{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:JPEXASKIRDX67HPRNDFLWBIDYP","short_pith_number":"pith:JPEXASKI","canonical_record":{"source":{"id":"1907.06242","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-14T16:17:52Z","cross_cats_sorted":[],"title_canon_sha256":"de3aa5658c59a7391a23c8a8c14de07244fa0645d15dfea3f58d120b54fc08d0","abstract_canon_sha256":"0f8b06415cae30043c6866aab4b7ee97ac8ce0e94d6533a72f65f35a35e5eb15"},"schema_version":"1.0"},"canonical_sha256":"4bc970494888efef9df168cabb0503c3f77e6b03cd15c1ca25b47d9a40d6425c","source":{"kind":"arxiv","id":"1907.06242","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.06242","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"arxiv_version","alias_value":"1907.06242v1","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.06242","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"pith_short_12","alias_value":"JPEXASKIRDX6","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"JPEXASKIRDX67HPR","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"JPEXASKI","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:JPEXASKIRDX67HPRNDFLWBIDYP","target":"record","payload":{"canonical_record":{"source":{"id":"1907.06242","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-14T16:17:52Z","cross_cats_sorted":[],"title_canon_sha256":"de3aa5658c59a7391a23c8a8c14de07244fa0645d15dfea3f58d120b54fc08d0","abstract_canon_sha256":"0f8b06415cae30043c6866aab4b7ee97ac8ce0e94d6533a72f65f35a35e5eb15"},"schema_version":"1.0"},"canonical_sha256":"4bc970494888efef9df168cabb0503c3f77e6b03cd15c1ca25b47d9a40d6425c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:38.157708Z","signature_b64":"PVypFD9yGPMI07RXPsLgffUFGeBdVmDJintRlqyTbosOFA7w0mQ6nA0EuPiUVXh7CVokK5HItRpcxn1/Y6TsBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4bc970494888efef9df168cabb0503c3f77e6b03cd15c1ca25b47d9a40d6425c","last_reissued_at":"2026-05-17T23:40:38.153712Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:38.153712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.06242","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":"2026-05-17T23:40:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"49qv4WFeIDpoDHLNZ4ERxRdzQIWbVezYmxjrC5SLiMkw9w1EKTr68l8Ji8fFO1KkP2PmWuDL6AMWTCc2C2UxCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T03:30:57.999003Z"},"content_sha256":"0b878e773e6ca5f8d6095013841f3f7c9b50ace83eaa34a2543441f5dab9aa9b","schema_version":"1.0","event_id":"sha256:0b878e773e6ca5f8d6095013841f3f7c9b50ace83eaa34a2543441f5dab9aa9b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:JPEXASKIRDX67HPRNDFLWBIDYP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Self-sustaining process of minimal attached eddies in turbulent channel flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Yacine Bengana, Yongyun Hwang","submitted_at":"2019-07-14T16:17:52Z","abstract_excerpt":"It has been recently shown that the energy-containing motions in turbulent channel flow exist in the form of Townsend's attached eddies by a numerical experiment which simulates the energy-containing motions only at a prescribed spanwise length scale using their self-sustaining nature (Hwang, 2015, J. Fluid Mech., 767, p254). In the present study, a detailed investigation of the self-sustaining process of the energy-containing motions at each spanwise length scale (i.e. the attached eddies) in the logarithmic and outer regions is carried out with an emphasis on its relevance to 'bursting', whi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.06242","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":"2026-05-17T23:40:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r1jmneUuK6ds8c/npqAp9gXcoT/soPI7lW4/mPQdZqgqoewQ4L7Gvpkzhhz4+XKrXvEtK7NsxLJiSanfs212Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T03:30:57.999366Z"},"content_sha256":"db6061f17f21ead516dca6ca6d71338d10e543dc9892608470da700fda2f7a1d","schema_version":"1.0","event_id":"sha256:db6061f17f21ead516dca6ca6d71338d10e543dc9892608470da700fda2f7a1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JPEXASKIRDX67HPRNDFLWBIDYP/bundle.json","state_url":"https://pith.science/