{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:C24DV6GC3WZATC2BZALFJWEVZ7","short_pith_number":"pith:C24DV6GC","canonical_record":{"source":{"id":"2209.05503","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-12T18:00:04Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"70eedf59f8b3131c2f4d83538ec45f4dcfda913642f9c044fde55ee9801cbca2","abstract_canon_sha256":"bd0de37caebff5c6ef73a654d8b5f3d39a8a8bbbbc989325ce69c2081a33e59d"},"schema_version":"1.0"},"canonical_sha256":"16b83af8c2ddb2098b41c81654d895cfc05adf927ab9dd9dbb3dd3530b56c81e","source":{"kind":"arxiv","id":"2209.05503","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.05503","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"2209.05503v1","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.05503","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"C24DV6GC3WZA","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"pith_short_16","alias_value":"C24DV6GC3WZATC2B","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"pith_short_8","alias_value":"C24DV6GC","created_at":"2026-07-05T04:59:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:C24DV6GC3WZATC2BZALFJWEVZ7","target":"record","payload":{"canonical_record":{"source":{"id":"2209.05503","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-12T18:00:04Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"70eedf59f8b3131c2f4d83538ec45f4dcfda913642f9c044fde55ee9801cbca2","abstract_canon_sha256":"bd0de37caebff5c6ef73a654d8b5f3d39a8a8bbbbc989325ce69c2081a33e59d"},"schema_version":"1.0"},"canonical_sha256":"16b83af8c2ddb2098b41c81654d895cfc05adf927ab9dd9dbb3dd3530b56c81e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:59:32.995610Z","signature_b64":"RTJrtLgp2knsBgxfYULsjMwL8LUHz8W26m/OhO3ogX9XbVhW3mId1u41jaypsufSFmOvUxV3vmRwmu6CDufrAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"16b83af8c2ddb2098b41c81654d895cfc05adf927ab9dd9dbb3dd3530b56c81e","last_reissued_at":"2026-07-05T04:59:32.995243Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:59:32.995243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.05503","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":"2026-07-05T04:59:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FwDbQbZxHKJVGpzBhzwfAK/vLIhTkZIY0sfR8SbNeDViHxQqGrOihOdPEbWtiDHQg+kVVvKeuTRgdntg8gXdDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T02:09:56.390534Z"},"content_sha256":"1f7df4a00e090acf886b1ff1a47cf0054ce407e39644328107373c3cb4bb815a","schema_version":"1.0","event_id":"sha256:1f7df4a00e090acf886b1ff1a47cf0054ce407e39644328107373c3cb4bb815a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:C24DV6GC3WZATC2BZALFJWEVZ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The family pictures of our neighbours: investigating the mass function and dynamical parameters of nearby open clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"(2) INAF Osservatorio Astrofisica e Scienza dello Spazio, A. Sollima (2), Bologna, H. Ebrahimi (1), H. Haghi (1) ((1) Institute for Advanced Studies in Basic Sciences (IASBS), Iran, Italy), Zanjan","submitted_at":"2022-09-12T18:00:04Z","abstract_excerpt":"We determine the mass functions (MFs) and the dynamical parameters of 15 nearby open clusters (OCs) using the unprecedented data set of the Gaia Early Data Release 3. We select the members of each cluster by combining the photometric (colour and magnitude) and astrometric (parallax and proper motions) parameters of stars, minimizing the contamination from Galactic field interlopers. By comparing the observed distribution of stars along the cluster main sequence with the best-fitting synthetic population, we find the present-day MF and the binary fraction of the OCs, along with their dynamical "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.05503","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/2209.05503/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":"2026-07-05T04:59:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dsM4VZTuPBPIlqhUteyB6zOn43mcyTaL1ZSUM5oGkRV6JqfRSckWyS8w0Hj1Cb/OCEPiuqqk5RXuT98fZDLFDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T02:09:56.390899Z"},"content_sha256":"3f7801d1b40fc3fbc299deecaef05cd5a1d89e5d5fa1470705780f3b9d1f3208","schema_version":"1.0","event_id":"sha256:3f7801d1b40fc3fbc299deecaef05cd5a1d89e5d5fa1470705780f3b9d1f3208"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C24DV6GC3WZATC2BZALFJWEVZ7/bundle.json","state_url":"https://