{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:S5SBI432RH6ZVGMAFKPV64J2QP","short_pith_number":"pith:S5SBI432","canonical_record":{"source":{"id":"1804.05957","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-04-16T21:55:28Z","cross_cats_sorted":[],"title_canon_sha256":"a282b969784967dfcad7196e939b88bda903ef69b24d325627e7b0478ee5dce6","abstract_canon_sha256":"017c98ea1cb2026f937017ace401cbe1d15826d9da5251db2d51fbffd9ec949f"},"schema_version":"1.0"},"canonical_sha256":"976414737a89fd9a99802a9f5f713a83dc841f9a55815f9a16075a27adbe6db5","source":{"kind":"arxiv","id":"1804.05957","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05957","created_at":"2026-05-18T00:18:22Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05957v1","created_at":"2026-05-18T00:18:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05957","created_at":"2026-05-18T00:18:22Z"},{"alias_kind":"pith_short_12","alias_value":"S5SBI432RH6Z","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"S5SBI432RH6ZVGMA","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"S5SBI432","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:S5SBI432RH6ZVGMAFKPV64J2QP","target":"record","payload":{"canonical_record":{"source":{"id":"1804.05957","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-04-16T21:55:28Z","cross_cats_sorted":[],"title_canon_sha256":"a282b969784967dfcad7196e939b88bda903ef69b24d325627e7b0478ee5dce6","abstract_canon_sha256":"017c98ea1cb2026f937017ace401cbe1d15826d9da5251db2d51fbffd9ec949f"},"schema_version":"1.0"},"canonical_sha256":"976414737a89fd9a99802a9f5f713a83dc841f9a55815f9a16075a27adbe6db5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:18:22.239417Z","signature_b64":"AH75xTZ8oKE2nsTiIFM7WYXginjdv1MrnbNlzOxYbdGd13bLRAeD/L3kC9VBYPxtcxJ4JxZS0Omr8HPQKkj7Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"976414737a89fd9a99802a9f5f713a83dc841f9a55815f9a16075a27adbe6db5","last_reissued_at":"2026-05-18T00:18:22.238722Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:18:22.238722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.05957","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":"2026-05-18T00:18:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pHIGEkwc7VI7klKxmCB4WOLZ89o88EriW9RpZ71/H/103GaLeB/UdYaI13CU4AN+r2guBL33YRjOOtdNoPIiDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:29:25.461728Z"},"content_sha256":"ddb6194ca449bff8a76ef880c12db878f6ebbbd41eef9453ecacbf35b1552aff","schema_version":"1.0","event_id":"sha256:ddb6194ca449bff8a76ef880c12db878f6ebbbd41eef9453ecacbf35b1552aff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:S5SBI432RH6ZVGMAFKPV64J2QP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PMC text mining subset in BioC: 2.3 million full text articles and growing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DL","authors_text":"Chih-Hsuan Wei, Donald C. Comeau, Rezarta Islamaj Do\\u{g}an, Zhiyong Lu","submitted_at":"2018-04-16T21:55:28Z","abstract_excerpt":"Interest in full text mining biomedical research articles is growing. NCBI provides the PMC Open Access and Author Manuscript sets of articles which are available for text mining. We have made all of these articles available in BioC, an XML and JSON format which is convenient for sharing text, annotations, and relations. These articles are available both via ftp for bulk download and via a Web API for updates or more focused collection. Availability: https://www.ncbi.nlm.nih.gov/research/bionlp/APIs/BioC-PMC/"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05957","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":"2026-05-18T00:18:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k9WM3k+H2dSpPg6Er9fVguAgHC+WkkU914yn7BPbPYCXF9yNl2zDi/JijGzkVkWsk+dUqbPpqcaQs3LEJ/HJDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:29:25.462074Z"},"content_sha256":"f3539f65eff09357b78a41ac0eff23e74c1f26f85c702f177e3412c11f2950fc","schema_version":"1.0","event_id":"sha256:f3539f65eff09357b78a41ac0eff23e74c1f26f85c702f177e3412c11f2950fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S5SBI432RH6ZVGMAFKPV64J2QP/bundle.json","state_url":"https