{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:7RV32ZV4JHSO3XFBTZSXMKL7DM","short_pith_number":"pith:7RV32ZV4","canonical_record":{"source":{"id":"1607.00027","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-30T20:31:35Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"117ffad9e8e6bc41706981ebda8b58247bcb422fd0a59d6b7c615139339bac10","abstract_canon_sha256":"c3a01165cd7baaaecf52326c3095b7dd4365b33a5bc1a54699746a825fc8c173"},"schema_version":"1.0"},"canonical_sha256":"fc6bbd66bc49e4eddca19e6576297f1b152831b1042126736e454a9002e8c9ab","source":{"kind":"arxiv","id":"1607.00027","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.00027","created_at":"2026-05-18T00:57:27Z"},{"alias_kind":"arxiv_version","alias_value":"1607.00027v1","created_at":"2026-05-18T00:57:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.00027","created_at":"2026-05-18T00:57:27Z"},{"alias_kind":"pith_short_12","alias_value":"7RV32ZV4JHSO","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7RV32ZV4JHSO3XFB","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7RV32ZV4","created_at":"2026-05-18T12:30:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:7RV32ZV4JHSO3XFBTZSXMKL7DM","target":"record","payload":{"canonical_record":{"source":{"id":"1607.00027","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-30T20:31:35Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"117ffad9e8e6bc41706981ebda8b58247bcb422fd0a59d6b7c615139339bac10","abstract_canon_sha256":"c3a01165cd7baaaecf52326c3095b7dd4365b33a5bc1a54699746a825fc8c173"},"schema_version":"1.0"},"canonical_sha256":"fc6bbd66bc49e4eddca19e6576297f1b152831b1042126736e454a9002e8c9ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:27.117152Z","signature_b64":"08FfMOXyc+3da0bhcku+9VxZqre5P1PU2RFg23Gfs+y+d/4v1LvSOekAhHesv+shtHjB6Hp8yyVMBE5ix9VdDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc6bbd66bc49e4eddca19e6576297f1b152831b1042126736e454a9002e8c9ab","last_reissued_at":"2026-05-18T00:57:27.116502Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:27.116502Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.00027","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":"2026-05-18T00:57:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gm1IFbB9cl7BooIRA7OUTlRc58K1QwVlCUUl77wGNzoHs02vtxEHCF8i3xR7/UYaRGahKNlBJtFat/mA9C4uAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:44:46.413199Z"},"content_sha256":"0367fed44de368a16a462ad2b0e9dd7b8dd36086dcbe779df9b986e8f2f85e3f","schema_version":"1.0","event_id":"sha256:0367fed44de368a16a462ad2b0e9dd7b8dd36086dcbe779df9b986e8f2f85e3f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:7RV32ZV4JHSO3XFBTZSXMKL7DM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Open clusters and associations in the Gaia era","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"E. Moraux","submitted_at":"2016-06-30T20:31:35Z","abstract_excerpt":"Open clusters and associations are groups of young stars, respectively bound and unbound, that share the same origin and disperse over time into the galactic field. As such, their formation and evolution are the key to understand the origin and properties of galactic stellar populations. Moreover, since their members have about the same age, they are ideal laboratories to study the properties of young stars and constrain stellar evolution theories.\n  In this contribution, I present our current knowledge on open clusters and associations. I focus on the methods used to derive the statistical pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.00027","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":"2026-05-18T00:57:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+WZC93UKrEGG8SkDDJ4s6+7/yRecPDg+ZfqpN0G9x7RKtmuFXA5mKZu5U85415IvqgytU0k26UrqGyC3OO0uDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:44:46.413986Z"},"content_sha256":"9851af8e46e384ba40b72da7fcf02b644b89d69e04eab263437c038acecfbc7b","schema_version":"1.0","event_id":"sha256:9851af8e46e384ba40b72da7fcf02b644b89d69e04eab263437c038acecfbc7b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7RV32ZV4JHSO3XFBTZSXMKL7DM/bundle.json","state_url":"https://pith