{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:AQTTOD37VFBKNSKOKOQYZBMEKP","short_pith_number":"pith:AQTTOD37","canonical_record":{"source":{"id":"2605.15379","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-14T20:09:33Z","cross_cats_sorted":["cs.SY","physics.flu-dyn"],"title_canon_sha256":"ac3472087915b514e0dbd835b1be140fffa98b9ebf48a8d2f0fcf1af145eea5d","abstract_canon_sha256":"d3cb9ab6465cd48205037a7928ef2aa852a4fec7795416c0c3d3fc475c3bdff2"},"schema_version":"1.0"},"canonical_sha256":"0427370f7fa942a6c94e53a18c858453e6a07a6794fdd6daed14e03caa93c31e","source":{"kind":"arxiv","id":"2605.15379","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.15379","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"arxiv_version","alias_value":"2605.15379v1","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.15379","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"pith_short_12","alias_value":"AQTTOD37VFBK","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"pith_short_16","alias_value":"AQTTOD37VFBKNSKO","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"pith_short_8","alias_value":"AQTTOD37","created_at":"2026-05-20T00:00:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:AQTTOD37VFBKNSKOKOQYZBMEKP","target":"record","payload":{"canonical_record":{"source":{"id":"2605.15379","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-14T20:09:33Z","cross_cats_sorted":["cs.SY","physics.flu-dyn"],"title_canon_sha256":"ac3472087915b514e0dbd835b1be140fffa98b9ebf48a8d2f0fcf1af145eea5d","abstract_canon_sha256":"d3cb9ab6465cd48205037a7928ef2aa852a4fec7795416c0c3d3fc475c3bdff2"},"schema_version":"1.0"},"canonical_sha256":"0427370f7fa942a6c94e53a18c858453e6a07a6794fdd6daed14e03caa93c31e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:00:55.380723Z","signature_b64":"/S+w6L5NCScJVIFKKAEdDocFxTxBse2MgbiVzRZDWLIeKiHPNMQ1+PvrjfqJ3HsGVI5ZddMw3UGCPWsmoUj6BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0427370f7fa942a6c94e53a18c858453e6a07a6794fdd6daed14e03caa93c31e","last_reissued_at":"2026-05-20T00:00:55.379933Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:00:55.379933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.15379","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":"2026-05-20T00:00:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xkwLWzZY77N/FXPhYkN3Byu2fTRoPen0z9WlljccRCGClAdmA4r7RujjjAKJUGfyQZqPlCuUBVMjtRIANnZxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T12:00:01.107387Z"},"content_sha256":"06f874cc66dd8ce4fb12fa5ce86fcc5bfa4922b837301a3075672b3546db5303","schema_version":"1.0","event_id":"sha256:06f874cc66dd8ce4fb12fa5ce86fcc5bfa4922b837301a3075672b3546db5303"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:AQTTOD37VFBKNSKOKOQYZBMEKP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Variational Lagrangian Framework for Log-Homotopy Particle Flow Filters","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"Treating particle flow as pressureless fluid motion and minimizing a kinetic energy action under continuity and log-homotopy constraints produces an irrotational potential flow governed by a Hamilton-Jacobi equation isomorphic to Madelung's","cross_cats":["cs.SY","physics.flu-dyn"],"primary_cat":"eess.SY","authors_text":"Domonkos Csuzdi, Oliv\\'er T\\\"or\\H{o}, Tam\\'as B\\'ecsi","submitted_at":"2026-05-14T20:09:33Z","abstract_excerpt":"The log-homotopy particle flow filter resolves the Bayesian update by transporting particles along a continuous trajectory in pseudo-time. However, the governing partial differential equation for the flow velocity is fundamentally underdetermined, admitting an infinite family of valid solutions. In this work, we regard the particle flow as the motion of a pressureless inviscid fluid. We define a Lagrangian action based on the kinetic energy of the system, subject to the constraints imposed by the continuity equation and the log-homotopy evolution. By applying the principle of least action, we "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Applying the principle of least action to a Lagrangian defined by kinetic energy subject to the continuity equation and log-homotopy evolution yields Euler-Lagrange equations that produce an irrotational potential flow, resulting in a coupled Hamilton-Jacobi equation structurally isomorphic to Madelung's hydrodynamic formulation of quantum mechanics.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The particle flow can be modeled as the motion of a pressureless inviscid fluid, allowing a well-defined Lagrangian action based solely on kinetic energy that is minimized under the continuity and log-homotopy constraints to produce the claimed optimal flow structure.