{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:QME4TIVHRJ7SOV2WHZQC2AFGWU","short_pith_number":"pith:QME4TIVH","canonical_record":{"source":{"id":"2109.04863","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CG","submitted_at":"2021-09-10T13:20:40Z","cross_cats_sorted":["cs.DM","cs.DS","cs.HC","math.CO"],"title_canon_sha256":"251f84e2f2cfb4dfd37624fce3b2e0eff956bce4d93bc403933800081247b4ed","abstract_canon_sha256":"3dc00b5f0048c0a0d0eb5164e8b5a91ca2ded44005654e205161b71f6d4efdae"},"schema_version":"1.0"},"canonical_sha256":"8309c9a2a78a7f2757563e602d00a6b51d34aa25b24a3f541fc569747d5cbe00","source":{"kind":"arxiv","id":"2109.04863","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.04863","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"arxiv_version","alias_value":"2109.04863v1","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.04863","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"pith_short_12","alias_value":"QME4TIVHRJ7S","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"pith_short_16","alias_value":"QME4TIVHRJ7SOV2W","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"pith_short_8","alias_value":"QME4TIVH","created_at":"2026-07-05T03:13:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:QME4TIVHRJ7SOV2WHZQC2AFGWU","target":"record","payload":{"canonical_record":{"source":{"id":"2109.04863","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CG","submitted_at":"2021-09-10T13:20:40Z","cross_cats_sorted":["cs.DM","cs.DS","cs.HC","math.CO"],"title_canon_sha256":"251f84e2f2cfb4dfd37624fce3b2e0eff956bce4d93bc403933800081247b4ed","abstract_canon_sha256":"3dc00b5f0048c0a0d0eb5164e8b5a91ca2ded44005654e205161b71f6d4efdae"},"schema_version":"1.0"},"canonical_sha256":"8309c9a2a78a7f2757563e602d00a6b51d34aa25b24a3f541fc569747d5cbe00","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:13:10.921259Z","signature_b64":"WiWqQBY7mnvgBbRD0xzDJSYqBfLsD6FCl8opV+7zbddnshI+6CfSXDEeHlcEU8v6KP2y4ggVcpXJaCPNjvPtBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8309c9a2a78a7f2757563e602d00a6b51d34aa25b24a3f541fc569747d5cbe00","last_reissued_at":"2026-07-05T03:13:10.920869Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:13:10.920869Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.04863","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":"2026-07-05T03:13:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/UBc4KxGzjrBQs/oc5CWYZp7W32ymaZBjRQvaZA7r/5CMTQTfJYukY0ubjDvWVRahIZMHGn4CeBciRVmlMM9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T19:14:25.990539Z"},"content_sha256":"8aafd6f68b6459fb592851635cef30c95c53559b2fb168be4b25dfc22902de53","schema_version":"1.0","event_id":"sha256:8aafd6f68b6459fb592851635cef30c95c53559b2fb168be4b25dfc22902de53"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:QME4TIVHRJ7SOV2WHZQC2AFGWU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Proceedings of the 29th International Symposium on Graph Drawing and Network Visualization (GD 2021)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DM","cs.DS","cs.HC","math.CO"],"primary_cat":"cs.CG","authors_text":"Helen Purchase, Ignaz Rutter","submitted_at":"2021-09-10T13:20:40Z","abstract_excerpt":"This is the arXiv index for the electronic proceedings of GD 2021, which contains the peer-reviewed and revised accepted papers with an optional appendix. Proceedings (without appendices) are also to be published by Springer in the Lecture Notes in Computer Science series."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.04863","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/2109.04863/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":"2026-07-05T03:13:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NZBz58qavoKcA+beS1KdUfPg36y9eCrDOsCFEYMIjeJdgKpmEdwgi8xY7ICRuIU7eUu2r5ZMmAAybhM7Ts3iDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T19:14:25.990907Z"},"content_sha256":"ddf6a0d4fdfb5ec8876da4bf3a0e668e70d8362516138b5d1c919b0e860d90f5","schema_version":"1.0","event_id":"sha256:ddf6a0d4fdfb5ec8876da4bf3a0e668e70d8362516138b5d1c919b0e860d90f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QME4TIVHRJ7SOV2WHZQC2AFGWU/bundle.json","state_url":"https://pith.science/pith/QME4TIVHRJ7SOV2WHZQC2AFGWU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QME4TIVHRJ7SOV2WHZQC2AFGWU/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":"2026-08-23T19:14:25Z","links":{"resolver":"https://pith.science/pith/QME4TIVHRJ7SOV2WHZQC2AFGWU","bundle":"https://pith.science/pith/QME4TIVHRJ7SOV2WHZQC2AFGWU/bundle.json","state":"https://pith.science/pith/QME4TIVHRJ7SOV2WHZQC2AFGWU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QME4TIVHRJ7SOV2WHZQC2AFGWU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QME4TIVHRJ7SOV2WHZQC2AFGWU","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":"3dc00b5f0048c0a0d0eb5164e8b5a91ca2ded44005654e205161b71f6d4efdae","cross_cats_sorted":["cs.DM","cs.DS","cs.HC","math.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CG","submitted_at":"2021-09-10T13:20:40Z","title_canon_sha256":"251f84e2f2cfb4dfd37624fce3b2e0eff956bce4d93bc403933800081247b4ed"},"schema_version":"1.0","source":{"id":"2109.04863","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.04863","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"arxiv_version","alias_value":"2109.04863v1","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.04863","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"pith_short_12","alias_value":"QME4TIVHRJ7S","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"pith_short_16","alias_value":"QME4TIVHRJ7SOV2W","created_at":"2026-07-05T03:13:10Z"},{"alias_kind":"pith_short_8","alias_value":"QME4TIVH","created_at":"2026-07-05T03:13:10Z"}],"graph_snapshots":[{"event_id":"sha256:ddf6a0d4fdfb5ec8876da4bf3a0e668e70d8362516138b5d1c919b0e860d90f5","target":"graph","created_at":"2026-07-05T03:13:10Z","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/2109.04863/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This is the arXiv index for the electronic proceedings of GD 2021, which contains the peer-reviewed and revised accepted papers with an optional appendix. Proceedings (without appendices) are also to be published by Springer in the Lecture Notes in Computer Science series.","authors_text":"Helen Purchase, Ignaz Rutter","cross_cats":["cs.DM","cs.DS","cs.HC","math.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CG","submitted_at":"2021-09-10T13:20:40Z","title":"Proceedings of the 29th International Symposium on Graph Drawing and Network Visualization (GD 2021)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.04863","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":"sha256:8aafd6f68b6459fb592851635cef30c95c53559b2fb168be4b25dfc22902de53","target":"record","created_at":"2026-07-05T03:13:10Z","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":"3dc00b5f0048c0a0d0eb5164e8b5a91ca2ded44005654e205161b71f6d4efdae","cross_cats_sorted":["cs.DM","cs.DS","cs.HC","math.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CG","submitted_at":"2021-09-10T13:20:40Z","title_canon_sha256":"251f84e2f2cfb4dfd37624fce3b2e0eff956bce4d93bc403933800081247b4ed"},"schema_version":"1.0","source":{"id":"2109.04863","kind":"arxiv","version":1}},"canonical_sha256":"8309c9a2a78a7f2757563e602d00a6b51d34aa25b24a3f541fc569747d5cbe00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8309c9a2a78a7f2757563e602d00a6b51d34aa25b24a3f541fc569747d5cbe00","first_computed_at":"2026-07-05T03:13:10.920869Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:13:10.920869Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WiWqQBY7mnvgBbRD0xzDJSYqBfLsD6FCl8opV+7zbddnshI+6CfSXDEeHlcEU8v6KP2y4ggVcpXJaCPNjvPtBA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:13:10.921259Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.04863","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8aafd6f68b6459fb592851635cef30c95c53559b2fb168be4b25dfc22902de53","sha256:ddf6a0d4fdfb5ec8876da4bf3a0e668e70d8362516138b5d1c919b0e860d90f5"],"state_sha256":"e7173b1fe8339e83df6f4dea36f9a007e0d4a988421c1bd897e0996809933365"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bJTLb79ImQXvg0guAZgghaooEQXwVhvv9LDPPZfIF/1fPcde3agZDv88Fd5FL1KRHGowEVTfzQH+N2u5sElyDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T19:14:25.994481Z","bundle_sha256":"de0960ed6f96bc3c93005a43a939c34fd0a71f986f5f1de2482f8c9aa9ef098c"}}