.science/pith/7RV32ZV4JHSO3XFBTZSXMKL7DM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7RV32ZV4JHSO3XFBTZSXMKL7DM/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":"2026-05-25T18:44:46Z","links":{"resolver":"https://pith.science/pith/7RV32ZV4JHSO3XFBTZSXMKL7DM","bundle":"https://pith.science/pith/7RV32ZV4JHSO3XFBTZSXMKL7DM/bundle.json","state":"https://pith.science/pith/7RV32ZV4JHSO3XFBTZSXMKL7DM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7RV32ZV4JHSO3XFBTZSXMKL7DM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:7RV32ZV4JHSO3XFBTZSXMKL7DM","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":"c3a01165cd7baaaecf52326c3095b7dd4365b33a5bc1a54699746a825fc8c173","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-30T20:31:35Z","title_canon_sha256":"117ffad9e8e6bc41706981ebda8b58247bcb422fd0a59d6b7c615139339bac10"},"schema_version":"1.0","source":{"id":"1607.00027","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.00027","created_at":"2026-05-18T00:57:27Z"},{"alias_kind":"arxiv_version","alias_value":"1607.00027v1","created_at":"2026-05-18T00:57:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.00027","created_at":"2026-05-18T00:57:27Z"},{"alias_kind":"pith_short_12","alias_value":"7RV32ZV4JHSO","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7RV32ZV4JHSO3XFB","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7RV32ZV4","created_at":"2026-05-18T12:30:04Z"}],"graph_snapshots":[{"event_id":"sha256:9851af8e46e384ba40b72da7fcf02b644b89d69e04eab263437c038acecfbc7b","target":"graph","created_at":"2026-05-18T00:57:27Z","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":"Open clusters and associations are groups of young stars, respectively bound and unbound, that share the same origin and disperse over time into the galactic field. As such, their formation and evolution are the key to understand the origin and properties of galactic stellar populations. Moreover, since their members have about the same age, they are ideal laboratories to study the properties of young stars and constrain stellar evolution theories.\n  In this contribution, I present our current knowledge on open clusters and associations. I focus on the methods used to derive the statistical pr","authors_text":"E. Moraux","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-30T20:31:35Z","title":"Open clusters and associations in the Gaia era"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.00027","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":"sha256:0367fed44de368a16a462ad2b0e9dd7b8dd36086dcbe779df9b986e8f2f85e3f","target":"record","created_at":"2026-05-18T00:57:27Z","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":"c3a01165cd7baaaecf52326c3095b7dd4365b33a5bc1a54699746a825fc8c173","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-30T20:31:35Z","title_canon_sha256":"117ffad9e8e6bc41706981ebda8b58247bcb422fd0a59d6b7c615139339bac10"},"schema_version":"1.0","source":{"id":"1607.00027","kind":"arxiv","version":1}},"canonical_sha256":"fc6bbd66bc49e4eddca19e6576297f1b152831b1042126736e454a9002e8c9ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fc6bbd66bc49e4eddca19e6576297f1b152831b1042126736e454a9002e8c9ab","first_computed_at":"2026-05-18T00:57:27.116502Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:27.116502Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"08FfMOXyc+3da0bhcku+9VxZqre5P1PU2RFg23Gfs+y+d/4v1LvSOekAhHesv+shtHjB6Hp8yyVMBE5ix9VdDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:27.117152Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.00027","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0367fed44de368a16a462ad2b0e9dd7b8dd36086dcbe779df9b986e8f2f85e3f","sha256:9851af8e46e384ba40b72da7fcf02b644b89d69e04eab263437c038acecfbc7b"],"state_sha256":"b00d370beb833e7254ebce41260b19a00e5f1e95fb0ee1d5fb56493a9276cd93"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Ww9zRMHMikFqyuN3J4AFmCHv7QX2iMaY+iT8VmmhyF2aiAQgVRBIT6jtiBcNp4wk/VT+7Yi1z4EMiEDTlfUCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:44:46.419785Z","bundle_sha256":"8d9ff367f1f0466338c1257d0c1eecaa22c8748f9e76e96517fc077f074e1c24"}}