{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:C27WBIXXDDBFRTXZCXPDJLJDFU","short_pith_number":"pith:C27WBIXX","canonical_record":{"source":{"id":"2608.07722","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-07T19:19:34Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"c7f1039385f104b6c476921f1380dfa0067f5a0a1464c0dd1d24c2b6768848f5","abstract_canon_sha256":"246714e57eddfe3a63a9e15fb099fd5940502e37943a796d229f3291574dc1f3"},"schema_version":"1.0"},"canonical_sha256":"16bf60a2f718c258cef915de34ad232d1b7d8fdb60dbf46ab1dda6dcef4e5359","source":{"kind":"arxiv","id":"2608.07722","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.07722","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"arxiv_version","alias_value":"2608.07722v1","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.07722","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"pith_short_12","alias_value":"C27WBIXXDDBF","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"pith_short_16","alias_value":"C27WBIXXDDBFRTXZ","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"pith_short_8","alias_value":"C27WBIXX","created_at":"2026-08-11T00:15:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:C27WBIXXDDBFRTXZCXPDJLJDFU","target":"record","payload":{"canonical_record":{"source":{"id":"2608.07722","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-07T19:19:34Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"c7f1039385f104b6c476921f1380dfa0067f5a0a1464c0dd1d24c2b6768848f5","abstract_canon_sha256":"246714e57eddfe3a63a9e15fb099fd5940502e37943a796d229f3291574dc1f3"},"schema_version":"1.0"},"canonical_sha256":"16bf60a2f718c258cef915de34ad232d1b7d8fdb60dbf46ab1dda6dcef4e5359","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-11T00:15:47.063964Z","signature_b64":"GtUaembgQ4n1HS4ujazmk0Uu9NaBWYRYi56+++ZOc8ZcKeCfM3haTkjNQFh0ANhhsmbDEXwoNnNIEPhsiFypDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"16bf60a2f718c258cef915de34ad232d1b7d8fdb60dbf46ab1dda6dcef4e5359","last_reissued_at":"2026-08-11T00:15:47.061608Z","signature_status":"signed_v1","first_computed_at":"2026-08-11T00:15:47.061608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.07722","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":"2026-08-11T00:15:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EgRfBpYxqNLaRCBQ9ljmfyCE30JTNyEkVDGI4z4YnNwRAIv0pcm22tsyC06L7IJgiOhOWb0yB03DbIyMoqTLDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T09:07:24.549101Z"},"content_sha256":"4c279477d1999f98f8faa1453092ff3a970fd65a159397c8fef760dfc60e367c","schema_version":"1.0","event_id":"sha256:4c279477d1999f98f8faa1453092ff3a970fd65a159397c8fef760dfc60e367c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:C27WBIXXDDBFRTXZCXPDJLJDFU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neural Operators for Immersed-Boundary Soft Swimmers Locomotion","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"cs.LG","authors_text":"Mohammad Sadegh Eshaghi, Navid Valizadeh, Timon Rabczuk, Xiaoying Zhuang, Yizheng Wang","submitted_at":"2026-08-07T19:19:34Z","abstract_excerpt":"High-fidelity immersed-boundary simulation resolves the coupled motion of a deforming swimmer and its surrounding flow, but the resulting cost limits repeated evaluations for engineering design, parameter studies, and control. We develop neural-operator surrogates for temporal prediction of the hydrodynamic fields generated by planar and volumetric eel swimmers. The surrogates are trained on regular-grid fields exported from adaptive fluid--structure simulations and are conditioned on swimmer geometry and Reynolds number. The planar model jointly predicts two velocity components, scalar vortic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.07722","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.07722/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-08-11T00:15:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5gz4YqkjW50vKVf1R0/azUZ7Wpj7vLkfwbdZlwl/ovziPu5lga1HG4Fb2SOoUmh5zNPkZZ15gqV6FGZhrh4YBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T09:07:24.549703Z"},"content_sha256":"7780353f02f36b9dbcf4a45a55fe8d7546e51dcc5177d37c716f87bd008b07ac","schema_version":"1.0","event_id":"sha256:7780353f02f36b9dbcf4a45a55fe8d7546e51dcc5177d37c716f87bd008b07ac"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C27WBIXXDDBFRTXZCXPDJLJDFU/bundle.json","state_url":"https://pith.science