pith.science/pith/C24DV6GC3WZATC2BZALFJWEVZ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C24DV6GC3WZATC2BZALFJWEVZ7/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":"2026-07-17T02:09:56Z","links":{"resolver":"https://pith.science/pith/C24DV6GC3WZATC2BZALFJWEVZ7","bundle":"https://pith.science/pith/C24DV6GC3WZATC2BZALFJWEVZ7/bundle.json","state":"https://pith.science/pith/C24DV6GC3WZATC2BZALFJWEVZ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C24DV6GC3WZATC2BZALFJWEVZ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:C24DV6GC3WZATC2BZALFJWEVZ7","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":"bd0de37caebff5c6ef73a654d8b5f3d39a8a8bbbbc989325ce69c2081a33e59d","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-12T18:00:04Z","title_canon_sha256":"70eedf59f8b3131c2f4d83538ec45f4dcfda913642f9c044fde55ee9801cbca2"},"schema_version":"1.0","source":{"id":"2209.05503","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.05503","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"2209.05503v1","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.05503","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"C24DV6GC3WZA","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"pith_short_16","alias_value":"C24DV6GC3WZATC2B","created_at":"2026-07-05T04:59:32Z"},{"alias_kind":"pith_short_8","alias_value":"C24DV6GC","created_at":"2026-07-05T04:59:32Z"}],"graph_snapshots":[{"event_id":"sha256:3f7801d1b40fc3fbc299deecaef05cd5a1d89e5d5fa1470705780f3b9d1f3208","target":"graph","created_at":"2026-07-05T04:59:32Z","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/2209.05503/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We determine the mass functions (MFs) and the dynamical parameters of 15 nearby open clusters (OCs) using the unprecedented data set of the Gaia Early Data Release 3. We select the members of each cluster by combining the photometric (colour and magnitude) and astrometric (parallax and proper motions) parameters of stars, minimizing the contamination from Galactic field interlopers. By comparing the observed distribution of stars along the cluster main sequence with the best-fitting synthetic population, we find the present-day MF and the binary fraction of the OCs, along with their dynamical ","authors_text":"(2) INAF Osservatorio Astrofisica e Scienza dello Spazio, A. Sollima (2), Bologna, H. Ebrahimi (1), H. Haghi (1) ((1) Institute for Advanced Studies in Basic Sciences (IASBS), Iran, Italy), Zanjan","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-12T18:00:04Z","title":"The family pictures of our neighbours: investigating the mass function and dynamical parameters of nearby open clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.05503","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":"sha256:1f7df4a00e090acf886b1ff1a47cf0054ce407e39644328107373c3cb4bb815a","target":"record","created_at":"2026-07-05T04:59:32Z","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":"bd0de37caebff5c6ef73a654d8b5f3d39a8a8bbbbc989325ce69c2081a33e59d","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-12T18:00:04Z","title_canon_sha256":"70eedf59f8b3131c2f4d83538ec45f4dcfda913642f9c044fde55ee9801cbca2"},"schema_version":"1.0","source":{"id":"2209.05503","kind":"arxiv","version":1}},"canonical_sha256":"16b83af8c2ddb2098b41c81654d895cfc05adf927ab9dd9dbb3dd3530b56c81e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16b83af8c2ddb2098b41c81654d895cfc05adf927ab9dd9dbb3dd3530b56c81e","first_computed_at":"2026-07-05T04:59:32.995243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:59:32.995243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RTJrtLgp2knsBgxfYULsjMwL8LUHz8W26m/OhO3ogX9XbVhW3mId1u41jaypsufSFmOvUxV3vmRwmu6CDufrAw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:59:32.995610Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.05503","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f7df4a00e090acf886b1ff1a47cf0054ce407e39644328107373c3cb4bb815a","sha256:3f7801d1b40fc3fbc299deecaef05cd5a1d89e5d5fa1470705780f3b9d1f3208"],"state_sha256":"c828bdaf44ba8e264454956220dbe581c73145f1ece762717070fe7d9e6d7503"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IBCySdJP6ker8AIzr3FpPHGl6Uq2Q7IKpGoK6ipnfFHcWv9Cw5ZsPp+Uo8V2QR4HYoByKSHzOShxJlxIy1ZYAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-17T02:09:56.392908Z","bundle_sha256":"a6b69372c9a553f704bd09fd11a2640d507589ba488d75f565094f6780cd279d"}}