{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:2N37SB2VBA4XNKMV6GS35ZLLZI","short_pith_number":"pith:2N37SB2V","canonical_record":{"source":{"id":"1004.3600","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-04-21T00:04:07Z","cross_cats_sorted":[],"title_canon_sha256":"0db2d6cc099584e3f420f67180b9976535987fc36cfc1238d820be4b57b9102e","abstract_canon_sha256":"7707b856ae4f37a63362339b9260dd43172f5c2844e5b219aac8f491ae694206"},"schema_version":"1.0"},"canonical_sha256":"d377f90755083976a995f1a5bee56bca36d5fc5b5a8ac30047afa9f3434ab92f","source":{"kind":"arxiv","id":"1004.3600","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.3600","created_at":"2026-05-18T02:07:55Z"},{"alias_kind":"arxiv_version","alias_value":"1004.3600v1","created_at":"2026-05-18T02:07:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.3600","created_at":"2026-05-18T02:07:55Z"},{"alias_kind":"pith_short_12","alias_value":"2N37SB2VBA4X","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2N37SB2VBA4XNKMV","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2N37SB2V","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:2N37SB2VBA4XNKMV6GS35ZLLZI","target":"record","payload":{"canonical_record":{"source":{"id":"1004.3600","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-04-21T00:04:07Z","cross_cats_sorted":[],"title_canon_sha256":"0db2d6cc099584e3f420f67180b9976535987fc36cfc1238d820be4b57b9102e","abstract_canon_sha256":"7707b856ae4f37a63362339b9260dd43172f5c2844e5b219aac8f491ae694206"},"schema_version":"1.0"},"canonical_sha256":"d377f90755083976a995f1a5bee56bca36d5fc5b5a8ac30047afa9f3434ab92f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:07:55.876418Z","signature_b64":"OUaMLQ9hY5NiPr0npVEoMi+ABQ5jeFIG58jRTPb7GxXESeqByyu9bWAHIlf46/hzokyzCFV4VN/DJXt4zzLTBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d377f90755083976a995f1a5bee56bca36d5fc5b5a8ac30047afa9f3434ab92f","last_reissued_at":"2026-05-18T02:07:55.875775Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:07:55.875775Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1004.3600","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":"2026-05-18T02:07:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FZWwsHbq7K1mNtvpCFltR/xroxoIdPNH0PsZ0vp9o2Z2+LdTdbHSvg4T1hXbbGcHTzekT0CRW0PnY7NsDlSeDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T16:35:16.701606Z"},"content_sha256":"632c972d316f931f13d27edfb9e6b53a2d10ae7b80931ab2a46b8ce8c6034f3e","schema_version":"1.0","event_id":"sha256:632c972d316f931f13d27edfb9e6b53a2d10ae7b80931ab2a46b8ce8c6034f3e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:2N37SB2VBA4XNKMV6GS35ZLLZI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The peculiar nova V1309 Sco/Nova Sco 2008: A candidate twin of V838 Mon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Elena Mason, George Preston, Marcos Diaz, Robert E. Williams, Thomas Bensby","submitted_at":"2010-04-21T00:04:07Z","abstract_excerpt":"Nova Scorpii 2008 was the target of our Directory Discretionary Time proposal at VLT+UVES in order to study the evolution, origin and abundances of the heavy-element absorption system recently discovered in 80% of classical novae in outburst. The early decline of Nova Scorpii 2008 was monitored with high resolution echelle spectroscopy at 5 different epochs. The analysis of the absorption and the emission lines show many unusual characteristics. Nova Scorpii 2008 is confirmed to differ from a common Classical Nova as well as a Symbiotic Recurrent Nova, and it shows characteristics which are co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.3600","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":""},"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":"2026-05-18T02:07:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qKkGcKuSKFKjSO0H2v5G6+rcGxFbDBM5J54LpccvvzlSMR5xROmOClkB0XeHXjErm/xK9e8AnnG90r63tkKjDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T16:35:16.701962Z"},"content_sha256":"6603f4d58e2f5f2a407d7ab08ba260c2f74a23e90b0f6e71fee9bbf65481d738","schema_version":"1.0","event_id":"sha256:6603f4d58e2f5f2a407d7ab08ba260c2f74a23e90b0f6e71fee9bbf65481d738"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2N37SB2VBA4XNKMV6GS35ZLLZI/bundle.json","state