{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:657KVYELXJ25I6ZMZXPKGU36DQ","short_pith_number":"pith:657KVYEL","canonical_record":{"source":{"id":"1109.3477","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-15T20:25:07Z","cross_cats_sorted":[],"title_canon_sha256":"b227ddc041e7661ea5c090a2201390cf95496debe84490e2a88345eb55ea5fe5","abstract_canon_sha256":"27aecbb11d135d9f500ed3ebb9043e1ce58d91320986171ae81271025646e6e9"},"schema_version":"1.0"},"canonical_sha256":"f77eaae08bba75d47b2ccddea3537e1c2c8851d97cf9b46196f336314df470d4","source":{"kind":"arxiv","id":"1109.3477","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.3477","created_at":"2026-05-18T02:00:32Z"},{"alias_kind":"arxiv_version","alias_value":"1109.3477v1","created_at":"2026-05-18T02:00:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.3477","created_at":"2026-05-18T02:00:32Z"},{"alias_kind":"pith_short_12","alias_value":"657KVYELXJ25","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"657KVYELXJ25I6ZM","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"657KVYEL","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:657KVYELXJ25I6ZMZXPKGU36DQ","target":"record","payload":{"canonical_record":{"source":{"id":"1109.3477","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-15T20:25:07Z","cross_cats_sorted":[],"title_canon_sha256":"b227ddc041e7661ea5c090a2201390cf95496debe84490e2a88345eb55ea5fe5","abstract_canon_sha256":"27aecbb11d135d9f500ed3ebb9043e1ce58d91320986171ae81271025646e6e9"},"schema_version":"1.0"},"canonical_sha256":"f77eaae08bba75d47b2ccddea3537e1c2c8851d97cf9b46196f336314df470d4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:32.163900Z","signature_b64":"QbQg9z7DaqFLT1c17DSlyvrfBc6lunTpPYYChQgK3T7F3T6nC+g+5hdAJ6IMwf6/xvYSI/gX73yM5pEoWRb/Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f77eaae08bba75d47b2ccddea3537e1c2c8851d97cf9b46196f336314df470d4","last_reissued_at":"2026-05-18T02:00:32.163196Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:32.163196Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.3477","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iNkfui8Dsqd/Rvzh4ZsnWc/xNWCZgr+bFrf+Ew4mCObQqwblrRsc9RptVZce1PD4g4d544hKsrPP30YpGeNLBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T00:06:22.908870Z"},"content_sha256":"766442a65af43bcc5182c0756f52c5ef4e66ed80685e3283c01523a24c2f60be","schema_version":"1.0","event_id":"sha256:766442a65af43bcc5182c0756f52c5ef4e66ed80685e3283c01523a24c2f60be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:657KVYELXJ25I6ZMZXPKGU36DQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical and Dynamical Characterization of Comet-Like Main-Belt Asteroid (596) Scheila","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Bin Yang, Henry H. Hsieh, Nader Haghighipour","submitted_at":"2011-09-15T20:25:07Z","abstract_excerpt":"We present observations and a dynamical analysis of the comet-like main-belt object, (596) Scheila. V-band photometry obtained on UT 2010 December 12 indicates that Scheila's dust cloud has a scattering cross-section ~1.4 times larger than that of the nucleus, corresponding to a dust mass of M_d~3x10^7 kg. V-R color measurements indicate that both the nucleus and dust are redder than the Sun, with no significant color differences between the dust cloud's northern and southern plumes. We also undertake an ultimately unsuccessful search for CN emission, where we find CN and H2O production rates "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.3477","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kiDSN7piagrAyFv5eaK0006x1WkHptv1E8X4uKlAMx9PxAuB9aBbZ5AVYVrkBYdI+kwqWIox61DYHM0T+X0qDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T00:06:22.909214Z"},"content_sha256":"b6d8eea1b9b20be21b786801910e307a3ccb8c0c6ffdd5fe1ecb786847879f79","schema_version":"1.0","event_id":"sha256:b6d8eea1b9b20be21b786801910e307a3ccb8c0c6ffdd5fe1ecb786847879f79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/657KVYELXJ25I6ZMZXPKGU36DQ/bundle.json","state_url":"https://pith.science/pith/657KVYELXJ25I6ZMZXPKGU36DQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