{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:L4FLIGDDV632DKRVUGGYXP2V5V","short_pith_number":"pith:L4FLIGDD","canonical_record":{"source":{"id":"1902.07291","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-02-19T21:24:38Z","cross_cats_sorted":[],"title_canon_sha256":"b300af478dd1effa25ae6ba22b55220954b616e8959830b05144d6eb02a4e81a","abstract_canon_sha256":"0aac876b74222d47f23e657773883f413c9ad9acf63e29c692af77fbd305c2e1"},"schema_version":"1.0"},"canonical_sha256":"5f0ab41863afb7a1aa35a18d8bbf55ed52a9672e5a14c31b7a237e4b8876350c","source":{"kind":"arxiv","id":"1902.07291","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.07291","created_at":"2026-05-17T23:49:38Z"},{"alias_kind":"arxiv_version","alias_value":"1902.07291v1","created_at":"2026-05-17T23:49:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.07291","created_at":"2026-05-17T23:49:38Z"},{"alias_kind":"pith_short_12","alias_value":"L4FLIGDDV632","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"L4FLIGDDV632DKRV","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"L4FLIGDD","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:L4FLIGDDV632DKRVUGGYXP2V5V","target":"record","payload":{"canonical_record":{"source":{"id":"1902.07291","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-02-19T21:24:38Z","cross_cats_sorted":[],"title_canon_sha256":"b300af478dd1effa25ae6ba22b55220954b616e8959830b05144d6eb02a4e81a","abstract_canon_sha256":"0aac876b74222d47f23e657773883f413c9ad9acf63e29c692af77fbd305c2e1"},"schema_version":"1.0"},"canonical_sha256":"5f0ab41863afb7a1aa35a18d8bbf55ed52a9672e5a14c31b7a237e4b8876350c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:38.905753Z","signature_b64":"6AE92A9keIZZwtv3GpjGa7Kt2h/v37B2GGHUBftClBly+B2xiRuYlUopRgW+DwFKkDaaj+ih2w2MoVhJyaPiDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f0ab41863afb7a1aa35a18d8bbf55ed52a9672e5a14c31b7a237e4b8876350c","last_reissued_at":"2026-05-17T23:49:38.905221Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:38.905221Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.07291","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":"2026-05-17T23:49:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Izd8c0ZTTJ5osy7TKMp46zB7qSJgcJv4A4PDAhYJPvN16febDpCEB9/XM1kGNkL1VjZZn5FH+w0B6AfVqizaBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T10:19:52.666634Z"},"content_sha256":"3132e39bf225183f27e460acda05c4826cb53d789d9de54ae131f1c9bd9d928b","schema_version":"1.0","event_id":"sha256:3132e39bf225183f27e460acda05c4826cb53d789d9de54ae131f1c9bd9d928b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:L4FLIGDDV632DKRVUGGYXP2V5V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A multifiltering study of turbulence in a large sample of simulated galaxy clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"R. Valdarnini","submitted_at":"2019-02-19T21:24:38Z","abstract_excerpt":"We present results from a large set of N-body/SPH hydrodynamical cluster simulations aimed at studying the statistical properties of turbulence in the ICM. The numerical hydrodynamical scheme employs a SPH formulation in which gradient errors are strongly reduced by using an integral approach. We consider both adiabatic and radiative simulations. We construct clusters subsamples according to the cluster dynamical status or gas physical modeling, from which we extract small-scale turbulent velocities obtained by applying to cluster velocities different multiscale filtering methods. The velocity"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.07291","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":"2026-05-17T23:49:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pi0pzYaqaJIuOsfur/MhT3dl5xoLU/po1cDSHVvbKSJq1C4qo9RpQ4iVx/cS79ce6I4vtSNsjLnCj61Qia9fBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T10:19:52.666972Z"},"content_sha256":"d27e21329090c3a2a4fb582f344a0e24c0ce4c4f75dec33733064c5dcea6db5e","schema_version":"1.0","event_id":"sha256:d27e21329090c3a2a4fb582f344a0e24c0ce4c4f75dec33733064c5dcea6db5e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L4FLIGDDV632DKRVUGGYXP2V5V/bundle.json","state_url":"https://pith