{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:K337NOD7DFI6JRUDFVV4KTMDG7","short_pith_number":"pith:K337NOD7","canonical_record":{"source":{"id":"2112.10940","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-21T02:06:48Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"6272830648ce73ae85e2a6f5966c9e5debc4bd76114eecf935b3caa8335b84ff","abstract_canon_sha256":"277d3d1915a8470797b07dd14d0ef9593a075b830d2285018df97c82c992fc47"},"schema_version":"1.0"},"canonical_sha256":"56f7f6b87f1951e4c6832d6bc54d8337e6e7ff52bd4ed6d16a679fd5bf711c70","source":{"kind":"arxiv","id":"2112.10940","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.10940","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"arxiv_version","alias_value":"2112.10940v1","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.10940","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"pith_short_12","alias_value":"K337NOD7DFI6","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"pith_short_16","alias_value":"K337NOD7DFI6JRUD","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"pith_short_8","alias_value":"K337NOD7","created_at":"2026-07-05T03:42:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:K337NOD7DFI6JRUDFVV4KTMDG7","target":"record","payload":{"canonical_record":{"source":{"id":"2112.10940","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-21T02:06:48Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"6272830648ce73ae85e2a6f5966c9e5debc4bd76114eecf935b3caa8335b84ff","abstract_canon_sha256":"277d3d1915a8470797b07dd14d0ef9593a075b830d2285018df97c82c992fc47"},"schema_version":"1.0"},"canonical_sha256":"56f7f6b87f1951e4c6832d6bc54d8337e6e7ff52bd4ed6d16a679fd5bf711c70","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:42:27.820649Z","signature_b64":"qpskSb6BqS1D+Kt5ccyziCLYE4aemy+3V0z18p2a8Pvr0T84dWMv68dE1z/jJHXgubnGqT7vfS02rXxN6qTsCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56f7f6b87f1951e4c6832d6bc54d8337e6e7ff52bd4ed6d16a679fd5bf711c70","last_reissued_at":"2026-07-05T03:42:27.820246Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:42:27.820246Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.10940","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":"2026-07-05T03:42:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F6iVufIpOGxJhUo+64It3T2reazZZdjxj+lPeknY/BGSLe8dQwBdFF5oPeD8KvjERPqNgfydGHzhrUCArW2tDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T23:32:18.543573Z"},"content_sha256":"0585754c23883cd02879f3c7cf01d54ab35147d12b44382fae54bd3f96328847","schema_version":"1.0","event_id":"sha256:0585754c23883cd02879f3c7cf01d54ab35147d12b44382fae54bd3f96328847"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:K337NOD7DFI6JRUDFVV4KTMDG7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Origin of cool cores, cold fronts and spiral structures in cool core clusters of galaxies","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"Hajime Inoue","submitted_at":"2021-12-21T02:06:48Z","abstract_excerpt":"We consider a situation in which a brightest cluster galaxy (BCG) moves in ambient hot gas in the central region of a cool core cluster of galaxies, following the study by Inoue (2014, PASJ, 66, 60). In the rest frame of the BCG, the hot gas is supposed to flow toward the BCG in parallel from a sufficiently large distance. Then, it is expected that only the gas flowing with the impact parameter less than a critical value is trapped by the gravitation field of the BCG because of the efficient radiative cooling, getting a cooling flow, and that the remaining outer gas can get over the potential "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.10940","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/2112.10940/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":"2026-07-05T03:42:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IlU1t7sd4Pi296j7buJoNQla+2PmWcX++baa3gO1O+hr2LSSk8VkBGOvsD+GAEBK+s4BZd+zNYo0SMDKGaHpBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T23:32:18.543960Z"},"content_sha256":"62e4ff581e0a98354c52edb322989d08f5e25024d1a3b29068f24ec11d0e9bdf","schema_version":"1.0","event_id":"sha256:62e4ff581e0a98354c52edb322989d08f5e25024d1a3b29068f24ec11d0e9bdf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K337NOD7DFI6JRUDFVV4KTMDG7/bundle.json","state_url