{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JEECY46BMMFJ6QVNKJ7IGBTMN7","short_pith_number":"pith:JEECY46B","canonical_record":{"source":{"id":"2602.13811","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2026-02-14T14:52:08Z","cross_cats_sorted":["cs.LG","physics.comp-ph"],"title_canon_sha256":"8fcec0f9b3d844ad4e719bf20687e6d2c0424fb9f866650bfb2b27cbd89913e8","abstract_canon_sha256":"08f1aa64f2625e35b8cbb34a53b5871629a806b033c308e041c92f21dfc9b1c5"},"schema_version":"1.0"},"canonical_sha256":"49082c73c1630a9f42ad527e83066c6fe44c341d84f1ad31fd85bbb600d5a852","source":{"kind":"arxiv","id":"2602.13811","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.13811","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"arxiv_version","alias_value":"2602.13811v2","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.13811","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"pith_short_12","alias_value":"JEECY46BMMFJ","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"pith_short_16","alias_value":"JEECY46BMMFJ6QVN","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"pith_short_8","alias_value":"JEECY46B","created_at":"2026-07-21T01:20:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JEECY46BMMFJ6QVNKJ7IGBTMN7","target":"record","payload":{"canonical_record":{"source":{"id":"2602.13811","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2026-02-14T14:52:08Z","cross_cats_sorted":["cs.LG","physics.comp-ph"],"title_canon_sha256":"8fcec0f9b3d844ad4e719bf20687e6d2c0424fb9f866650bfb2b27cbd89913e8","abstract_canon_sha256":"08f1aa64f2625e35b8cbb34a53b5871629a806b033c308e041c92f21dfc9b1c5"},"schema_version":"1.0"},"canonical_sha256":"49082c73c1630a9f42ad527e83066c6fe44c341d84f1ad31fd85bbb600d5a852","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-21T01:20:43.880472Z","signature_b64":"Du/UkcQoOfK+69cygCLBjSmi7Cbjd5j54qQO6Vyx8EklxF/N2Juq4VxkE0DpAvigSjbNjBgNE0iXDhuv1HxGAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49082c73c1630a9f42ad527e83066c6fe44c341d84f1ad31fd85bbb600d5a852","last_reissued_at":"2026-07-21T01:20:43.879503Z","signature_status":"signed_v1","first_computed_at":"2026-07-21T01:20:43.879503Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.13811","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-21T01:20:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vf7I3JgRghywI5rLJkOYiG3emFtUT5jcbsWWCr+C4J8DKjL5xBwtgBg4mvxbxJjs9PYK37ISFwo1NOiZ3IMgDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T22:35:28.155901Z"},"content_sha256":"7829b6c15a4c322c050a83bc82996f58ccadc9eefd8a24a4b0750a22295687d4","schema_version":"1.0","event_id":"sha256:7829b6c15a4c322c050a83bc82996f58ccadc9eefd8a24a4b0750a22295687d4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JEECY46BMMFJ6QVNKJ7IGBTMN7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Unified Physics-Informed Neural Network for Modeling Coupled Electro- and Elastodynamic Wave Propagation Using Three-Stage Loss Optimization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","physics.comp-ph"],"primary_cat":"cs.NE","authors_text":"Reuben Thomas Thovelil, Suhas Suresh Bharadwaj","submitted_at":"2026-02-14T14:52:08Z","abstract_excerpt":"Physics-Informed Neural Networks present a novel approach in SciML that integrates physical laws in the form of partial differential equations directly into the NN through soft constraints in the loss function. This work studies the application of PINNs to solve a one dimensional coupled electro-elastodynamic system modeling linear piezoelectricity in stress-charge form, governed by elastodynamic and electrodynamic equations. Our simulation employs a feedforward architecture, mapping space-time coordinates to mechanical displacement and electric potential. Our PINN model achieved global relati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.13811","kind":"arxiv","version":2},"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/2602.13811/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":"2026-07-21T01:20:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fGs5/Er4lcTrD1XHpYRQSKMKPEP3IjnoNyXtlslq0OaTtYSIvIrs49vGK1VTYI7lLtRr0oY6yHs8dwvE4l9AAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T22:35:28.156387Z"},"content_sha256":"86cbf05750b8455afd330088c8cc8761133ee5dd2aac6cdb1095492d82ea487c","schema_version":"1.0","event_id":"sha256:86cbf05750b8455afd330088c8cc8761133ee5dd2aac6cdb1095492d82ea487c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JEECY46BMMFJ6QVNKJ7IGBTMN7/bundle.json","state_url":"https://