{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:HGVFP2Y5SKCCTNCP6HV5CH6SCL","short_pith_number":"pith:HGVFP2Y5","canonical_record":{"source":{"id":"1012.4445","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T19:16:41Z","cross_cats_sorted":[],"title_canon_sha256":"0f76fd310158ad990d573759f23a1266f8a2be26e245e49ee2a17f39ff4dd5a0","abstract_canon_sha256":"2cec84ac3a79bc5d3ccfd442d59751d859403f9d2c4d5f20867f4c40a2aad0ff"},"schema_version":"1.0"},"canonical_sha256":"39aa57eb1d928429b44ff1ebd11fd212d1b43db81e914a21769dd82e78c33250","source":{"kind":"arxiv","id":"1012.4445","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.4445","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"arxiv_version","alias_value":"1012.4445v1","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.4445","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"pith_short_12","alias_value":"HGVFP2Y5SKCC","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"HGVFP2Y5SKCCTNCP","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"HGVFP2Y5","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:HGVFP2Y5SKCCTNCP6HV5CH6SCL","target":"record","payload":{"canonical_record":{"source":{"id":"1012.4445","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T19:16:41Z","cross_cats_sorted":[],"title_canon_sha256":"0f76fd310158ad990d573759f23a1266f8a2be26e245e49ee2a17f39ff4dd5a0","abstract_canon_sha256":"2cec84ac3a79bc5d3ccfd442d59751d859403f9d2c4d5f20867f4c40a2aad0ff"},"schema_version":"1.0"},"canonical_sha256":"39aa57eb1d928429b44ff1ebd11fd212d1b43db81e914a21769dd82e78c33250","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:21.737673Z","signature_b64":"UdmSM7S2WYv34KOfV+NZpVRquAB6W+/7/LV81HfUtHwX9BmK4TmDBInVYkqtLrY+jJnd4kbvuRk/TAbQ/9JYBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"39aa57eb1d928429b44ff1ebd11fd212d1b43db81e914a21769dd82e78c33250","last_reissued_at":"2026-05-18T02:04:21.736767Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:21.736767Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.4445","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":"2026-05-18T02:04:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yp0As9+wGUt6f207gNKCMa5pqxCJFCpJsEGdiCFDl+Iq/VI+VJEyGfOEd2qDiQSHFwOug7ygFQPCRFWPTpiVAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:29:57.737886Z"},"content_sha256":"01eda53b7f9fe091838ba6bef42dbc0d49d778c45a9d2510a5b6aa34f6675db1","schema_version":"1.0","event_id":"sha256:01eda53b7f9fe091838ba6bef42dbc0d49d778c45a9d2510a5b6aa34f6675db1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:HGVFP2Y5SKCCTNCP6HV5CH6SCL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of the first tau Sco analogues: HD 66665 and HD 63425","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D. L. Massa, G. A. Wade, R. Ignace, the MiMeS Collaboration, V. Petit, W. L. F. Marcolino","submitted_at":"2010-12-20T19:16:41Z","abstract_excerpt":"The B0.2 V magnetic star tau Sco stands out from the larger population of massive OB stars due to its high X-ray activity, peculiar wind diagnostics and highly complex magnetic field. This paper presents the discovery of the first two tau Sco analogues - HD 66665 and HD 63425, identified by the striking similarity of their UV spectra to that of tau Sco. ESPaDOnS spectropolarimetric observations were secured by the Magnetism in Massive Stars CFHT Large Program, in order to characterize the stellar and magnetic properties of these stars. CMFGEN modelling of optical ESPaDOnS spectra and archived "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.4445","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":"2026-05-18T02:04:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KQAHvmGQky6B2YlVVvTs1TQAMy5emnoIdKV6rl2rbdNr/I/BvbxcYfrvMdRSKqj5B8OXh2LFMlZPzZsj0Nj4Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:29:57.738521Z"},"content_sha256":"4ee36a3d83966193d423cbe94862db6dc40947c09ab2588390133e5b73eec15e","schema_version":"1.0","event_id":"sha256:4ee36a3d83966193d423cbe94862db6dc40947c09ab2588390133e5b73eec15e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HGVFP2Y5SKCCTNCP6HV5CH6SCL/bundle.json","state_url":"https://pith.science/pith