{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:UXJDTAWGYCJGVZ6DRMXWYEEDA5","short_pith_number":"pith:UXJDTAWG","schema_version":"1.0","canonical_sha256":"a5d23982c6c0926ae7c38b2f6c1083077b7d328c6cbefdd545ace6d166449118","source":{"kind":"arxiv","id":"2111.14886","version":3},"attestation_state":"computed","paper":{"title":"Origin of the spectacular tidal shells of galaxy NGC474","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Benoit Famaey, Ivana Ebrov\\'a, J\\'er\\'emy Fensch, Michal B\\'ilek, Pavel Kroupa, Pierre-Alain Duc, Srikanth T. Nagesh","submitted_at":"2021-11-29T19:00:44Z","abstract_excerpt":"The lenticular galaxy NGC474 hosts a rich system of tidal shells and streams, some of which are exceptionally bright. Two teams recently presented spectroscopic observations of the brightest shells. These were the first shell spectra ever observed in integrated starlight. The authors studied the stellar populations of the shell, of the center of the galaxy and of its globular clusters. The precise formation scenario for the tidal features of this prominent galaxy however still remained unclear.\n  Here, we add further clues on their formation from the radii of the shells, and we present a scena"},"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":"2111.14886","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-11-29T19:00:44Z","cross_cats_sorted":[],"title_canon_sha256":"f3aafdaa4cace15a8f246b9ece84447e22403edea24a24e72557d72d7c25c475","abstract_canon_sha256":"d30d23b717468f70a65d73ae66f5c413d627a0ead1dd8201fe73cc8d3d07f03d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:15:51.185257Z","signature_b64":"MOmbMPBZOaskiJzA11xzBach+5SMUI7nKSO/pWBCKQpwNZq1GgUDop3k7mkI5VRaj01XRg6ZkRuiFZxzKQaoCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5d23982c6c0926ae7c38b2f6c1083077b7d328c6cbefdd545ace6d166449118","last_reissued_at":"2026-07-05T04:15:51.184754Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:15:51.184754Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Origin of the spectacular tidal shells of galaxy NGC474","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Benoit Famaey, Ivana Ebrov\\'a, J\\'er\\'emy Fensch, Michal B\\'ilek, Pavel Kroupa, Pierre-Alain Duc, Srikanth T. Nagesh","submitted_at":"2021-11-29T19:00:44Z","abstract_excerpt":"The lenticular galaxy NGC474 hosts a rich system of tidal shells and streams, some of which are exceptionally bright. Two teams recently presented spectroscopic observations of the brightest shells. These were the first shell spectra ever observed in integrated starlight. The authors studied the stellar populations of the shell, of the center of the galaxy and of its globular clusters. The precise formation scenario for the tidal features of this prominent galaxy however still remained unclear.\n  Here, we add further clues on their formation from the radii of the shells, and we present a scena"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.14886","kind":"arxiv","version":3},"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/2111.14886/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2111.14886","created_at":"2026-07-05T04:15:51.184818+00:00"},{"alias_kind":"arxiv_version","alias_value":"2111.14886v3","created_at":"2026-07-05T04:15:51.184818+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.14886","created_at":"2026-07-05T04:15:51.184818+00:00"},{"alias_kind":"pith_short_12","alias_value":"UXJDTAWGYCJG","created_at":"2026-07-05T04:15:51.184818+00:00"},{"alias_kind":"pith_short_16","alias_value":"UXJDTAWGYCJGVZ6D","created_at":"2026-07-05T04:15:51.184818+00:00"},{"alias_kind":"pith_short_8","alias_value":"UXJDTAWG","created_at":"2026-07-05T04:15:51.184818+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/UXJDTAWGYCJGVZ6DRMXWYEEDA5","json":"https://pith.science/pith/UXJDTAWGYCJGVZ6DRMXWYEEDA5.json","graph_json":"https://pith.science/api/pith-number/UXJDTAWGYCJGVZ6DRMXWYEEDA5/graph.json","events_json":"https://pith.science/api/pith-number/UXJDTAWGYCJGVZ6DRMXWYEEDA5/events.json","paper":"https://pith.science/paper/UXJDTAWG"},"agent_actions":{"view_html":"https://pith.science/pith/UXJDTAWGYCJGVZ6DRMXWYEEDA5","download_json":"https://pith.science/pith/UXJDTAWGYCJGVZ6DRMXWYEEDA5.json","view_paper":"https://pith.science/paper/UXJDTAWG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2111.14886&json=true","fetch_graph":"https://pith.science/api/pith-number/UXJDTAWGYCJGVZ6DRMXWYEEDA5/graph.json","fetch_events":"https://pith.science/api/pith-number/UXJDTAWGYCJGVZ6DRMXWYEEDA5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UXJDTAWGYCJGVZ6DRMXWYEEDA5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UXJDTAWGYCJGVZ6DRMXWYEEDA5/action/storage_attestation","attest_author":"https://pith.science/pith/UXJDTAWGYCJGVZ6DRMXWYEEDA5/action/author_attestation","sign_citation":"https://pith.science/pith/UXJDTAWGYCJGVZ6DRMXWYEEDA5/action/citation_signature","submit_replication":"https://pith.science/pith/UXJDTAWGYCJGVZ6DRMXWYEEDA5/action/replication_record"}},"created_at":"2026-07-05T04:15:51.184818+00:00","updated_at":"2026-07-05T04:15:51.184818+00:00"}