{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:5MKCMF5HN4NCBK3ED7L6255YET","short_pith_number":"pith:5MKCMF5H","canonical_record":{"source":{"id":"1208.2809","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-08-14T08:37:47Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"c2a674a0a2a3b150f609edd4a38928eaa4a54a66cdad9dd65beabaa9e61f8b6f","abstract_canon_sha256":"bf171b1cc4e874f3f5409b22ad513ce0a5a3db29ff091d06f7a5f529d59a76fc"},"schema_version":"1.0"},"canonical_sha256":"eb142617a76f1a20ab641fd7ed77b824fd45ca781b57b3fd22fae1bdc4ea4fce","source":{"kind":"arxiv","id":"1208.2809","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.2809","created_at":"2026-05-18T01:55:16Z"},{"alias_kind":"arxiv_version","alias_value":"1208.2809v1","created_at":"2026-05-18T01:55:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.2809","created_at":"2026-05-18T01:55:16Z"},{"alias_kind":"pith_short_12","alias_value":"5MKCMF5HN4NC","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"5MKCMF5HN4NCBK3E","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"5MKCMF5H","created_at":"2026-05-18T12:26:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:5MKCMF5HN4NCBK3ED7L6255YET","target":"record","payload":{"canonical_record":{"source":{"id":"1208.2809","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-08-14T08:37:47Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"c2a674a0a2a3b150f609edd4a38928eaa4a54a66cdad9dd65beabaa9e61f8b6f","abstract_canon_sha256":"bf171b1cc4e874f3f5409b22ad513ce0a5a3db29ff091d06f7a5f529d59a76fc"},"schema_version":"1.0"},"canonical_sha256":"eb142617a76f1a20ab641fd7ed77b824fd45ca781b57b3fd22fae1bdc4ea4fce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:16.194625Z","signature_b64":"ZxhwhoP5xd85YWyMT5lwRsBts0/YrykOD1cUuhznbyU69ozHgZv6Uk6d2y6K9iVCmioIBy90/0rL8Uguf0xzCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb142617a76f1a20ab641fd7ed77b824fd45ca781b57b3fd22fae1bdc4ea4fce","last_reissued_at":"2026-05-18T01:55:16.193972Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:16.193972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.2809","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":"2026-05-18T01:55:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1v6NYnV6aeMXgC2sGBUZ3isOjGdt4qodrtgyyp1+j9E1PrwRuZwnyiRKXme3y/D2b4JxiqpoGHDQSOffcWszAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T23:43:30.185180Z"},"content_sha256":"c4adef8804c16b64490f2f6f660a193e6930a3e5b0fae030c30765613e15fdd1","schema_version":"1.0","event_id":"sha256:c4adef8804c16b64490f2f6f660a193e6930a3e5b0fae030c30765613e15fdd1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:5MKCMF5HN4NCBK3ED7L6255YET","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterizing flows with an instrumented particle measuring Lagrangian accelerations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.flu-dyn","authors_text":"Jean-Fran\\c{c}ois Pinton, Lionel Fiabane, Robert Zimmermann, Romain Volk, Yoann Gasteuil","submitted_at":"2012-08-14T08:37:47Z","abstract_excerpt":"We present in this article a novel Lagrangian measurement technique: an instrumented particle which continuously transmits the force/acceleration acting on it as it is advected in a flow. We develop signal processing methods to extract information on the flow from the acceleration signal transmitted by the particle. Notably, we are able to characterize the force acting on the particle and to identify the presence of a permanent large-scale vortex structure. Our technique provides a fast, robust and efficient tool to characterize flows, and it is particularly suited to obtain Lagrangian