{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:LJ4LBTDHZ2M2UHVBEPALUVBX5Y","short_pith_number":"pith:LJ4LBTDH","canonical_record":{"source":{"id":"2606.12000","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-06-10T12:25:52Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"f909acfcba0cd72a2ac6aec850e96cc4ba5d75bff0503f717f3e2e55d87a14ca","abstract_canon_sha256":"cc38b87a73251c3c621985adeab5189936753d430ce0a789cc38154258f89cb2"},"schema_version":"1.0"},"canonical_sha256":"5a78b0cc67ce99aa1ea123c0ba5437ee1392bef113a9387c8a41bcc3898f58b4","source":{"kind":"arxiv","id":"2606.12000","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.12000","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"arxiv_version","alias_value":"2606.12000v1","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.12000","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"pith_short_12","alias_value":"LJ4LBTDHZ2M2","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"pith_short_16","alias_value":"LJ4LBTDHZ2M2UHVB","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"pith_short_8","alias_value":"LJ4LBTDH","created_at":"2026-06-11T01:10:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:LJ4LBTDHZ2M2UHVBEPALUVBX5Y","target":"record","payload":{"canonical_record":{"source":{"id":"2606.12000","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-06-10T12:25:52Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"f909acfcba0cd72a2ac6aec850e96cc4ba5d75bff0503f717f3e2e55d87a14ca","abstract_canon_sha256":"cc38b87a73251c3c621985adeab5189936753d430ce0a789cc38154258f89cb2"},"schema_version":"1.0"},"canonical_sha256":"5a78b0cc67ce99aa1ea123c0ba5437ee1392bef113a9387c8a41bcc3898f58b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-11T01:10:41.759426Z","signature_b64":"HVdkZMlrYg1NUVMOZUzog+YGclUHkQN4rzhQJ7SkLX4Mc5ns0tqsZN42e0jv3RMV0aCQn9GWpO9kh5aSibDwCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a78b0cc67ce99aa1ea123c0ba5437ee1392bef113a9387c8a41bcc3898f58b4","last_reissued_at":"2026-06-11T01:10:41.758529Z","signature_status":"signed_v1","first_computed_at":"2026-06-11T01:10:41.758529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.12000","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":"2026-06-11T01:10:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LvFy/h+kSRiFrs+Ru78fQAGbq+sf/xOBlROvhAJEMTCHYRwKmsd2XtBkHzu8wToYXqrMO63P0YouSlWasnfODg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T18:31:01.550964Z"},"content_sha256":"9657a8765f5f22e20f3de23599e529e5d3d0b7f20c65b8c74cda0631ee258c8f","schema_version":"1.0","event_id":"sha256:9657a8765f5f22e20f3de23599e529e5d3d0b7f20c65b8c74cda0631ee258c8f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:LJ4LBTDHZ2M2UHVBEPALUVBX5Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Physics-guided residual Kalman learning for state-of-charge estimation of lithium iron phosphate batteries","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Feng Guo, Guangdi Hu, Khiem Trad, Luis D. Couto, Mohammadhosein Safari, Ru Hong","submitted_at":"2026-06-10T12:25:52Z","abstract_excerpt":"Accurate state of charge (SOC) estimation of lithium iron phosphate (LFP) batteries remains challenging because of their flat open-circuit-voltage (OCV)-SOC characteristics, temperature-dependent dynamics, and sensitivity to initialization errors. Here, we propose a physics-guided residual Kalman learning (PRKL) framework for electrochemical-model-based SOC estimation. PRKL combines a control-oriented single-particle-model-based extended Kalman filter (EKF), which provides recursive physical state propagation, with a gated recurrent unit (GRU) residual learner that compensates structured EKF e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.12000","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/2606.12000/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":"2026-06-11T01:10:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XAQ22qzImIF36rJdQm4bCLamzLybjBEtdBHnNrBlCoOrz0tPI8SgGUEdkvWGSX9OOT/7wK6txdve6bBIWiRSBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T18:31:01.551361Z"},"content_sha256":"ec7187a1080f839dc5669678986321f48bf5add359d46760aa5b2d382a455774","schema_version":"1.0","event_id":"sha256:ec7187a1080f839dc5669678986321f48bf5add359d46760aa5b2d382a455774"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LJ4LBTDHZ2M2UHVBEPALUVBX5Y/bundle.json","state_url":"https://pith.science/pith/LJ4LBTDHZ2