{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:DVBR2OWMEP6ROOPDP2DT73Q57N","short_pith_number":"pith:DVBR2OWM","canonical_record":{"source":{"id":"1905.13516","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-05-31T11:22:00Z","cross_cats_sorted":[],"title_canon_sha256":"a4fc5e77a2eaee66f749dfeb02fa6e03e27957ece17f430b6cd1732a4e11b310","abstract_canon_sha256":"e3b6442d17689799789116596122e7be4ed880949c0f4b52a04fcbc69da20447"},"schema_version":"1.0"},"canonical_sha256":"1d431d3acc23fd1739e37e873fee1dfb4ef30dab8ddd82673c00cea8797e7758","source":{"kind":"arxiv","id":"1905.13516","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.13516","created_at":"2026-05-17T23:44:34Z"},{"alias_kind":"arxiv_version","alias_value":"1905.13516v1","created_at":"2026-05-17T23:44:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.13516","created_at":"2026-05-17T23:44:34Z"},{"alias_kind":"pith_short_12","alias_value":"DVBR2OWMEP6R","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"DVBR2OWMEP6ROOPD","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"DVBR2OWM","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:DVBR2OWMEP6ROOPDP2DT73Q57N","target":"record","payload":{"canonical_record":{"source":{"id":"1905.13516","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-05-31T11:22:00Z","cross_cats_sorted":[],"title_canon_sha256":"a4fc5e77a2eaee66f749dfeb02fa6e03e27957ece17f430b6cd1732a4e11b310","abstract_canon_sha256":"e3b6442d17689799789116596122e7be4ed880949c0f4b52a04fcbc69da20447"},"schema_version":"1.0"},"canonical_sha256":"1d431d3acc23fd1739e37e873fee1dfb4ef30dab8ddd82673c00cea8797e7758","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:34.727816Z","signature_b64":"XkEObGeOfxdQaPggwqgqnSgpbtTVlm5Su9X9oaXY7xeNbjmFza2JggXarM+CIGhTrUSOOZt8pdkMnSuY1HDDDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d431d3acc23fd1739e37e873fee1dfb4ef30dab8ddd82673c00cea8797e7758","last_reissued_at":"2026-05-17T23:44:34.727386Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:34.727386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.13516","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":"2026-05-17T23:44:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yh3pO9ficoVxZgxMm2PIQNyGHA6FtXlQ1af3tqaCBLODyQQHXJtuY8SPoX1ZmB6FJzaELcUQzwkU1M2YE5NHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:28:48.621773Z"},"content_sha256":"de40bbe6aee6be3302c701c6ce3d7b2f24d77fe707b536c6022c2ff5d7d87658","schema_version":"1.0","event_id":"sha256:de40bbe6aee6be3302c701c6ce3d7b2f24d77fe707b536c6022c2ff5d7d87658"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:DVBR2OWMEP6ROOPDP2DT73Q57N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Foundations of Digital Arch{\\ae}oludology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"Abdallah Saffidine, Alex de Voogt, Cameron Browne, David Parlett, Dennis J. N. J. Soemers, Eddie Duggan, \\'Eric Piette, Fred Horn, Jo\\~ao Pedro Neto, Jorge Nuno Silva, Mark H. M. Winands, Matthew Stephenson, Michael Conrad, Simon M. Lucas, Steven Kelk, Thierry Depaulis, Ulrich Sch\\\"adler, Walter Crist","submitted_at":"2019-05-31T11:22:00Z","abstract_excerpt":"Digital Archaeoludology (DAL) is a new field of study involving the analysis and reconstruction of ancient games from incomplete descriptions and archaeological evidence using modern computational techniques. The aim is to provide digital tools and methods to help game historians and other researchers better understand traditional games, their development throughout recorded human history, and their relationship to the development of human culture and mathematical knowledge. This work is being explored in the ERC-funded Digital Ludeme Project.\n  The aim of this inaugural international research"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.13516","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":"2026-05-17T23:44:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hn3a3JZjEOTmLRTKdW4DoC76KY4MUK5q0K1F8ksslCfVOcVy7xVme4SepIaHE3oXEK7hU8DHag3t1ma/pRTFBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:28:48.622111Z"},"content_sha256":"71ab88eaa669719e67a6878880aafc57f917d70ee882422dc5032382a56877bd","schema_version":"1.0","event_id":"sha256:71ab88eaa669719e67a6878880aafc57f917d70ee882422dc5032382a56877bd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DVBR2OWMEP6ROOPDP2DT73Q57N/bundle.json","state_url":"https://pith.science