{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:CTPBPH5RH5KZWQ5ZKXRCMXIXDL","short_pith_number":"pith:CTPBPH5R","schema_version":"1.0","canonical_sha256":"14de179fb13f559b43b955e2265d171ae626bf4cb0df9f68eedcdf3dac98c741","source":{"kind":"arxiv","id":"1002.4023","version":1},"attestation_state":"computed","paper":{"title":"Chandra Observations of Comets 8P/Tuttle and 17P/Holmes during Solar Minimum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C.M. Lisse, D. Bodewits, D. J. Christian, H. Hsieh, K. Dennerl, L. Zhao, S. J. Wolk, T.H. Zurbuchen","submitted_at":"2010-02-21T22:09:43Z","abstract_excerpt":"We present results for Chandra observations of comets, 17P/Holmes (17P) and 8P/Tuttle (8P). 17P was observed for 30 ksec right after its major outburst, on 31 Oct 2007 (10:07 UT) and comet 8P/Tuttle was observed in 2008 January for 47 ksec. During the two Chandra observations, 17P was producing at least 100 times more water than 8P but was 2.2 times further away from the Sun. Also, 17P is the first comet observed at high latitude (+19.1 degrees) during solar minimum, while 8P was observed at a lower solar latitude (3.4 degrees). The X-ray spectrum of 17P is unusually soft with little significa"},"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":"1002.4023","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-02-21T22:09:43Z","cross_cats_sorted":[],"title_canon_sha256":"a07909283cf27bbf1256f405ea716258f91c89866bc05ade71c4e89a92808c60","abstract_canon_sha256":"d583d097279f2dcbe28efe3c6304f76f63e33cf16ec24d451006adb7d67ccfa7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:58.387192Z","signature_b64":"6BGsFxqqc+PBsbujgF3OdJhx3XCS2NGGH7rFvsettw+cy2L6FygBtksrAxkfli8gold+ucgE7KUkAXuUMLA9DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14de179fb13f559b43b955e2265d171ae626bf4cb0df9f68eedcdf3dac98c741","last_reissued_at":"2026-05-18T02:08:58.386403Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:58.386403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Chandra Observations of Comets 8P/Tuttle and 17P/Holmes during Solar Minimum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C.M. Lisse, D. Bodewits, D. J. Christian, H. Hsieh, K. Dennerl, L. Zhao, S. J. Wolk, T.H. Zurbuchen","submitted_at":"2010-02-21T22:09:43Z","abstract_excerpt":"We present results for Chandra observations of comets, 17P/Holmes (17P) and 8P/Tuttle (8P). 17P was observed for 30 ksec right after its major outburst, on 31 Oct 2007 (10:07 UT) and comet 8P/Tuttle was observed in 2008 January for 47 ksec. During the two Chandra observations, 17P was producing at least 100 times more water than 8P but was 2.2 times further away from the Sun. Also, 17P is the first comet observed at high latitude (+19.1 degrees) during solar minimum, while 8P was observed at a lower solar latitude (3.4 degrees). The X-ray spectrum of 17P is unusually soft with little significa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.4023","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":"1002.4023","created_at":"2026-05-18T02:08:58.386531+00:00"},{"alias_kind":"arxiv_version","alias_value":"1002.4023v1","created_at":"2026-05-18T02:08:58.386531+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.4023","created_at":"2026-05-18T02:08:58.386531+00:00"},{"alias_kind":"pith_short_12","alias_value":"CTPBPH5RH5KZ","created_at":"2026-05-18T12:26:06.534383+00:00"},{"alias_kind":"pith_short_16","alias_value":"CTPBPH5RH5KZWQ5Z","created_at":"2026-05-18T12:26:06.534383+00:00"},{"alias_kind":"pith_short_8","alias_value":"CTPBPH5R","created_at":"2026-05-18T12:26:06.534383+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/CTPBPH5RH5KZWQ5ZKXRCMXIXDL","json":"https://pith.science/pith/CTPBPH5RH5KZWQ5ZKXRCMXIXDL.json","graph_json":"https://pith.science/api/pith-number/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/graph.json","events_json":"https://pith.science/api/pith-number/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/events.json","paper":"https://pith.science/paper/CTPBPH5R"},"agent_actions":{"view_html":"https://pith.science/pith/CTPBPH5RH5KZWQ5ZKXRCMXIXDL","download_json":"https://pith.science/pith/CTPBPH5RH5KZWQ5ZKXRCMXIXDL.json","view_paper":"https://pith.science/paper/CTPBPH5R","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1002.4023&json=true","fetch_graph":"https://pith.science/api/pith-number/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/graph.json","fetch_events":"https://pith.science/api/pith-number/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/action/storage_attestation","attest_author":"https://pith.science/pith/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/action/author_attestation","sign_citation":"https://pith.science/pith/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/action/citation_signature","submit_replication":"https://pith.science/pith/CTPBPH5RH5KZWQ5ZKXRCMXIXDL/action/replication_record"}},"created_at":"2026-05-18T02:08:58.386531+00:00","updated_at":"2026-05-18T02:08:58.386531+00:00"}