{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:MYWIRI2MJORBUSJGSBDI77MVYN","short_pith_number":"pith:MYWIRI2M","schema_version":"1.0","canonical_sha256":"662c88a34c4ba21a492690468ffd95c350a75af8bf865f7ba8f53ec6267ef496","source":{"kind":"arxiv","id":"1612.00834","version":1},"attestation_state":"computed","paper":{"title":"Gaia Shows That Messier 40 is Definitely Not a Binary Star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Brady Haran, Meghan E. Gray, Michael R. Merrifield","submitted_at":"2016-12-02T20:51:53Z","abstract_excerpt":"M40 has always been something of an oddity in the Messier Catalogue, since it is just a pair of stars rather than an extended object. Doubts have also been expressed as to whether it is even a physical binary. Here, we note that the Hipparcos/Gaia parallaxes for these two stars remove all doubt: Messier 40 comprises a pair of entirely unrelated stars."},"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":"1612.00834","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-02T20:51:53Z","cross_cats_sorted":[],"title_canon_sha256":"303887e14220f759abf3a972caf346421b2b1e30c44af562813e55836ce5a95d","abstract_canon_sha256":"70d4f1ebbc6a453ef461b87fa54cc45e58270ef5dc128d572695d2960a3a50d3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:58.948628Z","signature_b64":"SLC67UEmOW0YqdqGgh7ZtI48cs9LK27gEC2xs/dOvUkHTRWsSMP4N8T1UH3bvDXFVEk7pPqcfYmrKf0gXae4BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"662c88a34c4ba21a492690468ffd95c350a75af8bf865f7ba8f53ec6267ef496","last_reissued_at":"2026-05-18T00:55:58.947964Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:58.947964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gaia Shows That Messier 40 is Definitely Not a Binary Star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Brady Haran, Meghan E. Gray, Michael R. Merrifield","submitted_at":"2016-12-02T20:51:53Z","abstract_excerpt":"M40 has always been something of an oddity in the Messier Catalogue, since it is just a pair of stars rather than an extended object. Doubts have also been expressed as to whether it is even a physical binary. Here, we note that the Hipparcos/Gaia parallaxes for these two stars remove all doubt: Messier 40 comprises a pair of entirely unrelated stars."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.00834","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":"1612.00834","created_at":"2026-05-18T00:55:58.948072+00:00"},{"alias_kind":"arxiv_version","alias_value":"1612.00834v1","created_at":"2026-05-18T00:55:58.948072+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.00834","created_at":"2026-05-18T00:55:58.948072+00:00"},{"alias_kind":"pith_short_12","alias_value":"MYWIRI2MJORB","created_at":"2026-05-18T12:30:32.724797+00:00"},{"alias_kind":"pith_short_16","alias_value":"MYWIRI2MJORBUSJG","created_at":"2026-05-18T12:30:32.724797+00:00"},{"alias_kind":"pith_short_8","alias_value":"MYWIRI2M","created_at":"2026-05-18T12:30:32.724797+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/MYWIRI2MJORBUSJGSBDI77MVYN","json":"https://pith.science/pith/MYWIRI2MJORBUSJGSBDI77MVYN.json","graph_json":"https://pith.science/api/pith-number/MYWIRI2MJORBUSJGSBDI77MVYN/graph.json","events_json":"https://pith.science/api/pith-number/MYWIRI2MJORBUSJGSBDI77MVYN/events.json","paper":"https://pith.science/paper/MYWIRI2M"},"agent_actions":{"view_html":"https://pith.science/pith/MYWIRI2MJORBUSJGSBDI77MVYN","download_json":"https://pith.science/pith/MYWIRI2MJORBUSJGSBDI77MVYN.json","view_paper":"https://pith.science/paper/MYWIRI2M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1612.00834&json=true","fetch_graph":"https://pith.science/api/pith-number/MYWIRI2MJORBUSJGSBDI77MVYN/graph.json","fetch_events":"https://pith.science/api/pith-number/MYWIRI2MJORBUSJGSBDI77MVYN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MYWIRI2MJORBUSJGSBDI77MVYN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MYWIRI2MJORBUSJGSBDI77MVYN/action/storage_attestation","attest_author":"https://pith.science/pith/MYWIRI2MJORBUSJGSBDI77MVYN/action/author_attestation","sign_citation":"https://pith.science/pith/MYWIRI2MJORBUSJGSBDI77MVYN/action/citation_signature","submit_replication":"https://pith.science/pith/MYWIRI2MJORBUSJGSBDI77MVYN/action/replication_record"}},"created_at":"2026-05-18T00:55:58.948072+00:00","updated_at":"2026-05-18T00:55:58.948072+00:00"}