{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:UXPNWTIM5K5AJASOMHIMUSS2AM","short_pith_number":"pith:UXPNWTIM","canonical_record":{"source":{"id":"2009.11902","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-09-24T18:50:53Z","cross_cats_sorted":[],"title_canon_sha256":"6ba87d853fee8af6b19f71dc0ae3d59a85db636ce650b4c6e6ee2b1989a73cf7","abstract_canon_sha256":"8200f1e6e397d3d771bd27e1792f175869fdbc4c27f72bbc1fd3774a11b783c8"},"schema_version":"1.0"},"canonical_sha256":"a5dedb4d0ceaba04824e61d0ca4a5a0324d1b98d5405ae4fe4871ec65287abe1","source":{"kind":"arxiv","id":"2009.11902","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.11902","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"arxiv_version","alias_value":"2009.11902v1","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.11902","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"pith_short_12","alias_value":"UXPNWTIM5K5A","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"pith_short_16","alias_value":"UXPNWTIM5K5AJASO","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"pith_short_8","alias_value":"UXPNWTIM","created_at":"2026-07-05T01:42:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:UXPNWTIM5K5AJASOMHIMUSS2AM","target":"record","payload":{"canonical_record":{"source":{"id":"2009.11902","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-09-24T18:50:53Z","cross_cats_sorted":[],"title_canon_sha256":"6ba87d853fee8af6b19f71dc0ae3d59a85db636ce650b4c6e6ee2b1989a73cf7","abstract_canon_sha256":"8200f1e6e397d3d771bd27e1792f175869fdbc4c27f72bbc1fd3774a11b783c8"},"schema_version":"1.0"},"canonical_sha256":"a5dedb4d0ceaba04824e61d0ca4a5a0324d1b98d5405ae4fe4871ec65287abe1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:42:46.598500Z","signature_b64":"2i43ofx2bhciPdHHf+EsiuV4xecTVAnpPP9yl/zEFz2KpziMHRGF1K04+HzPt3KjTvdnYmtHpkfAaK455EilAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5dedb4d0ceaba04824e61d0ca4a5a0324d1b98d5405ae4fe4871ec65287abe1","last_reissued_at":"2026-07-05T01:42:46.598066Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:42:46.598066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2009.11902","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":"2026-07-05T01:42:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1l7jzlbiwBp3+KGSokgyk4UytbkQ2KnwEqXuEY6mLZhfdRssOM8ZfPNhMMWwu96SHbdCfrk+3IqDgv/m+duIDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T19:43:11.712376Z"},"content_sha256":"c5d8cf3f882a164c52e016601d07bd3be2274b71d228d2c8bbc9a04a1f8049af","schema_version":"1.0","event_id":"sha256:c5d8cf3f882a164c52e016601d07bd3be2274b71d228d2c8bbc9a04a1f8049af"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:UXPNWTIM5K5AJASOMHIMUSS2AM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Increasing activity in T CrB suggests nova eruption is impending","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Gerardo J. M. Luna, J. L. Sokoloski, K. Mukai, P. Kuin","submitted_at":"2020-09-24T18:50:53Z","abstract_excerpt":"Estimates of the accretion rate in symbiotic recurrent novae (RNe) often fall short of theoretical expectations by orders of magnitude. This apparent discrepancy can be resolved if the accumulation of mass by the white dwarf (WD) is highly sporadic, and most observations are performed during low states. Here we use a reanalysis of archival data from the Digital Access to a Sky Century @Harvard (DASCH) survey to argue that the most recent nova eruption in symbiotic RN T CrB, in 1946, occurred during -- and was therefore triggered by -- a transient accretion high state. Based on similarities in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.11902","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/2009.11902/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":"2026-07-05T01:42:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qIsKH1y5GYq7ybhFLQnIvNyM2B1mAVuchnT8VtCu/AQyX823JnAuFMwgCrUCaDJ+KlY0YHq7mvSm1WaEl5ucAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T19:43:11.712760Z"},"content_sha256":"21a69c8d321c9a18c1fbc813bfdb595011dc31e80b9c4a454f24c815efb95f20","schema_version":"1.0","event_id":"sha256:21a69c8d321c9a18c1fbc813bfdb595011dc31e80b9c4a454f24c815efb95f20"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UXPNWTIM5K5AJASOMHIMUSS2AM/bundle.json","state_url":"https