{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:ZWB4LASITVRPO7KKCEZ6VQKTEO","short_pith_number":"pith:ZWB4LASI","canonical_record":{"source":{"id":"1506.01387","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-06-03T20:09:58Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"e0a9ffd58569a91247f35c1e596f5d7bc345d38d1a786dcb47c820b7bed00865","abstract_canon_sha256":"092bbe7498b5273cf52fe8fc0fe6685f2b97a77badf227f86619636dd54ca0fd"},"schema_version":"1.0"},"canonical_sha256":"cd83c582489d62f77d4a1133eac15323a494db4b1a9180d22a781fa81d43400b","source":{"kind":"arxiv","id":"1506.01387","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.01387","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"arxiv_version","alias_value":"1506.01387v1","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.01387","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZWB4LASITVRP","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZWB4LASITVRPO7KK","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZWB4LASI","created_at":"2026-05-18T12:29:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:ZWB4LASITVRPO7KKCEZ6VQKTEO","target":"record","payload":{"canonical_record":{"source":{"id":"1506.01387","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-06-03T20:09:58Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"e0a9ffd58569a91247f35c1e596f5d7bc345d38d1a786dcb47c820b7bed00865","abstract_canon_sha256":"092bbe7498b5273cf52fe8fc0fe6685f2b97a77badf227f86619636dd54ca0fd"},"schema_version":"1.0"},"canonical_sha256":"cd83c582489d62f77d4a1133eac15323a494db4b1a9180d22a781fa81d43400b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:33.250703Z","signature_b64":"YK+IUlTvq/iPIuxeStNto+Sbcm7cQs/G5HV8gfnbOrLNqSQJleYmn5Dqnec5wcbueybjTv303LKrAvbC5wv0Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cd83c582489d62f77d4a1133eac15323a494db4b1a9180d22a781fa81d43400b","last_reissued_at":"2026-05-18T01:36:33.250191Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:33.250191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.01387","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":"2026-05-18T01:36:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7B2bqLMyHzO7Wfj2ed26Eo6XpRucBoMVPBY9lkU1f82OdbKt9CM16pzGJ2zNQz2rrEgybpjXCm4VCqxciHpcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T23:59:03.587458Z"},"content_sha256":"f3606b01c2f4fc56ae3b15188fe5ed22119c1da8dec5882abe3e2fdd7f544972","schema_version":"1.0","event_id":"sha256:f3606b01c2f4fc56ae3b15188fe5ed22119c1da8dec5882abe3e2fdd7f544972"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:ZWB4LASITVRPO7KKCEZ6VQKTEO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetorotational instability in cool cores of galaxy clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"(2) INAF-OA Bologna, (3) Innsbruck University), C. Nipoti (1), L. Posti (1), M. Bianconi (3) ((1) Bologna University, S. Ettori (2)","submitted_at":"2015-06-03T20:09:58Z","abstract_excerpt":"Clusters of galaxies are embedded in halos of optically thin, gravitationally stratified, weakly magnetized plasma at the system's virial temperature. Due to radiative cooling and anisotropic heat conduction, such intracluster medium (ICM) is subject to local instabilities, which are combinations of the thermal, magnetothermal and heat-flux-driven buoyancy instabilities. If the ICM rotates significantly, its stability properties are substantially modified and, in particular, also the magnetorotational instability (MRI) can play an important role. We study simple models of rotating cool-core cl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.01387","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":"2026-05-18T01:36:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mXZQEN35jTYSUAV9FRhyD/qfronzQSHcB43WOaP9czRFjOERpXf/oijTjIrgxgkKfUMGCEyan9/X1+YutDfhDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T23:59:03.588094Z"},"content_sha256":"aae359c9a03b4fd5067365a453d93d0970226401694a73fdbf269a08f58b1302","schema_version":"1.0","event_id":"sha256:aae359c9a03b4fd5067365a453d93d0970226401694a73fdbf269a08f58b1302"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZWB4LASITVRPO7KKCEZ6VQKTEO/bundle.json","state_url