{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:RKK4BEXNM2XH6OGYTPGCXPOTVA","short_pith_number":"pith:RKK4BEXN","canonical_record":{"source":{"id":"0812.0956","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2008-12-04T15:43:16Z","cross_cats_sorted":[],"title_canon_sha256":"28430ec2101d8f7a4a92c9249702fe0b48668562242dd92ae9864f0ec76292ea","abstract_canon_sha256":"5ffa33eaef9cf5eaaffdad849d8b335be5ee4695df1a094d622da337f2d44d57"},"schema_version":"1.0"},"canonical_sha256":"8a95c092ed66ae7f38d89bcc2bbdd3a818705248a489b010cb183403b800b6f0","source":{"kind":"arxiv","id":"0812.0956","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.0956","created_at":"2026-05-18T04:41:25Z"},{"alias_kind":"arxiv_version","alias_value":"0812.0956v2","created_at":"2026-05-18T04:41:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.0956","created_at":"2026-05-18T04:41:25Z"},{"alias_kind":"pith_short_12","alias_value":"RKK4BEXNM2XH","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"RKK4BEXNM2XH6OGY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"RKK4BEXN","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:RKK4BEXNM2XH6OGYTPGCXPOTVA","target":"record","payload":{"canonical_record":{"source":{"id":"0812.0956","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2008-12-04T15:43:16Z","cross_cats_sorted":[],"title_canon_sha256":"28430ec2101d8f7a4a92c9249702fe0b48668562242dd92ae9864f0ec76292ea","abstract_canon_sha256":"5ffa33eaef9cf5eaaffdad849d8b335be5ee4695df1a094d622da337f2d44d57"},"schema_version":"1.0"},"canonical_sha256":"8a95c092ed66ae7f38d89bcc2bbdd3a818705248a489b010cb183403b800b6f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:25.569052Z","signature_b64":"HEzzJd19pwS+Cm2fROCcTPzLlMvxX4qS5fvbVRX6Bcl969JQyYwHPeIECO9U7WFDihVqu0g7aavwawn84NyYCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a95c092ed66ae7f38d89bcc2bbdd3a818705248a489b010cb183403b800b6f0","last_reissued_at":"2026-05-18T04:41:25.568578Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:25.568578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0812.0956","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:41:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0pHOfEit+L5yrNfIhVsk51a+Rx4qmVnXf6+wri6BblvwZuyy+SoeyNkSU1CygW/K3Z0T1nncAyNJf1CQtoDRAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T15:31:03.589254Z"},"content_sha256":"e769351d744a9ad30d340959c5d073617cc7eb7902f1a523fd51e3b99fef03b0","schema_version":"1.0","event_id":"sha256:e769351d744a9ad30d340959c5d073617cc7eb7902f1a523fd51e3b99fef03b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:RKK4BEXNM2XH6OGYTPGCXPOTVA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"EcoTRADE - a multi player network game of a tradable permit market for biodiversity credits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GT","authors_text":"Florian Hartig, Martin Drechsler, Martin Horn","submitted_at":"2008-12-04T15:43:16Z","abstract_excerpt":"EcoTRADE is a multi player network game of a virtual biodiversity credit market. Each player controls the land use of a certain amount of parcels on a virtual landscape. The biodiversity credits of a particular parcel depend on neighboring parcels, which may be owned by other players. The game can be used to study the strategies of players in experiments or classroom games and also as a communication tool for stakeholders participating in credit markets that include spatially interdependent credits."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.0956","kind":"arxiv","version":2},"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":"2026-05-18T04:41:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vSm7MbQI0B4kBY9MfTi/jP5EN8jJKxlPXfDguvcfiNK79zetIvVLRtwiVOsjCYEHguDj/9EmUQ8sTf3/5dvCBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T15:31:03.589930Z"},"content_sha256":"bcd07e1c733436c5dcc9a2b713a85d0be4a41e18267c7aeb43be65e354bbd0bc","schema_version":"1.0","event_id":"sha256:bcd07e1c733436c5dcc9a2b713a85d0be4a41e18267c7aeb43be65e354bbd0bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RKK4BEXNM2XH6OGYTPGCXPOTVA/bundle.json","state_url":"https://pith.