{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:X3VZGOGUHWUENLU2KAVZEE4JYW","short_pith_number":"pith:X3VZGOGU","canonical_record":{"source":{"id":"1209.5937","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-26T13:39:34Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"title_canon_sha256":"9d329f31cd4e77720b0d471ea99539c6215e55ffc387f63086a87bf036775ee6","abstract_canon_sha256":"d6c99ee56ded677902cb7234462618131bf470d149b6bbf6877f169bbd55f9cc"},"schema_version":"1.0"},"canonical_sha256":"beeb9338d43da846ae9a502b921389c58a5277c80a4cd2132403c1615ff17476","source":{"kind":"arxiv","id":"1209.5937","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.5937","created_at":"2026-05-18T03:44:45Z"},{"alias_kind":"arxiv_version","alias_value":"1209.5937v1","created_at":"2026-05-18T03:44:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.5937","created_at":"2026-05-18T03:44:45Z"},{"alias_kind":"pith_short_12","alias_value":"X3VZGOGUHWUE","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"X3VZGOGUHWUENLU2","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"X3VZGOGU","created_at":"2026-05-18T12:27:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:X3VZGOGUHWUENLU2KAVZEE4JYW","target":"record","payload":{"canonical_record":{"source":{"id":"1209.5937","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-26T13:39:34Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"title_canon_sha256":"9d329f31cd4e77720b0d471ea99539c6215e55ffc387f63086a87bf036775ee6","abstract_canon_sha256":"d6c99ee56ded677902cb7234462618131bf470d149b6bbf6877f169bbd55f9cc"},"schema_version":"1.0"},"canonical_sha256":"beeb9338d43da846ae9a502b921389c58a5277c80a4cd2132403c1615ff17476","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:44:45.858621Z","signature_b64":"0VbyHLPQAv9YZ6i8Ao//5ZK8k1+KRlZqJKYsHuXyfK/ys+Ko6OJ8Y7qADyol6eVKtGAGfxLgUWoc1AszbyR3Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"beeb9338d43da846ae9a502b921389c58a5277c80a4cd2132403c1615ff17476","last_reissued_at":"2026-05-18T03:44:45.857893Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:44:45.857893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.5937","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":"2026-05-18T03:44:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WUKCpWDid8jIds8P5ceEc9D6aifr6+TiBOoDSYgmY6ST1fyjCXyGuTpvbGm4rlHRlXu7ldhBYZUWnvBI28rLDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T15:14:41.679105Z"},"content_sha256":"d1ab7b6292c9df5c18749b57e469abcce41f78ec0f0971f59f7a1df4805cab5a","schema_version":"1.0","event_id":"sha256:d1ab7b6292c9df5c18749b57e469abcce41f78ec0f0971f59f7a1df4805cab5a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:X3VZGOGUHWUENLU2KAVZEE4JYW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Linear Spectropolarimetry and the Circumstellar Media of Young and Massive Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Jorick S. Vink (Armagh Observatory)","submitted_at":"2012-09-26T13:39:34Z","abstract_excerpt":"Linear spectropolarimetry is a powerful tool to probe circumstellar structures on spatial scales that cannot yet be achieved through direct imaging. In this review I discuss the role that emission-line polarimetry can play in constraining geometrical and physical properties of a wide range of circumstellar environments, varying from the accretion disks around pre-main sequence T Tauri and Herbig Ae/Be stars, to the issue of stellar wind clumping, and the aspherical outflows from the massive star progenitors of supernovae and long gamma-ray bursts at low metallicity."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.5937","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":"2026-05-18T03:44:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d3iB0vUaVxhBkbrNqM3zjIGDgO0dqZS32Nkf54w/mm/AfiUY/60eTFm36qT8Nbg2+lHp1pqOQNQDx6wm9UcJDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T15:14:41.679464Z"},"content_sha256":"dbde9845fe92940525672961c447c893daccc842d9079ef2f598aa6b2b20d046","schema_version":"1.0","event_id":"sha256:dbde9845fe92940525672961c447c893daccc842d9079ef2f598aa6b2b20d046"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X3VZGOGUHWUENLU2KAVZEE4JYW/bundle.json","state