00791760"
"slug" => "mueller-bloch-christoph"
]
1 => array:1 [
"name" => "CIRIELLO Raffaele Fabio"
]
2 => array:1 [
"name" => "TORBENSEN Alexandra Cecilie Gjøl"
]
3 => array:1 [
"name" => "HANSEN Magnus Rotvit Perlt"
]
]
"ouvrage" => ""
"keywords" => array:7 [
0 => "Digital rights management"
1 => "Music industry"
2 => "Decentralization"
3 => "Blockchain"
4 => "Design principles"
5 => "Scenario-based design"
6 => "Design science research"
]
"updatedAt" => "2023-05-25 08:57:59"
"publicationUrl" => "https://doi.org/10.1007/s12525-023-00628-5"
"publicationInfo" => array:3 [
"pages" => "1-21"
"volume" => "33"
"number" => "1"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "Initially designed to protect intellectual property (IP) of digitalized information goods such as music, games, or books, existing centralized digital rights management (DRM) systems mostly serve the interests of major publishers, with scant inclusion of rights owners, creators, and consumers. Although various blockchain-based DRM systems have been proposed, most of them mirror existing counterproductive IP restrictions. Analyzing the music industry as a case in point, this paper proposes design principles for blockchain-based DRM systems that provide an integrated and flexible solution by enabling transparent music licensing structures, consistent and complete rights metadata, and efficient and transparent royalty payout. The solution can be achieved by storing rights metadata on a public distributed ledger, by validating metadata through a consensus mechanism on a permissioned blockchain, and by algorithmically enforcing royalty payout via stablecoin through a smart contract. The design principles were evaluated by industry experts, validating their benefit for the music industry by increasing surplus value that is currently destroyed through previous suboptimal designs."
"en" => "Initially designed to protect intellectual property (IP) of digitalized information goods such as music, games, or books, existing centralized digital rights management (DRM) systems mostly serve the interests of major publishers, with scant inclusion of rights owners, creators, and consumers. Although various blockchain-based DRM systems have been proposed, most of them mirror existing counterproductive IP restrictions. Analyzing the music industry as a case in point, this paper proposes design principles for blockchain-based DRM systems that provide an integrated and flexible solution by enabling transparent music licensing structures, consistent and complete rights metadata, and efficient and transparent royalty payout. The solution can be achieved by storing rights metadata on a public distributed ledger, by validating metadata through a consensus mechanism on a permissioned blockchain, and by algorithmically enforcing royalty payout via stablecoin through a smart contract. The design principles were evaluated by industry experts, validating their benefit for the music industry by increasing surplus value that is currently destroyed through previous suboptimal designs."
]
"authors_fields" => array:2 [
"fr" => "Systèmes d’Information, Sciences de la Décision et Statistiques"
"en" => "Information Systems, Decision Sciences and Statistics"
]
"indexedAt" => "2024-04-30T10:22:04.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 6.9620585
+"parent": null
}
2 => Essec\Faculty\Model\Contribution {#2217
#_index: "academ_contributions"
#_id: "14020"
#_source: array:18 [
"id" => "14020"
"slug" => "on-the-usefulness-of-cryptocurrencies"
"yearMonth" => "2022-12"
"year" => "2022"
"title" => "On the Usefulness of Cryptocurrencies"
"description" => "MUELLER-BLOCH, C. (2022). On the Usefulness of Cryptocurrencies. Dans: 2022 International Conference on Information Systems. Copenhagen."
"authors" => array:1 [
0 => array:3 [
"name" => "MUELLER-BLOCH Christoph"
"bid" => "B00791760"
"slug" => "mueller-bloch-christoph"
]
]
"ouvrage" => "2022 International Conference on Information Systems"
"keywords" => []
"updatedAt" => "2023-11-29 16:21:51"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Systèmes d’Information, Sciences de la Décision et Statistiques"
"en" => "Information Systems, Decision Sciences and Statistics"
]
"indexedAt" => "2024-04-30T10:22:04.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 6.9620585
+"parent": null
}
3 => Essec\Faculty\Model\Contribution {#2214
#_index: "academ_contributions"
#_id: "14218"
#_source: array:18 [
"id" => "14218"
"slug" => "blockchain-challenges-and-opportunities-for-management-research"
"yearMonth" => "2022-08"
"year" => "2022"
"title" => "Blockchain: Challenges and Opportunities for Management Research"
"description" => "KYRIAKOU, H. et MUELLER-BLOCH, C. (2022). Blockchain: Challenges and Opportunities for Management Research. Dans: 2022 Academy of Management Annual Meeting. Seattle."
"authors" => array:2 [
0 => array:3 [
"name" => "KYRIAKOU Harris"
"bid" => "B00791769"
"slug" => "kyriakou-harris"
]
1 => array:3 [
"name" => "MUELLER-BLOCH Christoph"
"bid" => "B00791760"
"slug" => "mueller-bloch-christoph"
]
]
"ouvrage" => "2022 Academy of Management Annual Meeting"
"keywords" => []
"updatedAt" => "2023-07-21 01:00:39"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Systèmes d’Information, Sciences de la Décision et Statistiques"
"en" => "Information Systems, Decision Sciences and Statistics"
]
"indexedAt" => "2024-04-30T10:22:04.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 6.9620585
+"parent": null
}
4 => Essec\Faculty\Model\Contribution {#2218
#_index: "academ_contributions"
#_id: "14775"
#_source: array:18 [
"id" => "14775"
"slug" => "opportunities-and-challenges-of-decentralization-in-the-blockchain-age"
"yearMonth" => "2024-08"
"year" => "2024"
"title" => "Opportunities and Challenges of Decentralization in the Blockchain Age"
"description" => "MUELLER-BLOCH, C. (2024). Opportunities and Challenges of Decentralization in the Blockchain Age. Dans: 2024 Academy of Management Annual Meeting. Chicago."
