{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:OAKRBZCNIK22CTY7EAC762TOS6","short_pith_number":"pith:OAKRBZCN","canonical_record":{"source":{"id":"2407.13704","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"stat.ML","submitted_at":"2024-07-18T17:04:14Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"0564829e0f5155f71e632fd22736871b496c2abbbc376e9b31ed91fa2ad2a5f0","abstract_canon_sha256":"e10a56425ba00402e3f4d4d8c21baec8d727904bb4c29c312e4f9c4ee01168a9"},"schema_version":"1.0"},"canonical_sha256":"701510e44d42b5a14f1f2005ff6a6e979893184c5b4b1b2c02fff812479c979d","source":{"kind":"arxiv","id":"2407.13704","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.13704","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"arxiv_version","alias_value":"2407.13704v1","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.13704","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"pith_short_12","alias_value":"OAKRBZCNIK22","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"pith_short_16","alias_value":"OAKRBZCNIK22CTY7","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"pith_short_8","alias_value":"OAKRBZCN","created_at":"2026-07-05T08:45:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:OAKRBZCNIK22CTY7EAC762TOS6","target":"record","payload":{"canonical_record":{"source":{"id":"2407.13704","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"stat.ML","submitted_at":"2024-07-18T17:04:14Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"0564829e0f5155f71e632fd22736871b496c2abbbc376e9b31ed91fa2ad2a5f0","abstract_canon_sha256":"e10a56425ba00402e3f4d4d8c21baec8d727904bb4c29c312e4f9c4ee01168a9"},"schema_version":"1.0"},"canonical_sha256":"701510e44d42b5a14f1f2005ff6a6e979893184c5b4b1b2c02fff812479c979d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:45:42.691493Z","signature_b64":"O/XSjKmc4liLVv/4iNFLntHhQ/o4MpnIZ71ES8+egMf36C8yVlv22+Ir6tSAXOx9R7ROY0ytZ+HW3s44qbuNAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"701510e44d42b5a14f1f2005ff6a6e979893184c5b4b1b2c02fff812479c979d","last_reissued_at":"2026-07-05T08:45:42.691150Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:45:42.691150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.13704","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":"2026-07-05T08:45:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sZub3gf1B6Iw/20JG2sXK9SWazdVZ6vnYUiBQ9UO70Ioapam9y5FUledNIexW4BgPUvUnlRREJGDW+7usfUeDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T20:24:31.524988Z"},"content_sha256":"d3bd296c49a0362007bde0241e1892fbc081bcdba627be73968ba5fec5d7f795","schema_version":"1.0","event_id":"sha256:d3bd296c49a0362007bde0241e1892fbc081bcdba627be73968ba5fec5d7f795"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:OAKRBZCNIK22CTY7EAC762TOS6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovering governing equation in structural dynamics from acceleration-only measurements","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"stat.ML","authors_text":"Calvin Alvares, Souvik Chakraborty","submitted_at":"2024-07-18T17:04:14Z","abstract_excerpt":"Over the past few years, equation discovery has gained popularity in different fields of science and engineering. However, existing equation discovery algorithms rely on the availability of noisy measurements of the state variables (i.e., displacement {and velocity}). This is a major bottleneck in structural dynamics, where we often only have access to acceleration measurements. To that end, this paper introduces a novel equation discovery algorithm for discovering governing equations of dynamical systems from acceleration-only measurements. The proposed algorithm employs a library-based appro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.13704","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/2407.13704/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":"2026-07-05T08:45:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VZDTcioFGE7kGYrw0B+OiC7K4KEt/O5qdVzqYDprAtf44k+fXZvEIPwrchFM2N1DYVyR8Csn3MSVfg/XmokdAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T20:24:31.525494Z"},"content_sha256":"66416099f901f7fd5fa4a4a0be3d1d2b58ae9df4c4855593d5e384bca5502f9c","schema_version":"1.0","event_id":"sha256:66416099f901f7fd5fa4a4a0be3d1d2b58ae9df4c4855593d5e384bca5502f9c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OAKRBZCNIK22CTY7EAC762TOS6/bundle.json","state_url":"https