{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:AGOM33ZYIOP7OVCCPKSRT5YH64","short_pith_number":"pith:AGOM33ZY","canonical_record":{"source":{"id":"2208.12364","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-08-25T22:41:19Z","cross_cats_sorted":[],"title_canon_sha256":"53ab61330124f6b66e2f2f181f3ef37a4b00c6c5756b0e0bdf327126e3de4f01","abstract_canon_sha256":"5f2ba847337be60983de67e444b095ac34b05bcfd270e52ad5b17d768961099c"},"schema_version":"1.0"},"canonical_sha256":"019ccdef38439ff754427aa519f707f73fc1b2e1b6c9af2d0fc21c557634c351","source":{"kind":"arxiv","id":"2208.12364","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.12364","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"arxiv_version","alias_value":"2208.12364v1","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.12364","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"pith_short_12","alias_value":"AGOM33ZYIOP7","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"pith_short_16","alias_value":"AGOM33ZYIOP7OVCC","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"pith_short_8","alias_value":"AGOM33ZY","created_at":"2026-07-05T05:09:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:AGOM33ZYIOP7OVCCPKSRT5YH64","target":"record","payload":{"canonical_record":{"source":{"id":"2208.12364","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-08-25T22:41:19Z","cross_cats_sorted":[],"title_canon_sha256":"53ab61330124f6b66e2f2f181f3ef37a4b00c6c5756b0e0bdf327126e3de4f01","abstract_canon_sha256":"5f2ba847337be60983de67e444b095ac34b05bcfd270e52ad5b17d768961099c"},"schema_version":"1.0"},"canonical_sha256":"019ccdef38439ff754427aa519f707f73fc1b2e1b6c9af2d0fc21c557634c351","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:09:21.590045Z","signature_b64":"etsoxNKpIHaxwZaRGtVm3pw5GtvjqXnsiqec7tGgw+/kXWjMu8B98LQJ+aBZsNg2YO63TXWS/PzrMvJlVOKPAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"019ccdef38439ff754427aa519f707f73fc1b2e1b6c9af2d0fc21c557634c351","last_reissued_at":"2026-07-05T05:09:21.589682Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:09:21.589682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.12364","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":"2026-07-05T05:09:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IjpoEBhJWRLX+xlXWh/8x6xteK6PxgxX2r3r4ILG2BP6mZRh70Zn1+MP8bGDHZWC3v4iZH4Asje0N83LthSlBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:17:57.818664Z"},"content_sha256":"2fd8ad990ea5b28382161a5ba988edbc66d390de8113d2c2ce2156991878f09b","schema_version":"1.0","event_id":"sha256:2fd8ad990ea5b28382161a5ba988edbc66d390de8113d2c2ce2156991878f09b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:AGOM33ZYIOP7OVCCPKSRT5YH64","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chasing Tails: Active Asteroid, Centaur, and Quasi-Hilda Discovery with Astroinformatics and Citizen Science","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Colin Orion Chandler","submitted_at":"2022-08-25T22:41:19Z","abstract_excerpt":"The 1950 discovery of activity emanating from asteroid (4015) Wilson-Harrington prompted astronomers to realize comet-like activity is not limited to comets. Since then < 30 active asteroids have been discovered, yet they hold clues about fundamental physical and chemical processes in the solar system. Around half of the activity is attributed to sublimation, highlighting asteroids as a \"volatile reservoir\" - a dynamical group of minor planets that harbor volatiles. Centaurs, found between the orbits of Jupiter and Neptune, were first recognized in 1977 and represent another reservoir. Active "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.12364","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2208.12364/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":"2026-07-05T05:09:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NmLqgjW/VlD4G0m8G9IsRuNSFjDtv2kj7s6MEKlc6wVThxyJdBtYYvD5aQUYtbDpfyjYWIUQRneYP+Fn0afMBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T15:17:57.819616Z"},"content_sha256":"8c0a19c360ca045831dab2a0929b6b02aca952b8e382f59484da9b08c5acbfdf","schema_version":"1.0","event_id":"sha256:8c0a19c360ca045831dab2a0929b6b02aca952b8e382f59484da9b08c5acbfdf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AGOM33ZYIOP7OVCCPKSRT5YH64/bundle.json","state_url":"https://pith.science