{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:4HFS3SN6TDWEQDL76WWYRD3H5J","short_pith_number":"pith:4HFS3SN6","canonical_record":{"source":{"id":"2201.02631","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-01-07T19:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"70967ae563915fdbaea487ccc3c5e99f060b3475922b1d65cf6afc920185f2c5","abstract_canon_sha256":"4556a971dfe9ec42c51813ae73a05e83b45e43d1f9ed3ebcafdef7b78a34febb"},"schema_version":"1.0"},"canonical_sha256":"e1cb2dc9be98ec480d7ff5ad888f67ea6311b431a8bc55061aeee7d4f3a54203","source":{"kind":"arxiv","id":"2201.02631","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.02631","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"arxiv_version","alias_value":"2201.02631v1","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.02631","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"pith_short_12","alias_value":"4HFS3SN6TDWE","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"pith_short_16","alias_value":"4HFS3SN6TDWEQDL7","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"pith_short_8","alias_value":"4HFS3SN6","created_at":"2026-07-05T03:49:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:4HFS3SN6TDWEQDL76WWYRD3H5J","target":"record","payload":{"canonical_record":{"source":{"id":"2201.02631","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-01-07T19:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"70967ae563915fdbaea487ccc3c5e99f060b3475922b1d65cf6afc920185f2c5","abstract_canon_sha256":"4556a971dfe9ec42c51813ae73a05e83b45e43d1f9ed3ebcafdef7b78a34febb"},"schema_version":"1.0"},"canonical_sha256":"e1cb2dc9be98ec480d7ff5ad888f67ea6311b431a8bc55061aeee7d4f3a54203","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:49:29.955902Z","signature_b64":"Mt1ykKP0OJVLdfh7ulFMfENUJHXiUJC7i72ZQV6QCLhGkKGaY3HrWXp55XBU1bOrO3kDV3ZGolkgC+hrBy5mCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1cb2dc9be98ec480d7ff5ad888f67ea6311b431a8bc55061aeee7d4f3a54203","last_reissued_at":"2026-07-05T03:49:29.955417Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:49:29.955417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.02631","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":"2026-07-05T03:49:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z7MwnOIGuZsN9DLsJMX6lcheLO+2+4TpKXeiMtPLkBMbdrm2bfrMSNiOA6HxpqzJ/1qYJJ6kk2Pnh/nuJA+7CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T18:39:10.422678Z"},"content_sha256":"9b5ac4b4762bd97885b1eac35289811c65c6fa4034a1de26ed37395b52d7c030","schema_version":"1.0","event_id":"sha256:9b5ac4b4762bd97885b1eac35289811c65c6fa4034a1de26ed37395b52d7c030"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:4HFS3SN6TDWEQDL76WWYRD3H5J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing the physicochemical properties of the Leo Ring and the Leo I group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anand Narayanan, Bart Wakker, Christopher Churchill, Glenn Kacprzak, Jane Charlton, Nikole Nielsen, Philipp Richter, Sameer, Sriram Sankar","submitted_at":"2022-01-07T19:00:01Z","abstract_excerpt":"We present an absorption line study of the physical and chemical properties of the Leo HI Ring and the Leo I Group as traced by 11 quasar sightlines spread over a 600 kpc X 800 kpc region. Using HST/COS G130/G160 archival observations as constraints, we couple cloud-by-cloud, multiphase, Bayesian ionization modeling with galaxy property information to determine the plausible origin of the absorbing gas along these sightlines. We search for absorption in the range 600 km/s - 1400 km/s consistent with the kinematics of the Leo Ring/Group. We find absorption plausibly associated with the Leo Ring"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.02631","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/2201.02631/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":"2026-07-05T03:49:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PArnpaRdDOKDCQ2l8g+e35guzjD251gbUyLLFxyVcZUjIlwbOUCWUULCNGtbLzT0+7BE8c4S8MYdihu5GY0ZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T18:39:10.423658Z"},"content_sha256":"e84d15b89ac9858002fed4e24347b0d19130f5efe1105c1bdcafbb3b4883d03a","schema_version":"1.0","event_id":"sha256:e84d15b89ac9858002fed4e24347b0d19130f5efe1105c1bdcafbb3b4883d03a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4HFS3SN6TDWEQDL76WWYRD3H5J/bundle.json","state_url":"https