{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:4CIBWMJUCUMOOT3MFP2N66FJOR","short_pith_number":"pith:4CIBWMJU","canonical_record":{"source":{"id":"2012.08521","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T19:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"8825138c0bd3fe238486e29e814b69439ef143baf5f43c0a5e1b5a94d8b153de","abstract_canon_sha256":"e36c4f94faf2d35952758c90201419f8d87572f9f5abb557abe6ad7adb412309"},"schema_version":"1.0"},"canonical_sha256":"e0901b31341518e74f6c2bf4df78a9747ba2b32ecd6ece17489ee70c2b4353e4","source":{"kind":"arxiv","id":"2012.08521","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.08521","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"arxiv_version","alias_value":"2012.08521v2","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.08521","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"pith_short_12","alias_value":"4CIBWMJUCUMO","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"4CIBWMJUCUMOOT3M","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"4CIBWMJU","created_at":"2026-07-05T02:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:4CIBWMJUCUMOOT3MFP2N66FJOR","target":"record","payload":{"canonical_record":{"source":{"id":"2012.08521","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T19:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"8825138c0bd3fe238486e29e814b69439ef143baf5f43c0a5e1b5a94d8b153de","abstract_canon_sha256":"e36c4f94faf2d35952758c90201419f8d87572f9f5abb557abe6ad7adb412309"},"schema_version":"1.0"},"canonical_sha256":"e0901b31341518e74f6c2bf4df78a9747ba2b32ecd6ece17489ee70c2b4353e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:29:39.012707Z","signature_b64":"7X/zEDu7XLThOAZjOU+JtfhiBzaDwCsVWrtnkofN/ZwgnSXdKBT3hUJinDSAQU4vTbh95kZjXkQ1mu8lG2s3Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e0901b31341518e74f6c2bf4df78a9747ba2b32ecd6ece17489ee70c2b4353e4","last_reissued_at":"2026-07-05T02:29:39.012206Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:29:39.012206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.08521","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":"2026-07-05T02:29:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xbov8Rb0Lck9y/Rmh0cgglnEY27qgtvv/Ly6XwYV2EXW0oqbQa2oSzzMtRW06pQchSTh2AzgcgKz/521gWF+Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T00:17:08.529823Z"},"content_sha256":"7c9c4b4f969ac65d25a28c9561b8c030f2ee813d91177ac7839e05c56536b4e7","schema_version":"1.0","event_id":"sha256:7c9c4b4f969ac65d25a28c9561b8c030f2ee813d91177ac7839e05c56536b4e7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:4CIBWMJUCUMOOT3MFP2N66FJOR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Swift Fix for Nuclear Outbursts","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Benjamin. J. Shappee, Jason T. Hinkle, Katie Auchettl, Thomas W.-S. Holoien","submitted_at":"2020-12-15T19:00:01Z","abstract_excerpt":"In November 2020, the Swift team announced an update to the UltraViolet and Optical Telescope calibration to correct for the loss of sensitivity over time. This correction affects observations in the three near ultraviolet (UV) filters, by up to 0.3 mag in some cases. As UV photometry is critical to characterizing tidal disruption events (TDEs) and other peculiar nuclear outbursts, we re-computed published Swift data for TDEs and other singular nuclear outbursts with Swift photometry in 2015 or later, as a service to the community. Using archival UV, optical, and infrared photometry we ran hos"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.08521","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/2012.08521/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":"2026-07-05T02:29:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hOd9Sh2e+90db/IEblH/TM9vch6prbLRnNfq9UV++4TDHQuJPjiIcxrS6A1ZfIDC1PWCnOfAQHGkhrn21nCzDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T00:17:08.530736Z"},"content_sha256":"ac6bbb1675ebdaa71beca607d495d64fe84ab1e38dc53a3b4d4a91ff955a0363","schema_version":"1.0","event_id":"sha256:ac6bbb1675ebdaa71beca607d495d64fe84ab1e38dc53a3b4d4a91ff955a0363"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4CIBWMJUCUMOOT3MFP2N66FJOR/bundle.json","state_url":"https://pith.science/pith/4CIBWMJUCUMOOT3MFP2N66FJOR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4CIBWMJUCUMOOT3MFP2N66FJOR/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":"2026-08-17T00:17:08Z","links":{"resolver":"https://pith.science/pith/4CIBWMJUCUMOOT3MFP2N66FJOR","bundle":"https://pith.science/pith/4CIBWMJUCUMOOT3MFP2N66FJOR/bundle.json","state":"https://pith.science/pith/4CIBWMJUCUMOOT3MFP2N66FJOR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4CIBWMJUCUMOOT3MFP2N66FJOR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:4CIBWMJUCUMOOT3MFP2N66FJOR","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":"e36c4f94faf2d35952758c90201419f8d87572f9f5abb557abe6ad7adb412309","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T19:00:01Z","title_canon_sha256":"8825138c0bd3fe238486e29e814b69439ef143baf5f43c0a5e1b5a94d8b153de"},"schema_version":"1.0","source":{"id":"2012.08521","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.08521","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"arxiv_version","alias_value":"2012.08521v2","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.08521","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"pith_short_12","alias_value":"4CIBWMJUCUMO","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"4CIBWMJUCUMOOT3M","created_at":"2026-07-05T02:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"4CIBWMJU","created_at":"2026-07-05T02:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:ac6bbb1675ebdaa71beca607d495d64fe84ab1e38dc53a3b4d4a91ff955a0363","target":"graph","created_at":"2026-07-05T02:29:39Z","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/2012.08521/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In November 2020, the Swift team announced an update to the UltraViolet and Optical Telescope calibration to correct for the loss of sensitivity over time. This correction affects observations in the three near ultraviolet (UV) filters, by up to 0.3 mag in some cases. As UV photometry is critical to characterizing tidal disruption events (TDEs) and other peculiar nuclear outbursts, we re-computed published Swift data for TDEs and other singular nuclear outbursts with Swift photometry in 2015 or later, as a service to the community. Using archival UV, optical, and infrared photometry we ran hos","authors_text":"Benjamin. J. Shappee, Jason T. Hinkle, Katie Auchettl, Thomas W.-S. Holoien","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T19:00:01Z","title":"A Swift Fix for Nuclear Outbursts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.08521","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":"sha256:7c9c4b4f969ac65d25a28c9561b8c030f2ee813d91177ac7839e05c56536b4e7","target":"record","created_at":"2026-07-05T02:29:39Z","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":"e36c4f94faf2d35952758c90201419f8d87572f9f5abb557abe6ad7adb412309","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-15T19:00:01Z","title_canon_sha256":"8825138c0bd3fe238486e29e814b69439ef143baf5f43c0a5e1b5a94d8b153de"},"schema_version":"1.0","source":{"id":"2012.08521","kind":"arxiv","version":2}},"canonical_sha256":"e0901b31341518e74f6c2bf4df78a9747ba2b32ecd6ece17489ee70c2b4353e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e0901b31341518e74f6c2bf4df78a9747ba2b32ecd6ece17489ee70c2b4353e4","first_computed_at":"2026-07-05T02:29:39.012206Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:29:39.012206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7X/zEDu7XLThOAZjOU+JtfhiBzaDwCsVWrtnkofN/ZwgnSXdKBT3hUJinDSAQU4vTbh95kZjXkQ1mu8lG2s3Bw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:29:39.012707Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.08521","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c9c4b4f969ac65d25a28c9561b8c030f2ee813d91177ac7839e05c56536b4e7","sha256:ac6bbb1675ebdaa71beca607d495d64fe84ab1e38dc53a3b4d4a91ff955a0363"],"state_sha256":"da68dc4a2fbb6a738dd810e8383cb666895190ffae1b1cebeec930a71a5eb44b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C187a4At6y4FVlifW85fohpGFo2rQoQLTgk6IXEFHcJ/wGDZU9FWGOpcorKHI6cDw/Y1Is+Wkd+si/eN2pSkCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T00:17:08.537131Z","bundle_sha256":"5e619e67992edc63c9633966124e5c66641214b6ef19bbe5e93eeb0c1fce8a5c"}}