{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:X7ACLPZF3UO3STL4G2W5RM6FLD","short_pith_number":"pith:X7ACLPZF","canonical_record":{"source":{"id":"1109.5663","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-09-26T18:27:26Z","cross_cats_sorted":[],"title_canon_sha256":"32409c1fdb890f0b848b5c72eeb3c77290da0c4c731a49d76d86533fb2a6db55","abstract_canon_sha256":"19ab1a77640ab8b87438b4304f5c3c218a00e34844744f3e82d059f63d8079d3"},"schema_version":"1.0"},"canonical_sha256":"bfc025bf25dd1db94d7c36add8b3c558d3f3068d6ee920e56d5e91d35da374eb","source":{"kind":"arxiv","id":"1109.5663","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.5663","created_at":"2026-05-18T04:12:19Z"},{"alias_kind":"arxiv_version","alias_value":"1109.5663v1","created_at":"2026-05-18T04:12:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.5663","created_at":"2026-05-18T04:12:19Z"},{"alias_kind":"pith_short_12","alias_value":"X7ACLPZF3UO3","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"X7ACLPZF3UO3STL4","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"X7ACLPZF","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:X7ACLPZF3UO3STL4G2W5RM6FLD","target":"record","payload":{"canonical_record":{"source":{"id":"1109.5663","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-09-26T18:27:26Z","cross_cats_sorted":[],"title_canon_sha256":"32409c1fdb890f0b848b5c72eeb3c77290da0c4c731a49d76d86533fb2a6db55","abstract_canon_sha256":"19ab1a77640ab8b87438b4304f5c3c218a00e34844744f3e82d059f63d8079d3"},"schema_version":"1.0"},"canonical_sha256":"bfc025bf25dd1db94d7c36add8b3c558d3f3068d6ee920e56d5e91d35da374eb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:12:19.049243Z","signature_b64":"ym64/LlZiyAnvbg3HMzKdeSc9HgBfXuimZWcFCcnTZ+GIK1tZRzgdmrZQVnFu4LwKa+jldasQmdtp0/fwQ/eAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bfc025bf25dd1db94d7c36add8b3c558d3f3068d6ee920e56d5e91d35da374eb","last_reissued_at":"2026-05-18T04:12:19.048858Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:12:19.048858Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.5663","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":"2026-05-18T04:12:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"llwBrn3sD+bna7wmxkk5eZL7wESPAVreC7q0Jab8OPswgthLZyGfk4ardJ5NITe7+g4j2k9M/p1eAe8q0eHrBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T21:37:42.234839Z"},"content_sha256":"a72228b20eb9fc0b8f624a735e791894d7955b7e656e20d0e6584f6ec9585aa4","schema_version":"1.0","event_id":"sha256:a72228b20eb9fc0b8f624a735e791894d7955b7e656e20d0e6584f6ec9585aa4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:X7ACLPZF3UO3STL4G2W5RM6FLD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Deterministic Part of IPC-4: An Overview","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"J. Hoffmann, S. Edelkamp","submitted_at":"2011-09-26T18:27:26Z","abstract_excerpt":"We provide an overview of the organization and results of the deterministic part of the 4th International Planning Competition, i.e., of the part concerned with evaluating systems doing deterministic planning. IPC-4 attracted even more competing systems than its already large predecessors, and the competition event was revised in several important respects. After giving an introduction to the IPC, we briefly explain the main differences between the deterministic part of IPC-4 and its predecessors. We then introduce formally the language used, called PDDL2.2 that extends PDDL2.1 by derived pred"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.5663","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":"2026-05-18T04:12:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1tEsH7LniaALL0pVzDMWEz4pk7gXLGINVsWlqmQQGj+M8yVChgUEXOo6AuDuUqXwRnUWoXglHs1TdVZb+XOuBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T21:37:42.235526Z"},"content_sha256":"6b79893e5fc03d7c205e3504d18d1a4b545ca87326854a1c15fee40215f688f9","schema_version":"1.0","event_id":"sha256:6b79893e5fc03d7c205e3504d18d1a4b545ca87326854a1c15fee40215f688f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X7ACLPZF3UO3STL4G2W5RM6FLD/bundle.json","state_url":"https://pith