.science/pith/L4FLIGDDV632DKRVUGGYXP2V5V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L4FLIGDDV632DKRVUGGYXP2V5V/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":"2026-06-27T10:19:52Z","links":{"resolver":"https://pith.science/pith/L4FLIGDDV632DKRVUGGYXP2V5V","bundle":"https://pith.science/pith/L4FLIGDDV632DKRVUGGYXP2V5V/bundle.json","state":"https://pith.science/pith/L4FLIGDDV632DKRVUGGYXP2V5V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L4FLIGDDV632DKRVUGGYXP2V5V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:L4FLIGDDV632DKRVUGGYXP2V5V","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":"0aac876b74222d47f23e657773883f413c9ad9acf63e29c692af77fbd305c2e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-02-19T21:24:38Z","title_canon_sha256":"b300af478dd1effa25ae6ba22b55220954b616e8959830b05144d6eb02a4e81a"},"schema_version":"1.0","source":{"id":"1902.07291","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.07291","created_at":"2026-05-17T23:49:38Z"},{"alias_kind":"arxiv_version","alias_value":"1902.07291v1","created_at":"2026-05-17T23:49:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.07291","created_at":"2026-05-17T23:49:38Z"},{"alias_kind":"pith_short_12","alias_value":"L4FLIGDDV632","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"L4FLIGDDV632DKRV","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"L4FLIGDD","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:d27e21329090c3a2a4fb582f344a0e24c0ce4c4f75dec33733064c5dcea6db5e","target":"graph","created_at":"2026-05-17T23:49:38Z","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 results from a large set of N-body/SPH hydrodynamical cluster simulations aimed at studying the statistical properties of turbulence in the ICM. The numerical hydrodynamical scheme employs a SPH formulation in which gradient errors are strongly reduced by using an integral approach. We consider both adiabatic and radiative simulations. We construct clusters subsamples according to the cluster dynamical status or gas physical modeling, from which we extract small-scale turbulent velocities obtained by applying to cluster velocities different multiscale filtering methods. The velocity","authors_text":"R. Valdarnini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-02-19T21:24:38Z","title":"A multifiltering study of turbulence in a large sample of simulated galaxy clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.07291","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":"sha256:3132e39bf225183f27e460acda05c4826cb53d789d9de54ae131f1c9bd9d928b","target":"record","created_at":"2026-05-17T23:49:38Z","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":"0aac876b74222d47f23e657773883f413c9ad9acf63e29c692af77fbd305c2e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-02-19T21:24:38Z","title_canon_sha256":"b300af478dd1effa25ae6ba22b55220954b616e8959830b05144d6eb02a4e81a"},"schema_version":"1.0","source":{"id":"1902.07291","kind":"arxiv","version":1}},"canonical_sha256":"5f0ab41863afb7a1aa35a18d8bbf55ed52a9672e5a14c31b7a237e4b8876350c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f0ab41863afb7a1aa35a18d8bbf55ed52a9672e5a14c31b7a237e4b8876350c","first_computed_at":"2026-05-17T23:49:38.905221Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:38.905221Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6AE92A9keIZZwtv3GpjGa7Kt2h/v37B2GGHUBftClBly+B2xiRuYlUopRgW+DwFKkDaaj+ih2w2MoVhJyaPiDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:38.905753Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.07291","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3132e39bf225183f27e460acda05c4826cb53d789d9de54ae131f1c9bd9d928b","sha256:d27e21329090c3a2a4fb582f344a0e24c0ce4c4f75dec33733064c5dcea6db5e"],"state_sha256":"b14f8a6af0980f2b211e5d2cbcdea8475699ac125e0a7bddad7fb38e9f62f100"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dD4WE7gvtICbULx5yQCWs8R8pdB++ta/7naGWtyx+wdDgnhAebpU+CsnEIT7oKNxOtsBjRm1qjV4PdC5oJybBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T10:19:52.669045Z","bundle_sha256":"db8aaa6959f4ebd5a85875864e7553a1c6d3c3055694e91b666d8eeedbba14f3"}}