{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:FEIA2JI7BO4CH255BGP77BXSL5","short_pith_number":"pith:FEIA2JI7","schema_version":"1.0","canonical_sha256":"29100d251f0bb823ebbd099fff86f25f7355150c4c4d9595643bafe7bbe81bae","source":{"kind":"arxiv","id":"1512.09150","version":2},"attestation_state":"computed","paper":{"title":"High-speed photometry of the disintegrating planetesimals at WD1145+017: evidence for rapid dynamical evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Aungwerojwit, B.T. Gaensicke, Dimitri Veras, D.I. Sahman, D. Pollacco, J. Farihi, M.R. Burleigh, P. Chote, R. Ashley, S. Arjyotha, S.P. Littlefair, S. Rattanasoon, T.R. Marsh, V.S. Dhillon","submitted_at":"2015-12-30T21:02:05Z","abstract_excerpt":"We obtained high-speed photometry of the disintegrating planetesimals orbiting the white dwarf WD1145+017, spanning a period of four weeks. The light curves show a dramatic evolution of the system since the first observations obtained about seven months ago. Multiple transit events are detected in every light curve, which have varying durations(~3-12min) and depths (~10-60%). The time-averaged extinction is ~11%, much higher than at the time of the Kepler observations. The shortest-duration transits require that the occulting cloud of debris has a few times the size of the white dwarf, longer "},"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":"1512.09150","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-12-30T21:02:05Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"1379b1a72b8cbd8209f50d4d74629b41bf4a4edc09ecbb960e60693a3ac85e24","abstract_canon_sha256":"4ade8aec324949e03e7917afb4ee2991ddbac6e03663c33373593e90870a8a43"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:40.719216Z","signature_b64":"DYSAPOUPrRli/plGh/iFfg2YpD5EawYdDpG/1RTDIW5pifygTG9NJOGSB63VTQQFYgeCufy2CCC6tdB0x2DQAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29100d251f0bb823ebbd099fff86f25f7355150c4c4d9595643bafe7bbe81bae","last_reissued_at":"2026-05-18T01:20:40.718610Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:40.718610Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High-speed photometry of the disintegrating planetesimals at WD1145+017: evidence for rapid dynamical evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Aungwerojwit, B.T. Gaensicke, Dimitri Veras, D.I. Sahman, D. Pollacco, J. Farihi, M.R. Burleigh, P. Chote, R. Ashley, S. Arjyotha, S.P. Littlefair, S. Rattanasoon, T.R. Marsh, V.S. Dhillon","submitted_at":"2015-12-30T21:02:05Z","abstract_excerpt":"We obtained high-speed photometry of the disintegrating planetesimals orbiting the white dwarf WD1145+017, spanning a period of four weeks. The light curves show a dramatic evolution of the system since the first observations obtained about seven months ago. Multiple transit events are detected in every light curve, which have varying durations(~3-12min) and depths (~10-60%). The time-averaged extinction is ~11%, much higher than at the time of the Kepler observations. The shortest-duration transits require that the occulting cloud of debris has a few times the size of the white dwarf, longer "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.09150","kind":"arxiv","version":2},"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":"1512.09150","created_at":"2026-05-18T01:20:40.718715+00:00"},{"alias_kind":"arxiv_version","alias_value":"1512.09150v2","created_at":"2026-05-18T01:20:40.718715+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.09150","created_at":"2026-05-18T01:20:40.718715+00:00"},{"alias_kind":"pith_short_12","alias_value":"FEIA2JI7BO4C","created_at":"2026-05-18T12:29:19.899920+00:00"},{"alias_kind":"pith_short_16","alias_value":"FEIA2JI7BO4CH255","created_at":"2026-05-18T12:29:19.899920+00:00"},{"alias_kind":"pith_short_8","alias_value":"FEIA2JI7","created_at":"2026-05-18T12:29:19.899920+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/FEIA2JI7BO4CH255BGP77BXSL5","json":"https://pith.science/pith/FEIA2JI7BO4CH255BGP77BXSL5.json","graph_json":"https://pith.science/api/pith-number/FEIA2JI7BO4CH255BGP77BXSL5/graph.json","events_json":"https://pith.science/api/pith-number/FEIA2JI7BO4CH255BGP77BXSL5/events.json","paper":"https://pith.science/paper/FEIA2JI7"},"agent_actions":{"view_html":"https://pith.science/pith/FEIA2JI7BO4CH255BGP77BXSL5","download_json":"https://pith.science/pith/FEIA2JI7BO4CH255BGP77BXSL5.json","view_paper":"https://pith.science/paper/FEIA2JI7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1512.09150&json=true","fetch_graph":"https://pith.science/api/pith-number/FEIA2JI7BO4CH255BGP77BXSL5/graph.json","fetch_events":"https://pith.science/api/pith-number/FEIA2JI7BO4CH255BGP77BXSL5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FEIA2JI7BO4CH255BGP77BXSL5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FEIA2JI7BO4CH255BGP77BXSL5/action/storage_attestation","attest_author":"https://pith.science/pith/FEIA2JI7BO4CH255BGP77BXSL5/action/author_attestation","sign_citation":"https://pith.science/pith/FEIA2JI7BO4CH255BGP77BXSL5/action/citation_signature","submit_replication":"https://pith.science/pith/FEIA2JI7BO4CH255BGP77BXSL5/action/replication_record"}},"created_at":"2026-05-18T01:20:40.718715+00:00","updated_at":"2026-05-18T01:20:40.718715+00:00"}