{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:ASZ3UEJPKNJPTUFROEUOVHK6HD","short_pith_number":"pith:ASZ3UEJP","canonical_record":{"source":{"id":"0909.2307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-12T06:52:24Z","cross_cats_sorted":[],"title_canon_sha256":"b3b262ff345845a3e6b53a6a24e73ac8f0e349665bbe78b64fd021cd08fe5be8","abstract_canon_sha256":"eaffca0af0a3e97c7860c43210f910c8d62c7d4ee7441a5f1b2673f2661b00d3"},"schema_version":"1.0"},"canonical_sha256":"04b3ba112f5352f9d0b17128ea9d5e38dbcfc57724fd1bbf0544679b5a273f26","source":{"kind":"arxiv","id":"0909.2307","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2307","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2307v1","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2307","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"pith_short_12","alias_value":"ASZ3UEJPKNJP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"ASZ3UEJPKNJPTUFR","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"ASZ3UEJP","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:ASZ3UEJPKNJPTUFROEUOVHK6HD","target":"record","payload":{"canonical_record":{"source":{"id":"0909.2307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-12T06:52:24Z","cross_cats_sorted":[],"title_canon_sha256":"b3b262ff345845a3e6b53a6a24e73ac8f0e349665bbe78b64fd021cd08fe5be8","abstract_canon_sha256":"eaffca0af0a3e97c7860c43210f910c8d62c7d4ee7441a5f1b2673f2661b00d3"},"schema_version":"1.0"},"canonical_sha256":"04b3ba112f5352f9d0b17128ea9d5e38dbcfc57724fd1bbf0544679b5a273f26","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:48.637675Z","signature_b64":"cQcBYXv3NcVF+I/WqNrOSgMe2beL/I92GXluwIMBLP1jpHXfeJUcvypcRRTWvbP4EyKMXjD5BMFA3wxhKZx5Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04b3ba112f5352f9d0b17128ea9d5e38dbcfc57724fd1bbf0544679b5a273f26","last_reissued_at":"2026-05-18T02:11:48.637093Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:48.637093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.2307","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":"2026-05-18T02:11:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g1pwwcaKbcQpg6WS1mybI0fAqD2uMQP2RtalyHq8CWoZNur+tzdtFUgdNY+i0nbu3DcvkJnXCXlF2zP4GesiAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T14:31:28.363994Z"},"content_sha256":"52216426714183003802bef55750bbc16c13dd4f139b08f1e451aefeea390e02","schema_version":"1.0","event_id":"sha256:52216426714183003802bef55750bbc16c13dd4f139b08f1e451aefeea390e02"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:ASZ3UEJPKNJPTUFROEUOVHK6HD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Oxygen lines in solar granulation. I. Testing 3D models against new observations with high spatial and spectral resolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Dan Kiselman, Martin Asplund, Tiago M. D. Pereira","submitted_at":"2009-09-12T06:52:24Z","abstract_excerpt":"Aims: we seek to provide additional tests of the line formation of theoretical 3D solar photosphere models. In particular, we set out to test the spatially-resolved line formation at several viewing angles, from the solar disk-centre to the limb and focusing on atomic oxygen lines. The purpose of these tests is to provide additional information on whether the 3D model is suitable to derive the solar oxygen abundance. We also aim to empirically constrain the NLTE recipes for neutral hydrogen collisions, using the spatially-resolved observations of the OI 777 nm lines. Methods: using the Swedish"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2307","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":"2026-05-18T02:11:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SraaEvgrsZYlKzT7A5bK6qWqpoYkcMH7UPNZGQBGMeUSxQvawEy2+Mjy2QxlK14Dn8rA3ViVGk78yBrRRPrKBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T14:31:28.364589Z"},"content_sha256":"4c1ab84d11724accf93cfca14ada0a840d336cbb5326e0fb2e159bc20ca52251","schema_version":"1.0","event_id":"sha256:4c1ab84d11724accf93cfca14ada0a840d336cbb5326e0fb2e159bc20ca52251"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ASZ3UEJPKNJPTUFROEUOVHK6HD/bundle.json","state_url":"https://pith.science