{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:QSSHYLVYO3QITIKLPZZRH6S75Z","short_pith_number":"pith:QSSHYLVY","canonical_record":{"source":{"id":"1305.1763","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-08T10:10:57Z","cross_cats_sorted":[],"title_canon_sha256":"782f91d08c1dee6208f4eb1ac8311814211211f88fc3c539405f70807a47dc8a","abstract_canon_sha256":"46589ce2d12fd60d12113b1c1473fd0d3a3e2a8189fe982c6c19d9533326e327"},"schema_version":"1.0"},"canonical_sha256":"84a47c2eb876e089a14b7e7313fa5fee559b3dd657a392633fc669ddd6e796a7","source":{"kind":"arxiv","id":"1305.1763","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.1763","created_at":"2026-05-18T01:50:04Z"},{"alias_kind":"arxiv_version","alias_value":"1305.1763v1","created_at":"2026-05-18T01:50:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.1763","created_at":"2026-05-18T01:50:04Z"},{"alias_kind":"pith_short_12","alias_value":"QSSHYLVYO3QI","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QSSHYLVYO3QITIKL","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QSSHYLVY","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:QSSHYLVYO3QITIKLPZZRH6S75Z","target":"record","payload":{"canonical_record":{"source":{"id":"1305.1763","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-08T10:10:57Z","cross_cats_sorted":[],"title_canon_sha256":"782f91d08c1dee6208f4eb1ac8311814211211f88fc3c539405f70807a47dc8a","abstract_canon_sha256":"46589ce2d12fd60d12113b1c1473fd0d3a3e2a8189fe982c6c19d9533326e327"},"schema_version":"1.0"},"canonical_sha256":"84a47c2eb876e089a14b7e7313fa5fee559b3dd657a392633fc669ddd6e796a7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:04.807729Z","signature_b64":"JZkkpwgUHHGlEUMWbswIZCQBN6gkqzEwWNCqfI8D9FK+S5vU6tgJx+Ci4NjsJAr4NIdtKTjRt4gF+oqEai+DCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84a47c2eb876e089a14b7e7313fa5fee559b3dd657a392633fc669ddd6e796a7","last_reissued_at":"2026-05-18T01:50:04.807029Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:04.807029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.1763","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":"2026-05-18T01:50:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j4gfiExxxsGl1eXDnu/uWTTJUfWYJ8q23bIR4ZWiSCb8P4oMwYREJHnV/VVv/gMLPHAYjo01czlMu5sV7HSRAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T03:05:17.460950Z"},"content_sha256":"e11cd43161bbb5402ef56bb9a40f1240ffced8d38abe5ce3d54045c660b8633f","schema_version":"1.0","event_id":"sha256:e11cd43161bbb5402ef56bb9a40f1240ffced8d38abe5ce3d54045c660b8633f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:QSSHYLVYO3QITIKLPZZRH6S75Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The photospheric solar oxygen project: II. Non-concordance of the oxygen abundance derived from two forbidden lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"2), (2) GEPI, (3) LESIA, (4) AIP, (5) ESO), Elisabetta Caffau (1, Hans-G. Ludwig (1, Jean-M. Malherbe (3), Lorenzo Monaco (5) ((1) LSW, Matthias Steffen (4), Piercarlo Bonifacio (2), ZAH","submitted_at":"2013-05-08T10:10:57Z","abstract_excerpt":"In the Sun, the two forbidden [OI] lines at 630 and 636 nm were previously found to provide discrepant oxygen abundances. aims: We investigate whether this discrepancy is peculiar to the Sun or whether it is also observed in other stars. method: We make use of high-resolution, high signal-to-noise ratio spectra of four dwarf to turn-off stars, five giant stars, and one sub-giant star observed with THEMIS, HARPS, and UVES to investigate the coherence of the two lines. results: The two lines provide oxygen abundances that are consistent, within observational errors, in all the giant stars examin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.1763","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":"2026-05-18T01:50:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KrhhVF+qVDRtOV8gf5sMK+z9eevx9Bf2rVTDk2jjfSTpnVyzLNp0J1aVmUj2EhjQ/y2Lo/H5k9PaTizx82vFDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T03:05:17.461297Z"},"content_sha256":"469148d647337ff1d6c887ad964a326e5708d5012cbeac1e87c1137ac1c30461","schema_version":"1.0","event_id":"sha256:469148d647337ff1d6c887ad964a326e5708d5012cbeac1e87c1137ac1c30461"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QSSHYLVYO3QITIKLPZZRH6S75Z/bundle.json","state_url":"https://pith.science