{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:TGTJLROXNYLW3WSBY6MY2IIZNA","short_pith_number":"pith:TGTJLROX","canonical_record":{"source":{"id":"0901.4728","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2009-01-29T17:34:36Z","cross_cats_sorted":["cs.LO"],"title_canon_sha256":"05530308737cfc17d802e22670d07d4f5a78682f16dc07b52a293fa8786f7f8f","abstract_canon_sha256":"9a7ee698baedb4e1d8f9f09f36bfb151e8565358f099cf083d345be67b35a063"},"schema_version":"1.0"},"canonical_sha256":"99a695c5d76e176dda41c7998d21196837f0471db0b1d9c48ad5d536e65a6dc5","source":{"kind":"arxiv","id":"0901.4728","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0901.4728","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"arxiv_version","alias_value":"0901.4728v1","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.4728","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"pith_short_12","alias_value":"TGTJLROXNYLW","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"pith_short_16","alias_value":"TGTJLROXNYLW3WSB","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"pith_short_8","alias_value":"TGTJLROX","created_at":"2026-07-04T15:37:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:TGTJLROXNYLW3WSBY6MY2IIZNA","target":"record","payload":{"canonical_record":{"source":{"id":"0901.4728","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2009-01-29T17:34:36Z","cross_cats_sorted":["cs.LO"],"title_canon_sha256":"05530308737cfc17d802e22670d07d4f5a78682f16dc07b52a293fa8786f7f8f","abstract_canon_sha256":"9a7ee698baedb4e1d8f9f09f36bfb151e8565358f099cf083d345be67b35a063"},"schema_version":"1.0"},"canonical_sha256":"99a695c5d76e176dda41c7998d21196837f0471db0b1d9c48ad5d536e65a6dc5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:37:01.661343Z","signature_b64":"6cIogW4PpvyJ3ibywFzRetEj6hsESmHdYfFoX9RLqO6eCQVujcI/0IssJX/nzB733MxZg218rwH+oUx3BPleCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99a695c5d76e176dda41c7998d21196837f0471db0b1d9c48ad5d536e65a6dc5","last_reissued_at":"2026-07-04T15:37:01.660864Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:37:01.660864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0901.4728","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":"2026-07-04T15:37:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fmjJc2SFpdc19wHBtHj/+8YAK0j3ZQqKF3tsMHEcGsf2Mf+/Jm6Yzr58x0jrbGGTfWaqi6vHxbc095tdNwYdCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T08:47:05.566778Z"},"content_sha256":"0b1f84c49626b72c7feef2eb24f6aa86e121521a63a9f1fb30d59841d6f1e504","schema_version":"1.0","event_id":"sha256:0b1f84c49626b72c7feef2eb24f6aa86e121521a63a9f1fb30d59841d6f1e504"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:TGTJLROXNYLW3WSBY6MY2IIZNA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Alpaga: A Tool for Solving Parity Games with Imperfect Information","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LO"],"primary_cat":"cs.GT","authors_text":"Dietmar Berwanger, Krishnendu Chatterjee, Laurent Doyen, Martin De Wulf, Thomas A. Henzinger","submitted_at":"2009-01-29T17:34:36Z","abstract_excerpt":"Alpaga is a solver for two-player parity games with imperfect information. Given the description of a game, it determines whether the first player can ensure to win and, if so, it constructs a winning strategy. The tool provides a symbolic implementation of a recent algorithm based on antichains."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.4728","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0901.4728/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:37:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b5uOpSMD0HvABVKKYLRYqRbHy25zO99sazBbYHgkYuB6WvHbLzFTz688/vaaivYYqX+b61W99eA873tlMeTiBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T08:47:05.567284Z"},"content_sha256":"6120e8e2650f07223c4d032104b3da4dc3cd711e2d3568efc85722d627aff8dc","schema_version":"1.0","event_id":"sha256:6120e8e2650f07223c4d032104b3da4dc3cd711e2d3568efc85722d627aff8dc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TGTJLROXNYLW3WSBY6MY2IIZNA/bundle.json","state_url":"https://pith.science/pith/TGTJLROXNYLW3WSBY6MY2IIZNA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TGTJLROXNYLW3WSBY6MY2IIZNA/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":"2026-08-06T08:47:05Z","links":{"resolver":"https://pith.science/pith/TGTJLROXNYLW3WSBY6MY2IIZNA","bundle":"https://pith.science/pith/TGTJLROXNYLW3WSBY6MY2IIZNA/bundle.json","state":"https://pith.science/pith/TGTJLROXNYLW3WSBY6MY2IIZNA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TGTJLROXNYLW3WSBY6MY2IIZNA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:TGTJLROXNYLW3WSBY6MY2IIZNA","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":"9a7ee698baedb4e1d8f9f09f36bfb151e8565358f099cf083d345be67b35a063","cross_cats_sorted":["cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2009-01-29T17:34:36Z","title_canon_sha256":"05530308737cfc17d802e22670d07d4f5a78682f16dc07b52a293fa8786f7f8f"},"schema_version":"1.0","source":{"id":"0901.4728","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0901.4728","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"arxiv_version","alias_value":"0901.4728v1","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.4728","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"pith_short_12","alias_value":"TGTJLROXNYLW","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"pith_short_16","alias_value":"TGTJLROXNYLW3WSB","created_at":"2026-07-04T15:37:01Z"},{"alias_kind":"pith_short_8","alias_value":"TGTJLROX","created_at":"2026-07-04T15:37:01Z"}],"graph_snapshots":[{"event_id":"sha256:6120e8e2650f07223c4d032104b3da4dc3cd711e2d3568efc85722d627aff8dc","target":"graph","created_at":"2026-07-04T15:37:01Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0901.4728/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Alpaga is a solver for two-player parity games with imperfect information. Given the description of a game, it determines whether the first player can ensure to win and, if so, it constructs a winning strategy. The tool provides a symbolic implementation of a recent algorithm based on antichains.","authors_text":"Dietmar Berwanger, Krishnendu Chatterjee, Laurent Doyen, Martin De Wulf, Thomas A. Henzinger","cross_cats":["cs.LO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2009-01-29T17:34:36Z","title":"Alpaga: A Tool for Solving Parity Games with Imperfect Information"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.4728","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":"sha256:0b1f84c49626b72c7feef2eb24f6aa86e121521a63a9f1fb30d59841d6f1e504","target":"record","created_at":"2026-07-04T15:37:01Z","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":"9a7ee698baedb4e1d8f9f09f36bfb151e8565358f099cf083d345be67b35a063","cross_cats_sorted":["cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2009-01-29T17:34:36Z","title_canon_sha256":"05530308737cfc17d802e22670d07d4f5a78682f16dc07b52a293fa8786f7f8f"},"schema_version":"1.0","source":{"id":"0901.4728","kind":"arxiv","version":1}},"canonical_sha256":"99a695c5d76e176dda41c7998d21196837f0471db0b1d9c48ad5d536e65a6dc5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99a695c5d76e176dda41c7998d21196837f0471db0b1d9c48ad5d536e65a6dc5","first_computed_at":"2026-07-04T15:37:01.660864Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:37:01.660864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6cIogW4PpvyJ3ibywFzRetEj6hsESmHdYfFoX9RLqO6eCQVujcI/0IssJX/nzB733MxZg218rwH+oUx3BPleCg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:37:01.661343Z","signed_message":"canonical_sha256_bytes"},"source_id":"0901.4728","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b1f84c49626b72c7feef2eb24f6aa86e121521a63a9f1fb30d59841d6f1e504","sha256:6120e8e2650f07223c4d032104b3da4dc3cd711e2d3568efc85722d627aff8dc"],"state_sha256":"926907b5a611efc8f893c060fc52373061f0b5340f643b3fa481a3b378afc70d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZDcwyC7QAYeDQr3dlCSaFQ8x51AuYPxJAa76tHGxqQ8uCgkg45vgG7XWD0C1Meombi8tGCQ6TneD9jO3cH1ZCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T08:47:05.571008Z","bundle_sha256":"ea4389abf2b85286c958ee96eefd31ca6ee1d41dc47feb10bfe4e8cd0d051b11"}}