://pith.science/pith/UXPNWTIM5K5AJASOMHIMUSS2AM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UXPNWTIM5K5AJASOMHIMUSS2AM/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":"2026-07-08T19:43:11Z","links":{"resolver":"https://pith.science/pith/UXPNWTIM5K5AJASOMHIMUSS2AM","bundle":"https://pith.science/pith/UXPNWTIM5K5AJASOMHIMUSS2AM/bundle.json","state":"https://pith.science/pith/UXPNWTIM5K5AJASOMHIMUSS2AM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UXPNWTIM5K5AJASOMHIMUSS2AM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:UXPNWTIM5K5AJASOMHIMUSS2AM","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":"8200f1e6e397d3d771bd27e1792f175869fdbc4c27f72bbc1fd3774a11b783c8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-09-24T18:50:53Z","title_canon_sha256":"6ba87d853fee8af6b19f71dc0ae3d59a85db636ce650b4c6e6ee2b1989a73cf7"},"schema_version":"1.0","source":{"id":"2009.11902","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.11902","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"arxiv_version","alias_value":"2009.11902v1","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.11902","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"pith_short_12","alias_value":"UXPNWTIM5K5A","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"pith_short_16","alias_value":"UXPNWTIM5K5AJASO","created_at":"2026-07-05T01:42:46Z"},{"alias_kind":"pith_short_8","alias_value":"UXPNWTIM","created_at":"2026-07-05T01:42:46Z"}],"graph_snapshots":[{"event_id":"sha256:21a69c8d321c9a18c1fbc813bfdb595011dc31e80b9c4a454f24c815efb95f20","target":"graph","created_at":"2026-07-05T01:42:46Z","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/2009.11902/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Estimates of the accretion rate in symbiotic recurrent novae (RNe) often fall short of theoretical expectations by orders of magnitude. This apparent discrepancy can be resolved if the accumulation of mass by the white dwarf (WD) is highly sporadic, and most observations are performed during low states. Here we use a reanalysis of archival data from the Digital Access to a Sky Century @Harvard (DASCH) survey to argue that the most recent nova eruption in symbiotic RN T CrB, in 1946, occurred during -- and was therefore triggered by -- a transient accretion high state. Based on similarities in ","authors_text":"Gerardo J. M. Luna, J. L. Sokoloski, K. Mukai, P. Kuin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-09-24T18:50:53Z","title":"Increasing activity in T CrB suggests nova eruption is impending"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.11902","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:c5d8cf3f882a164c52e016601d07bd3be2274b71d228d2c8bbc9a04a1f8049af","target":"record","created_at":"2026-07-05T01:42:46Z","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":"8200f1e6e397d3d771bd27e1792f175869fdbc4c27f72bbc1fd3774a11b783c8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-09-24T18:50:53Z","title_canon_sha256":"6ba87d853fee8af6b19f71dc0ae3d59a85db636ce650b4c6e6ee2b1989a73cf7"},"schema_version":"1.0","source":{"id":"2009.11902","kind":"arxiv","version":1}},"canonical_sha256":"a5dedb4d0ceaba04824e61d0ca4a5a0324d1b98d5405ae4fe4871ec65287abe1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5dedb4d0ceaba04824e61d0ca4a5a0324d1b98d5405ae4fe4871ec65287abe1","first_computed_at":"2026-07-05T01:42:46.598066Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:42:46.598066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2i43ofx2bhciPdHHf+EsiuV4xecTVAnpPP9yl/zEFz2KpziMHRGF1K04+HzPt3KjTvdnYmtHpkfAaK455EilAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:42:46.598500Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.11902","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c5d8cf3f882a164c52e016601d07bd3be2274b71d228d2c8bbc9a04a1f8049af","sha256:21a69c8d321c9a18c1fbc813bfdb595011dc31e80b9c4a454f24c815efb95f20"],"state_sha256":"8cc7c56bd6f1327d787bbd601b844942d046e445e64313ddb9e587b8e328720a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NxNWr1NGM09TfBVQ+V7BE+kbAg7Vn4wvubQgR+0DZxwSc2BMn+gqtfSVCoHyOi3NIgCOouJSKHp6z4ktl92qCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T19:43:11.714930Z","bundle_sha256":"43acc6d8d3832c8a446f470112c94a405d12fc5e5f861f2376da624ab002b1aa"}}