{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:KAP345FSFB2MFA2XSXAZCXZC3O","short_pith_number":"pith:KAP345FS","canonical_record":{"source":{"id":"astro-ph/0611214","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-07T14:19:32Z","cross_cats_sorted":[],"title_canon_sha256":"43b17d99405e31dc7340ab67c50a81c6fde3141b53dbbd992c7c1728955b010c","abstract_canon_sha256":"34e5d77647ae542ccc32bd2ec18722d7a2ff9459341e8ecfa3f687bb8ddf57ff"},"schema_version":"1.0"},"canonical_sha256":"501fbe74b22874c2835795c1915f22db90d274e6ab01bc2d37ace2dd92b0c19f","source":{"kind":"arxiv","id":"astro-ph/0611214","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0611214","created_at":"2026-05-18T01:40:28Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0611214v1","created_at":"2026-05-18T01:40:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0611214","created_at":"2026-05-18T01:40:28Z"},{"alias_kind":"pith_short_12","alias_value":"KAP345FSFB2M","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"KAP345FSFB2MFA2X","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"KAP345FS","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:KAP345FSFB2MFA2XSXAZCXZC3O","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0611214","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-07T14:19:32Z","cross_cats_sorted":[],"title_canon_sha256":"43b17d99405e31dc7340ab67c50a81c6fde3141b53dbbd992c7c1728955b010c","abstract_canon_sha256":"34e5d77647ae542ccc32bd2ec18722d7a2ff9459341e8ecfa3f687bb8ddf57ff"},"schema_version":"1.0"},"canonical_sha256":"501fbe74b22874c2835795c1915f22db90d274e6ab01bc2d37ace2dd92b0c19f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:28.975906Z","signature_b64":"TtfNMgxUSJZN3MEDRZjatCUOw6f68QazPXZlXI3F7vGl0bc1FAglJeTAxLa/FuF5mfhk7IySN38DF0ZxrckfAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"501fbe74b22874c2835795c1915f22db90d274e6ab01bc2d37ace2dd92b0c19f","last_reissued_at":"2026-05-18T01:40:28.975467Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:28.975467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0611214","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":"2026-05-18T01:40:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/nM2Lz85XQPFqOxzC6nJUzajnFuHdb0jU0ZJs/3eBLPQ3gIDQVn17BpqdQRy/X4M2I/oE7tAA16mvR8A8srDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T07:18:17.649278Z"},"content_sha256":"115636e77ffe3511baeb82f111998f8edba710b4f8a1636f4c011e112503eb04","schema_version":"1.0","event_id":"sha256:115636e77ffe3511baeb82f111998f8edba710b4f8a1636f4c011e112503eb04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:KAP345FSFB2MFA2XSXAZCXZC3O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cold Feedback in Cooling-Flow Galaxy Clusters","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Fabio Pizzolato","submitted_at":"2006-11-07T14:19:32Z","abstract_excerpt":"We put forward an alternative view to the Bondi-driven feedback between heating and cooling of the intra-cluster medium (ICM) in cooling flow galaxies and clusters. We adopt the popular view that the heating is due to an active galactic nucleus (AGN), i.e. a central black hole accreting mass and launching jets and/or winds. We propose that the feedback occurs with the entire cool inner region (5-30 kpc). A moderate cooling flow does exist here, and non-linear over-dense blobs of gas cool fast and are removed from the ICM before experiencing the next major AGN heating event. Some of these blobs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611214","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":"2026-05-18T01:40:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wWIAXYJNhFfLMex+t4/3LosetWuDbTuFjMDMH/kwVxYxRfwitCUnF2iqE1kJ0FEKFrwf5THrDYP8qBJVlDL5CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T07:18:17.649631Z"},"content_sha256":"3fb24de2348891db3ad0505c4bc8b1b19aaab7214d2409e6412b1018600e204b","schema_version":"1.0","event_id":"sha256:3fb24de2348891db3ad0505c4bc8b1b19aaab7214d2409e6412b1018600e204b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KAP345FSFB2MFA2XSXAZCXZC3O/bundle.json","state_url":"https://pith.science/pith