{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:J6I36P2V4PG7ZVH37SDRPT6TUL","short_pith_number":"pith:J6I36P2V","canonical_record":{"source":{"id":"1009.5821","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-29T09:55:50Z","cross_cats_sorted":[],"title_canon_sha256":"8c6ddf66f8f08a08a8aa4b98b985a08f6c22e6ec555fe3ca5585a2d0a9427323","abstract_canon_sha256":"534da14832d69b211e7e167711c39a6445f2be492de2b8089a27860f8105d9e2"},"schema_version":"1.0"},"canonical_sha256":"4f91bf3f55e3cdfcd4fbfc8717cfd3a2dff093b9c3a35aead463d87ca688f727","source":{"kind":"arxiv","id":"1009.5821","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5821","created_at":"2026-05-18T04:40:08Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5821v1","created_at":"2026-05-18T04:40:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5821","created_at":"2026-05-18T04:40:08Z"},{"alias_kind":"pith_short_12","alias_value":"J6I36P2V4PG7","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"J6I36P2V4PG7ZVH3","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"J6I36P2V","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:J6I36P2V4PG7ZVH37SDRPT6TUL","target":"record","payload":{"canonical_record":{"source":{"id":"1009.5821","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-29T09:55:50Z","cross_cats_sorted":[],"title_canon_sha256":"8c6ddf66f8f08a08a8aa4b98b985a08f6c22e6ec555fe3ca5585a2d0a9427323","abstract_canon_sha256":"534da14832d69b211e7e167711c39a6445f2be492de2b8089a27860f8105d9e2"},"schema_version":"1.0"},"canonical_sha256":"4f91bf3f55e3cdfcd4fbfc8717cfd3a2dff093b9c3a35aead463d87ca688f727","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:40:08.835653Z","signature_b64":"wUkNoPGRrgIRaOqTEypLVBJA+3YCP5bi8Zhu/9DEMEUng09HzspWpktrKnbJCeqNqa6uP4q+tPjHwFSn+josDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f91bf3f55e3cdfcd4fbfc8717cfd3a2dff093b9c3a35aead463d87ca688f727","last_reissued_at":"2026-05-18T04:40:08.835195Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:40:08.835195Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.5821","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":"2026-05-18T04:40:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VLriDK8NyP292bw2ImYYcwy2Oe2uqGu//TMxLR/6f6NMicu8Tm+b3pWHax72hlawAszdF9nK8aY+v0D13y1UDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T13:08:14.359025Z"},"content_sha256":"8f91eddb755e35e1272fb9b05cb20680d18303e77532264c7fef467bc3e18ba7","schema_version":"1.0","event_id":"sha256:8f91eddb755e35e1272fb9b05cb20680d18303e77532264c7fef467bc3e18ba7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:J6I36P2V4PG7ZVH37SDRPT6TUL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The chemical composition of the Orion star forming region: stars, gas and dust","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"G. Stasi\\'nska, M. F. Nieva, N. Przybilla, S. Sim\\'on-D\\'iaz","submitted_at":"2010-09-29T09:55:50Z","abstract_excerpt":"We present a summary of main results from the studies performed in the series of papers \"The chemical composition of the Orion star forming region\". We reinvestigate the chemical composition of B-type stars in the Orion OB1 association by means of state-of-the-art stellar atmosphere codes, atomic models and techniques, and compare the resulting abundances with those obtained from the emission line spectra of the Orion nebula (M42), and recent determinations of the Solar chemical composition."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5821","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":"2026-05-18T04:40:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mSBCBci9noud0Ke4rdamrejgVBwEf4PlvkKVzAIFLqAQpBfiQajmG4WUVBVSgAtKLNRstl5qv9CiaSiTp20RDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T13:08:14.359380Z"},"content_sha256":"6558d997e837563b9cbf1f66aa6a7e7b25b4db75769f97fe93caa5384491e5b2","schema_version":"1.0","event_id":"sha256:6558d997e837563b9cbf1f66aa6a7e7b25b4db75769f97fe93caa5384491e5b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J6I36P2V4PG7ZVH37SDRPT6TUL/bundle.json","state_url":"https://