_url":"https://pith.science/pith/2N37SB2VBA4XNKMV6GS35ZLLZI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2N37SB2VBA4XNKMV6GS35ZLLZI/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":"2026-05-20T16:35:16Z","links":{"resolver":"https://pith.science/pith/2N37SB2VBA4XNKMV6GS35ZLLZI","bundle":"https://pith.science/pith/2N37SB2VBA4XNKMV6GS35ZLLZI/bundle.json","state":"https://pith.science/pith/2N37SB2VBA4XNKMV6GS35ZLLZI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2N37SB2VBA4XNKMV6GS35ZLLZI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:2N37SB2VBA4XNKMV6GS35ZLLZI","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":"7707b856ae4f37a63362339b9260dd43172f5c2844e5b219aac8f491ae694206","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-04-21T00:04:07Z","title_canon_sha256":"0db2d6cc099584e3f420f67180b9976535987fc36cfc1238d820be4b57b9102e"},"schema_version":"1.0","source":{"id":"1004.3600","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.3600","created_at":"2026-05-18T02:07:55Z"},{"alias_kind":"arxiv_version","alias_value":"1004.3600v1","created_at":"2026-05-18T02:07:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.3600","created_at":"2026-05-18T02:07:55Z"},{"alias_kind":"pith_short_12","alias_value":"2N37SB2VBA4X","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2N37SB2VBA4XNKMV","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2N37SB2V","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:6603f4d58e2f5f2a407d7ab08ba260c2f74a23e90b0f6e71fee9bbf65481d738","target":"graph","created_at":"2026-05-18T02:07:55Z","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":"Nova Scorpii 2008 was the target of our Directory Discretionary Time proposal at VLT+UVES in order to study the evolution, origin and abundances of the heavy-element absorption system recently discovered in 80% of classical novae in outburst. The early decline of Nova Scorpii 2008 was monitored with high resolution echelle spectroscopy at 5 different epochs. The analysis of the absorption and the emission lines show many unusual characteristics. Nova Scorpii 2008 is confirmed to differ from a common Classical Nova as well as a Symbiotic Recurrent Nova, and it shows characteristics which are co","authors_text":"Elena Mason, George Preston, Marcos Diaz, Robert E. Williams, Thomas Bensby","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-04-21T00:04:07Z","title":"The peculiar nova V1309 Sco/Nova Sco 2008: A candidate twin of V838 Mon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.3600","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":"sha256:632c972d316f931f13d27edfb9e6b53a2d10ae7b80931ab2a46b8ce8c6034f3e","target":"record","created_at":"2026-05-18T02:07:55Z","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":"7707b856ae4f37a63362339b9260dd43172f5c2844e5b219aac8f491ae694206","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-04-21T00:04:07Z","title_canon_sha256":"0db2d6cc099584e3f420f67180b9976535987fc36cfc1238d820be4b57b9102e"},"schema_version":"1.0","source":{"id":"1004.3600","kind":"arxiv","version":1}},"canonical_sha256":"d377f90755083976a995f1a5bee56bca36d5fc5b5a8ac30047afa9f3434ab92f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d377f90755083976a995f1a5bee56bca36d5fc5b5a8ac30047afa9f3434ab92f","first_computed_at":"2026-05-18T02:07:55.875775Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:55.875775Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OUaMLQ9hY5NiPr0npVEoMi+ABQ5jeFIG58jRTPb7GxXESeqByyu9bWAHIlf46/hzokyzCFV4VN/DJXt4zzLTBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:55.876418Z","signed_message":"canonical_sha256_bytes"},"source_id":"1004.3600","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:632c972d316f931f13d27edfb9e6b53a2d10ae7b80931ab2a46b8ce8c6034f3e","sha256:6603f4d58e2f5f2a407d7ab08ba260c2f74a23e90b0f6e71fee9bbf65481d738"],"state_sha256":"37ea81fa8050f7d6a74ef71e87664a73d8b1eedf84692bb288804caf63bd3005"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GQ3teVG96Q5K1PWzGci+RKFx51rjbtt1/POTOMlVNpPnWcirjOrd+hRoABlXeyJDqeSaNxCZ7xD7/7vtPsAGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T16:35:16.704092Z","bundle_sha256":"493a579dd742afc39e7b87897160efde19b96c7b7083bfdd1b5431f9647d2a17"}}