{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:2TIP5ECGX3BJL63ZYVV5I7CWAX","short_pith_number":"pith:2TIP5ECG","schema_version":"1.0","canonical_sha256":"d4d0fe9046bec295fb79c56bd47c5605ceeabac63349a52bdadc48d91162bec5","source":{"kind":"arxiv","id":"1508.05955","version":1},"attestation_state":"computed","paper":{"title":"A self-consistent, absolute isochronal age scale for young moving groups in the solar neighbourhood","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"(2) University of Exeter), Cameron P. M. Bell (1), Eric E. Mamajek (1), Tim Naylor (2) ((1) University of Rochester","submitted_at":"2015-08-24T20:15:56Z","abstract_excerpt":"We present a self-consistent, absolute isochronal age scale for young (< 200 Myr), nearby (< 100 pc) moving groups in the solar neighbourhood based on homogeneous fitting of semi-empirical pre-main-sequence model isochrones using the tau^2 maximum-likelihood fitting statistic of Naylor & Jeffries in the M_V, V-J colour-magnitude diagram. The final adopted ages for the groups are: 149+51-19 Myr for the AB Dor moving group, 24+/-3 Myr for the {\\beta} Pic moving group (BPMG), 45+11-7 Myr for the Carina association, 42+6-4 Myr for the Columba association, 11+/-3 Myr for the {\\eta} Cha cluster, 45+"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1508.05955","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-08-24T20:15:56Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"deb10a17603fdf715aa0bde7b9a7cb32802ff9d5ee4b60403e86f9cf0e0e2ff3","abstract_canon_sha256":"ff576530e93a870511b61e1754d21e07da63c5e0bb7806595ffd8de44097e82a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:31.216246Z","signature_b64":"JS+BXpOluq9aPW/3MlO2EiizoS9ExuYqSNAd3A2DIAFJBbVloYHulQ37ryDnEzdmKWUIe5X/B7O4lnK/D99mAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4d0fe9046bec295fb79c56bd47c5605ceeabac63349a52bdadc48d91162bec5","last_reissued_at":"2026-05-18T01:31:31.215456Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:31.215456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A self-consistent, absolute isochronal age scale for young moving groups in the solar neighbourhood","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"(2) University of Exeter), Cameron P. M. Bell (1), Eric E. Mamajek (1), Tim Naylor (2) ((1) University of Rochester","submitted_at":"2015-08-24T20:15:56Z","abstract_excerpt":"We present a self-consistent, absolute isochronal age scale for young (< 200 Myr), nearby (< 100 pc) moving groups in the solar neighbourhood based on homogeneous fitting of semi-empirical pre-main-sequence model isochrones using the tau^2 maximum-likelihood fitting statistic of Naylor & Jeffries in the M_V, V-J colour-magnitude diagram. The final adopted ages for the groups are: 149+51-19 Myr for the AB Dor moving group, 24+/-3 Myr for the {\\beta} Pic moving group (BPMG), 45+11-7 Myr for the Carina association, 42+6-4 Myr for the Columba association, 11+/-3 Myr for the {\\eta} Cha cluster, 45+"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.05955","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1508.05955","created_at":"2026-05-18T01:31:31.215559+00:00"},{"alias_kind":"arxiv_version","alias_value":"1508.05955v1","created_at":"2026-05-18T01:31:31.215559+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.05955","created_at":"2026-05-18T01:31:31.215559+00:00"},{"alias_kind":"pith_short_12","alias_value":"2TIP5ECGX3BJ","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"2TIP5ECGX3BJL63Z","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"2TIP5ECG","created_at":"2026-05-18T12:29:02.477457+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX","json":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX.json","graph_json":"https://pith.science/api/pith-number/2TIP5ECGX3BJL63ZYVV5I7CWAX/graph.json","events_json":"https://pith.science/api/pith-number/2TIP5ECGX3BJL63ZYVV5I7CWAX/events.json","paper":"https://pith.science/paper/2TIP5ECG"},"agent_actions":{"view_html":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX","download_json":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX.json","view_paper":"https://pith.science/paper/2TIP5ECG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1508.05955&json=true","fetch_graph":"https://pith.science/api/pith-number/2TIP5ECGX3BJL63ZYVV5I7CWAX/graph.json","fetch_events":"https://pith.science/api/pith-number/2TIP5ECGX3BJL63ZYVV5I7CWAX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX/action/storage_attestation","attest_author":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX/action/author_attestation","sign_citation":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX/action/citation_signature","submit_replication":"https://pith.science/pith/2TIP5ECGX3BJL63ZYVV5I7CWAX/action/replication_record"}},"created_at":"2026-05-18T01:31:31.215559+00:00","updated_at":"2026-05-18T01:31:31.215559+00:00"}