{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:TXIBXHBXQD7NZSR7TTXUABVRDH","short_pith_number":"pith:TXIBXHBX","canonical_record":{"source":{"id":"1307.4088","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-15T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"b8696bc031ca0a45bf540074577bc0145f6e1bc65038cb216e491c45879180cb","abstract_canon_sha256":"ff8704b0c9fea4fb51bd5170c5be5a48291d064e2a9c8fdca9c708f69a38a2d7"},"schema_version":"1.0"},"canonical_sha256":"9dd01b9c3780fedcca3f9cef4006b119c9581aec89cfe0116cf2cad7b623f98d","source":{"kind":"arxiv","id":"1307.4088","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.4088","created_at":"2026-05-18T02:51:06Z"},{"alias_kind":"arxiv_version","alias_value":"1307.4088v2","created_at":"2026-05-18T02:51:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.4088","created_at":"2026-05-18T02:51:06Z"},{"alias_kind":"pith_short_12","alias_value":"TXIBXHBXQD7N","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"TXIBXHBXQD7NZSR7","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"TXIBXHBX","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:TXIBXHBXQD7NZSR7TTXUABVRDH","target":"record","payload":{"canonical_record":{"source":{"id":"1307.4088","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-15T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"b8696bc031ca0a45bf540074577bc0145f6e1bc65038cb216e491c45879180cb","abstract_canon_sha256":"ff8704b0c9fea4fb51bd5170c5be5a48291d064e2a9c8fdca9c708f69a38a2d7"},"schema_version":"1.0"},"canonical_sha256":"9dd01b9c3780fedcca3f9cef4006b119c9581aec89cfe0116cf2cad7b623f98d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:51:06.556373Z","signature_b64":"3oPU871eBOJEauHnW9YIRO+tIRplISmCbkrlHRjVTBXMso7U2zGcrTfBFb96wiTQ2Tz3w6jGsz7V2ATIbHCvAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9dd01b9c3780fedcca3f9cef4006b119c9581aec89cfe0116cf2cad7b623f98d","last_reissued_at":"2026-05-18T02:51:06.555865Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:51:06.555865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.4088","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":"2026-05-18T02:51:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qNZMFTMpC/RpOwyCRzEWVJLSsFLfsBxwGioyr1K6mz+bY/FneCl2aC3UXO2sdFwQj7sJvcoPGP8Pnr/6SWWACQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T08:37:02.558579Z"},"content_sha256":"7ca2552e76c9f03c217d0032d3c1a63e7abc5162182f15a70f018a6e3576a08d","schema_version":"1.0","event_id":"sha256:7ca2552e76c9f03c217d0032d3c1a63e7abc5162182f15a70f018a6e3576a08d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:TXIBXHBXQD7NZSR7TTXUABVRDH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Burying a Binary: Dynamical Mass Loss and a Continuous Optically-Thick Outflow Explain the Candidate Stellar Merger V1309 Scorpii","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Ondrej Pejcha","submitted_at":"2013-07-15T20:00:04Z","abstract_excerpt":"V1309 Sco was proposed to be a stellar merger and a common envelope transient based on the pre-outburst light curve of a contact eclipsing binary with a rapidly decaying orbital period. Using published data, I show that the period decay timescale P/Pdot of V1309 Sco decreased from ~1000 to ~170 years in less than about 6 years, which implies a very high value of second period derivative. I argue that V1309 Sco experienced an onset of dynamical mass loss through the outer Lagrange point, which eventually obscured the binary. The photosphere of the resulting continuous optically-thick outflow ex"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.4088","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":""},"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":"2026-05-18T02:51:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iQIP7Ja5DYmuJeuvbMQgV6UUjeosETfs9LkEBXcDEadZfJa4LkYg1BjypDWknMncsEfU8jekJ0dmj+VQK+edBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T08:37:02.558942Z"},"content_sha256":"3737438223610d84fc0852b1193e4c7f33547e3a62b8e3d938e4fa8fb4d96959","schema_version":"1.0","event_id":"sha256:3737438223610d84fc0852b1193e4c7f33547e3a62b8e3d938e4fa8fb4d96959"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TXIBXHBXQD7NZSR7TTXUABVRDH/bundle.json","state_url":"https