{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:BPA2JOVWS3MMT7Z5Q6CAFHXWAL","short_pith_number":"pith:BPA2JOVW","canonical_record":{"source":{"id":"1009.4333","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-22T11:48:29Z","cross_cats_sorted":[],"title_canon_sha256":"fbe5710087b3dc0f85477964976d990101a750bc52e0127e3936df3c44597ca5","abstract_canon_sha256":"d5d81194bcb144f90d1fc4566c0d7e4113f4697c020d53435acc2052874d2621"},"schema_version":"1.0"},"canonical_sha256":"0bc1a4bab696d8c9ff3d8784029ef602e816a460543a787cf66f75686e2c35f3","source":{"kind":"arxiv","id":"1009.4333","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4333","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4333v1","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4333","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"pith_short_12","alias_value":"BPA2JOVWS3MM","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"BPA2JOVWS3MMT7Z5","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"BPA2JOVW","created_at":"2026-05-18T12:26:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:BPA2JOVWS3MMT7Z5Q6CAFHXWAL","target":"record","payload":{"canonical_record":{"source":{"id":"1009.4333","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-22T11:48:29Z","cross_cats_sorted":[],"title_canon_sha256":"fbe5710087b3dc0f85477964976d990101a750bc52e0127e3936df3c44597ca5","abstract_canon_sha256":"d5d81194bcb144f90d1fc4566c0d7e4113f4697c020d53435acc2052874d2621"},"schema_version":"1.0"},"canonical_sha256":"0bc1a4bab696d8c9ff3d8784029ef602e816a460543a787cf66f75686e2c35f3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:18.731378Z","signature_b64":"LQO3r2yvIGsTJgNLdopF6YS19kUZQHirVPnFQigPjBBr6KwC2ffrOkE1bnLec1Cy1S9XIUwWfjOZRIa0bazXCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0bc1a4bab696d8c9ff3d8784029ef602e816a460543a787cf66f75686e2c35f3","last_reissued_at":"2026-05-18T02:05:18.730847Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:18.730847Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.4333","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":"2026-05-18T02:05:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f1ygbKVhix7y6DjD3hyzibJC7FKOkatEC4uKxrOgY9tvpMbcIy4aOOp7YtqmM5XmA8esrM+Q/ljmhapyAqrGDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T01:32:05.116771Z"},"content_sha256":"c65ae9d53b249ecfd8e1b387e2e291aba2d108fc55f7c41301ebdc7594c51d76","schema_version":"1.0","event_id":"sha256:c65ae9d53b249ecfd8e1b387e2e291aba2d108fc55f7c41301ebdc7594c51d76"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:BPA2JOVWS3MMT7Z5Q6CAFHXWAL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct Measurement of Effective Magnetic Diffusivity in Turbulent Flow of Liquid Sodium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Peter Frick, Rodion Stepanov, Sergey Denisov, Vitaliy Noskov","submitted_at":"2010-09-22T11:48:29Z","abstract_excerpt":"The first direct measurements of effective magnetic diffusivity in turbulent flow of electro-conductive fluids (the so-called beta-effect) under magnetic Reynolds number Rm >> 1 are reported. The measurements are performed in a nonstationary turbulent flow of liquid sodium, generated in a closed toroidal channel. The peak level of the Reynolds number reached Re \\approx 3 10^6, which corresponds to the magnetic Reynolds number Rm \\approx 30. The magnetic diffusivity of the liquid metal was determined by measuring the phase shift between the induced and the applied magnetic fields. The maximal d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4333","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":"2026-05-18T02:05:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zargdukN9zCtee/uuZacTrTp9m1Be70pQHJLwytTkWRVhBQYr8E8QvWkTd7CcYSr6JiwtISGUJXj0/3oemHVAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T01:32:05.117349Z"},"content_sha256":"5eddd85d39f7892cde93031cb36502d9081f60bcc321d423f721a5574b5a4bde","schema_version":"1.0","event_id":"sha256:5eddd85d39f7892cde93031cb36502d9081f60bcc321d423f721a5574b5a4bde"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BPA2JOVWS3MMT7Z5Q6CAFHXWAL/bundle.json","state_url":"https://pith