{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:NYNOD6WNM4B6IQGVNMYVQW2F47","short_pith_number":"pith:NYNOD6WN","schema_version":"1.0","canonical_sha256":"6e1ae1facd6703e440d56b31585b45e7eed37efb89acba6dc4b35c12375fa482","source":{"kind":"arxiv","id":"1609.04452","version":1},"attestation_state":"computed","paper":{"title":"Fragmentation Kinematics in Comet 332P/Ikeya-Murakami","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"David Jewitt, Harold Weaver, Jan Kleyna, Jessica Agarwal, Jing Li, Karen Meech, Man-To Hui, Marco Micheli, Masateru Ishiguro, Max Mutchler, Richard Wainscoat, Robert Weryk","submitted_at":"2016-09-14T21:40:54Z","abstract_excerpt":"We present initial time-resolved observations of the split comet 332P/Ikeya-Murakami taken using the Hubble Space Telescope. Our images reveal a dust-bathed cluster of fragments receding from their parent nucleus at projected speeds in the range 0.06 to 3.5 m s$^{-1}$ from which we estimate ejection times from October to December 2015. The number of fragments with effective radii $\\gtrsim$20 m follows a differential power law with index $\\gamma$ = -3.6$\\pm$0.6, while smaller fragments are less abundant than expected from an extrapolation of this power-law. We argue that, in addition to losses "},"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":"1609.04452","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-09-14T21:40:54Z","cross_cats_sorted":[],"title_canon_sha256":"505fd553e315763492adfff124545403351fa0e938ba5b4fecc581ad37fe1382","abstract_canon_sha256":"4295753a4ec44a808bb6006225565946e8f281513b051dc00e138d3bcce59c44"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:17.191402Z","signature_b64":"SINOlv+Kd5wzeYILNIBYQXxNAzQ0JLtJbCbtK1h4bTynCgJaZ893yI05SSZva1NZ5uIU3QcJdIyaTJxtclXIBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e1ae1facd6703e440d56b31585b45e7eed37efb89acba6dc4b35c12375fa482","last_reissued_at":"2026-05-18T01:04:17.191051Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:17.191051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fragmentation Kinematics in Comet 332P/Ikeya-Murakami","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"David Jewitt, Harold Weaver, Jan Kleyna, Jessica Agarwal, Jing Li, Karen Meech, Man-To Hui, Marco Micheli, Masateru Ishiguro, Max Mutchler, Richard Wainscoat, Robert Weryk","submitted_at":"2016-09-14T21:40:54Z","abstract_excerpt":"We present initial time-resolved observations of the split comet 332P/Ikeya-Murakami taken using the Hubble Space Telescope. Our images reveal a dust-bathed cluster of fragments receding from their parent nucleus at projected speeds in the range 0.06 to 3.5 m s$^{-1}$ from which we estimate ejection times from October to December 2015. The number of fragments with effective radii $\\gtrsim$20 m follows a differential power law with index $\\gamma$ = -3.6$\\pm$0.6, while smaller fragments are less abundant than expected from an extrapolation of this power-law. We argue that, in addition to losses "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.04452","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":"1609.04452","created_at":"2026-05-18T01:04:17.191103+00:00"},{"alias_kind":"arxiv_version","alias_value":"1609.04452v1","created_at":"2026-05-18T01:04:17.191103+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.04452","created_at":"2026-05-18T01:04:17.191103+00:00"},{"alias_kind":"pith_short_12","alias_value":"NYNOD6WNM4B6","created_at":"2026-05-18T12:30:36.002864+00:00"},{"alias_kind":"pith_short_16","alias_value":"NYNOD6WNM4B6IQGV","created_at":"2026-05-18T12:30:36.002864+00:00"},{"alias_kind":"pith_short_8","alias_value":"NYNOD6WN","created_at":"2026-05-18T12:30:36.002864+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/NYNOD6WNM4B6IQGVNMYVQW2F47","json":"https://pith.science/pith/NYNOD6WNM4B6IQGVNMYVQW2F47.json","graph_json":"https://pith.science/api/pith-number/NYNOD6WNM4B6IQGVNMYVQW2F47/graph.json","events_json":"https://pith.science/api/pith-number/NYNOD6WNM4B6IQGVNMYVQW2F47/events.json","paper":"https://pith.science/paper/NYNOD6WN"},"agent_actions":{"view_html":"https://pith.science/pith/NYNOD6WNM4B6IQGVNMYVQW2F47","download_json":"https://pith.science/pith/NYNOD6WNM4B6IQGVNMYVQW2F47.json","view_paper":"https://pith.science/paper/NYNOD6WN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1609.04452&json=true","fetch_graph":"https://pith.science/api/pith-number/NYNOD6WNM4B6IQGVNMYVQW2F47/graph.json","fetch_events":"https://pith.science/api/pith-number/NYNOD6WNM4B6IQGVNMYVQW2F47/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NYNOD6WNM4B6IQGVNMYVQW2F47/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NYNOD6WNM4B6IQGVNMYVQW2F47/action/storage_attestation","attest_author":"https://pith.science/pith/NYNOD6WNM4B6IQGVNMYVQW2F47/action/author_attestation","sign_citation":"https://pith.science/pith/NYNOD6WNM4B6IQGVNMYVQW2F47/action/citation_signature","submit_replication":"https://pith.science/pith/NYNOD6WNM4B6IQGVNMYVQW2F47/action/replication_record"}},"created_at":"2026-05-18T01:04:17.191103+00:00","updated_at":"2026-05-18T01:04:17.191103+00:00"}