://pith.science/pith/TXIBXHBXQD7NZSR7TTXUABVRDH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TXIBXHBXQD7NZSR7TTXUABVRDH/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":"2026-07-04T08:37:02Z","links":{"resolver":"https://pith.science/pith/TXIBXHBXQD7NZSR7TTXUABVRDH","bundle":"https://pith.science/pith/TXIBXHBXQD7NZSR7TTXUABVRDH/bundle.json","state":"https://pith.science/pith/TXIBXHBXQD7NZSR7TTXUABVRDH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TXIBXHBXQD7NZSR7TTXUABVRDH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:TXIBXHBXQD7NZSR7TTXUABVRDH","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":"ff8704b0c9fea4fb51bd5170c5be5a48291d064e2a9c8fdca9c708f69a38a2d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-15T20:00:04Z","title_canon_sha256":"b8696bc031ca0a45bf540074577bc0145f6e1bc65038cb216e491c45879180cb"},"schema_version":"1.0","source":{"id":"1307.4088","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.4088","created_at":"2026-05-18T02:51:06Z"},{"alias_kind":"arxiv_version","alias_value":"1307.4088v2","created_at":"2026-05-18T02:51:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.4088","created_at":"2026-05-18T02:51:06Z"},{"alias_kind":"pith_short_12","alias_value":"TXIBXHBXQD7N","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"TXIBXHBXQD7NZSR7","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"TXIBXHBX","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:3737438223610d84fc0852b1193e4c7f33547e3a62b8e3d938e4fa8fb4d96959","target":"graph","created_at":"2026-05-18T02:51:06Z","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"},"paper":{"abstract_excerpt":"V1309 Sco was proposed to be a stellar merger and a common envelope transient based on the pre-outburst light curve of a contact eclipsing binary with a rapidly decaying orbital period. Using published data, I show that the period decay timescale P/Pdot of V1309 Sco decreased from ~1000 to ~170 years in less than about 6 years, which implies a very high value of second period derivative. I argue that V1309 Sco experienced an onset of dynamical mass loss through the outer Lagrange point, which eventually obscured the binary. The photosphere of the resulting continuous optically-thick outflow ex","authors_text":"Ondrej Pejcha","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-15T20:00:04Z","title":"Burying a Binary: Dynamical Mass Loss and a Continuous Optically-Thick Outflow Explain the Candidate Stellar Merger V1309 Scorpii"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.4088","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":"sha256:7ca2552e76c9f03c217d0032d3c1a63e7abc5162182f15a70f018a6e3576a08d","target":"record","created_at":"2026-05-18T02:51:06Z","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":"ff8704b0c9fea4fb51bd5170c5be5a48291d064e2a9c8fdca9c708f69a38a2d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-15T20:00:04Z","title_canon_sha256":"b8696bc031ca0a45bf540074577bc0145f6e1bc65038cb216e491c45879180cb"},"schema_version":"1.0","source":{"id":"1307.4088","kind":"arxiv","version":2}},"canonical_sha256":"9dd01b9c3780fedcca3f9cef4006b119c9581aec89cfe0116cf2cad7b623f98d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9dd01b9c3780fedcca3f9cef4006b119c9581aec89cfe0116cf2cad7b623f98d","first_computed_at":"2026-05-18T02:51:06.555865Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:51:06.555865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3oPU871eBOJEauHnW9YIRO+tIRplISmCbkrlHRjVTBXMso7U2zGcrTfBFb96wiTQ2Tz3w6jGsz7V2ATIbHCvAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:51:06.556373Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.4088","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ca2552e76c9f03c217d0032d3c1a63e7abc5162182f15a70f018a6e3576a08d","sha256:3737438223610d84fc0852b1193e4c7f33547e3a62b8e3d938e4fa8fb4d96959"],"state_sha256":"ce143d9f50d72e647d3af20a35b74bc17f8442853155f2608c396c2fced7a51b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BVJlA/qc85OvrhFY8Y8cBDHxoPiSUM6NVmbZkHYuCtiAraXcgxhxrPm+dnakYK3YMBdwKHOi7PjTlAOf5Jt+CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T08:37:02.560755Z","bundle_sha256":"daa6804b0394aa4511c46327a4f3081568cbf11ef68382beed42001341b20f8a"}}