{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:O2ITLZ5Z5ZYITO7MBAELEXHTMD","short_pith_number":"pith:O2ITLZ5Z","canonical_record":{"source":{"id":"2302.00131","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-01-31T22:39:31Z","cross_cats_sorted":[],"title_canon_sha256":"a116293e7d13eb39ef8de2f0eff287a836769957323ce92fae10ccfa4f182e9a","abstract_canon_sha256":"73569f0c513686b46ecdc4f1d5e787c7756ff12c2d093c94d8f0e47bfc4f3cde"},"schema_version":"1.0"},"canonical_sha256":"769135e7b9ee7089bbec0808b25cf360fb3dfcf450d27bcd26be3e7225566866","source":{"kind":"arxiv","id":"2302.00131","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.00131","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"arxiv_version","alias_value":"2302.00131v1","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.00131","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"pith_short_12","alias_value":"O2ITLZ5Z5ZYI","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"pith_short_16","alias_value":"O2ITLZ5Z5ZYITO7M","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"pith_short_8","alias_value":"O2ITLZ5Z","created_at":"2026-07-05T05:55:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:O2ITLZ5Z5ZYITO7MBAELEXHTMD","target":"record","payload":{"canonical_record":{"source":{"id":"2302.00131","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-01-31T22:39:31Z","cross_cats_sorted":[],"title_canon_sha256":"a116293e7d13eb39ef8de2f0eff287a836769957323ce92fae10ccfa4f182e9a","abstract_canon_sha256":"73569f0c513686b46ecdc4f1d5e787c7756ff12c2d093c94d8f0e47bfc4f3cde"},"schema_version":"1.0"},"canonical_sha256":"769135e7b9ee7089bbec0808b25cf360fb3dfcf450d27bcd26be3e7225566866","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:55:49.138463Z","signature_b64":"+ASrskofZe9vnv1bfTAH0n3QhTLLQAFfQYVs1woaaNdQJrsLhJmc9pFmCopBy37+oS9wgLjvjrrl3BawdQ2PDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"769135e7b9ee7089bbec0808b25cf360fb3dfcf450d27bcd26be3e7225566866","last_reissued_at":"2026-07-05T05:55:49.137964Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:55:49.137964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.00131","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":"2026-07-05T05:55:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CKwYTGHNGD9afwGodZastUs87HZm776Us1ngENRevcuta1G0MmDfogDfsghYGkQPh8j1m3gs7WbD1Wo59qTlAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T16:56:30.040942Z"},"content_sha256":"82af58f3cb906cb97df015d7ea60869e6efc3dcb06b2f69e9f4369bfd78e059c","schema_version":"1.0","event_id":"sha256:82af58f3cb906cb97df015d7ea60869e6efc3dcb06b2f69e9f4369bfd78e059c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:O2ITLZ5Z5ZYITO7MBAELEXHTMD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chemical diversity of gas in distant galaxies: The metal and dust enrichment and variations within absorbing galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. De Cia, C. Konstantopoulou, C. Ledoux, C. P\\'eroux, I. Jermann, J. Fynbo, J.-K. Krogager, M. Dessauges-Zavadsky, M. Wendt, N. F. Bouch\\'e, P. Petitjean, T. Ramburuth-Hurt","submitted_at":"2023-01-31T22:39:31Z","abstract_excerpt":"The chemical composition of gas in galaxies can be measured in detail from absorption spectroscopy. By studying gas in galaxies in this way, it is possible to investigate the small and faint galaxies, which are the most numerous in the universe. In particular, the chemical distribution of gas in absorbing systems gives us insight into cycles of gas in and around galaxies. Here we study chemical enrichment within 64 Damped Lyman-alpha Absorption (DLA) systems between $1.7 < z < 4.2$. We use high-resolution spectra from VLT/UVES to infer dust depletion from relative abundances of several metals."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.00131","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2302.00131/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:55:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EDsoaImNGoQi/UKfYkmdGzgP73bK3qk4OU5qziyH0599EeLvndVmXa65vnC7Ta3+4Y6n31QFdsIQN6HwgF/JDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T16:56:30.041332Z"},"content_sha256":"477aa21c4c8dc63f66b7e6a73459186bdb0c593eff659f6a31c550fa6ed08577","schema_version":"1.0","event_id":"sha256:477aa21c4c8dc63f66b7e6a73459186bdb0c593eff659f6a31c550fa6ed08577"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O2ITLZ5Z5ZYITO7MBAELEXHTMD/bundle.json","state_url":"https://pith.science/pith/O2ITLZ5Z5ZYITO7MBAELEXHTMD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O2ITLZ5Z5ZYITO7MBAELEXHTMD/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":"2026-07-09T16:56:30Z","links":{"resolver":"https://pith.science/pith/O2ITLZ5Z5ZYITO7MBAELEXHTMD","bundle":"https://pith.science/pith/O2ITLZ5Z5ZYITO7MBAELEXHTMD/bundle.json","state":"https://pith.science/pith/O2ITLZ5Z5ZYITO7MBAELEXHTMD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O2ITLZ5Z5ZYITO7MBAELEXHTMD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:O2ITLZ5Z5ZYITO7MBAELEXHTMD","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":"73569f0c513686b46ecdc4f1d5e787c7756ff12c2d093c94d8f0e47bfc4f3cde","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-01-31T22:39:31Z","title_canon_sha256":"a116293e7d13eb39ef8de2f0eff287a836769957323ce92fae10ccfa4f182e9a"},"schema_version":"1.0","source":{"id":"2302.00131","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.00131","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"arxiv_version","alias_value":"2302.00131v1","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.00131","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"pith_short_12","alias_value":"O2ITLZ5Z5ZYI","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"pith_short_16","alias_value":"O2ITLZ5Z5ZYITO7M","created_at":"2026-07-05T05:55:49Z"},{"alias_kind":"pith_short_8","alias_value":"O2ITLZ5Z","created_at":"2026-07-05T05:55:49Z"}],"graph_snapshots":[{"event_id":"sha256:477aa21c4c8dc63f66b7e6a73459186bdb0c593eff659f6a31c550fa6ed08577","target":"graph","created_at":"2026-07-05T05:55:49Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2302.00131/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The chemical composition of gas in galaxies can be measured in detail from absorption spectroscopy. By studying gas in galaxies in this way, it is possible to investigate the small and faint galaxies, which are the most numerous in the universe. In particular, the chemical distribution of gas in absorbing systems gives us insight into cycles of gas in and around galaxies. Here we study chemical enrichment within 64 Damped Lyman-alpha Absorption (DLA) systems between $1.7 < z < 4.2$. We use high-resolution spectra from VLT/UVES to infer dust depletion from relative abundances of several metals.","authors_text":"A. De Cia, C. Konstantopoulou, C. Ledoux, C. P\\'eroux, I. Jermann, J. Fynbo, J.-K. Krogager, M. Dessauges-Zavadsky, M. Wendt, N. F. Bouch\\'e, P. Petitjean, T. Ramburuth-Hurt","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-01-31T22:39:31Z","title":"Chemical diversity of gas in distant galaxies: The metal and dust enrichment and variations within absorbing galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.00131","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":"sha256:82af58f3cb906cb97df015d7ea60869e6efc3dcb06b2f69e9f4369bfd78e059c","target":"record","created_at":"2026-07-05T05:55:49Z","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":"73569f0c513686b46ecdc4f1d5e787c7756ff12c2d093c94d8f0e47bfc4f3cde","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-01-31T22:39:31Z","title_canon_sha256":"a116293e7d13eb39ef8de2f0eff287a836769957323ce92fae10ccfa4f182e9a"},"schema_version":"1.0","source":{"id":"2302.00131","kind":"arxiv","version":1}},"canonical_sha256":"769135e7b9ee7089bbec0808b25cf360fb3dfcf450d27bcd26be3e7225566866","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"769135e7b9ee7089bbec0808b25cf360fb3dfcf450d27bcd26be3e7225566866","first_computed_at":"2026-07-05T05:55:49.137964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:55:49.137964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+ASrskofZe9vnv1bfTAH0n3QhTLLQAFfQYVs1woaaNdQJrsLhJmc9pFmCopBy37+oS9wgLjvjrrl3BawdQ2PDg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:55:49.138463Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.00131","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82af58f3cb906cb97df015d7ea60869e6efc3dcb06b2f69e9f4369bfd78e059c","sha256:477aa21c4c8dc63f66b7e6a73459186bdb0c593eff659f6a31c550fa6ed08577"],"state_sha256":"26d54792c44b6b19a5506ed0af530b47a5bf7acca8e0b942561b13ece65be401"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fysKHR81PmF6b5h0/43IdXYvomStH12jALA6Tm/nyKAk+DQs+1Gh2WX/s0gEANJmEFRHlbR+MgI3NA4wUkvTAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T16:56:30.043395Z","bundle_sha256":"0d1208cdf65f5e05cefef6410f58c6ecae513001b1bd85b2bec7e1b6a8965c93"}}