{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KAKIZ3KB7E2T7VOYZ4TM64TF6Q","short_pith_number":"pith:KAKIZ3KB","canonical_record":{"source":{"id":"1304.4730","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-17T08:37:18Z","cross_cats_sorted":[],"title_canon_sha256":"c2319c5e9c519f4ec42ea7d768f61d3e4a369db59b160ab6bfb0d4f8938aec41","abstract_canon_sha256":"40fd3f5b73e36535c718ecbe06e5243692ec6b23304aa6c43c84b1dd5dd6ba1d"},"schema_version":"1.0"},"canonical_sha256":"50148ced41f9353fd5d8cf26cf7265f42d3d433028c9e6757c2b9ef0a3bbb120","source":{"kind":"arxiv","id":"1304.4730","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.4730","created_at":"2026-05-18T01:50:31Z"},{"alias_kind":"arxiv_version","alias_value":"1304.4730v1","created_at":"2026-05-18T01:50:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4730","created_at":"2026-05-18T01:50:31Z"},{"alias_kind":"pith_short_12","alias_value":"KAKIZ3KB7E2T","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KAKIZ3KB7E2T7VOY","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KAKIZ3KB","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KAKIZ3KB7E2T7VOYZ4TM64TF6Q","target":"record","payload":{"canonical_record":{"source":{"id":"1304.4730","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-17T08:37:18Z","cross_cats_sorted":[],"title_canon_sha256":"c2319c5e9c519f4ec42ea7d768f61d3e4a369db59b160ab6bfb0d4f8938aec41","abstract_canon_sha256":"40fd3f5b73e36535c718ecbe06e5243692ec6b23304aa6c43c84b1dd5dd6ba1d"},"schema_version":"1.0"},"canonical_sha256":"50148ced41f9353fd5d8cf26cf7265f42d3d433028c9e6757c2b9ef0a3bbb120","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:31.823842Z","signature_b64":"UoOzODGc0a0xcZVyqi1fVJTwa9TvNlvkV4yPLK2oWWGTWlJ2y84QvDGwu1l1U+55HWxVJvA3IzEGgVQ71VD3CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50148ced41f9353fd5d8cf26cf7265f42d3d433028c9e6757c2b9ef0a3bbb120","last_reissued_at":"2026-05-18T01:50:31.823212Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:31.823212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.4730","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":"2026-05-18T01:50:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sA2KC3Fp9OiX+IWr/Z7itL5fGZ3ACr7Rp2C8GbqlSCbz7QNlwJM44bJOfkE1Q82950gXcupqiriWzqjfHPP6Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T09:43:09.417571Z"},"content_sha256":"b1c5ebaf539d39ad4d85583cf519a8a04698e865f288202b41aad6da294302f5","schema_version":"1.0","event_id":"sha256:b1c5ebaf539d39ad4d85583cf519a8a04698e865f288202b41aad6da294302f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KAKIZ3KB7E2T7VOYZ4TM64TF6Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enriching the hot circumgalactic medium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Carlos S. Frenk, Ian G. McCarthy, Joop Schaye, Robert A. Crain, Tom Theuns","submitted_at":"2013-04-17T08:37:18Z","abstract_excerpt":"Models of galaxy formation in a CDM universe predict that massive galaxies are surrounded by a hot, quasi-hydrostatic circumgalactic corona of slowly cooling gas, predominantly accreted from the IGM. This prediction is borne out by the cosmological hydrodynamical simulations of Crain et al., which reproduce scaling relations between the X-ray and optical properties of nearby disc galaxies. Such coronae are metal poor, but observations of the X-ray emitting circumgalactic medium (CGM) of local galaxies typically indicate enrichment to near-solar iron abundance, potentially signalling a shortcom"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4730","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":"2026-05-18T01:50:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vK7gRczYvFSkyMvBW7v9cvfb1FLCjPShPMdVEk3MBnmbsrV8anM0OazQHx0mtQbIZA5yYhflz16+wD/ooH4KDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T09:43:09.417906Z"},"content_sha256":"c782ac5079745adacd49bee78b028fbf385dc82012bd4ef5b970f08f17047a16","schema_version":"1.0","event_id":"sha256:c782ac5079745adacd49bee78b028fbf385dc82012bd4ef5b970f08f17047a16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KAKIZ3KB7E2T7VOYZ4TM64TF6Q/bundle.json","state_url":"https://pith.science