"authors" => array:1 [
0 => array:3 [
"name" => "MUELLER-BLOCH Christoph"
"bid" => "B00791760"
"slug" => "mueller-bloch-christoph"
]
]
"ouvrage" => "2024 Academy of Management Annual Meeting"
"keywords" => []
"updatedAt" => "2024-04-19 12:54:41"
"publicationUrl" => null
"publicationInfo" => array:3 [
"pages" => ""
"volume" => ""
"number" => ""
]
"type" => array:2 [
"fr" => "Communications dans une conférence"
"en" => "Presentations at an Academic or Professional conference"
]
"support_type" => array:2 [
"fr" => null
"en" => null
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => ""
"en" => ""
]
"authors_fields" => array:2 [
"fr" => "Systèmes d’Information, Sciences de la Décision et Statistiques"
"en" => "Information Systems, Decision Sciences and Statistics"
]
"indexedAt" => "2024-04-30T10:22:04.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 6.9620585
+"parent": null
}
5 => Essec\Faculty\Model\Contribution {#2212
#_index: "academ_contributions"
#_id: "12491"
#_source: array:18 [
"id" => "12491"
"slug" => "governance-in-the-blockchain-economy-a-framework-and-research-agenda"
"yearMonth" => "2018-10"
"year" => "2018"
"title" => "Governance in the Blockchain Economy: A Framework and Research Agenda"
"description" => "BECK, R., MUELLER-BLOCH, C. et KING, J.L. (2018). Governance in the Blockchain Economy: A Framework and Research Agenda. <i>Journal of the Association for Information Systems</i>, 19(10), pp. 1020-1034."
"authors" => array:3 [
0 => array:3 [
"name" => "MUELLER-BLOCH Christoph"
"bid" => "B00791760"
"slug" => "mueller-bloch-christoph"
]
1 => array:1 [
"name" => "BECK Roman"
]
2 => array:1 [
"name" => "KING John Leslie"
]
]
"ouvrage" => ""
"keywords" => array:9 [
0 => "Blockchain"
1 => "Distributed Ledger Technology"
2 => "Smart Contracts"
3 => "Decentralized Autonomous Organization"
4 => "Governance"
5 => "Agency Theory"
6 => "Decision Rights"
7 => "Accountability"
8 => "Incentives"
]
"updatedAt" => "2024-03-21 15:29:51"
"publicationUrl" => "https://aisel.aisnet.org/jais/vol19/iss10/1"
"publicationInfo" => array:3 [
"pages" => "1020-1034"
"volume" => "19"
"number" => "10"
]
"type" => array:2 [
"fr" => "Articles"
"en" => "Journal articles"
]
"support_type" => array:2 [
"fr" => "Revue scientifique"
"en" => "Scientific journal"
]
"countries" => array:2 [
"fr" => null
"en" => null
]
"abstract" => array:2 [
"fr" => "Blockchain technology is often referred to as a groundbreaking innovation and the harbinger of a new economic era. Blockchains may be capable of engendering a new type of economic system: the blockchain economy. In the blockchain economy, agreed-upon transactions would be enforced autonomously, following rules defined by smart contracts. The blockchain economy would manifest itself in a new form of organizational design—decentralized autonomous organizations (DAO)—which are organizations with governance rules specified in the blockchain. We discuss the blockchain economy along dimensions defined in the IT governance literature: decision rights, accountability, and incentives."
"en" => "Blockchain technology is often referred to as a groundbreaking innovation and the harbinger of a new economic era. Blockchains may be capable of engendering a new type of economic system: the blockchain economy. In the blockchain economy, agreed-upon transactions would be enforced autonomously, following rules defined by smart contracts. The blockchain economy would manifest itself in a new form of organizational design—decentralized autonomous organizations (DAO)—which are organizations with governance rules specified in the blockchain. We discuss the blockchain economy along dimensions defined in the IT governance literature: decision rights, accountability, and incentives."
]
"authors_fields" => array:2 [
"fr" => "Systèmes d’Information, Sciences de la Décision et Statistiques"
"en" => "Information Systems, Decision Sciences and Statistics"
]
"indexedAt" => "2024-04-30T10:22:04.000Z"
]
+lang: "fr"
+"_type": "_doc"
+"_score": 6.9620585
+"parent": null
}
6 => Essec\Faculty\Model\Contribution {#2216
#_index: "academ_contributions"
#_id: "12493"
#_source: array:18 [
"id" => "12493"
"slug" => "blockchain-research-in-information-systems-current-trends-and-an-inclusive-future-research-agenda"
"yearMonth" => "2019-09"
"year" => "2019"
"title" => "Blockchain Research in Information Systems: Current Trends and an Inclusive Future Research Agenda"
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9 => Essec\Faculty\Model\Contribution {#2221
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10 => Essec\Faculty\Model\Contribution {#2222
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11 => Essec\Faculty\Model\Contribution {#2223
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12 => Essec\Faculty\Model\Contribution {#2224
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