pith.science/pith/JEECY46BMMFJ6QVNKJ7IGBTMN7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JEECY46BMMFJ6QVNKJ7IGBTMN7/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":"2026-08-05T22:35:28Z","links":{"resolver":"https://pith.science/pith/JEECY46BMMFJ6QVNKJ7IGBTMN7","bundle":"https://pith.science/pith/JEECY46BMMFJ6QVNKJ7IGBTMN7/bundle.json","state":"https://pith.science/pith/JEECY46BMMFJ6QVNKJ7IGBTMN7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JEECY46BMMFJ6QVNKJ7IGBTMN7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JEECY46BMMFJ6QVNKJ7IGBTMN7","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":"08f1aa64f2625e35b8cbb34a53b5871629a806b033c308e041c92f21dfc9b1c5","cross_cats_sorted":["cs.LG","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2026-02-14T14:52:08Z","title_canon_sha256":"8fcec0f9b3d844ad4e719bf20687e6d2c0424fb9f866650bfb2b27cbd89913e8"},"schema_version":"1.0","source":{"id":"2602.13811","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.13811","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"arxiv_version","alias_value":"2602.13811v2","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.13811","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"pith_short_12","alias_value":"JEECY46BMMFJ","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"pith_short_16","alias_value":"JEECY46BMMFJ6QVN","created_at":"2026-07-21T01:20:43Z"},{"alias_kind":"pith_short_8","alias_value":"JEECY46B","created_at":"2026-07-21T01:20:43Z"}],"graph_snapshots":[{"event_id":"sha256:86cbf05750b8455afd330088c8cc8761133ee5dd2aac6cdb1095492d82ea487c","target":"graph","created_at":"2026-07-21T01:20:43Z","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/2602.13811/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Physics-Informed Neural Networks present a novel approach in SciML that integrates physical laws in the form of partial differential equations directly into the NN through soft constraints in the loss function. This work studies the application of PINNs to solve a one dimensional coupled electro-elastodynamic system modeling linear piezoelectricity in stress-charge form, governed by elastodynamic and electrodynamic equations. Our simulation employs a feedforward architecture, mapping space-time coordinates to mechanical displacement and electric potential. Our PINN model achieved global relati","authors_text":"Reuben Thomas Thovelil, Suhas Suresh Bharadwaj","cross_cats":["cs.LG","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2026-02-14T14:52:08Z","title":"A Unified Physics-Informed Neural Network for Modeling Coupled Electro- and Elastodynamic Wave Propagation Using Three-Stage Loss Optimization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.13811","kind":"arxiv","version":2},"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":"sha256:7829b6c15a4c322c050a83bc82996f58ccadc9eefd8a24a4b0750a22295687d4","target":"record","created_at":"2026-07-21T01:20:43Z","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":"08f1aa64f2625e35b8cbb34a53b5871629a806b033c308e041c92f21dfc9b1c5","cross_cats_sorted":["cs.LG","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2026-02-14T14:52:08Z","title_canon_sha256":"8fcec0f9b3d844ad4e719bf20687e6d2c0424fb9f866650bfb2b27cbd89913e8"},"schema_version":"1.0","source":{"id":"2602.13811","kind":"arxiv","version":2}},"canonical_sha256":"49082c73c1630a9f42ad527e83066c6fe44c341d84f1ad31fd85bbb600d5a852","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49082c73c1630a9f42ad527e83066c6fe44c341d84f1ad31fd85bbb600d5a852","first_computed_at":"2026-07-21T01:20:43.879503Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-21T01:20:43.879503Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Du/UkcQoOfK+69cygCLBjSmi7Cbjd5j54qQO6Vyx8EklxF/N2Juq4VxkE0DpAvigSjbNjBgNE0iXDhuv1HxGAg==","signature_status":"signed_v1","signed_at":"2026-07-21T01:20:43.880472Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.13811","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7829b6c15a4c322c050a83bc82996f58ccadc9eefd8a24a4b0750a22295687d4","sha256:86cbf05750b8455afd330088c8cc8761133ee5dd2aac6cdb1095492d82ea487c"],"state_sha256":"2c2987461164244ee522ff5a96aefb023029c3be832870366fc4f96ceda84d16"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AWP42SghaDcAYGq2xUF4Ouwi9RckTZ2CTeEyQzfWXvetevE1thZysqiDXNMpXAmygqTDgcxjnHgIcOS7mfx/BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T22:35:28.159627Z","bundle_sha256":"fa41c3cec3d2df00000b48314430edacd82c442897b6eeaf24f74682df8fa468"}}