/657KVYELXJ25I6ZMZXPKGU36DQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-09T00:06:22Z","links":{"resolver":"https://pith.science/pith/657KVYELXJ25I6ZMZXPKGU36DQ","bundle":"https://pith.science/pith/657KVYELXJ25I6ZMZXPKGU36DQ/bundle.json","state":"https://pith.science/pith/657KVYELXJ25I6ZMZXPKGU36DQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/657KVYELXJ25I6ZMZXPKGU36DQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:657KVYELXJ25I6ZMZXPKGU36DQ","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":"27aecbb11d135d9f500ed3ebb9043e1ce58d91320986171ae81271025646e6e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-15T20:25:07Z","title_canon_sha256":"b227ddc041e7661ea5c090a2201390cf95496debe84490e2a88345eb55ea5fe5"},"schema_version":"1.0","source":{"id":"1109.3477","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.3477","created_at":"2026-05-18T02:00:32Z"},{"alias_kind":"arxiv_version","alias_value":"1109.3477v1","created_at":"2026-05-18T02:00:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.3477","created_at":"2026-05-18T02:00:32Z"},{"alias_kind":"pith_short_12","alias_value":"657KVYELXJ25","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"657KVYELXJ25I6ZM","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"657KVYEL","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:b6d8eea1b9b20be21b786801910e307a3ccb8c0c6ffdd5fe1ecb786847879f79","target":"graph","created_at":"2026-05-18T02:00:32Z","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":"We present observations and a dynamical analysis of the comet-like main-belt object, (596) Scheila. V-band photometry obtained on UT 2010 December 12 indicates that Scheila's dust cloud has a scattering cross-section ~1.4 times larger than that of the nucleus, corresponding to a dust mass of M_d~3x10^7 kg. V-R color measurements indicate that both the nucleus and dust are redder than the Sun, with no significant color differences between the dust cloud's northern and southern plumes. We also undertake an ultimately unsuccessful search for CN emission, where we find CN and H2O production rates ","authors_text":"Bin Yang, Henry H. Hsieh, Nader Haghighipour","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-15T20:25:07Z","title":"Optical and Dynamical Characterization of Comet-Like Main-Belt Asteroid (596) Scheila"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.3477","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":"sha256:766442a65af43bcc5182c0756f52c5ef4e66ed80685e3283c01523a24c2f60be","target":"record","created_at":"2026-05-18T02:00:32Z","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":"27aecbb11d135d9f500ed3ebb9043e1ce58d91320986171ae81271025646e6e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-15T20:25:07Z","title_canon_sha256":"b227ddc041e7661ea5c090a2201390cf95496debe84490e2a88345eb55ea5fe5"},"schema_version":"1.0","source":{"id":"1109.3477","kind":"arxiv","version":1}},"canonical_sha256":"f77eaae08bba75d47b2ccddea3537e1c2c8851d97cf9b46196f336314df470d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f77eaae08bba75d47b2ccddea3537e1c2c8851d97cf9b46196f336314df470d4","first_computed_at":"2026-05-18T02:00:32.163196Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:32.163196Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QbQg9z7DaqFLT1c17DSlyvrfBc6lunTpPYYChQgK3T7F3T6nC+g+5hdAJ6IMwf6/xvYSI/gX73yM5pEoWRb/Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:32.163900Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.3477","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:766442a65af43bcc5182c0756f52c5ef4e66ed80685e3283c01523a24c2f60be","sha256:b6d8eea1b9b20be21b786801910e307a3ccb8c0c6ffdd5fe1ecb786847879f79"],"state_sha256":"5701a571dbdc2d890a03bdc66e9b7d1463f36483f90c19d53864d8f156ad422a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"21u54Z6+fRPbegc5XGzTYegAjZoB6ohUxj3S/ezsdZvyr1fqweWlZRNw8HxvbSvdY8NzgMoJ1E/f0p0FNb+vAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T00:06:22.911352Z","bundle_sha256":"ca00b2efbb0df477f5347f47ed3e52a2303700ae300c4cd96dc676a7874be089"}}