{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:PRGFPVASLKT2TUJB2JIBWB63AE","short_pith_number":"pith:PRGFPVAS","canonical_record":{"source":{"id":"1109.4201","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-09-20T03:11:40Z","cross_cats_sorted":["cs.GT","physics.soc-ph"],"title_canon_sha256":"c34936ec32839fd54b85df250ab948fb4d2c9ba3fe231d3f3c25136df8507503","abstract_canon_sha256":"6520a344de9b29df0cdc7f5a92617d7b8cc3817284bb77f79646024a73cb2923"},"schema_version":"1.0"},"canonical_sha256":"7c4c57d4125aa7a9d121d2501b07db01066bec2560ece840eda982803e8adcf3","source":{"kind":"arxiv","id":"1109.4201","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4201","created_at":"2026-05-18T04:12:43Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4201v1","created_at":"2026-05-18T04:12:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4201","created_at":"2026-05-18T04:12:43Z"},{"alias_kind":"pith_short_12","alias_value":"PRGFPVASLKT2","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PRGFPVASLKT2TUJB","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PRGFPVAS","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:PRGFPVASLKT2TUJB2JIBWB63AE","target":"record","payload":{"canonical_record":{"source":{"id":"1109.4201","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-09-20T03:11:40Z","cross_cats_sorted":["cs.GT","physics.soc-ph"],"title_canon_sha256":"c34936ec32839fd54b85df250ab948fb4d2c9ba3fe231d3f3c25136df8507503","abstract_canon_sha256":"6520a344de9b29df0cdc7f5a92617d7b8cc3817284bb77f79646024a73cb2923"},"schema_version":"1.0"},"canonical_sha256":"7c4c57d4125aa7a9d121d2501b07db01066bec2560ece840eda982803e8adcf3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:12:43.969172Z","signature_b64":"7wKYA7hprJuFdPn9DPeTVz3/tepV9hP80f4iL32MOxPXEiivfgl5S7S4iceW2/0gsiyfGCw68RFZIs9YWSM8Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c4c57d4125aa7a9d121d2501b07db01066bec2560ece840eda982803e8adcf3","last_reissued_at":"2026-05-18T04:12:43.968485Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:12:43.968485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.4201","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:12:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ANZCy7vg+3u8wOi09Qo58KGDbOFO3FszKZtJHso+NtrsjuQ7Hx+ssRT8b7cdmEpRgAFWnhcBMnlEOyjDThZBCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T06:45:12.706612Z"},"content_sha256":"79afa9e16f3b54e3bfda1effa7112a60f853bc840239a5db7bcadb330181d091","schema_version":"1.0","event_id":"sha256:79afa9e16f3b54e3bfda1effa7112a60f853bc840239a5db7bcadb330181d091"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:PRGFPVASLKT2TUJB2JIBWB63AE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Production and Network Formation Games with Content Heterogeneity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.GT","physics.soc-ph"],"primary_cat":"cs.SI","authors_text":"Jaeok Park, Mihaela van der Schaar, Yu Zhang","submitted_at":"2011-09-20T03:11:40Z","abstract_excerpt":"Online social networks (e.g. Facebook, Twitter, Youtube) provide a popular, cost-effective and scalable framework for sharing user-generated contents. This paper addresses the intrinsic incentive problems residing in social networks using a game-theoretic model where individual users selfishly trade off the costs of forming links (i.e. whom they interact with) and producing contents personally against the potential rewards from doing so. Departing from the assumption that contents produced by difference users is perfectly substitutable, we explicitly consider heterogeneity in user-generated co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4201","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:12:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HavRLmYIk6lNZpx938a/OlpFjyMxjbXXwk9OncJqClBhCEmarAZGBoBO954vgiRGgnWsyyiL/oFhAscPTIchAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T06:45:12.707259Z"},"content_sha256":"65351a9767d08be770aaf0f51463783a63957fd812071be0b9cd405a60d1a5b7","schema_version":"1.0","event_id":"sha256:65351a9767d08be770aaf0f51463783a63957fd812071be0b9cd405a60d1a5b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PRGFPVASLKT2TUJB2JIBWB63AE/bundle.json","state_url":"https://pith