/pith/ASZ3UEJPKNJPTUFROEUOVHK6HD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ASZ3UEJPKNJPTUFROEUOVHK6HD/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":"2026-08-05T14:31:28Z","links":{"resolver":"https://pith.science/pith/ASZ3UEJPKNJPTUFROEUOVHK6HD","bundle":"https://pith.science/pith/ASZ3UEJPKNJPTUFROEUOVHK6HD/bundle.json","state":"https://pith.science/pith/ASZ3UEJPKNJPTUFROEUOVHK6HD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ASZ3UEJPKNJPTUFROEUOVHK6HD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:ASZ3UEJPKNJPTUFROEUOVHK6HD","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":"eaffca0af0a3e97c7860c43210f910c8d62c7d4ee7441a5f1b2673f2661b00d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-12T06:52:24Z","title_canon_sha256":"b3b262ff345845a3e6b53a6a24e73ac8f0e349665bbe78b64fd021cd08fe5be8"},"schema_version":"1.0","source":{"id":"0909.2307","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2307","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2307v1","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2307","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"pith_short_12","alias_value":"ASZ3UEJPKNJP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"ASZ3UEJPKNJPTUFR","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"ASZ3UEJP","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:4c1ab84d11724accf93cfca14ada0a840d336cbb5326e0fb2e159bc20ca52251","target":"graph","created_at":"2026-05-18T02:11:48Z","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":"Aims: we seek to provide additional tests of the line formation of theoretical 3D solar photosphere models. In particular, we set out to test the spatially-resolved line formation at several viewing angles, from the solar disk-centre to the limb and focusing on atomic oxygen lines. The purpose of these tests is to provide additional information on whether the 3D model is suitable to derive the solar oxygen abundance. We also aim to empirically constrain the NLTE recipes for neutral hydrogen collisions, using the spatially-resolved observations of the OI 777 nm lines. Methods: using the Swedish","authors_text":"Dan Kiselman, Martin Asplund, Tiago M. D. Pereira","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-12T06:52:24Z","title":"Oxygen lines in solar granulation. I. Testing 3D models against new observations with high spatial and spectral resolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2307","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":"sha256:52216426714183003802bef55750bbc16c13dd4f139b08f1e451aefeea390e02","target":"record","created_at":"2026-05-18T02:11:48Z","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":"eaffca0af0a3e97c7860c43210f910c8d62c7d4ee7441a5f1b2673f2661b00d3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-12T06:52:24Z","title_canon_sha256":"b3b262ff345845a3e6b53a6a24e73ac8f0e349665bbe78b64fd021cd08fe5be8"},"schema_version":"1.0","source":{"id":"0909.2307","kind":"arxiv","version":1}},"canonical_sha256":"04b3ba112f5352f9d0b17128ea9d5e38dbcfc57724fd1bbf0544679b5a273f26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04b3ba112f5352f9d0b17128ea9d5e38dbcfc57724fd1bbf0544679b5a273f26","first_computed_at":"2026-05-18T02:11:48.637093Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:48.637093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cQcBYXv3NcVF+I/WqNrOSgMe2beL/I92GXluwIMBLP1jpHXfeJUcvypcRRTWvbP4EyKMXjD5BMFA3wxhKZx5Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:48.637675Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.2307","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:52216426714183003802bef55750bbc16c13dd4f139b08f1e451aefeea390e02","sha256:4c1ab84d11724accf93cfca14ada0a840d336cbb5326e0fb2e159bc20ca52251"],"state_sha256":"d2a98b647f62217fe1c8a598dc7a1561e979fbbe7126ee8217efd46b8f8d2ae2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vyo1qSgHOna5eKeRy7ejTnTdK2TKpQ1eYSc0TqmFD300g7ZGNnwCf0EypZepxYNEoJ8Hp9becdE8+lzha3qpDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T14:31:28.368433Z","bundle_sha256":"fe8aaadc6776ba9f4317d30f6a0b9df7c437182c7a77928611a83b192b1c2a7f"}}