/pith/AGOM33ZYIOP7OVCCPKSRT5YH64/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AGOM33ZYIOP7OVCCPKSRT5YH64/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":"2026-08-05T15:17:57Z","links":{"resolver":"https://pith.science/pith/AGOM33ZYIOP7OVCCPKSRT5YH64","bundle":"https://pith.science/pith/AGOM33ZYIOP7OVCCPKSRT5YH64/bundle.json","state":"https://pith.science/pith/AGOM33ZYIOP7OVCCPKSRT5YH64/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AGOM33ZYIOP7OVCCPKSRT5YH64/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:AGOM33ZYIOP7OVCCPKSRT5YH64","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":"5f2ba847337be60983de67e444b095ac34b05bcfd270e52ad5b17d768961099c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-08-25T22:41:19Z","title_canon_sha256":"53ab61330124f6b66e2f2f181f3ef37a4b00c6c5756b0e0bdf327126e3de4f01"},"schema_version":"1.0","source":{"id":"2208.12364","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.12364","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"arxiv_version","alias_value":"2208.12364v1","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.12364","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"pith_short_12","alias_value":"AGOM33ZYIOP7","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"pith_short_16","alias_value":"AGOM33ZYIOP7OVCC","created_at":"2026-07-05T05:09:21Z"},{"alias_kind":"pith_short_8","alias_value":"AGOM33ZY","created_at":"2026-07-05T05:09:21Z"}],"graph_snapshots":[{"event_id":"sha256:8c0a19c360ca045831dab2a0929b6b02aca952b8e382f59484da9b08c5acbfdf","target":"graph","created_at":"2026-07-05T05:09:21Z","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/2208.12364/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The 1950 discovery of activity emanating from asteroid (4015) Wilson-Harrington prompted astronomers to realize comet-like activity is not limited to comets. Since then < 30 active asteroids have been discovered, yet they hold clues about fundamental physical and chemical processes in the solar system. Around half of the activity is attributed to sublimation, highlighting asteroids as a \"volatile reservoir\" - a dynamical group of minor planets that harbor volatiles. Centaurs, found between the orbits of Jupiter and Neptune, were first recognized in 1977 and represent another reservoir. Active ","authors_text":"Colin Orion Chandler","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-08-25T22:41:19Z","title":"Chasing Tails: Active Asteroid, Centaur, and Quasi-Hilda Discovery with Astroinformatics and Citizen Science"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.12364","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":"sha256:2fd8ad990ea5b28382161a5ba988edbc66d390de8113d2c2ce2156991878f09b","target":"record","created_at":"2026-07-05T05:09:21Z","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":"5f2ba847337be60983de67e444b095ac34b05bcfd270e52ad5b17d768961099c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-08-25T22:41:19Z","title_canon_sha256":"53ab61330124f6b66e2f2f181f3ef37a4b00c6c5756b0e0bdf327126e3de4f01"},"schema_version":"1.0","source":{"id":"2208.12364","kind":"arxiv","version":1}},"canonical_sha256":"019ccdef38439ff754427aa519f707f73fc1b2e1b6c9af2d0fc21c557634c351","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"019ccdef38439ff754427aa519f707f73fc1b2e1b6c9af2d0fc21c557634c351","first_computed_at":"2026-07-05T05:09:21.589682Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:09:21.589682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"etsoxNKpIHaxwZaRGtVm3pw5GtvjqXnsiqec7tGgw+/kXWjMu8B98LQJ+aBZsNg2YO63TXWS/PzrMvJlVOKPAw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:09:21.590045Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.12364","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2fd8ad990ea5b28382161a5ba988edbc66d390de8113d2c2ce2156991878f09b","sha256:8c0a19c360ca045831dab2a0929b6b02aca952b8e382f59484da9b08c5acbfdf"],"state_sha256":"3079d4213bedc9207c2944f1fb16a20795da0c8941f483b9cc9ab4fe05809ca5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A1qINb3kIc/TQPk7rVNrlBEn3wpTp7ofLaxm81ATVZyvWvpvRRl68A79gavgaFD8phqkB+gHYWjblI0aFxrLAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T15:17:57.867304Z","bundle_sha256":"eee80433a5e35deb5b80a3503d5bb952431c79f912d30c5e0bef6593e7abb98f"}}