/pith/KAKIZ3KB7E2T7VOYZ4TM64TF6Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KAKIZ3KB7E2T7VOYZ4TM64TF6Q/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":"2026-06-02T09:43:09Z","links":{"resolver":"https://pith.science/pith/KAKIZ3KB7E2T7VOYZ4TM64TF6Q","bundle":"https://pith.science/pith/KAKIZ3KB7E2T7VOYZ4TM64TF6Q/bundle.json","state":"https://pith.science/pith/KAKIZ3KB7E2T7VOYZ4TM64TF6Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KAKIZ3KB7E2T7VOYZ4TM64TF6Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KAKIZ3KB7E2T7VOYZ4TM64TF6Q","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":"40fd3f5b73e36535c718ecbe06e5243692ec6b23304aa6c43c84b1dd5dd6ba1d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-17T08:37:18Z","title_canon_sha256":"c2319c5e9c519f4ec42ea7d768f61d3e4a369db59b160ab6bfb0d4f8938aec41"},"schema_version":"1.0","source":{"id":"1304.4730","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.4730","created_at":"2026-05-18T01:50:31Z"},{"alias_kind":"arxiv_version","alias_value":"1304.4730v1","created_at":"2026-05-18T01:50:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4730","created_at":"2026-05-18T01:50:31Z"},{"alias_kind":"pith_short_12","alias_value":"KAKIZ3KB7E2T","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KAKIZ3KB7E2T7VOY","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KAKIZ3KB","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:c782ac5079745adacd49bee78b028fbf385dc82012bd4ef5b970f08f17047a16","target":"graph","created_at":"2026-05-18T01:50:31Z","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":"Models of galaxy formation in a CDM universe predict that massive galaxies are surrounded by a hot, quasi-hydrostatic circumgalactic corona of slowly cooling gas, predominantly accreted from the IGM. This prediction is borne out by the cosmological hydrodynamical simulations of Crain et al., which reproduce scaling relations between the X-ray and optical properties of nearby disc galaxies. Such coronae are metal poor, but observations of the X-ray emitting circumgalactic medium (CGM) of local galaxies typically indicate enrichment to near-solar iron abundance, potentially signalling a shortcom","authors_text":"Carlos S. Frenk, Ian G. McCarthy, Joop Schaye, Robert A. Crain, Tom Theuns","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-17T08:37:18Z","title":"Enriching the hot circumgalactic medium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4730","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:b1c5ebaf539d39ad4d85583cf519a8a04698e865f288202b41aad6da294302f5","target":"record","created_at":"2026-05-18T01:50:31Z","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":"40fd3f5b73e36535c718ecbe06e5243692ec6b23304aa6c43c84b1dd5dd6ba1d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-17T08:37:18Z","title_canon_sha256":"c2319c5e9c519f4ec42ea7d768f61d3e4a369db59b160ab6bfb0d4f8938aec41"},"schema_version":"1.0","source":{"id":"1304.4730","kind":"arxiv","version":1}},"canonical_sha256":"50148ced41f9353fd5d8cf26cf7265f42d3d433028c9e6757c2b9ef0a3bbb120","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50148ced41f9353fd5d8cf26cf7265f42d3d433028c9e6757c2b9ef0a3bbb120","first_computed_at":"2026-05-18T01:50:31.823212Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:31.823212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UoOzODGc0a0xcZVyqi1fVJTwa9TvNlvkV4yPLK2oWWGTWlJ2y84QvDGwu1l1U+55HWxVJvA3IzEGgVQ71VD3CA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:31.823842Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.4730","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1c5ebaf539d39ad4d85583cf519a8a04698e865f288202b41aad6da294302f5","sha256:c782ac5079745adacd49bee78b028fbf385dc82012bd4ef5b970f08f17047a16"],"state_sha256":"f08380ea128ec7237a31fc3ff27144b880396d6245e98210015668798af66b49"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i/8rCW5LOFBaUuGzHmYaUrVXME1KJTx6dmC3wLtUY27CZ0NWq4MbP9iTDNG9Yf2F+DdbQvzDtntXPG3kuxO1Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T09:43:09.419697Z","bundle_sha256":"7b395e1febd4572e7d73588b576dc8941b1bdfe770bdf37d2ac9d8cca75698d7"}}