":"https://pith.science/pith/ZWB4LASITVRPO7KKCEZ6VQKTEO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZWB4LASITVRPO7KKCEZ6VQKTEO/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":"2026-05-29T23:59:03Z","links":{"resolver":"https://pith.science/pith/ZWB4LASITVRPO7KKCEZ6VQKTEO","bundle":"https://pith.science/pith/ZWB4LASITVRPO7KKCEZ6VQKTEO/bundle.json","state":"https://pith.science/pith/ZWB4LASITVRPO7KKCEZ6VQKTEO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZWB4LASITVRPO7KKCEZ6VQKTEO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ZWB4LASITVRPO7KKCEZ6VQKTEO","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":"092bbe7498b5273cf52fe8fc0fe6685f2b97a77badf227f86619636dd54ca0fd","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-06-03T20:09:58Z","title_canon_sha256":"e0a9ffd58569a91247f35c1e596f5d7bc345d38d1a786dcb47c820b7bed00865"},"schema_version":"1.0","source":{"id":"1506.01387","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.01387","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"arxiv_version","alias_value":"1506.01387v1","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.01387","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZWB4LASITVRP","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZWB4LASITVRPO7KK","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZWB4LASI","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:aae359c9a03b4fd5067365a453d93d0970226401694a73fdbf269a08f58b1302","target":"graph","created_at":"2026-05-18T01:36:33Z","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":"Clusters of galaxies are embedded in halos of optically thin, gravitationally stratified, weakly magnetized plasma at the system's virial temperature. Due to radiative cooling and anisotropic heat conduction, such intracluster medium (ICM) is subject to local instabilities, which are combinations of the thermal, magnetothermal and heat-flux-driven buoyancy instabilities. If the ICM rotates significantly, its stability properties are substantially modified and, in particular, also the magnetorotational instability (MRI) can play an important role. We study simple models of rotating cool-core cl","authors_text":"(2) INAF-OA Bologna, (3) Innsbruck University), C. Nipoti (1), L. Posti (1), M. Bianconi (3) ((1) Bologna University, S. Ettori (2)","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-06-03T20:09:58Z","title":"Magnetorotational instability in cool cores of galaxy clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.01387","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:f3606b01c2f4fc56ae3b15188fe5ed22119c1da8dec5882abe3e2fdd7f544972","target":"record","created_at":"2026-05-18T01:36:33Z","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":"092bbe7498b5273cf52fe8fc0fe6685f2b97a77badf227f86619636dd54ca0fd","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-06-03T20:09:58Z","title_canon_sha256":"e0a9ffd58569a91247f35c1e596f5d7bc345d38d1a786dcb47c820b7bed00865"},"schema_version":"1.0","source":{"id":"1506.01387","kind":"arxiv","version":1}},"canonical_sha256":"cd83c582489d62f77d4a1133eac15323a494db4b1a9180d22a781fa81d43400b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cd83c582489d62f77d4a1133eac15323a494db4b1a9180d22a781fa81d43400b","first_computed_at":"2026-05-18T01:36:33.250191Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:33.250191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YK+IUlTvq/iPIuxeStNto+Sbcm7cQs/G5HV8gfnbOrLNqSQJleYmn5Dqnec5wcbueybjTv303LKrAvbC5wv0Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:33.250703Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.01387","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3606b01c2f4fc56ae3b15188fe5ed22119c1da8dec5882abe3e2fdd7f544972","sha256:aae359c9a03b4fd5067365a453d93d0970226401694a73fdbf269a08f58b1302"],"state_sha256":"b8675a7f199037b9eef69486310886e06b2216ef828d7447f9696a1bccd102e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RrybJgOHDbJWvnBWy1gOy/624L8N1S01IMFAqo5zs3hp01MzPQlMoZX9s6G8dbTcGD6DUg5NqiZD4qVCTc3zBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T23:59:03.590916Z","bundle_sha256":"f6fd5ad88617dac41d3929db68f0c08720dcb38d4b7cba3b4f05abb622b586e1"}}