M2UHVBEPALUVBX5Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LJ4LBTDHZ2M2UHVBEPALUVBX5Y/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":"2026-07-03T18:31:01Z","links":{"resolver":"https://pith.science/pith/LJ4LBTDHZ2M2UHVBEPALUVBX5Y","bundle":"https://pith.science/pith/LJ4LBTDHZ2M2UHVBEPALUVBX5Y/bundle.json","state":"https://pith.science/pith/LJ4LBTDHZ2M2UHVBEPALUVBX5Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LJ4LBTDHZ2M2UHVBEPALUVBX5Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:LJ4LBTDHZ2M2UHVBEPALUVBX5Y","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":"cc38b87a73251c3c621985adeab5189936753d430ce0a789cc38154258f89cb2","cross_cats_sorted":["cs.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-06-10T12:25:52Z","title_canon_sha256":"f909acfcba0cd72a2ac6aec850e96cc4ba5d75bff0503f717f3e2e55d87a14ca"},"schema_version":"1.0","source":{"id":"2606.12000","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.12000","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"arxiv_version","alias_value":"2606.12000v1","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.12000","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"pith_short_12","alias_value":"LJ4LBTDHZ2M2","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"pith_short_16","alias_value":"LJ4LBTDHZ2M2UHVB","created_at":"2026-06-11T01:10:41Z"},{"alias_kind":"pith_short_8","alias_value":"LJ4LBTDH","created_at":"2026-06-11T01:10:41Z"}],"graph_snapshots":[{"event_id":"sha256:ec7187a1080f839dc5669678986321f48bf5add359d46760aa5b2d382a455774","target":"graph","created_at":"2026-06-11T01:10:41Z","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/2606.12000/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate state of charge (SOC) estimation of lithium iron phosphate (LFP) batteries remains challenging because of their flat open-circuit-voltage (OCV)-SOC characteristics, temperature-dependent dynamics, and sensitivity to initialization errors. Here, we propose a physics-guided residual Kalman learning (PRKL) framework for electrochemical-model-based SOC estimation. PRKL combines a control-oriented single-particle-model-based extended Kalman filter (EKF), which provides recursive physical state propagation, with a gated recurrent unit (GRU) residual learner that compensates structured EKF e","authors_text":"Feng Guo, Guangdi Hu, Khiem Trad, Luis D. Couto, Mohammadhosein Safari, Ru Hong","cross_cats":["cs.SY"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-06-10T12:25:52Z","title":"Physics-guided residual Kalman learning for state-of-charge estimation of lithium iron phosphate batteries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.12000","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":"sha256:9657a8765f5f22e20f3de23599e529e5d3d0b7f20c65b8c74cda0631ee258c8f","target":"record","created_at":"2026-06-11T01:10:41Z","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":"cc38b87a73251c3c621985adeab5189936753d430ce0a789cc38154258f89cb2","cross_cats_sorted":["cs.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2026-06-10T12:25:52Z","title_canon_sha256":"f909acfcba0cd72a2ac6aec850e96cc4ba5d75bff0503f717f3e2e55d87a14ca"},"schema_version":"1.0","source":{"id":"2606.12000","kind":"arxiv","version":1}},"canonical_sha256":"5a78b0cc67ce99aa1ea123c0ba5437ee1392bef113a9387c8a41bcc3898f58b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a78b0cc67ce99aa1ea123c0ba5437ee1392bef113a9387c8a41bcc3898f58b4","first_computed_at":"2026-06-11T01:10:41.758529Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-11T01:10:41.758529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HVdkZMlrYg1NUVMOZUzog+YGclUHkQN4rzhQJ7SkLX4Mc5ns0tqsZN42e0jv3RMV0aCQn9GWpO9kh5aSibDwCQ==","signature_status":"signed_v1","signed_at":"2026-06-11T01:10:41.759426Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.12000","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9657a8765f5f22e20f3de23599e529e5d3d0b7f20c65b8c74cda0631ee258c8f","sha256:ec7187a1080f839dc5669678986321f48bf5add359d46760aa5b2d382a455774"],"state_sha256":"57201a2d862311848dc29c3fb42f250d7fc4364d2cdc81b734cbd33ca4dddec1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6zzTGwxMii/+poa+fW+E8by1NOGAm5ajteGmFtnHTMH+G0jrBIDNAmsHccLYdYPQT799+i3FxNcm6wMsVMDvCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T18:31:01.553410Z","bundle_sha256":"7975e537a207158915d001b7ca1af5e4a411a84f599074ea0db37bda2222135a"}}