.science/pith/PRGFPVASLKT2TUJB2JIBWB63AE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PRGFPVASLKT2TUJB2JIBWB63AE/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-19T06:45:12Z","links":{"resolver":"https://pith.science/pith/PRGFPVASLKT2TUJB2JIBWB63AE","bundle":"https://pith.science/pith/PRGFPVASLKT2TUJB2JIBWB63AE/bundle.json","state":"https://pith.science/pith/PRGFPVASLKT2TUJB2JIBWB63AE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PRGFPVASLKT2TUJB2JIBWB63AE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PRGFPVASLKT2TUJB2JIBWB63AE","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"6520a344de9b29df0cdc7f5a92617d7b8cc3817284bb77f79646024a73cb2923","cross_cats_sorted":["cs.GT","physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-09-20T03:11:40Z","title_canon_sha256":"c34936ec32839fd54b85df250ab948fb4d2c9ba3fe231d3f3c25136df8507503"},"schema_version":"1.0","source":{"id":"1109.4201","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4201","created_at":"2026-05-18T04:12:43Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4201v1","created_at":"2026-05-18T04:12:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4201","created_at":"2026-05-18T04:12:43Z"},{"alias_kind":"pith_short_12","alias_value":"PRGFPVASLKT2","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PRGFPVASLKT2TUJB","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PRGFPVAS","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:65351a9767d08be770aaf0f51463783a63957fd812071be0b9cd405a60d1a5b7","target":"graph","created_at":"2026-05-18T04:12:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Online social networks (e.g. Facebook, Twitter, Youtube) provide a popular, cost-effective and scalable framework for sharing user-generated contents. This paper addresses the intrinsic incentive problems residing in social networks using a game-theoretic model where individual users selfishly trade off the costs of forming links (i.e. whom they interact with) and producing contents personally against the potential rewards from doing so. Departing from the assumption that contents produced by difference users is perfectly substitutable, we explicitly consider heterogeneity in user-generated co","authors_text":"Jaeok Park, Mihaela van der Schaar, Yu Zhang","cross_cats":["cs.GT","physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-09-20T03:11:40Z","title":"Production and Network Formation Games with Content Heterogeneity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4201","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:79afa9e16f3b54e3bfda1effa7112a60f853bc840239a5db7bcadb330181d091","target":"record","created_at":"2026-05-18T04:12:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"6520a344de9b29df0cdc7f5a92617d7b8cc3817284bb77f79646024a73cb2923","cross_cats_sorted":["cs.GT","physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2011-09-20T03:11:40Z","title_canon_sha256":"c34936ec32839fd54b85df250ab948fb4d2c9ba3fe231d3f3c25136df8507503"},"schema_version":"1.0","source":{"id":"1109.4201","kind":"arxiv","version":1}},"canonical_sha256":"7c4c57d4125aa7a9d121d2501b07db01066bec2560ece840eda982803e8adcf3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c4c57d4125aa7a9d121d2501b07db01066bec2560ece840eda982803e8adcf3","first_computed_at":"2026-05-18T04:12:43.968485Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:43.968485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7wKYA7hprJuFdPn9DPeTVz3/tepV9hP80f4iL32MOxPXEiivfgl5S7S4iceW2/0gsiyfGCw68RFZIs9YWSM8Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:43.969172Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.4201","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79afa9e16f3b54e3bfda1effa7112a60f853bc840239a5db7bcadb330181d091","sha256:65351a9767d08be770aaf0f51463783a63957fd812071be0b9cd405a60d1a5b7"],"state_sha256":"2ef2f97e30ca850e3e6dd11acbaf0dec4a2eae0f1e246e7e59fee89a79d2e27a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7POuBRtxjCLv4lfRKm4wg2fjbuUPdhTn/CVNaYaXwYzVOuZrKj/jR2PfRaKseo5vnISr3h/a5vRvJfQFUhviDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T06:45:12.710015Z","bundle_sha256":"8fc9eb17cd9281f8d0a8cc6c5a7b833dd243c401cf86445f1786211c463c7e6a"}}