.science/pith/BPA2JOVWS3MMT7Z5Q6CAFHXWAL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BPA2JOVWS3MMT7Z5Q6CAFHXWAL/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":"2026-05-20T01:32:05Z","links":{"resolver":"https://pith.science/pith/BPA2JOVWS3MMT7Z5Q6CAFHXWAL","bundle":"https://pith.science/pith/BPA2JOVWS3MMT7Z5Q6CAFHXWAL/bundle.json","state":"https://pith.science/pith/BPA2JOVWS3MMT7Z5Q6CAFHXWAL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BPA2JOVWS3MMT7Z5Q6CAFHXWAL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:BPA2JOVWS3MMT7Z5Q6CAFHXWAL","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":"d5d81194bcb144f90d1fc4566c0d7e4113f4697c020d53435acc2052874d2621","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-22T11:48:29Z","title_canon_sha256":"fbe5710087b3dc0f85477964976d990101a750bc52e0127e3936df3c44597ca5"},"schema_version":"1.0","source":{"id":"1009.4333","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4333","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4333v1","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4333","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"pith_short_12","alias_value":"BPA2JOVWS3MM","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"BPA2JOVWS3MMT7Z5","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"BPA2JOVW","created_at":"2026-05-18T12:26:05Z"}],"graph_snapshots":[{"event_id":"sha256:5eddd85d39f7892cde93031cb36502d9081f60bcc321d423f721a5574b5a4bde","target":"graph","created_at":"2026-05-18T02:05:18Z","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 first direct measurements of effective magnetic diffusivity in turbulent flow of electro-conductive fluids (the so-called beta-effect) under magnetic Reynolds number Rm >> 1 are reported. The measurements are performed in a nonstationary turbulent flow of liquid sodium, generated in a closed toroidal channel. The peak level of the Reynolds number reached Re \\approx 3 10^6, which corresponds to the magnetic Reynolds number Rm \\approx 30. The magnetic diffusivity of the liquid metal was determined by measuring the phase shift between the induced and the applied magnetic fields. The maximal d","authors_text":"Peter Frick, Rodion Stepanov, Sergey Denisov, Vitaliy Noskov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-22T11:48:29Z","title":"Direct Measurement of Effective Magnetic Diffusivity in Turbulent Flow of Liquid Sodium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4333","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:c65ae9d53b249ecfd8e1b387e2e291aba2d108fc55f7c41301ebdc7594c51d76","target":"record","created_at":"2026-05-18T02:05:18Z","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":"d5d81194bcb144f90d1fc4566c0d7e4113f4697c020d53435acc2052874d2621","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-09-22T11:48:29Z","title_canon_sha256":"fbe5710087b3dc0f85477964976d990101a750bc52e0127e3936df3c44597ca5"},"schema_version":"1.0","source":{"id":"1009.4333","kind":"arxiv","version":1}},"canonical_sha256":"0bc1a4bab696d8c9ff3d8784029ef602e816a460543a787cf66f75686e2c35f3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0bc1a4bab696d8c9ff3d8784029ef602e816a460543a787cf66f75686e2c35f3","first_computed_at":"2026-05-18T02:05:18.730847Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:18.730847Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LQO3r2yvIGsTJgNLdopF6YS19kUZQHirVPnFQigPjBBr6KwC2ffrOkE1bnLec1Cy1S9XIUwWfjOZRIa0bazXCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:18.731378Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.4333","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c65ae9d53b249ecfd8e1b387e2e291aba2d108fc55f7c41301ebdc7594c51d76","sha256:5eddd85d39f7892cde93031cb36502d9081f60bcc321d423f721a5574b5a4bde"],"state_sha256":"1f15766e26533a1a833d388c24f00d5220e4e251f03a68a4640012fcc2d85b4c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e8TdTqzuWEg58zbjK5maRjzw5QjLNFCnL6QrUIxlVLqnjua0JOL0y/bVS0qV69NRI5yXK9/JeB/fdIRUc9kQCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T01:32:05.120626Z","bundle_sha256":"fad2b5cde366d241cc0857e11a1e8a7f0fa844de888a092511e49bf495c12cc4"}}