/pith/DVBR2OWMEP6ROOPDP2DT73Q57N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DVBR2OWMEP6ROOPDP2DT73Q57N/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":"2026-06-03T01:28:48Z","links":{"resolver":"https://pith.science/pith/DVBR2OWMEP6ROOPDP2DT73Q57N","bundle":"https://pith.science/pith/DVBR2OWMEP6ROOPDP2DT73Q57N/bundle.json","state":"https://pith.science/pith/DVBR2OWMEP6ROOPDP2DT73Q57N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DVBR2OWMEP6ROOPDP2DT73Q57N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:DVBR2OWMEP6ROOPDP2DT73Q57N","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":"e3b6442d17689799789116596122e7be4ed880949c0f4b52a04fcbc69da20447","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-05-31T11:22:00Z","title_canon_sha256":"a4fc5e77a2eaee66f749dfeb02fa6e03e27957ece17f430b6cd1732a4e11b310"},"schema_version":"1.0","source":{"id":"1905.13516","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.13516","created_at":"2026-05-17T23:44:34Z"},{"alias_kind":"arxiv_version","alias_value":"1905.13516v1","created_at":"2026-05-17T23:44:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.13516","created_at":"2026-05-17T23:44:34Z"},{"alias_kind":"pith_short_12","alias_value":"DVBR2OWMEP6R","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"DVBR2OWMEP6ROOPD","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"DVBR2OWM","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:71ab88eaa669719e67a6878880aafc57f917d70ee882422dc5032382a56877bd","target":"graph","created_at":"2026-05-17T23:44:34Z","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":"Digital Archaeoludology (DAL) is a new field of study involving the analysis and reconstruction of ancient games from incomplete descriptions and archaeological evidence using modern computational techniques. The aim is to provide digital tools and methods to help game historians and other researchers better understand traditional games, their development throughout recorded human history, and their relationship to the development of human culture and mathematical knowledge. This work is being explored in the ERC-funded Digital Ludeme Project.\n  The aim of this inaugural international research","authors_text":"Abdallah Saffidine, Alex de Voogt, Cameron Browne, David Parlett, Dennis J. N. J. Soemers, Eddie Duggan, \\'Eric Piette, Fred Horn, Jo\\~ao Pedro Neto, Jorge Nuno Silva, Mark H. M. Winands, Matthew Stephenson, Michael Conrad, Simon M. Lucas, Steven Kelk, Thierry Depaulis, Ulrich Sch\\\"adler, Walter Crist","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-05-31T11:22:00Z","title":"Foundations of Digital Arch{\\ae}oludology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.13516","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:de40bbe6aee6be3302c701c6ce3d7b2f24d77fe707b536c6022c2ff5d7d87658","target":"record","created_at":"2026-05-17T23:44:34Z","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":"e3b6442d17689799789116596122e7be4ed880949c0f4b52a04fcbc69da20447","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-05-31T11:22:00Z","title_canon_sha256":"a4fc5e77a2eaee66f749dfeb02fa6e03e27957ece17f430b6cd1732a4e11b310"},"schema_version":"1.0","source":{"id":"1905.13516","kind":"arxiv","version":1}},"canonical_sha256":"1d431d3acc23fd1739e37e873fee1dfb4ef30dab8ddd82673c00cea8797e7758","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d431d3acc23fd1739e37e873fee1dfb4ef30dab8ddd82673c00cea8797e7758","first_computed_at":"2026-05-17T23:44:34.727386Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:34.727386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XkEObGeOfxdQaPggwqgqnSgpbtTVlm5Su9X9oaXY7xeNbjmFza2JggXarM+CIGhTrUSOOZt8pdkMnSuY1HDDDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:34.727816Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.13516","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de40bbe6aee6be3302c701c6ce3d7b2f24d77fe707b536c6022c2ff5d7d87658","sha256:71ab88eaa669719e67a6878880aafc57f917d70ee882422dc5032382a56877bd"],"state_sha256":"8a55f5f05e3401c2ea435d3d7ed972f19dcdc8fc2e8167e7bb0e38c6b85db7fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7ZEpMEW8x/nwrROae0VX+OSfzTTWtOvfUDB7aZ5Sdbz1djYKxos51P+Uha9LAnvY4ZLBL1ZEJ7V4ljJT+0HcCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T01:28:48.624298Z","bundle_sha256":"f33df6cf78c85a4a9cf562967c6d14438a323b5db112e8d6f2c083a53d66779e"}}