_url":"https://pith.science/pith/X3VZGOGUHWUENLU2KAVZEE4JYW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X3VZGOGUHWUENLU2KAVZEE4JYW/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":"2026-05-20T15:14:41Z","links":{"resolver":"https://pith.science/pith/X3VZGOGUHWUENLU2KAVZEE4JYW","bundle":"https://pith.science/pith/X3VZGOGUHWUENLU2KAVZEE4JYW/bundle.json","state":"https://pith.science/pith/X3VZGOGUHWUENLU2KAVZEE4JYW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X3VZGOGUHWUENLU2KAVZEE4JYW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:X3VZGOGUHWUENLU2KAVZEE4JYW","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":"d6c99ee56ded677902cb7234462618131bf470d149b6bbf6877f169bbd55f9cc","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-26T13:39:34Z","title_canon_sha256":"9d329f31cd4e77720b0d471ea99539c6215e55ffc387f63086a87bf036775ee6"},"schema_version":"1.0","source":{"id":"1209.5937","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.5937","created_at":"2026-05-18T03:44:45Z"},{"alias_kind":"arxiv_version","alias_value":"1209.5937v1","created_at":"2026-05-18T03:44:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.5937","created_at":"2026-05-18T03:44:45Z"},{"alias_kind":"pith_short_12","alias_value":"X3VZGOGUHWUE","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"X3VZGOGUHWUENLU2","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"X3VZGOGU","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:dbde9845fe92940525672961c447c893daccc842d9079ef2f598aa6b2b20d046","target":"graph","created_at":"2026-05-18T03:44:45Z","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":"Linear spectropolarimetry is a powerful tool to probe circumstellar structures on spatial scales that cannot yet be achieved through direct imaging. In this review I discuss the role that emission-line polarimetry can play in constraining geometrical and physical properties of a wide range of circumstellar environments, varying from the accretion disks around pre-main sequence T Tauri and Herbig Ae/Be stars, to the issue of stellar wind clumping, and the aspherical outflows from the massive star progenitors of supernovae and long gamma-ray bursts at low metallicity.","authors_text":"Jorick S. Vink (Armagh Observatory)","cross_cats":["astro-ph.CO","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-26T13:39:34Z","title":"Linear Spectropolarimetry and the Circumstellar Media of Young and Massive Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.5937","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:d1ab7b6292c9df5c18749b57e469abcce41f78ec0f0971f59f7a1df4805cab5a","target":"record","created_at":"2026-05-18T03:44:45Z","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":"d6c99ee56ded677902cb7234462618131bf470d149b6bbf6877f169bbd55f9cc","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-26T13:39:34Z","title_canon_sha256":"9d329f31cd4e77720b0d471ea99539c6215e55ffc387f63086a87bf036775ee6"},"schema_version":"1.0","source":{"id":"1209.5937","kind":"arxiv","version":1}},"canonical_sha256":"beeb9338d43da846ae9a502b921389c58a5277c80a4cd2132403c1615ff17476","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"beeb9338d43da846ae9a502b921389c58a5277c80a4cd2132403c1615ff17476","first_computed_at":"2026-05-18T03:44:45.857893Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:44:45.857893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0VbyHLPQAv9YZ6i8Ao//5ZK8k1+KRlZqJKYsHuXyfK/ys+Ko6OJ8Y7qADyol6eVKtGAGfxLgUWoc1AszbyR3Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T03:44:45.858621Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.5937","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1ab7b6292c9df5c18749b57e469abcce41f78ec0f0971f59f7a1df4805cab5a","sha256:dbde9845fe92940525672961c447c893daccc842d9079ef2f598aa6b2b20d046"],"state_sha256":"9ec4a61ea33b0821eeaa88f62bd3828fca1734384eef375ebbfcf11abd4d7ad6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AJ1AiNrPohSwjAKHUrMYDDcNKVkrKQgrrQIq7Vo9XqbLKAAFahQy+1mLYh60ogZmTSdKiWsUChGQDO3zXdbMDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T15:14:41.681400Z","bundle_sha256":"fad38bcf4d30cb3d608ebcb6e2947a30a3741a71972a4c68aab4dafc57d4309e"}}