{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:7BHLJ342VXSVMLQCLIRQMGF2NZ","short_pith_number":"pith:7BHLJ342","canonical_record":{"source":{"id":"2605.28601","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2026-05-27T15:17:51Z","cross_cats_sorted":[],"title_canon_sha256":"cc667da0f557b09c4dd886493765b2317ed6afe7d5ed0ce7a0bd3795ddfa45ef","abstract_canon_sha256":"f01eb97fb66a16a8ceb9b52eaa7dcc17d1f5dfb9a953b1c78c4f68d9380b2f27"},"schema_version":"1.0"},"canonical_sha256":"f84eb4ef9aade5562e025a230618ba6e6a6699275a442142cb766956a45d944a","source":{"kind":"arxiv","id":"2605.28601","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.28601","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"arxiv_version","alias_value":"2605.28601v1","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.28601","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"pith_short_12","alias_value":"7BHLJ342VXSV","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"pith_short_16","alias_value":"7BHLJ342VXSVMLQC","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"pith_short_8","alias_value":"7BHLJ342","created_at":"2026-05-28T02:04:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:7BHLJ342VXSVMLQCLIRQMGF2NZ","target":"record","payload":{"canonical_record":{"source":{"id":"2605.28601","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2026-05-27T15:17:51Z","cross_cats_sorted":[],"title_canon_sha256":"cc667da0f557b09c4dd886493765b2317ed6afe7d5ed0ce7a0bd3795ddfa45ef","abstract_canon_sha256":"f01eb97fb66a16a8ceb9b52eaa7dcc17d1f5dfb9a953b1c78c4f68d9380b2f27"},"schema_version":"1.0"},"canonical_sha256":"f84eb4ef9aade5562e025a230618ba6e6a6699275a442142cb766956a45d944a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-28T02:04:57.490262Z","signature_b64":"tkyapDiVji9O1B+1fcIzOMJdiH5V8wDvzTgEGXHZuwfR5qYHtCx0+ntIUMEoj22izunl449sdpZQRwJTUNSEBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f84eb4ef9aade5562e025a230618ba6e6a6699275a442142cb766956a45d944a","last_reissued_at":"2026-05-28T02:04:57.489842Z","signature_status":"signed_v1","first_computed_at":"2026-05-28T02:04:57.489842Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.28601","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":"2026-05-28T02:04:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dp7QUCzt9JiCkJ7O5PlyUkWi6A5g2dOspEx/4Oa3F4idF8DamRfS7Iy5Amu8LG4QPEMwBX6xyv9FFSvlILDaDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T20:57:53.822200Z"},"content_sha256":"70157fe68742416ae14a17932f48ce8a40242f10f373b8a86481f34de4990445","schema_version":"1.0","event_id":"sha256:70157fe68742416ae14a17932f48ce8a40242f10f373b8a86481f34de4990445"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:7BHLJ342VXSVMLQCLIRQMGF2NZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Local Information Operators for Spatial Identifiability in Distributed-Parameter Inverse Problems in Computational Mechanics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CE","authors_text":"Tammam Bakeer","submitted_at":"2026-05-27T15:17:51Z","abstract_excerpt":"In distributed-parameter inverse problems in computational mechanics, spatially varying fields are inferred from noisy, indirect, and heterogeneous observations. The relevant identifiability question concerns which spatial perturbation patterns of the field are distinguishable under a specified sensing and excitation programme. This paper develops a local information-operator framework for this purpose. Around a nominal parameter field, the parameter-to-observation map is linearized and the likelihood contribution to posterior precision is interpreted as an operator on parameter-field perturba"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.28601","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/2605.28601/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":"2026-05-28T02:04:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s/55Q87Nus/VqhMZpqeQVzmlnscMZSeSVcyyan3ymFL6Oy3F/pkb2KDX6RFcg88OSlrW1szAiegKb/9uKzpQAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T20:57:53.822586Z"},"content_sha256":"642f389d004f627eac427345788eb22e20cec7e44b1f8c0fe9d69262b28ae573","schema_version":"1.0","event_id":"sha256:642f389d004f627eac427345788eb22e20cec7e44b1f8c0fe9d69262b28ae573"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7BHLJ342VXSVMLQCLIRQMGF2NZ/bundle.json","state_url":"https