{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:I4IQCHSJWY4NABRZSL346KO7SF","short_pith_number":"pith:I4IQCHSJ","canonical_record":{"source":{"id":"1707.02304","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-07-07T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"13e8ee15975cfdfe0d63ab96935734ebb722768c7a5ee4632f047773c311338f","abstract_canon_sha256":"e56b34731d8327bd53966b1150d3bc1d828b410126daf0dc9e70424230320c06"},"schema_version":"1.0"},"canonical_sha256":"4711011e49b638d0063992f7cf29df917d69b2e8386685f156418bd2c9e95ebf","source":{"kind":"arxiv","id":"1707.02304","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.02304","created_at":"2026-05-18T00:03:50Z"},{"alias_kind":"arxiv_version","alias_value":"1707.02304v1","created_at":"2026-05-18T00:03:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.02304","created_at":"2026-05-18T00:03:50Z"},{"alias_kind":"pith_short_12","alias_value":"I4IQCHSJWY4N","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"I4IQCHSJWY4NABRZ","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"I4IQCHSJ","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:I4IQCHSJWY4NABRZSL346KO7SF","target":"record","payload":{"canonical_record":{"source":{"id":"1707.02304","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-07-07T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"13e8ee15975cfdfe0d63ab96935734ebb722768c7a5ee4632f047773c311338f","abstract_canon_sha256":"e56b34731d8327bd53966b1150d3bc1d828b410126daf0dc9e70424230320c06"},"schema_version":"1.0"},"canonical_sha256":"4711011e49b638d0063992f7cf29df917d69b2e8386685f156418bd2c9e95ebf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:50.148535Z","signature_b64":"7GLK01BsAhDh60tFKGvwly4pjN1/CnORCeQV0v/M9IwWF5bNMXrXlFIfEKXbkh9Uy/BjdFIcjcVj05DyNTYVCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4711011e49b638d0063992f7cf29df917d69b2e8386685f156418bd2c9e95ebf","last_reissued_at":"2026-05-18T00:03:50.147925Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:50.147925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.02304","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":"2026-05-18T00:03:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dcTUgeFSm8ogTs2d4abiC8Ku3qXeZl5/UihzihbCGdTJObrkPiR0xItehS+lWF0qJe/cSadUsTaIqR33UkjrAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:26:21.485850Z"},"content_sha256":"97e75fe86f9f812aca1e46cf11b48eb4c455b0d8ee90d7ff9132d89a0b14272c","schema_version":"1.0","event_id":"sha256:97e75fe86f9f812aca1e46cf11b48eb4c455b0d8ee90d7ff9132d89a0b14272c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:I4IQCHSJWY4NABRZSL346KO7SF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gas perturbations in cool cores of galaxy clusters: effective equation of state, velocity power spectra and turbulent heating","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. B. Mantz (Stanford), I. Zhuravleva (Stanford), N. Werner (Lendulet), S. W. Allen (Stanford/SLAC)","submitted_at":"2017-07-07T18:00:01Z","abstract_excerpt":"We present the statistical analysis of X-ray surface brightness and gas density fluctuations in cool cores of ten, nearby and bright galaxy clusters that have deep Chandra observations and show observational indications of radio-mechanical AGN feedback. Within the central parts of cool cores the total variance of fluctuations is dominated by isobaric and/or isothermal fluctuations on spatial scales ~ 10-60 kpc, which are likely associated with slow gas motions and bubbles of relativistic plasma. Adiabatic fluctuations associated with weak shocks constitute less than 10 per cent of the total va"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.02304","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":"2026-05-18T00:03:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WXsYp2cvl7wFzr2GA2a0KefoQt8AEl6gqXSDPlYqjrRPG7CFVyvCWhWTcRvaQjURHO9rHrPUib7I41oE6dOwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:26:21.486567Z"},"content_sha256":"a46c3348e2f05daebf6191a3a0b5a7c7dfe890c45ec2569790030663302af4ac","schema_version":"1.0","event_id":"sha256:a46c3348e2f05daebf6191a3a0b5a7c7dfe890c45ec2569790030663302af4ac"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I4IQCHSJWY4NABRZSL346KO7SF/bundle.json","state_url":"https://pith.science/pith/I4IQCHSJWY4NABRZSL346KO7SF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I4IQCHSJWY4NABRZSL346KO7SF/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":"2026-05-26T03:26:21Z","links":{"resolver":"https://pith.science/pith/I4IQCHSJWY4NABRZSL346KO7SF","bundle":"https://pith.science/pith/I4IQCHSJWY4NABRZSL346KO7SF/bundle.json","state":"https://pith.science/pith/I4IQCHSJWY4NABRZSL346KO7SF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I4IQCHSJWY4NABRZSL346KO7SF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:I4IQCHSJWY4NABRZSL346KO7SF","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":"e56b34731d8327bd53966b1150d3bc1d828b410126daf0dc9e70424230320c06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-07-07T18:00:01Z","title_canon_sha256":"13e8ee15975cfdfe0d63ab96935734ebb722768c7a5ee4632f047773c311338f"},"schema_version":"1.0","source":{"id":"1707.02304","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.02304","created_at":"2026-05-18T00:03:50Z"},{"alias_kind":"arxiv_version","alias_value":"1707.02304v1","created_at":"2026-05-18T00:03:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.02304","created_at":"2026-05-18T00:03:50Z"},{"alias_kind":"pith_short_12","alias_value":"I4IQCHSJWY4N","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"I4IQCHSJWY4NABRZ","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"I4IQCHSJ","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:a46c3348e2f05daebf6191a3a0b5a7c7dfe890c45ec2569790030663302af4ac","target":"graph","created_at":"2026-05-18T00:03:50Z","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"},"paper":{"abstract_excerpt":"We present the statistical analysis of X-ray surface brightness and gas density fluctuations in cool cores of ten, nearby and bright galaxy clusters that have deep Chandra observations and show observational indications of radio-mechanical AGN feedback. Within the central parts of cool cores the total variance of fluctuations is dominated by isobaric and/or isothermal fluctuations on spatial scales ~ 10-60 kpc, which are likely associated with slow gas motions and bubbles of relativistic plasma. Adiabatic fluctuations associated with weak shocks constitute less than 10 per cent of the total va","authors_text":"A. B. Mantz (Stanford), I. Zhuravleva (Stanford), N. Werner (Lendulet), S. W. Allen (Stanford/SLAC)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-07-07T18:00:01Z","title":"Gas perturbations in cool cores of galaxy clusters: effective equation of state, velocity power spectra and turbulent heating"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.02304","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":"sha256:97e75fe86f9f812aca1e46cf11b48eb4c455b0d8ee90d7ff9132d89a0b14272c","target":"record","created_at":"2026-05-18T00:03:50Z","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":"e56b34731d8327bd53966b1150d3bc1d828b410126daf0dc9e70424230320c06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-07-07T18:00:01Z","title_canon_sha256":"13e8ee15975cfdfe0d63ab96935734ebb722768c7a5ee4632f047773c311338f"},"schema_version":"1.0","source":{"id":"1707.02304","kind":"arxiv","version":1}},"canonical_sha256":"4711011e49b638d0063992f7cf29df917d69b2e8386685f156418bd2c9e95ebf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4711011e49b638d0063992f7cf29df917d69b2e8386685f156418bd2c9e95ebf","first_computed_at":"2026-05-18T00:03:50.147925Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:50.147925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7GLK01BsAhDh60tFKGvwly4pjN1/CnORCeQV0v/M9IwWF5bNMXrXlFIfEKXbkh9Uy/BjdFIcjcVj05DyNTYVCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:50.148535Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.02304","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97e75fe86f9f812aca1e46cf11b48eb4c455b0d8ee90d7ff9132d89a0b14272c","sha256:a46c3348e2f05daebf6191a3a0b5a7c7dfe890c45ec2569790030663302af4ac"],"state_sha256":"61df8d003832f3b822c55330938f6312d12202de46dcebb79e46612b53142adb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FOr3V1QTRXKyxPNUVkvjqy6OUHNXaaFqXVdLr6mc7DL3JaIivsZA3OpIiBhT2icFy8Ti+VIAmlYiuPqETqguBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:26:21.490235Z","bundle_sha256":"b6b2f6dbddb8bf11919cfe1e574a45a77e0b27fb928977df876cb3791ec6d73e"}}