{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:7T6RBDZIUKYFEVPLP54PXYTVGD","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"dde8185ce8c8554b2ed6bc668cbb8ee9b4a2ec0f4d9c1233e3825f0d8284db36","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-11-30T12:39:25Z","title_canon_sha256":"d00ec453f05c3f0dc29f767d670d63c971c8643f45941eb44a8b7d2d37f17ef6"},"schema_version":"1.0","source":{"id":"0911.5625","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.5625","created_at":"2026-05-18T02:10:35Z"},{"alias_kind":"arxiv_version","alias_value":"0911.5625v1","created_at":"2026-05-18T02:10:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.5625","created_at":"2026-05-18T02:10:35Z"},{"alias_kind":"pith_short_12","alias_value":"7T6RBDZIUKYF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7T6RBDZIUKYFEVPL","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7T6RBDZI","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:1e0d4f6db0f1cd999628de2b2290fb0c65117e1f4746acdd09c4ab682d87166d","target":"graph","created_at":"2026-05-18T02:10:35Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Comet 17P/Holmes was observed for linear polarisation using the optical polarimeter mounted on the 1.2m telescope atop Gurushikhar peak near Mt. Abu during the period November-December 2007. Observations were conducted through the IHW narrow band (continuum) filters. During the observing run the phase angle was near $13^{\\circ}$ at which the comet showed negative polarisation. On the basis of the observed polarisation data we find comet 17P/Holmes to be a typical comet with usual dust characteristics. We note that radial rate of change of brightness in coma in red band is higher than that in b","authors_text":"K. S. Baliyan, S. Ganesh, U. C. Joshi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-11-30T12:39:25Z","title":"Optical polarimetry and photometry of comet 17P/Holmes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.5625","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:89d848246c3e97d4ff0477af080b135b37dd1ca4c899f40e61ac4eb6886d6800","target":"record","created_at":"2026-05-18T02:10:35Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"dde8185ce8c8554b2ed6bc668cbb8ee9b4a2ec0f4d9c1233e3825f0d8284db36","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-11-30T12:39:25Z","title_canon_sha256":"d00ec453f05c3f0dc29f767d670d63c971c8643f45941eb44a8b7d2d37f17ef6"},"schema_version":"1.0","source":{"id":"0911.5625","kind":"arxiv","version":1}},"canonical_sha256":"fcfd108f28a2b05255eb7f78fbe27530d9ce9d26d9ba810949e55f6c16ef8534","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fcfd108f28a2b05255eb7f78fbe27530d9ce9d26d9ba810949e55f6c16ef8534","first_computed_at":"2026-05-18T02:10:35.625276Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:35.625276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+5aNqC9HupFVbU8Y2fXHAmDxHBN8RYyyKRwDewErGlvgChnyar8mXH2jZMzzRDWPZ1F40pPTjuP+ivzu0zwzBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:35.626087Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.5625","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:89d848246c3e97d4ff0477af080b135b37dd1ca4c899f40e61ac4eb6886d6800","sha256:1e0d4f6db0f1cd999628de2b2290fb0c65117e1f4746acdd09c4ab682d87166d"],"state_sha256":"da03a0b48889e44156a6bc003a280bc11c4259550ef850f5cfb6516ed43b9f73"}