.science/pith/X7ACLPZF3UO3STL4G2W5RM6FLD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X7ACLPZF3UO3STL4G2W5RM6FLD/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":"2026-05-20T21:37:42Z","links":{"resolver":"https://pith.science/pith/X7ACLPZF3UO3STL4G2W5RM6FLD","bundle":"https://pith.science/pith/X7ACLPZF3UO3STL4G2W5RM6FLD/bundle.json","state":"https://pith.science/pith/X7ACLPZF3UO3STL4G2W5RM6FLD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X7ACLPZF3UO3STL4G2W5RM6FLD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:X7ACLPZF3UO3STL4G2W5RM6FLD","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":"19ab1a77640ab8b87438b4304f5c3c218a00e34844744f3e82d059f63d8079d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-09-26T18:27:26Z","title_canon_sha256":"32409c1fdb890f0b848b5c72eeb3c77290da0c4c731a49d76d86533fb2a6db55"},"schema_version":"1.0","source":{"id":"1109.5663","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.5663","created_at":"2026-05-18T04:12:19Z"},{"alias_kind":"arxiv_version","alias_value":"1109.5663v1","created_at":"2026-05-18T04:12:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.5663","created_at":"2026-05-18T04:12:19Z"},{"alias_kind":"pith_short_12","alias_value":"X7ACLPZF3UO3","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"X7ACLPZF3UO3STL4","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"X7ACLPZF","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:6b79893e5fc03d7c205e3504d18d1a4b545ca87326854a1c15fee40215f688f9","target":"graph","created_at":"2026-05-18T04:12:19Z","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":"We provide an overview of the organization and results of the deterministic part of the 4th International Planning Competition, i.e., of the part concerned with evaluating systems doing deterministic planning. IPC-4 attracted even more competing systems than its already large predecessors, and the competition event was revised in several important respects. After giving an introduction to the IPC, we briefly explain the main differences between the deterministic part of IPC-4 and its predecessors. We then introduce formally the language used, called PDDL2.2 that extends PDDL2.1 by derived pred","authors_text":"J. Hoffmann, S. Edelkamp","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-09-26T18:27:26Z","title":"The Deterministic Part of IPC-4: An Overview"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.5663","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:a72228b20eb9fc0b8f624a735e791894d7955b7e656e20d0e6584f6ec9585aa4","target":"record","created_at":"2026-05-18T04:12:19Z","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":"19ab1a77640ab8b87438b4304f5c3c218a00e34844744f3e82d059f63d8079d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-09-26T18:27:26Z","title_canon_sha256":"32409c1fdb890f0b848b5c72eeb3c77290da0c4c731a49d76d86533fb2a6db55"},"schema_version":"1.0","source":{"id":"1109.5663","kind":"arxiv","version":1}},"canonical_sha256":"bfc025bf25dd1db94d7c36add8b3c558d3f3068d6ee920e56d5e91d35da374eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfc025bf25dd1db94d7c36add8b3c558d3f3068d6ee920e56d5e91d35da374eb","first_computed_at":"2026-05-18T04:12:19.048858Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:19.048858Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ym64/LlZiyAnvbg3HMzKdeSc9HgBfXuimZWcFCcnTZ+GIK1tZRzgdmrZQVnFu4LwKa+jldasQmdtp0/fwQ/eAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:19.049243Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.5663","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a72228b20eb9fc0b8f624a735e791894d7955b7e656e20d0e6584f6ec9585aa4","sha256:6b79893e5fc03d7c205e3504d18d1a4b545ca87326854a1c15fee40215f688f9"],"state_sha256":"43bf6e9404496d45eefb9a89a997ee7a15d73310eeb31c4b377644fee671edcf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fJNd4hWHDIcDoEndOrdgFgahI46oMuP2dCBh989rWOCafem4wyodCKRZWCSFIxUR+j1fhYxtKwenWEc6TXXhDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T21:37:42.238724Z","bundle_sha256":"adc28eed69434b0d4586396748efe0a54339ef4bfd090a9081da9ccab0e51525"}}