/pith/C27WBIXXDDBFRTXZCXPDJLJDFU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C27WBIXXDDBFRTXZCXPDJLJDFU/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":"2026-08-14T09:07:24Z","links":{"resolver":"https://pith.science/pith/C27WBIXXDDBFRTXZCXPDJLJDFU","bundle":"https://pith.science/pith/C27WBIXXDDBFRTXZCXPDJLJDFU/bundle.json","state":"https://pith.science/pith/C27WBIXXDDBFRTXZCXPDJLJDFU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C27WBIXXDDBFRTXZCXPDJLJDFU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:C27WBIXXDDBFRTXZCXPDJLJDFU","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":"246714e57eddfe3a63a9e15fb099fd5940502e37943a796d229f3291574dc1f3","cross_cats_sorted":["physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-07T19:19:34Z","title_canon_sha256":"c7f1039385f104b6c476921f1380dfa0067f5a0a1464c0dd1d24c2b6768848f5"},"schema_version":"1.0","source":{"id":"2608.07722","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.07722","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"arxiv_version","alias_value":"2608.07722v1","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.07722","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"pith_short_12","alias_value":"C27WBIXXDDBF","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"pith_short_16","alias_value":"C27WBIXXDDBFRTXZ","created_at":"2026-08-11T00:15:47Z"},{"alias_kind":"pith_short_8","alias_value":"C27WBIXX","created_at":"2026-08-11T00:15:47Z"}],"graph_snapshots":[{"event_id":"sha256:7780353f02f36b9dbcf4a45a55fe8d7546e51dcc5177d37c716f87bd008b07ac","target":"graph","created_at":"2026-08-11T00:15:47Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2608.07722/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"High-fidelity immersed-boundary simulation resolves the coupled motion of a deforming swimmer and its surrounding flow, but the resulting cost limits repeated evaluations for engineering design, parameter studies, and control. We develop neural-operator surrogates for temporal prediction of the hydrodynamic fields generated by planar and volumetric eel swimmers. The surrogates are trained on regular-grid fields exported from adaptive fluid--structure simulations and are conditioned on swimmer geometry and Reynolds number. The planar model jointly predicts two velocity components, scalar vortic","authors_text":"Mohammad Sadegh Eshaghi, Navid Valizadeh, Timon Rabczuk, Xiaoying Zhuang, Yizheng Wang","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-07T19:19:34Z","title":"Neural Operators for Immersed-Boundary Soft Swimmers Locomotion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.07722","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":"sha256:4c279477d1999f98f8faa1453092ff3a970fd65a159397c8fef760dfc60e367c","target":"record","created_at":"2026-08-11T00:15:47Z","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":"246714e57eddfe3a63a9e15fb099fd5940502e37943a796d229f3291574dc1f3","cross_cats_sorted":["physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-07T19:19:34Z","title_canon_sha256":"c7f1039385f104b6c476921f1380dfa0067f5a0a1464c0dd1d24c2b6768848f5"},"schema_version":"1.0","source":{"id":"2608.07722","kind":"arxiv","version":1}},"canonical_sha256":"16bf60a2f718c258cef915de34ad232d1b7d8fdb60dbf46ab1dda6dcef4e5359","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16bf60a2f718c258cef915de34ad232d1b7d8fdb60dbf46ab1dda6dcef4e5359","first_computed_at":"2026-08-11T00:15:47.061608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-11T00:15:47.061608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GtUaembgQ4n1HS4ujazmk0Uu9NaBWYRYi56+++ZOc8ZcKeCfM3haTkjNQFh0ANhhsmbDEXwoNnNIEPhsiFypDg==","signature_status":"signed_v1","signed_at":"2026-08-11T00:15:47.063964Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.07722","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c279477d1999f98f8faa1453092ff3a970fd65a159397c8fef760dfc60e367c","sha256:7780353f02f36b9dbcf4a45a55fe8d7546e51dcc5177d37c716f87bd008b07ac"],"state_sha256":"8f903452b31e093d976f45dcba21226e6b7bc3520eac030432d1a3b09bf50993"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vQrwqoDAiJuoApSEhiIAMoMau89o2jPY0b62/3hwDLIwmidiAge58SGUL6QSeJQUcthad3WnH5ZGy9wGksC2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T09:07:24.554815Z","bundle_sha256":"c234916173c71b0d0561e7a062e93dbda137217d0644803ba18a579ec4193e12"}}