{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:37JLF5YYYUPFKYQFMSIFTNKKJL","short_pith_number":"pith:37JLF5YY","canonical_record":{"source":{"id":"2409.02090","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-09-03T17:41:13Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"664adcc736c04de4cd6d5911a1f1b16bed261e1c1655b3aecd883afe542f6e5a","abstract_canon_sha256":"fc20a1767118c5736f07feb61def3d24f0425e0c4a65d95c95431baaf9b80097"},"schema_version":"1.0"},"canonical_sha256":"dfd2b2f718c51e556205649059b54a4ad121507ea9894c07b3e2164d24f3b7c7","source":{"kind":"arxiv","id":"2409.02090","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.02090","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"arxiv_version","alias_value":"2409.02090v1","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.02090","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"pith_short_12","alias_value":"37JLF5YYYUPF","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"pith_short_16","alias_value":"37JLF5YYYUPFKYQF","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"pith_short_8","alias_value":"37JLF5YY","created_at":"2026-07-05T09:02:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:37JLF5YYYUPFKYQFMSIFTNKKJL","target":"record","payload":{"canonical_record":{"source":{"id":"2409.02090","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-09-03T17:41:13Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"664adcc736c04de4cd6d5911a1f1b16bed261e1c1655b3aecd883afe542f6e5a","abstract_canon_sha256":"fc20a1767118c5736f07feb61def3d24f0425e0c4a65d95c95431baaf9b80097"},"schema_version":"1.0"},"canonical_sha256":"dfd2b2f718c51e556205649059b54a4ad121507ea9894c07b3e2164d24f3b7c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:02:38.563116Z","signature_b64":"NGJLDTYJyqeEKIxIqJdrPFZIBPvIo1cQV4QkVsgkTyRXqlzZiWlW52etX2TyicEL6hFpzi6NwgBVXHluhnYoAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dfd2b2f718c51e556205649059b54a4ad121507ea9894c07b3e2164d24f3b7c7","last_reissued_at":"2026-07-05T09:02:38.562452Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:02:38.562452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.02090","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":"2026-07-05T09:02:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RWoqM8TdUFoNuCEvmuwUEs8TO8C4OGSyWh8J58bKWh1yUEFdZ/FQFrcItJRmLOHPyZmJKtNgI5Mp+hLm8QhGAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T02:35:21.236052Z"},"content_sha256":"e28e2b92dd6a3a57b6c81ffd90a6dbe090f5363b43d2c27f9648c91742dae5b4","schema_version":"1.0","event_id":"sha256:e28e2b92dd6a3a57b6c81ffd90a6dbe090f5363b43d2c27f9648c91742dae5b4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:37JLF5YYYUPFKYQFMSIFTNKKJL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Accelerating Decline of the Mass Transfer Rate in the Recurrent Nova T Pyxidis","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"E.M. Sion, J.L. Sokoloski, M.J. Darnley, P. Godon, R.E. Williams, S.S. lawrence","submitted_at":"2024-09-03T17:41:13Z","abstract_excerpt":"The recurrent nova T Pyxidis has erupted six times since 1890, with its last outburst in 2011, and the relatively short recurrence time between classical nova explosions indicates that T Pyx must have a massive white dwarf accreting at a high rate. It is believed that, since its outburst in 1890, the mass transfer rate in T Pyx was very large due to a feedback loop where the secondary is heated by the hot white dwarf. The feedback loop has been slowly shutting off, reducing the mass transfer rate, and thereby explaining the magnitude decline of T Pyx from $\\sim13.8$ (before 1890) to 15.7 just "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.02090","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/2409.02090/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":"2026-07-05T09:02:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l4t+ZE99WsVv+zVcm6tfcrWJs/enKkL/Iyna3i/PPzFafKoSFdG/dEuU/2cPkX5JThtrWa4p73bj45w5sA8hAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T02:35:21.236583Z"},"content_sha256":"0352b7c0d7f8266c671f5951e703df4d142c9951551b52c3ccbac70f07ceaca1","schema_version":"1.0","event_id":"sha256:0352b7c0d7f8266c671f5951e703df4d142c9951551b52c3ccbac70f07ceaca1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/37JLF5YYYUPFKYQFMSIFTNKKJL/bundle.json","state_url":"https