{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:CPG5LL3F4XHMT3MRECSAUPVS27","short_pith_number":"pith:CPG5LL3F","canonical_record":{"source":{"id":"2010.14870","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T10:33:47Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"50e34d00e2ab1bc6a081b705df485349a2070e67dacbcf20d4dedd49291938bb","abstract_canon_sha256":"bbdd210a02046eeb5fcfdc306e0b2068c3cc63a94bf72783a4b889a3cc7dfe27"},"schema_version":"1.0"},"canonical_sha256":"13cdd5af65e5cec9ed9120a40a3eb2d7d9bd7a7a8ad914ef162b0bc1ca39c964","source":{"kind":"arxiv","id":"2010.14870","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.14870","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"arxiv_version","alias_value":"2010.14870v1","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.14870","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"pith_short_12","alias_value":"CPG5LL3F4XHM","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"pith_short_16","alias_value":"CPG5LL3F4XHMT3MR","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"pith_short_8","alias_value":"CPG5LL3F","created_at":"2026-07-05T02:44:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:CPG5LL3F4XHMT3MRECSAUPVS27","target":"record","payload":{"canonical_record":{"source":{"id":"2010.14870","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T10:33:47Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"50e34d00e2ab1bc6a081b705df485349a2070e67dacbcf20d4dedd49291938bb","abstract_canon_sha256":"bbdd210a02046eeb5fcfdc306e0b2068c3cc63a94bf72783a4b889a3cc7dfe27"},"schema_version":"1.0"},"canonical_sha256":"13cdd5af65e5cec9ed9120a40a3eb2d7d9bd7a7a8ad914ef162b0bc1ca39c964","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:44:51.369591Z","signature_b64":"dqmsPGqVi2zHhOVPDUZc9TuDvJOQxAnCWFwepCYqMksSdhiqHCCJR3WRCzSB7Lx/1wRmCgS1IXvmtOKMsOehBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13cdd5af65e5cec9ed9120a40a3eb2d7d9bd7a7a8ad914ef162b0bc1ca39c964","last_reissued_at":"2026-07-05T02:44:51.369131Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:44:51.369131Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.14870","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":"2026-07-05T02:44:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iCjuvSsA+aj4foD6Nk1oli6vnnL2ofl6tWFCOE2qhlJ9vI4uwCXZrW0v5I2m/HJtL1x2uYhFpQUhW+QM4SVOCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:09:32.600437Z"},"content_sha256":"b1c5a4a405669b4a04c019187282303983375bb532b9cb2a5fd86fae3cdfc404","schema_version":"1.0","event_id":"sha256:b1c5a4a405669b4a04c019187282303983375bb532b9cb2a5fd86fae3cdfc404"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:CPG5LL3F4XHMT3MRECSAUPVS27","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A catalogue of 74 new open clusters found in Gaia Data-Release 2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Chao-Jie Hao, Jing-Jing Li, Ye Xu, Zhen-Yu Wu, Zhi-Hong He","submitted_at":"2020-10-28T10:33:47Z","abstract_excerpt":"Based on astrometric data from Gaia DR2, we employ an unsupervised machine learning method to blindly search for open star clusters in the Milky Way within the Galactic latitude range of |b| < 20 degrees. In addition to 2,080 known clusters, 74 new open cluster candidates are found. In this work, we present the positions, apparent radii, parallaxes, proper motions and member stars of these candidates (https://cdsarc.u-strasbg.fr/ftp/vizier.submit//new_OC/). Meanwhile, to obtain the physical parameters of each candidate cluster, stellar isochrones are fit to the photometric data. The results sh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.14870","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/2010.14870/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":"2026-07-05T02:44:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QCXr5F1x3aCD5AdqhUtLm3ShPRgCVx2M3YXMLqSt0M+Q3vnNqSiwLxf6gxnBR/OwTMGpVIJlFzQfMKOp4qw5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:09:32.601265Z"},"content_sha256":"65d84cc459e69069e8e1fcd9944e7eb48b5ed044f733a79678af20fc08fb668c","schema_version":"1.0","event_id":"sha256:65d84cc459e69069e8e1fcd9944e7eb48b5ed044f733a79678af20fc08fb668c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CPG5LL3F4XHMT3MRECSAUPVS27/bundle.json","state_url":"https