://pith.science/pith/4HFS3SN6TDWEQDL76WWYRD3H5J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4HFS3SN6TDWEQDL76WWYRD3H5J/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":"2026-08-15T18:39:10Z","links":{"resolver":"https://pith.science/pith/4HFS3SN6TDWEQDL76WWYRD3H5J","bundle":"https://pith.science/pith/4HFS3SN6TDWEQDL76WWYRD3H5J/bundle.json","state":"https://pith.science/pith/4HFS3SN6TDWEQDL76WWYRD3H5J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4HFS3SN6TDWEQDL76WWYRD3H5J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:4HFS3SN6TDWEQDL76WWYRD3H5J","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":"4556a971dfe9ec42c51813ae73a05e83b45e43d1f9ed3ebcafdef7b78a34febb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-01-07T19:00:01Z","title_canon_sha256":"70967ae563915fdbaea487ccc3c5e99f060b3475922b1d65cf6afc920185f2c5"},"schema_version":"1.0","source":{"id":"2201.02631","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.02631","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"arxiv_version","alias_value":"2201.02631v1","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.02631","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"pith_short_12","alias_value":"4HFS3SN6TDWE","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"pith_short_16","alias_value":"4HFS3SN6TDWEQDL7","created_at":"2026-07-05T03:49:29Z"},{"alias_kind":"pith_short_8","alias_value":"4HFS3SN6","created_at":"2026-07-05T03:49:29Z"}],"graph_snapshots":[{"event_id":"sha256:e84d15b89ac9858002fed4e24347b0d19130f5efe1105c1bdcafbb3b4883d03a","target":"graph","created_at":"2026-07-05T03:49:29Z","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/2201.02631/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an absorption line study of the physical and chemical properties of the Leo HI Ring and the Leo I Group as traced by 11 quasar sightlines spread over a 600 kpc X 800 kpc region. Using HST/COS G130/G160 archival observations as constraints, we couple cloud-by-cloud, multiphase, Bayesian ionization modeling with galaxy property information to determine the plausible origin of the absorbing gas along these sightlines. We search for absorption in the range 600 km/s - 1400 km/s consistent with the kinematics of the Leo Ring/Group. We find absorption plausibly associated with the Leo Ring","authors_text":"Anand Narayanan, Bart Wakker, Christopher Churchill, Glenn Kacprzak, Jane Charlton, Nikole Nielsen, Philipp Richter, Sameer, Sriram Sankar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-01-07T19:00:01Z","title":"Probing the physicochemical properties of the Leo Ring and the Leo I group"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.02631","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":"sha256:9b5ac4b4762bd97885b1eac35289811c65c6fa4034a1de26ed37395b52d7c030","target":"record","created_at":"2026-07-05T03:49:29Z","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":"4556a971dfe9ec42c51813ae73a05e83b45e43d1f9ed3ebcafdef7b78a34febb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-01-07T19:00:01Z","title_canon_sha256":"70967ae563915fdbaea487ccc3c5e99f060b3475922b1d65cf6afc920185f2c5"},"schema_version":"1.0","source":{"id":"2201.02631","kind":"arxiv","version":1}},"canonical_sha256":"e1cb2dc9be98ec480d7ff5ad888f67ea6311b431a8bc55061aeee7d4f3a54203","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1cb2dc9be98ec480d7ff5ad888f67ea6311b431a8bc55061aeee7d4f3a54203","first_computed_at":"2026-07-05T03:49:29.955417Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:49:29.955417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mt1ykKP0OJVLdfh7ulFMfENUJHXiUJC7i72ZQV6QCLhGkKGaY3HrWXp55XBU1bOrO3kDV3ZGolkgC+hrBy5mCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:49:29.955902Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.02631","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b5ac4b4762bd97885b1eac35289811c65c6fa4034a1de26ed37395b52d7c030","sha256:e84d15b89ac9858002fed4e24347b0d19130f5efe1105c1bdcafbb3b4883d03a"],"state_sha256":"5f067b8aa2620aa631fd98f30ef557d224660b65a27cdbd2abe5ccb22b24f4ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C47WDpEmVlsXu6fLdfI2G5RoTg9TBR9irI5e0WZHBZRLfsxVW+ZqNWguqkQSPqibHDfPAYZWaqB3mk7rcTAzDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T18:39:10.431226Z","bundle_sha256":"63ca272206c0e5b520e5d82edb71cf6ce5164fa332020284fe1fb7eef7a11409"}}