{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:N24OJL5CJVE5Z3O5QMDUISE7WB","short_pith_number":"pith:N24OJL5C","canonical_record":{"source":{"id":"1101.1960","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-10T21:00:20Z","cross_cats_sorted":[],"title_canon_sha256":"90114ea147650252466c861a53c615566f2fb563d4cc9c5aa78b21635b19bc49","abstract_canon_sha256":"ac1cde57797ea133f86e1adf78cbd0de3df944e80ead406ff0967ce9644be5b0"},"schema_version":"1.0"},"canonical_sha256":"6eb8e4afa24d49dceddd830744489fb07201be48a9d1d2be3dd59ae07a3a733e","source":{"kind":"arxiv","id":"1101.1960","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.1960","created_at":"2026-05-18T02:03:43Z"},{"alias_kind":"arxiv_version","alias_value":"1101.1960v1","created_at":"2026-05-18T02:03:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.1960","created_at":"2026-05-18T02:03:43Z"},{"alias_kind":"pith_short_12","alias_value":"N24OJL5CJVE5","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"N24OJL5CJVE5Z3O5","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"N24OJL5C","created_at":"2026-05-18T12:26:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:N24OJL5CJVE5Z3O5QMDUISE7WB","target":"record","payload":{"canonical_record":{"source":{"id":"1101.1960","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-10T21:00:20Z","cross_cats_sorted":[],"title_canon_sha256":"90114ea147650252466c861a53c615566f2fb563d4cc9c5aa78b21635b19bc49","abstract_canon_sha256":"ac1cde57797ea133f86e1adf78cbd0de3df944e80ead406ff0967ce9644be5b0"},"schema_version":"1.0"},"canonical_sha256":"6eb8e4afa24d49dceddd830744489fb07201be48a9d1d2be3dd59ae07a3a733e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:43.309675Z","signature_b64":"wAhinbQKp2b8DdoTVcqvtaKfRno3h0k2btchmvPts8HqAJjg3KrkYdhUa+OMSHVZxo0CUnMYGjPTcD0xpo8VDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6eb8e4afa24d49dceddd830744489fb07201be48a9d1d2be3dd59ae07a3a733e","last_reissued_at":"2026-05-18T02:03:43.309124Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:43.309124Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.1960","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":"2026-05-18T02:03:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5B4ON+pMUplgOtuW+/vnLHo6uWNVJAhBL8aucc7o6015pbYn3SguxO6KZF6173dlE/y6nKmojjW9Q49mq3pKCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:56:52.830070Z"},"content_sha256":"87547be6327f2c9b92fd3d2e1f6944297e2dfacc9c3cd77afd11b551f76868b3","schema_version":"1.0","event_id":"sha256:87547be6327f2c9b92fd3d2e1f6944297e2dfacc9c3cd77afd11b551f76868b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:N24OJL5CJVE5Z3O5QMDUISE7WB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Fields in Evolved Stars: Imaging the Polarized Emission of High-Frequency SiO Masers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"E.M.L. Humphreys, R. Franco-Hern\\'andez, W.H.T. Vlemmings","submitted_at":"2011-01-10T21:00:20Z","abstract_excerpt":"We present Submillimeter Array observations of high frequency SiO masers around the supergiant VX Sgr and the semi-regular variable star W Hya. The J=5-4, v=1 28SiO and v=0 29SiO masers of VX Sgr are shown to be highly linearly polarized with a polarization from ~5-60%. Assuming the continuum emission peaks at the stellar position, the masers are found within ~60 mas of the star, corresponding to ~100 AU at a distance of 1.57 kpc. The linear polarization vectors are consistent with a large scale magnetic field, with position and inclination angles similar to that of the dipole magnetic field i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.1960","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":"2026-05-18T02:03:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tAMmyCgWLhy18HPaIWy3AhFLWzkfj5pqy8ExeieZW7UgKtQQThwbjh1Lf0Q9bK1xPzOPpouPO7gzzhxsXbQODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:56:52.830423Z"},"content_sha256":"40f127f9e078b4b6d9ffb686b5e34c52687fdcdadaa9027bcac3132a909e5cf5","schema_version":"1.0","event_id":"sha256:40f127f9e078b4b6d9ffb686b5e34c52687fdcdadaa9027bcac3132a909e5cf5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N24OJL5CJVE5Z3O5QMDUISE7WB/bundle.json","state_url":"https://pith.science/pith/N24OJL5CJVE5Z3O5QMDUISE7WB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N24OJL5CJVE5Z3O5QMDUISE7WB/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":"2026-06-01T19:56:52Z","links":{"resolver":"https://pith.science/pith/N24OJL5CJVE5Z3O5QMDUISE7WB","bundle":"https://pith.science/pith/N24OJL5CJVE5Z3O5QMDUISE7WB/bundle.json","state":"https://pith.science/pith/N24OJL5CJVE5Z3O5QMDUISE7WB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N24OJL5CJVE5Z3O5QMDUISE7WB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:N24OJL5CJVE5Z3O5QMDUISE7WB","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":"ac1cde57797ea133f86e1adf78cbd0de3df944e80ead406ff0967ce9644be5b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-10T21:00:20Z","title_canon_sha256":"90114ea147650252466c861a53c615566f2fb563d4cc9c5aa78b21635b19bc49"},"schema_version":"1.0","source":{"id":"1101.1960","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.1960","created_at":"2026-05-18T02:03:43Z"},{"alias_kind":"arxiv_version","alias_value":"1101.1960v1","created_at":"2026-05-18T02:03:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.1960","created_at":"2026-05-18T02:03:43Z"},{"alias_kind":"pith_short_12","alias_value":"N24OJL5CJVE5","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"N24OJL5CJVE5Z3O5","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"N24OJL5C","created_at":"2026-05-18T12:26:37Z"}],"graph_snapshots":[{"event_id":"sha256:40f127f9e078b4b6d9ffb686b5e34c52687fdcdadaa9027bcac3132a909e5cf5","target":"graph","created_at":"2026-05-18T02:03:43Z","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":"We present Submillimeter Array observations of high frequency SiO masers around the supergiant VX Sgr and the semi-regular variable star W Hya. The J=5-4, v=1 28SiO and v=0 29SiO masers of VX Sgr are shown to be highly linearly polarized with a polarization from ~5-60%. Assuming the continuum emission peaks at the stellar position, the masers are found within ~60 mas of the star, corresponding to ~100 AU at a distance of 1.57 kpc. The linear polarization vectors are consistent with a large scale magnetic field, with position and inclination angles similar to that of the dipole magnetic field i","authors_text":"E.M.L. Humphreys, R. Franco-Hern\\'andez, W.H.T. Vlemmings","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-10T21:00:20Z","title":"Magnetic Fields in Evolved Stars: Imaging the Polarized Emission of High-Frequency SiO Masers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.1960","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":"sha256:87547be6327f2c9b92fd3d2e1f6944297e2dfacc9c3cd77afd11b551f76868b3","target":"record","created_at":"2026-05-18T02:03:43Z","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":"ac1cde57797ea133f86e1adf78cbd0de3df944e80ead406ff0967ce9644be5b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-10T21:00:20Z","title_canon_sha256":"90114ea147650252466c861a53c615566f2fb563d4cc9c5aa78b21635b19bc49"},"schema_version":"1.0","source":{"id":"1101.1960","kind":"arxiv","version":1}},"canonical_sha256":"6eb8e4afa24d49dceddd830744489fb07201be48a9d1d2be3dd59ae07a3a733e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6eb8e4afa24d49dceddd830744489fb07201be48a9d1d2be3dd59ae07a3a733e","first_computed_at":"2026-05-18T02:03:43.309124Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:43.309124Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wAhinbQKp2b8DdoTVcqvtaKfRno3h0k2btchmvPts8HqAJjg3KrkYdhUa+OMSHVZxo0CUnMYGjPTcD0xpo8VDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:43.309675Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.1960","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87547be6327f2c9b92fd3d2e1f6944297e2dfacc9c3cd77afd11b551f76868b3","sha256:40f127f9e078b4b6d9ffb686b5e34c52687fdcdadaa9027bcac3132a909e5cf5"],"state_sha256":"50b6428f58c7b6c35c939ec41e6538e25d9e3419bed04257f6037daba835d43f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xxVT0G1LVkgxz5GM0rw2+6A9Ls0r1okqYV4LdYVf2FA9yDhl6JB1csru+6RhUwfXCJpxgDj/P+krcSgxbCWwCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T19:56:52.832462Z","bundle_sha256":"71836847d40dcfdb406cf6ac2e28bd3b1ce68dbf9104f32fc01078e74c593aa5"}}