{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:BAO6HRQJU4MCESB6R3RWIVERLC","short_pith_number":"pith:BAO6HRQJ","canonical_record":{"source":{"id":"2103.05601","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-03-09T18:19:47Z","cross_cats_sorted":[],"title_canon_sha256":"f2b1468d61b0e2bfac9392e02454e6f1e375a4d1344b5668d5e4432961469737","abstract_canon_sha256":"3c255473f0b7e40c48205e223ba69ce6f6543b06dc445362c0e5825fb75ae262"},"schema_version":"1.0"},"canonical_sha256":"081de3c609a71822483e8ee364549158ab8eaafa41ac660990781e0c247d69da","source":{"kind":"arxiv","id":"2103.05601","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.05601","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"arxiv_version","alias_value":"2103.05601v2","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.05601","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"pith_short_12","alias_value":"BAO6HRQJU4MC","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"pith_short_16","alias_value":"BAO6HRQJU4MCESB6","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"pith_short_8","alias_value":"BAO6HRQJ","created_at":"2026-07-05T02:31:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:BAO6HRQJU4MCESB6R3RWIVERLC","target":"record","payload":{"canonical_record":{"source":{"id":"2103.05601","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-03-09T18:19:47Z","cross_cats_sorted":[],"title_canon_sha256":"f2b1468d61b0e2bfac9392e02454e6f1e375a4d1344b5668d5e4432961469737","abstract_canon_sha256":"3c255473f0b7e40c48205e223ba69ce6f6543b06dc445362c0e5825fb75ae262"},"schema_version":"1.0"},"canonical_sha256":"081de3c609a71822483e8ee364549158ab8eaafa41ac660990781e0c247d69da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:31:54.329631Z","signature_b64":"dhTYZVLtjtnjnyWIIf2RwwptLtrFBxSAt1W6Mwp8r8eofinB/iUNFgJyluttspSSlUaD9APG0IAzoAjjAE8YCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"081de3c609a71822483e8ee364549158ab8eaafa41ac660990781e0c247d69da","last_reissued_at":"2026-07-05T02:31:54.329144Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:31:54.329144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.05601","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:31:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uBaDK0PYN+wcVZIpaMkvH2Mq84AG0yTAMjtel4/l/9K5p8zQ2RinbJn3ZiuGBsyIPSYEWOeYQV2YW+JPO0hXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T02:25:45.583577Z"},"content_sha256":"19bf03906574dcffe9dab8911742ef72593334aa3d9a2bc8fa53c095a40b7b5e","schema_version":"1.0","event_id":"sha256:19bf03906574dcffe9dab8911742ef72593334aa3d9a2bc8fa53c095a40b7b5e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:BAO6HRQJU4MCESB6R3RWIVERLC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Rotational Mass Shedding from Asteroid (6478) Gault","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"D. C. Jewitt, H. Weaver, J. Agarwal, J. Li, J. X. Luu, M. Mutchler, Y. Kim","submitted_at":"2021-03-09T18:19:47Z","abstract_excerpt":"The $\\sim$4 km diameter main belt asteroid 6478 Gault has ejected dust intermittently since at least 2013. The character of the emission, including its episodic nature and the low speed of the ejected particles ($V \\sim $ 0.15 m s$^{-1}$), is most consistent with mass loss from a body rotating near rotational breakup. Owing to dust contamination of the nucleus signal, this conclusion has not yet been confirmed. To test this idea, we have obtained new images of Gault in August 2020, in the absence of dust. Our photometry shows a lightcurve having a very small amplitude (maximum $\\sim 0.05$ mag)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.05601","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.05601/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:31:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bzmyyGL2LSfS8Zk6+nGcMhMcVHCXVt91XA9rh62CLzvYGqbX2BB6kHsQGZUO9u8I7Ym7eZS57sA4d0VDlkcZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T02:25:45.583965Z"},"content_sha256":"791cc5f8721d06677c496a0522e8258d734de2866b7f18d15b82c2c28be739c9","schema_version":"1.0","event_id":"sha256:791cc5f8721d06677c496a0522e8258d734de2866b7f18d15b82c2c28be739c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BAO6HRQJU4MCESB6R3RWIVERLC/bundle.json","state_url":"https://pith.science/pith/BAO6HRQJU4MCESB6R3RWIVERLC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BAO6HRQJU4MCESB6R3RWIVERLC/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":"2026-07-09T02:25:45Z","links":{"resolver":"https://pith.science/pith/BAO6HRQJU4MCESB6R3RWIVERLC","bundle":"https://pith.science/pith/BAO6HRQJU4MCESB6R3RWIVERLC/bundle.json","state":"https://pith.science/pith/BAO6HRQJU4MCESB6R3RWIVERLC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BAO6HRQJU4MCESB6R3RWIVERLC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:BAO6HRQJU4MCESB6R3RWIVERLC","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":"3c255473f0b7e40c48205e223ba69ce6f6543b06dc445362c0e5825fb75ae262","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-03-09T18:19:47Z","title_canon_sha256":"f2b1468d61b0e2bfac9392e02454e6f1e375a4d1344b5668d5e4432961469737"},"schema_version":"1.0","source":{"id":"2103.05601","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.05601","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"arxiv_version","alias_value":"2103.05601v2","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.05601","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"pith_short_12","alias_value":"BAO6HRQJU4MC","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"pith_short_16","alias_value":"BAO6HRQJU4MCESB6","created_at":"2026-07-05T02:31:54Z"},{"alias_kind":"pith_short_8","alias_value":"BAO6HRQJ","created_at":"2026-07-05T02:31:54Z"}],"graph_snapshots":[{"event_id":"sha256:791cc5f8721d06677c496a0522e8258d734de2866b7f18d15b82c2c28be739c9","target":"graph","created_at":"2026-07-05T02:31:54Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2103.05601/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The $\\sim$4 km diameter main belt asteroid 6478 Gault has ejected dust intermittently since at least 2013. The character of the emission, including its episodic nature and the low speed of the ejected particles ($V \\sim $ 0.15 m s$^{-1}$), is most consistent with mass loss from a body rotating near rotational breakup. Owing to dust contamination of the nucleus signal, this conclusion has not yet been confirmed. To test this idea, we have obtained new images of Gault in August 2020, in the absence of dust. Our photometry shows a lightcurve having a very small amplitude (maximum $\\sim 0.05$ mag)","authors_text":"D. C. Jewitt, H. Weaver, J. Agarwal, J. Li, J. X. Luu, M. Mutchler, Y. Kim","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-03-09T18:19:47Z","title":"Rotational Mass Shedding from Asteroid (6478) Gault"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.05601","kind":"arxiv","version":2},"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":"sha256:19bf03906574dcffe9dab8911742ef72593334aa3d9a2bc8fa53c095a40b7b5e","target":"record","created_at":"2026-07-05T02:31:54Z","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":"3c255473f0b7e40c48205e223ba69ce6f6543b06dc445362c0e5825fb75ae262","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-03-09T18:19:47Z","title_canon_sha256":"f2b1468d61b0e2bfac9392e02454e6f1e375a4d1344b5668d5e4432961469737"},"schema_version":"1.0","source":{"id":"2103.05601","kind":"arxiv","version":2}},"canonical_sha256":"081de3c609a71822483e8ee364549158ab8eaafa41ac660990781e0c247d69da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"081de3c609a71822483e8ee364549158ab8eaafa41ac660990781e0c247d69da","first_computed_at":"2026-07-05T02:31:54.329144Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:31:54.329144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dhTYZVLtjtnjnyWIIf2RwwptLtrFBxSAt1W6Mwp8r8eofinB/iUNFgJyluttspSSlUaD9APG0IAzoAjjAE8YCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:31:54.329631Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.05601","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19bf03906574dcffe9dab8911742ef72593334aa3d9a2bc8fa53c095a40b7b5e","sha256:791cc5f8721d06677c496a0522e8258d734de2866b7f18d15b82c2c28be739c9"],"state_sha256":"d56aa785610a7c35b090624d8c66c36c03404a342f5faab65bf6ee8a5aa57c76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sI5ax5lPuADrJqQZPUDPSp2J/OKMvZBxC/PkF/igvUhQCSHY/rDWrn2FrlZTk55uajuv4OE1U96V7/6G4kH3CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T02:25:45.586043Z","bundle_sha256":"3a7ec1c5c02b9a8dbf910d7b70d4df09c4a531fbb10a50c42fb82caf3b6b77d2"}}