://pith.science/pith/CPG5LL3F4XHMT3MRECSAUPVS27/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CPG5LL3F4XHMT3MRECSAUPVS27/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":"2026-08-07T22:09:32Z","links":{"resolver":"https://pith.science/pith/CPG5LL3F4XHMT3MRECSAUPVS27","bundle":"https://pith.science/pith/CPG5LL3F4XHMT3MRECSAUPVS27/bundle.json","state":"https://pith.science/pith/CPG5LL3F4XHMT3MRECSAUPVS27/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CPG5LL3F4XHMT3MRECSAUPVS27/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:CPG5LL3F4XHMT3MRECSAUPVS27","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":"bbdd210a02046eeb5fcfdc306e0b2068c3cc63a94bf72783a4b889a3cc7dfe27","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T10:33:47Z","title_canon_sha256":"50e34d00e2ab1bc6a081b705df485349a2070e67dacbcf20d4dedd49291938bb"},"schema_version":"1.0","source":{"id":"2010.14870","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.14870","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"arxiv_version","alias_value":"2010.14870v1","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.14870","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"pith_short_12","alias_value":"CPG5LL3F4XHM","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"pith_short_16","alias_value":"CPG5LL3F4XHMT3MR","created_at":"2026-07-05T02:44:51Z"},{"alias_kind":"pith_short_8","alias_value":"CPG5LL3F","created_at":"2026-07-05T02:44:51Z"}],"graph_snapshots":[{"event_id":"sha256:65d84cc459e69069e8e1fcd9944e7eb48b5ed044f733a79678af20fc08fb668c","target":"graph","created_at":"2026-07-05T02:44:51Z","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/2010.14870/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Based on astrometric data from Gaia DR2, we employ an unsupervised machine learning method to blindly search for open star clusters in the Milky Way within the Galactic latitude range of |b| < 20 degrees. In addition to 2,080 known clusters, 74 new open cluster candidates are found. In this work, we present the positions, apparent radii, parallaxes, proper motions and member stars of these candidates (https://cdsarc.u-strasbg.fr/ftp/vizier.submit//new_OC/). Meanwhile, to obtain the physical parameters of each candidate cluster, stellar isochrones are fit to the photometric data. The results sh","authors_text":"Chao-Jie Hao, Jing-Jing Li, Ye Xu, Zhen-Yu Wu, Zhi-Hong He","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T10:33:47Z","title":"A catalogue of 74 new open clusters found in Gaia Data-Release 2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.14870","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:b1c5a4a405669b4a04c019187282303983375bb532b9cb2a5fd86fae3cdfc404","target":"record","created_at":"2026-07-05T02:44:51Z","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":"bbdd210a02046eeb5fcfdc306e0b2068c3cc63a94bf72783a4b889a3cc7dfe27","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T10:33:47Z","title_canon_sha256":"50e34d00e2ab1bc6a081b705df485349a2070e67dacbcf20d4dedd49291938bb"},"schema_version":"1.0","source":{"id":"2010.14870","kind":"arxiv","version":1}},"canonical_sha256":"13cdd5af65e5cec9ed9120a40a3eb2d7d9bd7a7a8ad914ef162b0bc1ca39c964","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"13cdd5af65e5cec9ed9120a40a3eb2d7d9bd7a7a8ad914ef162b0bc1ca39c964","first_computed_at":"2026-07-05T02:44:51.369131Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:44:51.369131Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dqmsPGqVi2zHhOVPDUZc9TuDvJOQxAnCWFwepCYqMksSdhiqHCCJR3WRCzSB7Lx/1wRmCgS1IXvmtOKMsOehBA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:44:51.369591Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.14870","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1c5a4a405669b4a04c019187282303983375bb532b9cb2a5fd86fae3cdfc404","sha256:65d84cc459e69069e8e1fcd9944e7eb48b5ed044f733a79678af20fc08fb668c"],"state_sha256":"addd38661bc0d8221f616f15f0b4b3a7051ca3f5b37ab92848cc68b8abec0ee6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JAzjDRVrZb/pvb7/AXm1jXmOykvn/YP8vkbXij4mLPe+blwGIeNphx2DNq7Iu17DBreKY4W9jX4p5Psz5d52Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T22:09:32.658723Z","bundle_sha256":"bc8c5304e1814ee75ed787d6968dc005ae1d1acbdc56815acda0a526e6d794b0"}}