{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:A37KMTRYOQ5GSKLVKQV36PC73A","short_pith_number":"pith:A37KMTRY","canonical_record":{"source":{"id":"2004.01488","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-04-03T11:57:33Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"dea33bfdbff09737cddafac57c192256f3240cd8b99ff9a3d116088d41695b37","abstract_canon_sha256":"6d44b3decc48298ed606100a5925fc3c2ad1fbf759b3f27bfab3076aa53ec05e"},"schema_version":"1.0"},"canonical_sha256":"06fea64e38743a692975542bbf3c5fd80ddaa719cdcf29c7fe16a2128251c64b","source":{"kind":"arxiv","id":"2004.01488","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.01488","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"arxiv_version","alias_value":"2004.01488v1","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.01488","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"pith_short_12","alias_value":"A37KMTRYOQ5G","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"pith_short_16","alias_value":"A37KMTRYOQ5GSKLV","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"pith_short_8","alias_value":"A37KMTRY","created_at":"2026-07-05T01:15:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:A37KMTRYOQ5GSKLVKQV36PC73A","target":"record","payload":{"canonical_record":{"source":{"id":"2004.01488","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-04-03T11:57:33Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"dea33bfdbff09737cddafac57c192256f3240cd8b99ff9a3d116088d41695b37","abstract_canon_sha256":"6d44b3decc48298ed606100a5925fc3c2ad1fbf759b3f27bfab3076aa53ec05e"},"schema_version":"1.0"},"canonical_sha256":"06fea64e38743a692975542bbf3c5fd80ddaa719cdcf29c7fe16a2128251c64b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:15:15.651730Z","signature_b64":"sOYqqCUzfnBV1GRPppRlD5iCyMnkTedjrz+esZckSpcFvq+mO+nK7yoJAIu0VaNvfsBVfbsX2dwiu5x81miKAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"06fea64e38743a692975542bbf3c5fd80ddaa719cdcf29c7fe16a2128251c64b","last_reissued_at":"2026-07-05T01:15:15.651208Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:15:15.651208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.01488","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":"2026-07-05T01:15:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qi5FFdi7RiPQ5tJpR3moaoCbGNkG4ET4zkwy/bZab/f/TEFAD/mfME960wClsEu46+E37LUulYKLCXr/+q3eCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T04:28:42.881847Z"},"content_sha256":"929cfa1d61609b636823d0e31abd3d98b782a1fcef5c685ff0c8422721e36b33","schema_version":"1.0","event_id":"sha256:929cfa1d61609b636823d0e31abd3d98b782a1fcef5c685ff0c8422721e36b33"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:A37KMTRYOQ5GSKLVKQV36PC73A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SiO maser astrometry of the red transient V838 Monocerotis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Andreas Brunthaler, Gisela N. Ortiz-Leon, Karl M. Menten, Mark J. Reid, Romuald Tylenda, Tomasz Kaminski","submitted_at":"2020-04-03T11:57:33Z","abstract_excerpt":"We present multi-epoch observations with the VLBA of SiO maser emission in the v=1, J=1-0 transition at 43 GHz from the remnant of the red nova V838 Mon. We model the positions of maser spots to derive a parallax of 0.166+/-0.060 mas. Combining this parallax with other distance information results in a distance of 5.6+/-0.5 kpc, which agrees with an independent geometric distance of 6.1+/-0.6 kpc from modeling polarimetry images of V838 Mon's light echo. Combining these results, and including a weakly constraining Gaia DR2 parallax, yields a best estimate of distance of 5.9+/-0.4 kpc. The mase"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.01488","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/2004.01488/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":"2026-07-05T01:15:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7ZYBbeV2P5iBK+kzwm1h3V7Zh2Z3Nh7mtlS/sBfUqGvniHPIP/gGfG3UqLJ+ZFZlj7m3bRamlhi7qoXsKaUECg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T04:28:42.882359Z"},"content_sha256":"7b8c834d127479003afaf5eeebbc19e8c6e10420902d3612bdd3918ceddd8bf8","schema_version":"1.0","event_id":"sha256:7b8c834d127479003afaf5eeebbc19e8c6e10420902d3612bdd3918ceddd8bf8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A37KMTRYOQ5GSKLVKQV36PC73A/bundle.json","state_url":"https://pith.science/pith/A37KMTRYOQ5GSKLVKQV36PC73A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A37KMTRYOQ5GSKLVKQV36PC73A/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":"2026-08-04T04:28:42Z","links":{"resolver":"https://pith.science/pith/A37KMTRYOQ5GSKLVKQV36PC73A","bundle":"https://pith.science/pith/A37KMTRYOQ5GSKLVKQV36PC73A/bundle.json","state":"https://pith.science/pith/A37KMTRYOQ5GSKLVKQV36PC73A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A37KMTRYOQ5GSKLVKQV36PC73A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:A37KMTRYOQ5GSKLVKQV36PC73A","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":"6d44b3decc48298ed606100a5925fc3c2ad1fbf759b3f27bfab3076aa53ec05e","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-04-03T11:57:33Z","title_canon_sha256":"dea33bfdbff09737cddafac57c192256f3240cd8b99ff9a3d116088d41695b37"},"schema_version":"1.0","source":{"id":"2004.01488","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.01488","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"arxiv_version","alias_value":"2004.01488v1","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.01488","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"pith_short_12","alias_value":"A37KMTRYOQ5G","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"pith_short_16","alias_value":"A37KMTRYOQ5GSKLV","created_at":"2026-07-05T01:15:15Z"},{"alias_kind":"pith_short_8","alias_value":"A37KMTRY","created_at":"2026-07-05T01:15:15Z"}],"graph_snapshots":[{"event_id":"sha256:7b8c834d127479003afaf5eeebbc19e8c6e10420902d3612bdd3918ceddd8bf8","target":"graph","created_at":"2026-07-05T01:15:15Z","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/2004.01488/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present multi-epoch observations with the VLBA of SiO maser emission in the v=1, J=1-0 transition at 43 GHz from the remnant of the red nova V838 Mon. We model the positions of maser spots to derive a parallax of 0.166+/-0.060 mas. Combining this parallax with other distance information results in a distance of 5.6+/-0.5 kpc, which agrees with an independent geometric distance of 6.1+/-0.6 kpc from modeling polarimetry images of V838 Mon's light echo. Combining these results, and including a weakly constraining Gaia DR2 parallax, yields a best estimate of distance of 5.9+/-0.4 kpc. The mase","authors_text":"Andreas Brunthaler, Gisela N. Ortiz-Leon, Karl M. Menten, Mark J. Reid, Romuald Tylenda, Tomasz Kaminski","cross_cats":["astro-ph.GA","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-04-03T11:57:33Z","title":"SiO maser astrometry of the red transient V838 Monocerotis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.01488","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":"sha256:929cfa1d61609b636823d0e31abd3d98b782a1fcef5c685ff0c8422721e36b33","target":"record","created_at":"2026-07-05T01:15:15Z","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":"6d44b3decc48298ed606100a5925fc3c2ad1fbf759b3f27bfab3076aa53ec05e","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-04-03T11:57:33Z","title_canon_sha256":"dea33bfdbff09737cddafac57c192256f3240cd8b99ff9a3d116088d41695b37"},"schema_version":"1.0","source":{"id":"2004.01488","kind":"arxiv","version":1}},"canonical_sha256":"06fea64e38743a692975542bbf3c5fd80ddaa719cdcf29c7fe16a2128251c64b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"06fea64e38743a692975542bbf3c5fd80ddaa719cdcf29c7fe16a2128251c64b","first_computed_at":"2026-07-05T01:15:15.651208Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:15:15.651208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sOYqqCUzfnBV1GRPppRlD5iCyMnkTedjrz+esZckSpcFvq+mO+nK7yoJAIu0VaNvfsBVfbsX2dwiu5x81miKAw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:15:15.651730Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.01488","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:929cfa1d61609b636823d0e31abd3d98b782a1fcef5c685ff0c8422721e36b33","sha256:7b8c834d127479003afaf5eeebbc19e8c6e10420902d3612bdd3918ceddd8bf8"],"state_sha256":"2027a63405d42f9d059019aa8a0c426a73ab9c1c87cae3d2ba17c4a503d01687"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f2qq+rF+VYqB9/dqw0FQuAha5egUXTT8b+yHHq0UOl1jvPd+/NXlZNr/GxNX5GrLBJeCHiwLhNdOcpuuHMIuDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T04:28:42.886124Z","bundle_sha256":"da98b77dc4a48d96f2434f7a2dd5ab852894e8287708ecfe1919557228bb7972"}}