://pith.science/pith/OAKRBZCNIK22CTY7EAC762TOS6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OAKRBZCNIK22CTY7EAC762TOS6/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":"2026-08-09T20:24:31Z","links":{"resolver":"https://pith.science/pith/OAKRBZCNIK22CTY7EAC762TOS6","bundle":"https://pith.science/pith/OAKRBZCNIK22CTY7EAC762TOS6/bundle.json","state":"https://pith.science/pith/OAKRBZCNIK22CTY7EAC762TOS6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OAKRBZCNIK22CTY7EAC762TOS6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:OAKRBZCNIK22CTY7EAC762TOS6","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":"e10a56425ba00402e3f4d4d8c21baec8d727904bb4c29c312e4f9c4ee01168a9","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"stat.ML","submitted_at":"2024-07-18T17:04:14Z","title_canon_sha256":"0564829e0f5155f71e632fd22736871b496c2abbbc376e9b31ed91fa2ad2a5f0"},"schema_version":"1.0","source":{"id":"2407.13704","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.13704","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"arxiv_version","alias_value":"2407.13704v1","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.13704","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"pith_short_12","alias_value":"OAKRBZCNIK22","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"pith_short_16","alias_value":"OAKRBZCNIK22CTY7","created_at":"2026-07-05T08:45:42Z"},{"alias_kind":"pith_short_8","alias_value":"OAKRBZCN","created_at":"2026-07-05T08:45:42Z"}],"graph_snapshots":[{"event_id":"sha256:66416099f901f7fd5fa4a4a0be3d1d2b58ae9df4c4855593d5e384bca5502f9c","target":"graph","created_at":"2026-07-05T08:45:42Z","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/2407.13704/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Over the past few years, equation discovery has gained popularity in different fields of science and engineering. However, existing equation discovery algorithms rely on the availability of noisy measurements of the state variables (i.e., displacement {and velocity}). This is a major bottleneck in structural dynamics, where we often only have access to acceleration measurements. To that end, this paper introduces a novel equation discovery algorithm for discovering governing equations of dynamical systems from acceleration-only measurements. The proposed algorithm employs a library-based appro","authors_text":"Calvin Alvares, Souvik Chakraborty","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"stat.ML","submitted_at":"2024-07-18T17:04:14Z","title":"Discovering governing equation in structural dynamics from acceleration-only measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.13704","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:d3bd296c49a0362007bde0241e1892fbc081bcdba627be73968ba5fec5d7f795","target":"record","created_at":"2026-07-05T08:45:42Z","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":"e10a56425ba00402e3f4d4d8c21baec8d727904bb4c29c312e4f9c4ee01168a9","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"stat.ML","submitted_at":"2024-07-18T17:04:14Z","title_canon_sha256":"0564829e0f5155f71e632fd22736871b496c2abbbc376e9b31ed91fa2ad2a5f0"},"schema_version":"1.0","source":{"id":"2407.13704","kind":"arxiv","version":1}},"canonical_sha256":"701510e44d42b5a14f1f2005ff6a6e979893184c5b4b1b2c02fff812479c979d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"701510e44d42b5a14f1f2005ff6a6e979893184c5b4b1b2c02fff812479c979d","first_computed_at":"2026-07-05T08:45:42.691150Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:45:42.691150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O/XSjKmc4liLVv/4iNFLntHhQ/o4MpnIZ71ES8+egMf36C8yVlv22+Ir6tSAXOx9R7ROY0ytZ+HW3s44qbuNAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:45:42.691493Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.13704","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3bd296c49a0362007bde0241e1892fbc081bcdba627be73968ba5fec5d7f795","sha256:66416099f901f7fd5fa4a4a0be3d1d2b58ae9df4c4855593d5e384bca5502f9c"],"state_sha256":"d3423440191d2ae45698a6ef5ecab8f3490f4704eb4c57b6a71fe52ff57256f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G0pf/eUr6XO6ip5R0yBbBVg7cDH7+G9YUWzx15XNVB2x6/aOeF2seebDqnKCI8FKX3CalA2DUm1D95KU99YoDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T20:24:31.531114Z","bundle_sha256":"8775bbd970be0d0bb199be7f0eca49323dc155992340c654cb3d253d2d23e945"}}