/pith/QSSHYLVYO3QITIKLPZZRH6S75Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QSSHYLVYO3QITIKLPZZRH6S75Z/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":"2026-05-28T03:05:17Z","links":{"resolver":"https://pith.science/pith/QSSHYLVYO3QITIKLPZZRH6S75Z","bundle":"https://pith.science/pith/QSSHYLVYO3QITIKLPZZRH6S75Z/bundle.json","state":"https://pith.science/pith/QSSHYLVYO3QITIKLPZZRH6S75Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QSSHYLVYO3QITIKLPZZRH6S75Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QSSHYLVYO3QITIKLPZZRH6S75Z","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":"46589ce2d12fd60d12113b1c1473fd0d3a3e2a8189fe982c6c19d9533326e327","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-08T10:10:57Z","title_canon_sha256":"782f91d08c1dee6208f4eb1ac8311814211211f88fc3c539405f70807a47dc8a"},"schema_version":"1.0","source":{"id":"1305.1763","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.1763","created_at":"2026-05-18T01:50:04Z"},{"alias_kind":"arxiv_version","alias_value":"1305.1763v1","created_at":"2026-05-18T01:50:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.1763","created_at":"2026-05-18T01:50:04Z"},{"alias_kind":"pith_short_12","alias_value":"QSSHYLVYO3QI","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QSSHYLVYO3QITIKL","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QSSHYLVY","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:469148d647337ff1d6c887ad964a326e5708d5012cbeac1e87c1137ac1c30461","target":"graph","created_at":"2026-05-18T01:50:04Z","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":"In the Sun, the two forbidden [OI] lines at 630 and 636 nm were previously found to provide discrepant oxygen abundances. aims: We investigate whether this discrepancy is peculiar to the Sun or whether it is also observed in other stars. method: We make use of high-resolution, high signal-to-noise ratio spectra of four dwarf to turn-off stars, five giant stars, and one sub-giant star observed with THEMIS, HARPS, and UVES to investigate the coherence of the two lines. results: The two lines provide oxygen abundances that are consistent, within observational errors, in all the giant stars examin","authors_text":"2), (2) GEPI, (3) LESIA, (4) AIP, (5) ESO), Elisabetta Caffau (1, Hans-G. Ludwig (1, Jean-M. Malherbe (3), Lorenzo Monaco (5) ((1) LSW, Matthias Steffen (4), Piercarlo Bonifacio (2), ZAH","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-08T10:10:57Z","title":"The photospheric solar oxygen project: II. Non-concordance of the oxygen abundance derived from two forbidden lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.1763","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:e11cd43161bbb5402ef56bb9a40f1240ffced8d38abe5ce3d54045c660b8633f","target":"record","created_at":"2026-05-18T01:50:04Z","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":"46589ce2d12fd60d12113b1c1473fd0d3a3e2a8189fe982c6c19d9533326e327","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-08T10:10:57Z","title_canon_sha256":"782f91d08c1dee6208f4eb1ac8311814211211f88fc3c539405f70807a47dc8a"},"schema_version":"1.0","source":{"id":"1305.1763","kind":"arxiv","version":1}},"canonical_sha256":"84a47c2eb876e089a14b7e7313fa5fee559b3dd657a392633fc669ddd6e796a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84a47c2eb876e089a14b7e7313fa5fee559b3dd657a392633fc669ddd6e796a7","first_computed_at":"2026-05-18T01:50:04.807029Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:04.807029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JZkkpwgUHHGlEUMWbswIZCQBN6gkqzEwWNCqfI8D9FK+S5vU6tgJx+Ci4NjsJAr4NIdtKTjRt4gF+oqEai+DCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:04.807729Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.1763","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e11cd43161bbb5402ef56bb9a40f1240ffced8d38abe5ce3d54045c660b8633f","sha256:469148d647337ff1d6c887ad964a326e5708d5012cbeac1e87c1137ac1c30461"],"state_sha256":"64161d3edd88bb6c41c2219960bef03d328f878b0134e453d8579130333a4cde"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sISyZD76fl++EbMDZdyDnnX3PjoHM/BxEkMpVixuxsT9098Qnwdb0atVSf3wYIdww6upWsGKgBzdlJEpgq5gCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T03:05:17.463253Z","bundle_sha256":"0ae4dd964d6b30a4635556706c32b1c2031d21fe1ecff8fd6cd2112ad2dd7866"}}