":"https://pith.science/pith/K337NOD7DFI6JRUDFVV4KTMDG7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K337NOD7DFI6JRUDFVV4KTMDG7/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":"2026-08-12T23:32:18Z","links":{"resolver":"https://pith.science/pith/K337NOD7DFI6JRUDFVV4KTMDG7","bundle":"https://pith.science/pith/K337NOD7DFI6JRUDFVV4KTMDG7/bundle.json","state":"https://pith.science/pith/K337NOD7DFI6JRUDFVV4KTMDG7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K337NOD7DFI6JRUDFVV4KTMDG7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:K337NOD7DFI6JRUDFVV4KTMDG7","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":"277d3d1915a8470797b07dd14d0ef9593a075b830d2285018df97c82c992fc47","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-21T02:06:48Z","title_canon_sha256":"6272830648ce73ae85e2a6f5966c9e5debc4bd76114eecf935b3caa8335b84ff"},"schema_version":"1.0","source":{"id":"2112.10940","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.10940","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"arxiv_version","alias_value":"2112.10940v1","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.10940","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"pith_short_12","alias_value":"K337NOD7DFI6","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"pith_short_16","alias_value":"K337NOD7DFI6JRUD","created_at":"2026-07-05T03:42:27Z"},{"alias_kind":"pith_short_8","alias_value":"K337NOD7","created_at":"2026-07-05T03:42:27Z"}],"graph_snapshots":[{"event_id":"sha256:62e4ff581e0a98354c52edb322989d08f5e25024d1a3b29068f24ec11d0e9bdf","target":"graph","created_at":"2026-07-05T03:42:27Z","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/2112.10940/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider a situation in which a brightest cluster galaxy (BCG) moves in ambient hot gas in the central region of a cool core cluster of galaxies, following the study by Inoue (2014, PASJ, 66, 60). In the rest frame of the BCG, the hot gas is supposed to flow toward the BCG in parallel from a sufficiently large distance. Then, it is expected that only the gas flowing with the impact parameter less than a critical value is trapped by the gravitation field of the BCG because of the efficient radiative cooling, getting a cooling flow, and that the remaining outer gas can get over the potential ","authors_text":"Hajime Inoue","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-21T02:06:48Z","title":"Origin of cool cores, cold fronts and spiral structures in cool core clusters of galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.10940","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":"sha256:0585754c23883cd02879f3c7cf01d54ab35147d12b44382fae54bd3f96328847","target":"record","created_at":"2026-07-05T03:42:27Z","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":"277d3d1915a8470797b07dd14d0ef9593a075b830d2285018df97c82c992fc47","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-21T02:06:48Z","title_canon_sha256":"6272830648ce73ae85e2a6f5966c9e5debc4bd76114eecf935b3caa8335b84ff"},"schema_version":"1.0","source":{"id":"2112.10940","kind":"arxiv","version":1}},"canonical_sha256":"56f7f6b87f1951e4c6832d6bc54d8337e6e7ff52bd4ed6d16a679fd5bf711c70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56f7f6b87f1951e4c6832d6bc54d8337e6e7ff52bd4ed6d16a679fd5bf711c70","first_computed_at":"2026-07-05T03:42:27.820246Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:42:27.820246Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qpskSb6BqS1D+Kt5ccyziCLYE4aemy+3V0z18p2a8Pvr0T84dWMv68dE1z/jJHXgubnGqT7vfS02rXxN6qTsCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:42:27.820649Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.10940","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0585754c23883cd02879f3c7cf01d54ab35147d12b44382fae54bd3f96328847","sha256:62e4ff581e0a98354c52edb322989d08f5e25024d1a3b29068f24ec11d0e9bdf"],"state_sha256":"417e98b9acad78a836ecbc21122270397de2fee4bd385e5cd3b7bfca84b2e9a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IUzFWp72TexcsoHFGz2NLUuJUrhzUR9EyecXk0TG9nwiJcOZiuOa4nWvyIVhMUfzqUU3yBYEvfoZPwxqcXpqDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T23:32:18.546751Z","bundle_sha256":"4ac47d857085e17a65ef8efc657f7fffd2e6d03f370bb3cc7395b0985f186e7f"}}