pith.science/pith/J6I36P2V4PG7ZVH37SDRPT6TUL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J6I36P2V4PG7ZVH37SDRPT6TUL/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":"2026-06-05T13:08:14Z","links":{"resolver":"https://pith.science/pith/J6I36P2V4PG7ZVH37SDRPT6TUL","bundle":"https://pith.science/pith/J6I36P2V4PG7ZVH37SDRPT6TUL/bundle.json","state":"https://pith.science/pith/J6I36P2V4PG7ZVH37SDRPT6TUL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J6I36P2V4PG7ZVH37SDRPT6TUL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:J6I36P2V4PG7ZVH37SDRPT6TUL","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":"534da14832d69b211e7e167711c39a6445f2be492de2b8089a27860f8105d9e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-29T09:55:50Z","title_canon_sha256":"8c6ddf66f8f08a08a8aa4b98b985a08f6c22e6ec555fe3ca5585a2d0a9427323"},"schema_version":"1.0","source":{"id":"1009.5821","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5821","created_at":"2026-05-18T04:40:08Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5821v1","created_at":"2026-05-18T04:40:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5821","created_at":"2026-05-18T04:40:08Z"},{"alias_kind":"pith_short_12","alias_value":"J6I36P2V4PG7","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"J6I36P2V4PG7ZVH3","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"J6I36P2V","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:6558d997e837563b9cbf1f66aa6a7e7b25b4db75769f97fe93caa5384491e5b2","target":"graph","created_at":"2026-05-18T04:40:08Z","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 a summary of main results from the studies performed in the series of papers \"The chemical composition of the Orion star forming region\". We reinvestigate the chemical composition of B-type stars in the Orion OB1 association by means of state-of-the-art stellar atmosphere codes, atomic models and techniques, and compare the resulting abundances with those obtained from the emission line spectra of the Orion nebula (M42), and recent determinations of the Solar chemical composition.","authors_text":"G. Stasi\\'nska, M. F. Nieva, N. Przybilla, S. Sim\\'on-D\\'iaz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-29T09:55:50Z","title":"The chemical composition of the Orion star forming region: stars, gas and dust"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5821","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":"sha256:8f91eddb755e35e1272fb9b05cb20680d18303e77532264c7fef467bc3e18ba7","target":"record","created_at":"2026-05-18T04:40:08Z","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":"534da14832d69b211e7e167711c39a6445f2be492de2b8089a27860f8105d9e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-29T09:55:50Z","title_canon_sha256":"8c6ddf66f8f08a08a8aa4b98b985a08f6c22e6ec555fe3ca5585a2d0a9427323"},"schema_version":"1.0","source":{"id":"1009.5821","kind":"arxiv","version":1}},"canonical_sha256":"4f91bf3f55e3cdfcd4fbfc8717cfd3a2dff093b9c3a35aead463d87ca688f727","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f91bf3f55e3cdfcd4fbfc8717cfd3a2dff093b9c3a35aead463d87ca688f727","first_computed_at":"2026-05-18T04:40:08.835195Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:40:08.835195Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wUkNoPGRrgIRaOqTEypLVBJA+3YCP5bi8Zhu/9DEMEUng09HzspWpktrKnbJCeqNqa6uP4q+tPjHwFSn+josDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:40:08.835653Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.5821","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8f91eddb755e35e1272fb9b05cb20680d18303e77532264c7fef467bc3e18ba7","sha256:6558d997e837563b9cbf1f66aa6a7e7b25b4db75769f97fe93caa5384491e5b2"],"state_sha256":"b744bb49565731dc3a24d9cf294d6cb8936090c733383c72f702006353b3f855"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PMtEkJyGfcnbjYvXkCXUdbzn8+u7ZKbRnnKGFMu7RnVDzn8kvLEWmULYpuB/23JJMgCZzCRfjxd/Kn9+3Ei5Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T13:08:14.361374Z","bundle_sha256":"e8b1b72ce9caf971456710b8cf7fb286f47f7b98a593f67be4b6fff4eeef736a"}}