://pith.science/pith/S5SBI432RH6ZVGMAFKPV64J2QP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S5SBI432RH6ZVGMAFKPV64J2QP/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":"2026-06-01T04:29:25Z","links":{"resolver":"https://pith.science/pith/S5SBI432RH6ZVGMAFKPV64J2QP","bundle":"https://pith.science/pith/S5SBI432RH6ZVGMAFKPV64J2QP/bundle.json","state":"https://pith.science/pith/S5SBI432RH6ZVGMAFKPV64J2QP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S5SBI432RH6ZVGMAFKPV64J2QP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:S5SBI432RH6ZVGMAFKPV64J2QP","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":"017c98ea1cb2026f937017ace401cbe1d15826d9da5251db2d51fbffd9ec949f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-04-16T21:55:28Z","title_canon_sha256":"a282b969784967dfcad7196e939b88bda903ef69b24d325627e7b0478ee5dce6"},"schema_version":"1.0","source":{"id":"1804.05957","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05957","created_at":"2026-05-18T00:18:22Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05957v1","created_at":"2026-05-18T00:18:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05957","created_at":"2026-05-18T00:18:22Z"},{"alias_kind":"pith_short_12","alias_value":"S5SBI432RH6Z","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"S5SBI432RH6ZVGMA","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"S5SBI432","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:f3539f65eff09357b78a41ac0eff23e74c1f26f85c702f177e3412c11f2950fc","target":"graph","created_at":"2026-05-18T00:18:22Z","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":"Interest in full text mining biomedical research articles is growing. NCBI provides the PMC Open Access and Author Manuscript sets of articles which are available for text mining. We have made all of these articles available in BioC, an XML and JSON format which is convenient for sharing text, annotations, and relations. These articles are available both via ftp for bulk download and via a Web API for updates or more focused collection. Availability: https://www.ncbi.nlm.nih.gov/research/bionlp/APIs/BioC-PMC/","authors_text":"Chih-Hsuan Wei, Donald C. Comeau, Rezarta Islamaj Do\\u{g}an, Zhiyong Lu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-04-16T21:55:28Z","title":"PMC text mining subset in BioC: 2.3 million full text articles and growing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05957","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:ddb6194ca449bff8a76ef880c12db878f6ebbbd41eef9453ecacbf35b1552aff","target":"record","created_at":"2026-05-18T00:18:22Z","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":"017c98ea1cb2026f937017ace401cbe1d15826d9da5251db2d51fbffd9ec949f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-04-16T21:55:28Z","title_canon_sha256":"a282b969784967dfcad7196e939b88bda903ef69b24d325627e7b0478ee5dce6"},"schema_version":"1.0","source":{"id":"1804.05957","kind":"arxiv","version":1}},"canonical_sha256":"976414737a89fd9a99802a9f5f713a83dc841f9a55815f9a16075a27adbe6db5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"976414737a89fd9a99802a9f5f713a83dc841f9a55815f9a16075a27adbe6db5","first_computed_at":"2026-05-18T00:18:22.238722Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:22.238722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AH75xTZ8oKE2nsTiIFM7WYXginjdv1MrnbNlzOxYbdGd13bLRAeD/L3kC9VBYPxtcxJ4JxZS0Omr8HPQKkj7Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:22.239417Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.05957","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ddb6194ca449bff8a76ef880c12db878f6ebbbd41eef9453ecacbf35b1552aff","sha256:f3539f65eff09357b78a41ac0eff23e74c1f26f85c702f177e3412c11f2950fc"],"state_sha256":"43e6d2a2674e90e07f0cbb9d0e6c66e7a878772b4c6c22aaf95b944fc8a666de"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pEGRPMntZMuekKVsCRaBMAb+V12cI2qvw/HyWqb2LAwbxxsBxS/wGQ+ti2pgJzPlWDdHzl+/bMineJeRDlUgBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T04:29:25.464105Z","bundle_sha256":"ed3b114444d93d3c367dfbb3f31e0086353ba5f832e10d2578c6778cd3eec7cc"}}