://pith.science/pith/7BHLJ342VXSVMLQCLIRQMGF2NZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7BHLJ342VXSVMLQCLIRQMGF2NZ/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":"2026-06-29T20:57:53Z","links":{"resolver":"https://pith.science/pith/7BHLJ342VXSVMLQCLIRQMGF2NZ","bundle":"https://pith.science/pith/7BHLJ342VXSVMLQCLIRQMGF2NZ/bundle.json","state":"https://pith.science/pith/7BHLJ342VXSVMLQCLIRQMGF2NZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7BHLJ342VXSVMLQCLIRQMGF2NZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:7BHLJ342VXSVMLQCLIRQMGF2NZ","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":"f01eb97fb66a16a8ceb9b52eaa7dcc17d1f5dfb9a953b1c78c4f68d9380b2f27","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2026-05-27T15:17:51Z","title_canon_sha256":"cc667da0f557b09c4dd886493765b2317ed6afe7d5ed0ce7a0bd3795ddfa45ef"},"schema_version":"1.0","source":{"id":"2605.28601","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.28601","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"arxiv_version","alias_value":"2605.28601v1","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.28601","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"pith_short_12","alias_value":"7BHLJ342VXSV","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"pith_short_16","alias_value":"7BHLJ342VXSVMLQC","created_at":"2026-05-28T02:04:57Z"},{"alias_kind":"pith_short_8","alias_value":"7BHLJ342","created_at":"2026-05-28T02:04:57Z"}],"graph_snapshots":[{"event_id":"sha256:642f389d004f627eac427345788eb22e20cec7e44b1f8c0fe9d69262b28ae573","target":"graph","created_at":"2026-05-28T02:04:57Z","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/2605.28601/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In distributed-parameter inverse problems in computational mechanics, spatially varying fields are inferred from noisy, indirect, and heterogeneous observations. The relevant identifiability question concerns which spatial perturbation patterns of the field are distinguishable under a specified sensing and excitation programme. This paper develops a local information-operator framework for this purpose. Around a nominal parameter field, the parameter-to-observation map is linearized and the likelihood contribution to posterior precision is interpreted as an operator on parameter-field perturba","authors_text":"Tammam Bakeer","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2026-05-27T15:17:51Z","title":"Local Information Operators for Spatial Identifiability in Distributed-Parameter Inverse Problems in Computational Mechanics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.28601","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":"sha256:70157fe68742416ae14a17932f48ce8a40242f10f373b8a86481f34de4990445","target":"record","created_at":"2026-05-28T02:04:57Z","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":"f01eb97fb66a16a8ceb9b52eaa7dcc17d1f5dfb9a953b1c78c4f68d9380b2f27","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2026-05-27T15:17:51Z","title_canon_sha256":"cc667da0f557b09c4dd886493765b2317ed6afe7d5ed0ce7a0bd3795ddfa45ef"},"schema_version":"1.0","source":{"id":"2605.28601","kind":"arxiv","version":1}},"canonical_sha256":"f84eb4ef9aade5562e025a230618ba6e6a6699275a442142cb766956a45d944a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f84eb4ef9aade5562e025a230618ba6e6a6699275a442142cb766956a45d944a","first_computed_at":"2026-05-28T02:04:57.489842Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-28T02:04:57.489842Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tkyapDiVji9O1B+1fcIzOMJdiH5V8wDvzTgEGXHZuwfR5qYHtCx0+ntIUMEoj22izunl449sdpZQRwJTUNSEBw==","signature_status":"signed_v1","signed_at":"2026-05-28T02:04:57.490262Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.28601","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70157fe68742416ae14a17932f48ce8a40242f10f373b8a86481f34de4990445","sha256:642f389d004f627eac427345788eb22e20cec7e44b1f8c0fe9d69262b28ae573"],"state_sha256":"9fab219a364c19b47e6eb925ab0332f0fa48aa0405b67ae9e686ba494e2eed72"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KRollxEfpSgxzxZz8MjYXgTNyiE3r39Nca13NcBvOc3G1JEdsjpgvpaG6tqexxlOz703nPTgxj5T/8wjq9vZDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T20:57:53.824521Z","bundle_sha256":"805c6588c69505a141f1abf78af002962b09f6ea700b95fb56b4cf383eee342b"}}