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A variational Lagrangian based on kinetic energy under continuity and log-homotopy constraints produces an irrotational flow for particle filters that is structurally isomorphic to Madelung's quantum fluid equations.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Treating particle flow as pressureless fluid motion and minimizing a kinetic energy action under continuity and log-homotopy constraints produces an irrotational potential flow governed by a Hamilton-Jacobi equation isomorphic to Madelung's","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"8a75532fe34cb9393e588b2c1e635283d145b923f13a3f74332ac485b66c8f71"},"source":{"id":"2605.15379","kind":"arxiv","version":1},"verdict":{"id":"0c0710eb-45cc-40f9-ba02-61d5cbb58291","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T15:19:12.676030Z","strongest_claim":"Applying the principle of least action to a Lagrangian defined by kinetic energy subject to the continuity equation and log-homotopy evolution yields Euler-Lagrange equations that produce an irrotational potential flow, resulting in a coupled Hamilton-Jacobi equation structurally isomorphic to Madelung's hydrodynamic formulation of quantum mechanics.","one_line_summary":"A variational Lagrangian based on kinetic energy under continuity and log-homotopy constraints produces an irrotational flow for particle filters that is structurally isomorphic to Madelung's quantum fluid equations.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The particle flow can be modeled as the motion of a pressureless inviscid fluid, allowing a well-defined Lagrangian action based solely on kinetic energy that is minimized under the continuity and log-homotopy constraints to produce the claimed optimal flow structure.","pith_extraction_headline":"Treating particle flow as pressureless fluid motion and minimizing a kinetic energy action under continuity and log-homotopy constraints produces an irrotational potential flow governed by a Hamilton-Jacobi equation isomorphic to Madelung's"},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.15379/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"doi_title_agreement","ran_at":"2026-05-19T15:31:17.873165Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T15:30:44.497177Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T14:21:54.179822Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T13:33:22.731088Z","status":"skipped","version":"1.0.0","findings_count":0}],"snapshot_sha256":"cffcd4b7d44942a634b1cb12c1aadf5d129ac6c0ff24f1bf2d0b6ae8dcc993f5"},"references":{"count":29,"sample":[{"doi":"","year":2012,"title":"M.-H. Chen, Q.-M. Shao, and J. G. Ibrahim,Monte Carlo methods in Bayesian computation. Springer Science & Business Media, 2012","work_id":"74ee96c0-6d47-4e90-ae62-cb0df23ae020","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2004,"title":"C. P. Robert and G. Casella,Monte Carlo Statistical Methods. Springer, 2nd ed., 2004","work_id":"5b03207d-0325-4dfc-be7c-5bd625238455","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1993,"title":"Novel approach to nonlinear/non-Gaussian Bayesian state estimation,","work_id":"b0c741a5-d708-4610-9ad1-23333d3c94a7","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2003,"title":"Curse of dimensionality and particle filters,","work_id":"29171442-6f6c-4c86-9f8c-05d8cab88e53","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2008,"title":"Curse-of-dimensionality revisited: Collapse of the particle filter in very large scale systems,","work_id":"2da32f0e-032d-43bd-b89d-5d33080a0d64","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":29,"snapshot_sha256":"edd15239597227d9d26980400a0e7afb480e906f39dec213c49004c07bc1d2b6","internal_anchors":1},"formal_canon":{"evidence_count":2,"snapshot_sha256":"1f05b740f72553218464bf575d71a8a7b91d69e2b1f85f68aabf4e304c2f2b3f"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":"0c0710eb-45cc-40f9-ba02-61d5cbb58291"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T00:00:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2KsYbDmoEMQnvMp9dUoumJMhN7pzdJHN3qorkB7a6O58X7um1aCykuZBD7+sZwBwECI40F1Xx/UqV4e1YA7nAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T12:00:01.108540Z"},"content_sha256":"0fa4891c60d932ced3029cdbc324ff105888d0a559b2099c38f5dd712bb23a70","schema_version":"1.0","event_id":"sha256:0fa4891c60d932ced3029cdbc324ff105888d0a559b2099c38f5dd712bb23a70"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AQTTOD37VFBKNSKOKOQYZBMEKP/bundle.json","state_url":"https://pith.science/pith/AQTTOD37VFBKNSKOKOQYZBMEKP