{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:7B2NASW5LSDKCKERPJ3BYMX72V","short_pith_number":"pith:7B2NASW5","canonical_record":{"source":{"id":"1005.1207","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-07T13:56:26Z","cross_cats_sorted":[],"title_canon_sha256":"f23c7f30f77aec085a9cfea29fbe1b5f0e0ffa4c5ec6bd8566d5cd03de415bf1","abstract_canon_sha256":"290b6c560e2849e944b6d6dc347d8c9e1d020ac7ac8721174b7deed4e622dab8"},"schema_version":"1.0"},"canonical_sha256":"f874d04add5c86a128917a761c32ffd54cfd2ff7113ec2de0e0ad093be90e270","source":{"kind":"arxiv","id":"1005.1207","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.1207","created_at":"2026-05-18T02:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"1005.1207v2","created_at":"2026-05-18T02:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.1207","created_at":"2026-05-18T02:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"7B2NASW5LSDK","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"7B2NASW5LSDKCKER","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"7B2NASW5","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:7B2NASW5LSDKCKERPJ3BYMX72V","target":"record","payload":{"canonical_record":{"source":{"id":"1005.1207","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-07T13:56:26Z","cross_cats_sorted":[],"title_canon_sha256":"f23c7f30f77aec085a9cfea29fbe1b5f0e0ffa4c5ec6bd8566d5cd03de415bf1","abstract_canon_sha256":"290b6c560e2849e944b6d6dc347d8c9e1d020ac7ac8721174b7deed4e622dab8"},"schema_version":"1.0"},"canonical_sha256":"f874d04add5c86a128917a761c32ffd54cfd2ff7113ec2de0e0ad093be90e270","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:07:41.689909Z","signature_b64":"2cv0grQK8J7uBkQB25tLrksPIeyrKKrS5+tmKjaPpxp0Inx5TGB0i4YM1YnwiLiJqrC+6waNj0Whi9Zk4pHBDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f874d04add5c86a128917a761c32ffd54cfd2ff7113ec2de0e0ad093be90e270","last_reissued_at":"2026-05-18T02:07:41.689244Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:07:41.689244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1005.1207","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":"2026-05-18T02:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MyQG/i8qBITgrvjbRzDapulUpzxxILTIDiA2K+iZEOaNtxk1VkJm20uIx8G6IVNhfqbTD0qk4KxvXoj+YUWgAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T16:36:43.587500Z"},"content_sha256":"b61cb1e1dc83339b8a4ea9784b1fdb9fc9ca1de9c6d22d76b11f18280fd396d1","schema_version":"1.0","event_id":"sha256:b61cb1e1dc83339b8a4ea9784b1fdb9fc9ca1de9c6d22d76b11f18280fd396d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:7B2NASW5LSDKCKERPJ3BYMX72V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Herschel observations of FIR emission lines in brightest cluster galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. C. Edge, A. C. Fabian, A. C. Quillen, B. R. McNamara, C. L. Sarazin, C. P. O'Dea, C. S. Crawford, E. Egami, F. Combes, G. J. Ferland, G. M. Voit, H. Boehringer, J. B. R. Oonk, J. N. Bregman, M. Donahue, M. N. Bremer, M. W. Wise, N. A. Hatch, P. Popesso, P. Salome, R. J. Wilman, R. Mittal, R. M. Johnstone, S. A. Baum, S. L. Hamer, S. W. Allen, W. Jaffe","submitted_at":"2010-05-07T13:56:26Z","abstract_excerpt":"The question of how much gas cools in the cores of clusters of galaxies has been the focus of many, multiwavelength studies in the past 30 years. In this letter we present the first detections of the strongest atomic cooling lines, [C II], [O I] and [N I] in two strong cooling flow clusters, A1068 and A2597, using Herschel PACS. These spectra indicate that the substantial mass of cold molecular gas (>10^9 Mo) known to be present in these systems is being irradiated by intense UV radiation, most probably from young stars. The line widths of these FIR lines indicate that they share dynamics simi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.1207","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":""},"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":"2026-05-18T02:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BhD1ul3q/kR/f604i4As3vzkq/GuvbFzyDZUQx+it+plJGya4pq2WUMX+cX4DaDmnpBLv1Wc7ZhfkQPGSMtSCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T16:36:43.587850Z"},"content_sha256":"3e3e174f76bda4ef81c9bd0b24523df4a9bf70e678a4dbd9d1f7bfece4bfb163","schema_version":"1.0","event_id":"sha256:3e3e174f76bda4ef81c9bd0b24523df4a9bf70e678a4dbd9d1f7bfece4bfb163"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7B2NASW5LSDKCKERPJ3BYMX72V/bundle