/KAP345FSFB2MFA2XSXAZCXZC3O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KAP345FSFB2MFA2XSXAZCXZC3O/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":"2026-06-27T07:18:17Z","links":{"resolver":"https://pith.science/pith/KAP345FSFB2MFA2XSXAZCXZC3O","bundle":"https://pith.science/pith/KAP345FSFB2MFA2XSXAZCXZC3O/bundle.json","state":"https://pith.science/pith/KAP345FSFB2MFA2XSXAZCXZC3O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KAP345FSFB2MFA2XSXAZCXZC3O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:KAP345FSFB2MFA2XSXAZCXZC3O","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":"34e5d77647ae542ccc32bd2ec18722d7a2ff9459341e8ecfa3f687bb8ddf57ff","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-07T14:19:32Z","title_canon_sha256":"43b17d99405e31dc7340ab67c50a81c6fde3141b53dbbd992c7c1728955b010c"},"schema_version":"1.0","source":{"id":"astro-ph/0611214","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0611214","created_at":"2026-05-18T01:40:28Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0611214v1","created_at":"2026-05-18T01:40:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0611214","created_at":"2026-05-18T01:40:28Z"},{"alias_kind":"pith_short_12","alias_value":"KAP345FSFB2M","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"KAP345FSFB2MFA2X","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"KAP345FS","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:3fb24de2348891db3ad0505c4bc8b1b19aaab7214d2409e6412b1018600e204b","target":"graph","created_at":"2026-05-18T01:40:28Z","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 put forward an alternative view to the Bondi-driven feedback between heating and cooling of the intra-cluster medium (ICM) in cooling flow galaxies and clusters. We adopt the popular view that the heating is due to an active galactic nucleus (AGN), i.e. a central black hole accreting mass and launching jets and/or winds. We propose that the feedback occurs with the entire cool inner region (5-30 kpc). A moderate cooling flow does exist here, and non-linear over-dense blobs of gas cool fast and are removed from the ICM before experiencing the next major AGN heating event. Some of these blobs","authors_text":"Fabio Pizzolato","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-11-07T14:19:32Z","title":"Cold Feedback in Cooling-Flow Galaxy Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611214","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":"sha256:115636e77ffe3511baeb82f111998f8edba710b4f8a1636f4c011e112503eb04","target":"record","created_at":"2026-05-18T01:40:28Z","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":"34e5d77647ae542ccc32bd2ec18722d7a2ff9459341e8ecfa3f687bb8ddf57ff","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-07T14:19:32Z","title_canon_sha256":"43b17d99405e31dc7340ab67c50a81c6fde3141b53dbbd992c7c1728955b010c"},"schema_version":"1.0","source":{"id":"astro-ph/0611214","kind":"arxiv","version":1}},"canonical_sha256":"501fbe74b22874c2835795c1915f22db90d274e6ab01bc2d37ace2dd92b0c19f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"501fbe74b22874c2835795c1915f22db90d274e6ab01bc2d37ace2dd92b0c19f","first_computed_at":"2026-05-18T01:40:28.975467Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:28.975467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TtfNMgxUSJZN3MEDRZjatCUOw6f68QazPXZlXI3F7vGl0bc1FAglJeTAxLa/FuF5mfhk7IySN38DF0ZxrckfAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:28.975906Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0611214","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:115636e77ffe3511baeb82f111998f8edba710b4f8a1636f4c011e112503eb04","sha256:3fb24de2348891db3ad0505c4bc8b1b19aaab7214d2409e6412b1018600e204b"],"state_sha256":"c54cffd4d7b9aed9fbe34233f6e35b84ab4d47f5ecce6180673ab8d3b3c27e03"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+eZDzUfpiyBgixMX1/7oJq5gmfOcQlzyXK/rXgJB57MRhSLHM6L92ndbRBukiWI6Q9LULDdxjJs5HOf9EWimBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T07:18:17.651490Z","bundle_sha256":"cefc37a96b9d4806837d109b91b5ba9f8331ea8bf48d0b4a6dc9d444285b7493"}}