statist"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.2809","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":"2026-05-18T01:55:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m0tQkgoog0LLM+Js9SR1qZqXFQT2pcLs9ROPCCQoVwyNES+gx4U2W+bnQ5fEaX+Yqr2Lt/701TnX0AVcvQhcCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T23:43:30.185560Z"},"content_sha256":"bd507726025614858b034ba0a9f7500dfdc9342b0cc86c9f4493a4d9b884eff3","schema_version":"1.0","event_id":"sha256:bd507726025614858b034ba0a9f7500dfdc9342b0cc86c9f4493a4d9b884eff3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5MKCMF5HN4NCBK3ED7L6255YET/bundle.json","state_url":"https://pith.science/pith/5MKCMF5HN4NCBK3ED7L6255YET/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5MKCMF5HN4NCBK3ED7L6255YET/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":"2026-06-20T23:43:30Z","links":{"resolver":"https://pith.science/pith/5MKCMF5HN4NCBK3ED7L6255YET","bundle":"https://pith.science/pith/5MKCMF5HN4NCBK3ED7L6255YET/bundle.json","state":"https://pith.science/pith/5MKCMF5HN4NCBK3ED7L6255YET/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5MKCMF5HN4NCBK3ED7L6255YET/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:5MKCMF5HN4NCBK3ED7L6255YET","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":"bf171b1cc4e874f3f5409b22ad513ce0a5a3db29ff091d06f7a5f529d59a76fc","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-08-14T08:37:47Z","title_canon_sha256":"c2a674a0a2a3b150f609edd4a38928eaa4a54a66cdad9dd65beabaa9e61f8b6f"},"schema_version":"1.0","source":{"id":"1208.2809","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.2809","created_at":"2026-05-18T01:55:16Z"},{"alias_kind":"arxiv_version","alias_value":"1208.2809v1","created_at":"2026-05-18T01:55:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.2809","created_at":"2026-05-18T01:55:16Z"},{"alias_kind":"pith_short_12","alias_value":"5MKCMF5HN4NC","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"5MKCMF5HN4NCBK3E","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"5MKCMF5H","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:bd507726025614858b034ba0a9f7500dfdc9342b0cc86c9f4493a4d9b884eff3","target":"graph","created_at":"2026-05-18T01:55:16Z","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 in this article a novel Lagrangian measurement technique: an instrumented particle which continuously transmits the force/acceleration acting on it as it is advected in a flow. We develop signal processing methods to extract information on the flow from the acceleration signal transmitted by the particle. Notably, we are able to characterize the force acting on the particle and to identify the presence of a permanent large-scale vortex structure. Our technique provides a fast, robust and efficient tool to characterize flows, and it is particularly suited to obtain Lagrangian statist","authors_text":"Jean-Fran\\c{c}ois Pinton, Lionel Fiabane, Robert Zimmermann, Romain Volk, Yoann Gasteuil","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-08-14T08:37:47Z","title":"Characterizing flows with an instrumented particle measuring Lagrangian accelerations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.2809","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:c4adef8804c16b64490f2f6f660a193e6930a3e5b0fae030c30765613e15fdd1","target":"record","created_at":"2026-05-18T01:55:16Z","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":"bf171b1cc4e874f3f5409b22ad513ce0a5a3db29ff091d06f7a5f529d59a76fc","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-08-14T08:37:47Z","title_canon_sha256":"c2a674a0a2a3b150f609edd4a38928eaa4a54a66cdad9dd65beabaa9e61f8b6f"},"schema_version":"1.0","source":{"id":"1208.2809","kind":"arxiv","version":1}},"canonical_sha256":"eb142617a76f1a20ab641fd7ed77b824fd45ca781b57b3fd22fae1bdc4ea4fce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb142617a76f1a20ab641fd7ed77b824fd45ca781b57b3fd22fae1bdc4ea4fce","first_computed_at":"2026-05-18T01:55:16.193972Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:16.193972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZxhwhoP5xd85YWyMT5lwRsBts0/YrykOD1cUuhznbyU69ozHgZv6Uk6d2y6K9iVCmioIBy90/0rL8Uguf0xzCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:16.194625Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.2809","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c4adef8804c16b64490f2f6f660a193e6930a3e5b0fae030c30765613e15fdd1","sha256:bd507726025614858b034ba0a9f7500dfdc9342b0cc86c9f4493a4d9b884eff3"],"state_sha256":"9d8ef026d472b52a135b501ffab74f97160ae94629acab9bdd878c9dfcdb9293"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5SIGfppNf19HRhOQgb3bubcUdQfxJ1vGNiOB1MTPhrtPj8P/FMIp1N/x4l8UQMkScIgccVL/2e+xjyofY2NIAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T23:43:30.187557Z","bundle_sha256":"ffbd373a0cb344fd816e8a10a8649d951b506b53c6a4278f74c6eafaaba6ade1"}}