.json","state_url":"https://pith.science/pith/7B2NASW5LSDKCKERPJ3BYMX72V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7B2NASW5LSDKCKERPJ3BYMX72V/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":"2026-05-19T16:36:43Z","links":{"resolver":"https://pith.science/pith/7B2NASW5LSDKCKERPJ3BYMX72V","bundle":"https://pith.science/pith/7B2NASW5LSDKCKERPJ3BYMX72V/bundle.json","state":"https://pith.science/pith/7B2NASW5LSDKCKERPJ3BYMX72V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7B2NASW5LSDKCKERPJ3BYMX72V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:7B2NASW5LSDKCKERPJ3BYMX72V","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":"290b6c560e2849e944b6d6dc347d8c9e1d020ac7ac8721174b7deed4e622dab8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-07T13:56:26Z","title_canon_sha256":"f23c7f30f77aec085a9cfea29fbe1b5f0e0ffa4c5ec6bd8566d5cd03de415bf1"},"schema_version":"1.0","source":{"id":"1005.1207","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.1207","created_at":"2026-05-18T02:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"1005.1207v2","created_at":"2026-05-18T02:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.1207","created_at":"2026-05-18T02:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"7B2NASW5LSDK","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"7B2NASW5LSDKCKER","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"7B2NASW5","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:3e3e174f76bda4ef81c9bd0b24523df4a9bf70e678a4dbd9d1f7bfece4bfb163","target":"graph","created_at":"2026-05-18T02:07:41Z","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":"The question of how much gas cools in the cores of clusters of galaxies has been the focus of many, multiwavelength studies in the past 30 years. In this letter we present the first detections of the strongest atomic cooling lines, [C II], [O I] and [N I] in two strong cooling flow clusters, A1068 and A2597, using Herschel PACS. These spectra indicate that the substantial mass of cold molecular gas (>10^9 Mo) known to be present in these systems is being irradiated by intense UV radiation, most probably from young stars. The line widths of these FIR lines indicate that they share dynamics simi","authors_text":"A. C. Edge, A. C. Fabian, A. C. Quillen, B. R. McNamara, C. L. Sarazin, C. P. O'Dea, C. S. Crawford, E. Egami, F. Combes, G. J. Ferland, G. M. Voit, H. Boehringer, J. B. R. Oonk, J. N. Bregman, M. Donahue, M. N. Bremer, M. W. Wise, N. A. Hatch, P. Popesso, P. Salome, R. J. Wilman, R. Mittal, R. M. Johnstone, S. A. Baum, S. L. Hamer, S. W. Allen, W. Jaffe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-07T13:56:26Z","title":"Herschel observations of FIR emission lines in brightest cluster galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.1207","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:b61cb1e1dc83339b8a4ea9784b1fdb9fc9ca1de9c6d22d76b11f18280fd396d1","target":"record","created_at":"2026-05-18T02:07:41Z","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":"290b6c560e2849e944b6d6dc347d8c9e1d020ac7ac8721174b7deed4e622dab8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-07T13:56:26Z","title_canon_sha256":"f23c7f30f77aec085a9cfea29fbe1b5f0e0ffa4c5ec6bd8566d5cd03de415bf1"},"schema_version":"1.0","source":{"id":"1005.1207","kind":"arxiv","version":2}},"canonical_sha256":"f874d04add5c86a128917a761c32ffd54cfd2ff7113ec2de0e0ad093be90e270","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f874d04add5c86a128917a761c32ffd54cfd2ff7113ec2de0e0ad093be90e270","first_computed_at":"2026-05-18T02:07:41.689244Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:41.689244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2cv0grQK8J7uBkQB25tLrksPIeyrKKrS5+tmKjaPpxp0Inx5TGB0i4YM1YnwiLiJqrC+6waNj0Whi9Zk4pHBDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:41.689909Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.1207","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b61cb1e1dc83339b8a4ea9784b1fdb9fc9ca1de9c6d22d76b11f18280fd396d1","sha256:3e3e174f76bda4ef81c9bd0b24523df4a9bf70e678a4dbd9d1f7bfece4bfb163"],"state_sha256":"f092fde889b77c08f193ae84ff474814ee0ce6f47bcf47dd0073ec2e9068f9ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QITE30+/xGK6I9nJRqn1XoU8bNYi+1QTa/PJMloqYeTvdI/zji//+wrUKER2chFuXUhAfZF8xJQBWw6obb5FAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T16:36:43.589920Z","bundle_sha256":"2bc121d3b210c46113e97c1a2e603b986dbf81a8134ad1283e026a815f5cbd0d"}}