://pith.science/pith/37JLF5YYYUPFKYQFMSIFTNKKJL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/37JLF5YYYUPFKYQFMSIFTNKKJL/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":"2026-08-08T02:35:21Z","links":{"resolver":"https://pith.science/pith/37JLF5YYYUPFKYQFMSIFTNKKJL","bundle":"https://pith.science/pith/37JLF5YYYUPFKYQFMSIFTNKKJL/bundle.json","state":"https://pith.science/pith/37JLF5YYYUPFKYQFMSIFTNKKJL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/37JLF5YYYUPFKYQFMSIFTNKKJL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:37JLF5YYYUPFKYQFMSIFTNKKJL","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":"fc20a1767118c5736f07feb61def3d24f0425e0c4a65d95c95431baaf9b80097","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-09-03T17:41:13Z","title_canon_sha256":"664adcc736c04de4cd6d5911a1f1b16bed261e1c1655b3aecd883afe542f6e5a"},"schema_version":"1.0","source":{"id":"2409.02090","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.02090","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"arxiv_version","alias_value":"2409.02090v1","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.02090","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"pith_short_12","alias_value":"37JLF5YYYUPF","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"pith_short_16","alias_value":"37JLF5YYYUPFKYQF","created_at":"2026-07-05T09:02:38Z"},{"alias_kind":"pith_short_8","alias_value":"37JLF5YY","created_at":"2026-07-05T09:02:38Z"}],"graph_snapshots":[{"event_id":"sha256:0352b7c0d7f8266c671f5951e703df4d142c9951551b52c3ccbac70f07ceaca1","target":"graph","created_at":"2026-07-05T09:02:38Z","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/2409.02090/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The recurrent nova T Pyxidis has erupted six times since 1890, with its last outburst in 2011, and the relatively short recurrence time between classical nova explosions indicates that T Pyx must have a massive white dwarf accreting at a high rate. It is believed that, since its outburst in 1890, the mass transfer rate in T Pyx was very large due to a feedback loop where the secondary is heated by the hot white dwarf. The feedback loop has been slowly shutting off, reducing the mass transfer rate, and thereby explaining the magnitude decline of T Pyx from $\\sim13.8$ (before 1890) to 15.7 just ","authors_text":"E.M. Sion, J.L. Sokoloski, M.J. Darnley, P. Godon, R.E. Williams, S.S. lawrence","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-09-03T17:41:13Z","title":"The Accelerating Decline of the Mass Transfer Rate in the Recurrent Nova T Pyxidis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.02090","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:e28e2b92dd6a3a57b6c81ffd90a6dbe090f5363b43d2c27f9648c91742dae5b4","target":"record","created_at":"2026-07-05T09:02:38Z","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":"fc20a1767118c5736f07feb61def3d24f0425e0c4a65d95c95431baaf9b80097","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-09-03T17:41:13Z","title_canon_sha256":"664adcc736c04de4cd6d5911a1f1b16bed261e1c1655b3aecd883afe542f6e5a"},"schema_version":"1.0","source":{"id":"2409.02090","kind":"arxiv","version":1}},"canonical_sha256":"dfd2b2f718c51e556205649059b54a4ad121507ea9894c07b3e2164d24f3b7c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dfd2b2f718c51e556205649059b54a4ad121507ea9894c07b3e2164d24f3b7c7","first_computed_at":"2026-07-05T09:02:38.562452Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:02:38.562452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NGJLDTYJyqeEKIxIqJdrPFZIBPvIo1cQV4QkVsgkTyRXqlzZiWlW52etX2TyicEL6hFpzi6NwgBVXHluhnYoAg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:02:38.563116Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.02090","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e28e2b92dd6a3a57b6c81ffd90a6dbe090f5363b43d2c27f9648c91742dae5b4","sha256:0352b7c0d7f8266c671f5951e703df4d142c9951551b52c3ccbac70f07ceaca1"],"state_sha256":"ac0e3d4dee3094273ef0c3ab6de7545e7bf32d95d86c6010bc723913b875abd3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WtcsYjeGKb7sALFeBaelCfme1dasp9Rlmfd1ymoBVWw7322+Efzia5ukw8PC4e+JiqXLQnFxcbmjxjESh8VmBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T02:35:21.241543Z","bundle_sha256":"d3d1504a1017f95e74bc0a855ed977d4e60cb212d8fd5008dae5b30f7d7965b8"}}