{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:MNVWSKSYTDWJHMZ5YWY7QPF5E7","short_pith_number":"pith:MNVWSKSY","canonical_record":{"source":{"id":"1907.00246","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-06-29T17:33:12Z","cross_cats_sorted":[],"title_canon_sha256":"1ff0a9ef347fc7b1d3b7c59134c3963169e0d3d11f1ca4c523f92e52dc3e5058","abstract_canon_sha256":"e30ed035de766b69e4182e2248936eb9407b95afec00a829df09fa3abbc3b2f4"},"schema_version":"1.0"},"canonical_sha256":"636b692a5898ec93b33dc5b1f83cbd27d8c7c548f80fb426060d3feb55f223bd","source":{"kind":"arxiv","id":"1907.00246","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.00246","created_at":"2026-05-17T23:41:52Z"},{"alias_kind":"arxiv_version","alias_value":"1907.00246v1","created_at":"2026-05-17T23:41:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.00246","created_at":"2026-05-17T23:41:52Z"},{"alias_kind":"pith_short_12","alias_value":"MNVWSKSYTDWJ","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MNVWSKSYTDWJHMZ5","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MNVWSKSY","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:MNVWSKSYTDWJHMZ5YWY7QPF5E7","target":"record","payload":{"canonical_record":{"source":{"id":"1907.00246","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-06-29T17:33:12Z","cross_cats_sorted":[],"title_canon_sha256":"1ff0a9ef347fc7b1d3b7c59134c3963169e0d3d11f1ca4c523f92e52dc3e5058","abstract_canon_sha256":"e30ed035de766b69e4182e2248936eb9407b95afec00a829df09fa3abbc3b2f4"},"schema_version":"1.0"},"canonical_sha256":"636b692a5898ec93b33dc5b1f83cbd27d8c7c548f80fb426060d3feb55f223bd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:52.358502Z","signature_b64":"cd1qE8u5CkCA2AaOEO6q1vgsTTV68CmdwKZc9R+qXM0EFE6JHr7DV2z1iQUdyzY8ck1+POFKq99Rl5MiRbLKDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"636b692a5898ec93b33dc5b1f83cbd27d8c7c548f80fb426060d3feb55f223bd","last_reissued_at":"2026-05-17T23:41:52.357824Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:52.357824Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.00246","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":"2026-05-17T23:41:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CKMfW1wuPC9l+MVQz5c411E+Or3LfW2s4a0LiRfWEpU4guZKMxK8Yi+gJxI5eI+xmWtQ5wEwZY32/8eTd36/BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T03:42:31.226434Z"},"content_sha256":"66b7aba97f2bf41f62bb1bdae6efd559786db4f41248276d77f9fe2c1ebd68fe","schema_version":"1.0","event_id":"sha256:66b7aba97f2bf41f62bb1bdae6efd559786db4f41248276d77f9fe2c1ebd68fe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:MNVWSKSYTDWJHMZ5YWY7QPF5E7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ludii as a Competition Platform","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"Cameron Browne, Dennis J. N. J. Soemers, \\'Eric Piette, Matthew Stephenson","submitted_at":"2019-06-29T17:33:12Z","abstract_excerpt":"Ludii is a general game system being developed as part of the ERC-funded Digital Ludeme Project (DLP). While its primary aim is to model, play, and analyse the full range of traditional strategy games, Ludii also has the potential to support a wide range of AI research topics and competitions. This paper describes some of the future competitions and challenges that we intend to run using the Ludii system, highlighting some of its most important aspects that can potentially lead to many algorithm improvements and new avenues of research. We compare and contrast our proposed competition motivati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.00246","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":"2026-05-17T23:41:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kFaKv43v6j02dMXkG+PGs9w9QhaOCRM3Q8j0lzwXY8JT4lKok2xhkkxqC/KIxPK8iPuz/VczC0Dh7AAOCiQ9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T03:42:31.226789Z"},"content_sha256":"a9a60e7229557df702418bdc780837d4c00040ece9fe433e2ee49ccba7099910","schema_version":"1.0","event_id":"sha256:a9a60e7229557df702418bdc780837d4c00040ece9fe433e2ee49ccba7099910"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MNVWSKSYTDWJHMZ5YWY7QPF5E7/bundle.json","state_url":"https://pith.science