/HGVFP2Y5SKCCTNCP6HV5CH6SCL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HGVFP2Y5SKCCTNCP6HV5CH6SCL/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":"2026-05-25T18:29:57Z","links":{"resolver":"https://pith.science/pith/HGVFP2Y5SKCCTNCP6HV5CH6SCL","bundle":"https://pith.science/pith/HGVFP2Y5SKCCTNCP6HV5CH6SCL/bundle.json","state":"https://pith.science/pith/HGVFP2Y5SKCCTNCP6HV5CH6SCL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HGVFP2Y5SKCCTNCP6HV5CH6SCL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:HGVFP2Y5SKCCTNCP6HV5CH6SCL","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":"2cec84ac3a79bc5d3ccfd442d59751d859403f9d2c4d5f20867f4c40a2aad0ff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T19:16:41Z","title_canon_sha256":"0f76fd310158ad990d573759f23a1266f8a2be26e245e49ee2a17f39ff4dd5a0"},"schema_version":"1.0","source":{"id":"1012.4445","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.4445","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"arxiv_version","alias_value":"1012.4445v1","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.4445","created_at":"2026-05-18T02:04:21Z"},{"alias_kind":"pith_short_12","alias_value":"HGVFP2Y5SKCC","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"HGVFP2Y5SKCCTNCP","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"HGVFP2Y5","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:4ee36a3d83966193d423cbe94862db6dc40947c09ab2588390133e5b73eec15e","target":"graph","created_at":"2026-05-18T02:04:21Z","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":"The B0.2 V magnetic star tau Sco stands out from the larger population of massive OB stars due to its high X-ray activity, peculiar wind diagnostics and highly complex magnetic field. This paper presents the discovery of the first two tau Sco analogues - HD 66665 and HD 63425, identified by the striking similarity of their UV spectra to that of tau Sco. ESPaDOnS spectropolarimetric observations were secured by the Magnetism in Massive Stars CFHT Large Program, in order to characterize the stellar and magnetic properties of these stars. CMFGEN modelling of optical ESPaDOnS spectra and archived ","authors_text":"D. L. Massa, G. A. Wade, R. Ignace, the MiMeS Collaboration, V. Petit, W. L. F. Marcolino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T19:16:41Z","title":"Discovery of the first tau Sco analogues: HD 66665 and HD 63425"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.4445","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":"sha256:01eda53b7f9fe091838ba6bef42dbc0d49d778c45a9d2510a5b6aa34f6675db1","target":"record","created_at":"2026-05-18T02:04:21Z","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":"2cec84ac3a79bc5d3ccfd442d59751d859403f9d2c4d5f20867f4c40a2aad0ff","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-20T19:16:41Z","title_canon_sha256":"0f76fd310158ad990d573759f23a1266f8a2be26e245e49ee2a17f39ff4dd5a0"},"schema_version":"1.0","source":{"id":"1012.4445","kind":"arxiv","version":1}},"canonical_sha256":"39aa57eb1d928429b44ff1ebd11fd212d1b43db81e914a21769dd82e78c33250","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"39aa57eb1d928429b44ff1ebd11fd212d1b43db81e914a21769dd82e78c33250","first_computed_at":"2026-05-18T02:04:21.736767Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:21.736767Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UdmSM7S2WYv34KOfV+NZpVRquAB6W+/7/LV81HfUtHwX9BmK4TmDBInVYkqtLrY+jJnd4kbvuRk/TAbQ/9JYBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:21.737673Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.4445","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01eda53b7f9fe091838ba6bef42dbc0d49d778c45a9d2510a5b6aa34f6675db1","sha256:4ee36a3d83966193d423cbe94862db6dc40947c09ab2588390133e5b73eec15e"],"state_sha256":"6cc3321d88dc87a3df774da41dfa6b1af1b7d3e10f919c90ec46e06b72db34b2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rlvQm8Lhtsm/pNN/o6hF0B/c3ljQJTx6gBEclBFe/fHQ+3wFParIW/J7ly4ELep+amTrGscLJbrRn/210/SLDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:29:57.742038Z","bundle_sha256":"56f13c23f1485cb8ecf19159bf432371604ab7c0b4c43762e2812b52582291af"}}