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AQTTOD37VFBKNSKOKOQYZBMEKP/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":"2026-05-27T12:00:01Z","links":{"resolver":"https://pith.science/pith/AQTTOD37VFBKNSKOKOQYZBMEKP","bundle":"https://pith.science/pith/AQTTOD37VFBKNSKOKOQYZBMEKP/bundle.json","state":"https://pith.science/pith/AQTTOD37VFBKNSKOKOQYZBMEKP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AQTTOD37VFBKNSKOKOQYZBMEKP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:AQTTOD37VFBKNSKOKOQYZBMEKP","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":"d3cb9ab6465cd48205037a7928ef2aa852a4fec7795416c0c3d3fc475c3bdff2","cross_cats_sorted":["cs.SY","physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-14T20:09:33Z","title_canon_sha256":"ac3472087915b514e0dbd835b1be140fffa98b9ebf48a8d2f0fcf1af145eea5d"},"schema_version":"1.0","source":{"id":"2605.15379","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.15379","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"arxiv_version","alias_value":"2605.15379v1","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.15379","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"pith_short_12","alias_value":"AQTTOD37VFBK","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"pith_short_16","alias_value":"AQTTOD37VFBKNSKO","created_at":"2026-05-20T00:00:55Z"},{"alias_kind":"pith_short_8","alias_value":"AQTTOD37","created_at":"2026-05-20T00:00:55Z"}],"graph_snapshots":[{"event_id":"sha256:0fa4891c60d932ced3029cdbc324ff105888d0a559b2099c38f5dd712bb23a70","target":"graph","created_at":"2026-05-20T00:00:55Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"Applying the principle of least action to a Lagrangian defined by kinetic energy subject to the continuity equation and log-homotopy evolution yields Euler-Lagrange equations that produce an irrotational potential flow, resulting in a coupled Hamilton-Jacobi equation structurally isomorphic to Madelung's hydrodynamic formulation of quantum mechanics."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The particle flow can be modeled as the motion of a pressureless inviscid fluid, allowing a well-defined Lagrangian action based solely on kinetic energy that is minimized under the continuity and log-homotopy constraints to produce the claimed optimal flow structure."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"A variational Lagrangian based on kinetic energy under continuity and log-homotopy constraints produces an irrotational flow for particle filters that is structurally isomorphic to Madelung's quantum fluid equations."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Treating particle flow as pressureless fluid motion and minimizing a kinetic energy action under continuity and log-homotopy constraints produces an irrotational potential flow governed by a Hamilton-Jacobi equation isomorphic to Madelung's"}],"snapshot_sha256":"8a75532fe34cb9393e588b2c1e635283d145b923f13a3f74332ac485b66c8f71"},"formal_canon":{"evidence_count":2,"snapshot_sha256":"1f05b740f72553218464bf575d71a8a7b91d69e2b1f85f68aabf4e304c2f2b3f"},"integrity":{"available":true,"clean":true,"detectors_run":[{"findings_count":0,"name":"doi_title_agreement","ran_at":"2026-05-19T15:31:17.873165Z","status":"completed","version":"1.0.0"},{"findings_count":0,"name":"doi_compliance","ran_at":"2026-05-19T15:30:44.497177Z","status":"completed","version":"1.0.0"},{"findings_count":0,"name":"claim_evidence","ran_at":"2026-05-19T14:21:54.179822Z","status":"completed","version":"1.0.0"},{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-19T13:33:22.731088Z","status":"skipped","version":"1.0.0"}],"endpoint":"/pith/2605.15379/integrity.json","findings":[],"snapshot_sha256":"cffcd4b7d44942a634b1cb12c1aadf5d129ac6c0ff24f1bf2d0b6ae8dcc993f5","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The log-homotopy particle flow filter resolves the Bayesian update by transporting particles along a continuous trajectory in pseudo-time. However, the governing partial differential equation for the flow velocity is fundamentally underdetermined, admitting an infinite family of valid solutions. In this work, we regard the particle flow as the motion of a pressureless inviscid fluid. We define a Lagrangian action based on the kinetic energy of the system, subject to the constraints imposed by the continuity equation and the log-homotopy evolution. By applying the principle of least action, we ","authors_text":"Domonkos Csuzdi, Oliv\\'er T\\\"or\\H{o}, Tam\\'as B\\'ecsi","cross_cats":["cs.SY","physics.flu-dyn"],"headline":"Treating particle flow as pressureless fluid motion and minimizing a kinetic energy action under continuity and log-homotopy constraints produces an irrotational potential flow governed by a Hamilton-Jacobi equation isomorphic to Madelung's","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-14T20:09:33Z","title":"A Variational Lagrangian Framework for Log-Homotopy Particle Flow Filters"},"references":{"count":29,"internal_anchors":1,"resolved_work":29,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"M.