/pith/MNVWSKSYTDWJHMZ5YWY7QPF5E7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MNVWSKSYTDWJHMZ5YWY7QPF5E7/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":"2026-06-22T03:42:31Z","links":{"resolver":"https://pith.science/pith/MNVWSKSYTDWJHMZ5YWY7QPF5E7","bundle":"https://pith.science/pith/MNVWSKSYTDWJHMZ5YWY7QPF5E7/bundle.json","state":"https://pith.science/pith/MNVWSKSYTDWJHMZ5YWY7QPF5E7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MNVWSKSYTDWJHMZ5YWY7QPF5E7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:MNVWSKSYTDWJHMZ5YWY7QPF5E7","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":"e30ed035de766b69e4182e2248936eb9407b95afec00a829df09fa3abbc3b2f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-06-29T17:33:12Z","title_canon_sha256":"1ff0a9ef347fc7b1d3b7c59134c3963169e0d3d11f1ca4c523f92e52dc3e5058"},"schema_version":"1.0","source":{"id":"1907.00246","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.00246","created_at":"2026-05-17T23:41:52Z"},{"alias_kind":"arxiv_version","alias_value":"1907.00246v1","created_at":"2026-05-17T23:41:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.00246","created_at":"2026-05-17T23:41:52Z"},{"alias_kind":"pith_short_12","alias_value":"MNVWSKSYTDWJ","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MNVWSKSYTDWJHMZ5","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MNVWSKSY","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:a9a60e7229557df702418bdc780837d4c00040ece9fe433e2ee49ccba7099910","target":"graph","created_at":"2026-05-17T23:41:52Z","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":"Ludii is a general game system being developed as part of the ERC-funded Digital Ludeme Project (DLP). While its primary aim is to model, play, and analyse the full range of traditional strategy games, Ludii also has the potential to support a wide range of AI research topics and competitions. This paper describes some of the future competitions and challenges that we intend to run using the Ludii system, highlighting some of its most important aspects that can potentially lead to many algorithm improvements and new avenues of research. We compare and contrast our proposed competition motivati","authors_text":"Cameron Browne, Dennis J. N. J. Soemers, \\'Eric Piette, Matthew Stephenson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-06-29T17:33:12Z","title":"Ludii as a Competition Platform"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.00246","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":"sha256:66b7aba97f2bf41f62bb1bdae6efd559786db4f41248276d77f9fe2c1ebd68fe","target":"record","created_at":"2026-05-17T23:41:52Z","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":"e30ed035de766b69e4182e2248936eb9407b95afec00a829df09fa3abbc3b2f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2019-06-29T17:33:12Z","title_canon_sha256":"1ff0a9ef347fc7b1d3b7c59134c3963169e0d3d11f1ca4c523f92e52dc3e5058"},"schema_version":"1.0","source":{"id":"1907.00246","kind":"arxiv","version":1}},"canonical_sha256":"636b692a5898ec93b33dc5b1f83cbd27d8c7c548f80fb426060d3feb55f223bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"636b692a5898ec93b33dc5b1f83cbd27d8c7c548f80fb426060d3feb55f223bd","first_computed_at":"2026-05-17T23:41:52.357824Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:52.357824Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cd1qE8u5CkCA2AaOEO6q1vgsTTV68CmdwKZc9R+qXM0EFE6JHr7DV2z1iQUdyzY8ck1+POFKq99Rl5MiRbLKDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:52.358502Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.00246","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66b7aba97f2bf41f62bb1bdae6efd559786db4f41248276d77f9fe2c1ebd68fe","sha256:a9a60e7229557df702418bdc780837d4c00040ece9fe433e2ee49ccba7099910"],"state_sha256":"a51a7b8ca194760056de44d6444b283c1cb337e161406373539b1bf7fac75abc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zx0Fu8UjVousfgOEB1w6BBDBsMYkUZ7opJ/HrnSvUf6NmSW1Pz9N7FVR89uCDFvRHyXgZOljA/SpFXrkerb/BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T03:42:31.228911Z","bundle_sha256":"6b3a5ac73225701de11c8207c3c83495ed9ce3a6f884cafb3dbce237d7ff69f3"}}