pith/JPEXASKIRDX67HPRNDFLWBIDYP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JPEXASKIRDX67HPRNDFLWBIDYP/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":"2026-06-23T03:30:58Z","links":{"resolver":"https://pith.science/pith/JPEXASKIRDX67HPRNDFLWBIDYP","bundle":"https://pith.science/pith/JPEXASKIRDX67HPRNDFLWBIDYP/bundle.json","state":"https://pith.science/pith/JPEXASKIRDX67HPRNDFLWBIDYP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JPEXASKIRDX67HPRNDFLWBIDYP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:JPEXASKIRDX67HPRNDFLWBIDYP","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":"0f8b06415cae30043c6866aab4b7ee97ac8ce0e94d6533a72f65f35a35e5eb15","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-14T16:17:52Z","title_canon_sha256":"de3aa5658c59a7391a23c8a8c14de07244fa0645d15dfea3f58d120b54fc08d0"},"schema_version":"1.0","source":{"id":"1907.06242","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.06242","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"arxiv_version","alias_value":"1907.06242v1","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.06242","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"pith_short_12","alias_value":"JPEXASKIRDX6","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"JPEXASKIRDX67HPR","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"JPEXASKI","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:db6061f17f21ead516dca6ca6d71338d10e543dc9892608470da700fda2f7a1d","target":"graph","created_at":"2026-05-17T23:40:38Z","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":"It has been recently shown that the energy-containing motions in turbulent channel flow exist in the form of Townsend's attached eddies by a numerical experiment which simulates the energy-containing motions only at a prescribed spanwise length scale using their self-sustaining nature (Hwang, 2015, J. Fluid Mech., 767, p254). In the present study, a detailed investigation of the self-sustaining process of the energy-containing motions at each spanwise length scale (i.e. the attached eddies) in the logarithmic and outer regions is carried out with an emphasis on its relevance to 'bursting', whi","authors_text":"Yacine Bengana, Yongyun Hwang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-14T16:17:52Z","title":"Self-sustaining process of minimal attached eddies in turbulent channel flow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.06242","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":"sha256:0b878e773e6ca5f8d6095013841f3f7c9b50ace83eaa34a2543441f5dab9aa9b","target":"record","created_at":"2026-05-17T23:40:38Z","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":"0f8b06415cae30043c6866aab4b7ee97ac8ce0e94d6533a72f65f35a35e5eb15","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-14T16:17:52Z","title_canon_sha256":"de3aa5658c59a7391a23c8a8c14de07244fa0645d15dfea3f58d120b54fc08d0"},"schema_version":"1.0","source":{"id":"1907.06242","kind":"arxiv","version":1}},"canonical_sha256":"4bc970494888efef9df168cabb0503c3f77e6b03cd15c1ca25b47d9a40d6425c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4bc970494888efef9df168cabb0503c3f77e6b03cd15c1ca25b47d9a40d6425c","first_computed_at":"2026-05-17T23:40:38.153712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:38.153712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PVypFD9yGPMI07RXPsLgffUFGeBdVmDJintRlqyTbosOFA7w0mQ6nA0EuPiUVXh7CVokK5HItRpcxn1/Y6TsBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:38.157708Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.06242","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b878e773e6ca5f8d6095013841f3f7c9b50ace83eaa34a2543441f5dab9aa9b","sha256:db6061f17f21ead516dca6ca6d71338d10e543dc9892608470da700fda2f7a1d"],"state_sha256":"98d9ea38381796a61598c2fc336479a39f6b9b0fc9169420413973ad9d695d18"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bm3bZBREU8YCTGIbkyeBfmr9gW3f71L38qYAB2ael9is4soW2JmW47oXUDyE+Tz8O71ewjK5z1nHTg0itf4zCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T03:30:58.001575Z","bundle_sha256":"696b7aa736e9f6c2d9311e89470c757539bf8d44093d7b8f307185233e67198a"}}