{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:DWLAYHIFOBCWD6AAL3P2IGXRET","short_pith_number":"pith:DWLAYHIF","canonical_record":{"source":{"id":"2209.11340","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-22T22:49:43Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"aea35ac5fef98be9be4618a966ef579664a4b52e58aa3676783dd901bcdd4a8c","abstract_canon_sha256":"2d22653bf094aa79f54cecd0f5eb6de414e95b7efd98574e3e03d90f2bf31a86"},"schema_version":"1.0"},"canonical_sha256":"1d960c1d05704561f8005edfa41af124e31e999ea4bb68e46a9e2281b72a3ed7","source":{"kind":"arxiv","id":"2209.11340","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.11340","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"arxiv_version","alias_value":"2209.11340v2","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.11340","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"pith_short_12","alias_value":"DWLAYHIFOBCW","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"DWLAYHIFOBCWD6AA","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"DWLAYHIF","created_at":"2026-07-05T05:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:DWLAYHIFOBCWD6AAL3P2IGXRET","target":"record","payload":{"canonical_record":{"source":{"id":"2209.11340","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-22T22:49:43Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"aea35ac5fef98be9be4618a966ef579664a4b52e58aa3676783dd901bcdd4a8c","abstract_canon_sha256":"2d22653bf094aa79f54cecd0f5eb6de414e95b7efd98574e3e03d90f2bf31a86"},"schema_version":"1.0"},"canonical_sha256":"1d960c1d05704561f8005edfa41af124e31e999ea4bb68e46a9e2281b72a3ed7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:26:50.202485Z","signature_b64":"Q8nfzcgNjZVNf/mwq6je5D4lQJQdFOP7vGjllBeY+1A6cswFZRvRjEOqIY8m7POWfI9nPaCyOHtktP6kFh+EDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d960c1d05704561f8005edfa41af124e31e999ea4bb68e46a9e2281b72a3ed7","last_reissued_at":"2026-07-05T05:26:50.202001Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:26:50.202001Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.11340","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:26:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oC/6dXg8sef73pT2vbs9cz3VHeh0AmLjIAfkMisK+q+Shij+aPaVwnbcjIJ5h4x0vjmf80BBw0J0871nHtGwAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:16:43.033590Z"},"content_sha256":"1bf080839f9f8849d8c313c646bb92ff0ad225162402dfe2d38d777974e03749","schema_version":"1.0","event_id":"sha256:1bf080839f9f8849d8c313c646bb92ff0ad225162402dfe2d38d777974e03749"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:DWLAYHIFOBCWD6AAL3P2IGXRET","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Distinguishing Between Photoionized and Collisionally Ionized Gas in the Circumgalactic Medium","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Clayton Strawn, Joel Primack, Santi Roca-F\\`abrega","submitted_at":"2022-09-22T22:49:43Z","abstract_excerpt":"Most studies of highly ionized plasmas have historically assumed ions are either in photoionization equilibrium, PIE, or collisional ionization equilibrium, CIE, sometimes including multiple phases with different relevant mechanisms. Simulation analysis packages, on the other hand, tend to use precomputed ion fraction tables which include both mechanisms, among others. Focusing on the low-density, high temperature phase space likely to be most relevant in the circumgalactic medium, in this work we show that most ions can be classified as 'PI' or 'CI' on an ion-by-ion basis. This means that for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.11340","kind":"arxiv","version":2},"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/2209.11340/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":"2026-07-05T05:26:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QVu5b67xDolXs+WCL0yv0SHWaRieBUUOZH1vN0YLVu8e7NLm3lA9LZKGg40P9/p+IdJ12fNet/Jl/v2+OeLSDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:16:43.033975Z"},"content_sha256":"e10b1d6eca7897b73c741c21f3ddfca587d6d8cbed9e3122af487953790afc0e","schema_version":"1.0","event_id":"sha256:e10b1d6eca7897b73c741c21f3ddfca587d6d8cbed9e3122af487953790afc0e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DWLAYHIFOBCWD6AAL3P2IGXRET/bundle.json","state_url":"https://pith.science/pith/DWLAYHIFOBCWD6AAL3P2IGXRET/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DWLAYHIFOBCWD6AAL3P2IGXRET/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":"2026-07-07T08:16:43Z","links":{"resolver":"https://pith.science/pith/DWLAYHIFOBCWD6AAL3P2IGXRET","bundle":"https://pith.science/pith/DWLAYHIFOBCWD6AAL3P2IGXRET/bundle.json","state":"https://pith.science/pith/DWLAYHIFOBCWD6AAL3P2IGXRET/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DWLAYHIFOBCWD6AAL3P2IGXRET/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:DWLAYHIFOBCWD6AAL3P2IGXRET","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":"2d22653bf094aa79f54cecd0f5eb6de414e95b7efd98574e3e03d90f2bf31a86","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-22T22:49:43Z","title_canon_sha256":"aea35ac5fef98be9be4618a966ef579664a4b52e58aa3676783dd901bcdd4a8c"},"schema_version":"1.0","source":{"id":"2209.11340","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.11340","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"arxiv_version","alias_value":"2209.11340v2","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.11340","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"pith_short_12","alias_value":"DWLAYHIFOBCW","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"DWLAYHIFOBCWD6AA","created_at":"2026-07-05T05:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"DWLAYHIF","created_at":"2026-07-05T05:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:e10b1d6eca7897b73c741c21f3ddfca587d6d8cbed9e3122af487953790afc0e","target":"graph","created_at":"2026-07-05T05:26:50Z","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/2209.11340/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Most studies of highly ionized plasmas have historically assumed ions are either in photoionization equilibrium, PIE, or collisional ionization equilibrium, CIE, sometimes including multiple phases with different relevant mechanisms. Simulation analysis packages, on the other hand, tend to use precomputed ion fraction tables which include both mechanisms, among others. Focusing on the low-density, high temperature phase space likely to be most relevant in the circumgalactic medium, in this work we show that most ions can be classified as 'PI' or 'CI' on an ion-by-ion basis. This means that for","authors_text":"Clayton Strawn, Joel Primack, Santi Roca-F\\`abrega","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-22T22:49:43Z","title":"Distinguishing Between Photoionized and Collisionally Ionized Gas in the Circumgalactic Medium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.11340","kind":"arxiv","version":2},"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":"sha256:1bf080839f9f8849d8c313c646bb92ff0ad225162402dfe2d38d777974e03749","target":"record","created_at":"2026-07-05T05:26:50Z","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":"2d22653bf094aa79f54cecd0f5eb6de414e95b7efd98574e3e03d90f2bf31a86","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-09-22T22:49:43Z","title_canon_sha256":"aea35ac5fef98be9be4618a966ef579664a4b52e58aa3676783dd901bcdd4a8c"},"schema_version":"1.0","source":{"id":"2209.11340","kind":"arxiv","version":2}},"canonical_sha256":"1d960c1d05704561f8005edfa41af124e31e999ea4bb68e46a9e2281b72a3ed7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d960c1d05704561f8005edfa41af124e31e999ea4bb68e46a9e2281b72a3ed7","first_computed_at":"2026-07-05T05:26:50.202001Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:26:50.202001Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q8nfzcgNjZVNf/mwq6je5D4lQJQdFOP7vGjllBeY+1A6cswFZRvRjEOqIY8m7POWfI9nPaCyOHtktP6kFh+EDw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:26:50.202485Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.11340","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1bf080839f9f8849d8c313c646bb92ff0ad225162402dfe2d38d777974e03749","sha256:e10b1d6eca7897b73c741c21f3ddfca587d6d8cbed9e3122af487953790afc0e"],"state_sha256":"71261f6dcbdba445643c6aa57986fce14b934692de59a438d45208acd51067ab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SX559zr94xYdsKpecCpH8TlQqWoDRni4BeXbl4uGdsEJn+5XmbXbaXJoXYg2hLbBK33Cwk6XpcA7LLFDZA0jBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:16:43.036073Z","bundle_sha256":"1406072376c562a26959f2823c28acea27d1d8468ce9bf24a6a222208d275f0c"}}