-H. Chen, Q.-M. Shao, and J. G. Ibrahim,Monte Carlo methods in Bayesian computation. Springer Science & Business Media, 2012","work_id":"74ee96c0-6d47-4e90-ae62-cb0df23ae020","year":2012},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"C. P. Robert and G. Casella,Monte Carlo Statistical Methods. Springer, 2nd ed., 2004","work_id":"5b03207d-0325-4dfc-be7c-5bd625238455","year":2004},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":3,"title":"Novel approach to nonlinear/non-Gaussian Bayesian state estimation,","work_id":"b0c741a5-d708-4610-9ad1-23333d3c94a7","year":1993},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"Curse of dimensionality and particle filters,","work_id":"29171442-6f6c-4c86-9f8c-05d8cab88e53","year":2003},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"Curse-of-dimensionality revisited: Collapse of the particle filter in very large scale systems,","work_id":"2da32f0e-032d-43bd-b89d-5d33080a0d64","year":2008}],"snapshot_sha256":"edd15239597227d9d26980400a0e7afb480e906f39dec213c49004c07bc1d2b6"},"source":{"id":"2605.15379","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-19T15:19:12.676030Z","id":"0c0710eb-45cc-40f9-ba02-61d5cbb58291","model_set":{"reader":"grok-4.3"},"one_line_summary":"A variational Lagrangian based on kinetic energy under continuity and log-homotopy constraints produces an irrotational flow for particle filters that is structurally isomorphic to Madelung's quantum fluid equations.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Treating particle flow as pressureless fluid motion and minimizing a kinetic energy action under continuity and log-homotopy constraints produces an irrotational potential flow governed by a Hamilton-Jacobi equation isomorphic to Madelung's","strongest_claim":"Applying the principle of least action to a Lagrangian defined by kinetic energy subject to the continuity equation and log-homotopy evolution yields Euler-Lagrange equations that produce an irrotational potential flow, resulting in a coupled Hamilton-Jacobi equation structurally isomorphic to Madelung's hydrodynamic formulation of quantum mechanics.","weakest_assumption":"The particle flow can be modeled as the motion of a pressureless inviscid fluid, allowing a well-defined Lagrangian action based solely on kinetic energy that is minimized under the continuity and log-homotopy constraints to produce the claimed optimal flow structure."}},"verdict_id":"0c0710eb-45cc-40f9-ba02-61d5cbb58291"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:06f874cc66dd8ce4fb12fa5ce86fcc5bfa4922b837301a3075672b3546db5303","target":"record","created_at":"2026-05-20T00:00:55Z","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":"d3cb9ab6465cd48205037a7928ef2aa852a4fec7795416c0c3d3fc475c3bdff2","cross_cats_sorted":["cs.SY","physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-05-14T20:09:33Z","title_canon_sha256":"ac3472087915b514e0dbd835b1be140fffa98b9ebf48a8d2f0fcf1af145eea5d"},"schema_version":"1.0","source":{"id":"2605.15379","kind":"arxiv","version":1}},"canonical_sha256":"0427370f7fa942a6c94e53a18c858453e6a07a6794fdd6daed14e03caa93c31e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0427370f7fa942a6c94e53a18c858453e6a07a6794fdd6daed14e03caa93c31e","first_computed_at":"2026-05-20T00:00:55.379933Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:00:55.379933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/S+w6L5NCScJVIFKKAEdDocFxTxBse2MgbiVzRZDWLIeKiHPNMQ1+PvrjfqJ3HsGVI5ZddMw3UGCPWsmoUj6BQ==","signature_status":"signed_v1","signed_at":"2026-05-20T00:00:55.380723Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.15379","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06f874cc66dd8ce4fb12fa5ce86fcc5bfa4922b837301a3075672b3546db5303","sha256:0fa4891c60d932ced3029cdbc324ff105888d0a559b2099c38f5dd712bb23a70"],"state_sha256":"132dd6facb3632d236424c64f31ec6eb7ce733c134487a5c3f614d92d4947077"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5FCdilwg3v19So8raWBBS9nRXM4/gJOF32h+NlF80j5cOGYTWeedTESWPwKqelqXrEzVkt+kKkb/14JMKXK/Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T12:00:01.113252Z","bundle_sha256":"33c822f09cfb6d7564665adeb82cfa7c459d467ab549cfb886364b2ee2cc24cc"}}