science/pith/RKK4BEXNM2XH6OGYTPGCXPOTVA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RKK4BEXNM2XH6OGYTPGCXPOTVA/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":"2026-06-07T15:31:03Z","links":{"resolver":"https://pith.science/pith/RKK4BEXNM2XH6OGYTPGCXPOTVA","bundle":"https://pith.science/pith/RKK4BEXNM2XH6OGYTPGCXPOTVA/bundle.json","state":"https://pith.science/pith/RKK4BEXNM2XH6OGYTPGCXPOTVA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RKK4BEXNM2XH6OGYTPGCXPOTVA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:RKK4BEXNM2XH6OGYTPGCXPOTVA","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":"5ffa33eaef9cf5eaaffdad849d8b335be5ee4695df1a094d622da337f2d44d57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2008-12-04T15:43:16Z","title_canon_sha256":"28430ec2101d8f7a4a92c9249702fe0b48668562242dd92ae9864f0ec76292ea"},"schema_version":"1.0","source":{"id":"0812.0956","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.0956","created_at":"2026-05-18T04:41:25Z"},{"alias_kind":"arxiv_version","alias_value":"0812.0956v2","created_at":"2026-05-18T04:41:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.0956","created_at":"2026-05-18T04:41:25Z"},{"alias_kind":"pith_short_12","alias_value":"RKK4BEXNM2XH","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"RKK4BEXNM2XH6OGY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"RKK4BEXN","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:bcd07e1c733436c5dcc9a2b713a85d0be4a41e18267c7aeb43be65e354bbd0bc","target":"graph","created_at":"2026-05-18T04:41:25Z","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":"EcoTRADE is a multi player network game of a virtual biodiversity credit market. Each player controls the land use of a certain amount of parcels on a virtual landscape. The biodiversity credits of a particular parcel depend on neighboring parcels, which may be owned by other players. The game can be used to study the strategies of players in experiments or classroom games and also as a communication tool for stakeholders participating in credit markets that include spatially interdependent credits.","authors_text":"Florian Hartig, Martin Drechsler, Martin Horn","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2008-12-04T15:43:16Z","title":"EcoTRADE - a multi player network game of a tradable permit market for biodiversity credits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.0956","kind":"arxiv","version":2},"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:e769351d744a9ad30d340959c5d073617cc7eb7902f1a523fd51e3b99fef03b0","target":"record","created_at":"2026-05-18T04:41:25Z","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":"5ffa33eaef9cf5eaaffdad849d8b335be5ee4695df1a094d622da337f2d44d57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2008-12-04T15:43:16Z","title_canon_sha256":"28430ec2101d8f7a4a92c9249702fe0b48668562242dd92ae9864f0ec76292ea"},"schema_version":"1.0","source":{"id":"0812.0956","kind":"arxiv","version":2}},"canonical_sha256":"8a95c092ed66ae7f38d89bcc2bbdd3a818705248a489b010cb183403b800b6f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a95c092ed66ae7f38d89bcc2bbdd3a818705248a489b010cb183403b800b6f0","first_computed_at":"2026-05-18T04:41:25.568578Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:25.568578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HEzzJd19pwS+Cm2fROCcTPzLlMvxX4qS5fvbVRX6Bcl969JQyYwHPeIECO9U7WFDihVqu0g7aavwawn84NyYCg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:25.569052Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.0956","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e769351d744a9ad30d340959c5d073617cc7eb7902f1a523fd51e3b99fef03b0","sha256:bcd07e1c733436c5dcc9a2b713a85d0be4a41e18267c7aeb43be65e354bbd0bc"],"state_sha256":"ccbc4c8dddaee19ce803a6fdcf1d7b1dbaf775fe4b1eb3d5e8ebd434336b54fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rAdWs64zbkEBfhHAyLNxPuFvEQ/nPn0qkXu8md74Csz/RA9IY7jzj+Q6eOQwoQKNYFX36e2OQTX6KwZa+WjgDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T15:31:03.593479Z","bundle_sha256":"ac170f27f2092832c8ff49fdb380572b3c23fa5b30fd09e90730351ccb035b66"}}