{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:OAEONF3XYS7SPUUJJE7RUHC6YZ","short_pith_number":"pith:OAEONF3X","canonical_record":{"source":{"id":"1605.08743","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-10T21:49:21Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"b863ce7949d55fa2d1445d46c7062ad16f0c8670d0c40f8d74ab92454759a4e1","abstract_canon_sha256":"0c96044a51566a14fc2b1ce3ee8393420df0875faf6f9d8a77472ed6c47bb27e"},"schema_version":"1.0"},"canonical_sha256":"7008e69777c4bf27d289493f1a1c5ec67535af7c4d14cb06ee198c654bd16b04","source":{"kind":"arxiv","id":"1605.08743","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.08743","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"arxiv_version","alias_value":"1605.08743v1","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.08743","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"pith_short_12","alias_value":"OAEONF3XYS7S","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OAEONF3XYS7SPUUJ","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OAEONF3X","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:OAEONF3XYS7SPUUJJE7RUHC6YZ","target":"record","payload":{"canonical_record":{"source":{"id":"1605.08743","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-10T21:49:21Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"b863ce7949d55fa2d1445d46c7062ad16f0c8670d0c40f8d74ab92454759a4e1","abstract_canon_sha256":"0c96044a51566a14fc2b1ce3ee8393420df0875faf6f9d8a77472ed6c47bb27e"},"schema_version":"1.0"},"canonical_sha256":"7008e69777c4bf27d289493f1a1c5ec67535af7c4d14cb06ee198c654bd16b04","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:14.419391Z","signature_b64":"ia/08TIcsgZi9cqk4QWMGE3A1lKm3464SxgdsglxNiBRvWPL7lK0wYEQcW2Du1bOVx2c5CqxXRnfjvCWhxVzCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7008e69777c4bf27d289493f1a1c5ec67535af7c4d14cb06ee198c654bd16b04","last_reissued_at":"2026-05-18T00:47:14.418628Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:14.418628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.08743","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":"2026-05-18T00:47:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fnJKIGob5b73ojgrTfpxFO78Lnhv9ZYncwwn9hCtMw/vxY51W6wN0B8mhX28QQynlAJSg4ZSnfYurwFC0/deAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T02:25:31.384188Z"},"content_sha256":"ac71df35ba3f4ca9c0d7193c22191954948c6348c7d73eeb850c948b4bfdfd17","schema_version":"1.0","event_id":"sha256:ac71df35ba3f4ca9c0d7193c22191954948c6348c7d73eeb850c948b4bfdfd17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:OAEONF3XYS7SPUUJJE7RUHC6YZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generalized linear sampling method for elastic-wave sensing of heterogeneous fractures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.geo-ph","authors_text":"Bojan B. Guzina, Fatemeh Pourahmadian, Houssem Haddar","submitted_at":"2016-05-10T21:49:21Z","abstract_excerpt":"A theoretical foundation is developed for active seismic reconstruction of fractures endowed with spatially-varying interfacial condition (e.g.~partially-closed fractures, hydraulic fractures). The proposed indicator functional carries a superior localization property with no significant sensitivity to the fracture's contact condition, measurement errors, and illumination frequency. This is accomplished through the paradigm of the $F_\\sharp$-factorization technique and the recently developed Generalized Linear Sampling Method (GLSM) applied to elastodynamics. The direct scattering problem is f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.08743","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":""},"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":"2026-05-18T00:47:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OiYzDg1EnwtPJqUIi5kaHDDjVk+c5CwIhXNjz/oxigfPGjPNYMv7Epd5NNv4a4fbQB87UdKC6TDEoZvEnHmiDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T02:25:31.384559Z"},"content_sha256":"43c5e628d380671c5ae5e09e7e99cffb7d91255c0706f3f2710439f6a4ffeb35","schema_version":"1.0","event_id":"sha256:43c5e628d380671c5ae5e09e7e99cffb7d91255c0706f3f2710439f6a4ffeb35"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OAEONF3XYS7SPUUJJE7RUHC6YZ/bundle.json","state_url":"https://pith.science/pith/OAEONF3XYS7SPUUJJE7RUHC6YZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OAEONF3XYS7SPUUJJE7RUHC6YZ/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":"2026-06-21T02:25:31Z","links":{"resolver":"https://pith.science/pith/OAEONF3XYS7SPUUJJE7RUHC6YZ","bundle":"https://pith.science/pith/OAEONF3XYS7SPUUJJE7RUHC6YZ/bundle.json","state":"https://pith.science/pith/OAEONF3XYS7SPUUJJE7RUHC6YZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OAEONF3XYS7SPUUJJE7RUHC6YZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OAEONF3XYS7SPUUJJE7RUHC6YZ","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":"0c96044a51566a14fc2b1ce3ee8393420df0875faf6f9d8a77472ed6c47bb27e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-10T21:49:21Z","title_canon_sha256":"b863ce7949d55fa2d1445d46c7062ad16f0c8670d0c40f8d74ab92454759a4e1"},"schema_version":"1.0","source":{"id":"1605.08743","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.08743","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"arxiv_version","alias_value":"1605.08743v1","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.08743","created_at":"2026-05-18T00:47:14Z"},{"alias_kind":"pith_short_12","alias_value":"OAEONF3XYS7S","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OAEONF3XYS7SPUUJ","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OAEONF3X","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:43c5e628d380671c5ae5e09e7e99cffb7d91255c0706f3f2710439f6a4ffeb35","target":"graph","created_at":"2026-05-18T00:47:14Z","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"},"paper":{"abstract_excerpt":"A theoretical foundation is developed for active seismic reconstruction of fractures endowed with spatially-varying interfacial condition (e.g.~partially-closed fractures, hydraulic fractures). The proposed indicator functional carries a superior localization property with no significant sensitivity to the fracture's contact condition, measurement errors, and illumination frequency. This is accomplished through the paradigm of the $F_\\sharp$-factorization technique and the recently developed Generalized Linear Sampling Method (GLSM) applied to elastodynamics. The direct scattering problem is f","authors_text":"Bojan B. Guzina, Fatemeh Pourahmadian, Houssem Haddar","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-10T21:49:21Z","title":"Generalized linear sampling method for elastic-wave sensing of heterogeneous fractures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.08743","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:ac71df35ba3f4ca9c0d7193c22191954948c6348c7d73eeb850c948b4bfdfd17","target":"record","created_at":"2026-05-18T00:47:14Z","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":"0c96044a51566a14fc2b1ce3ee8393420df0875faf6f9d8a77472ed6c47bb27e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-05-10T21:49:21Z","title_canon_sha256":"b863ce7949d55fa2d1445d46c7062ad16f0c8670d0c40f8d74ab92454759a4e1"},"schema_version":"1.0","source":{"id":"1605.08743","kind":"arxiv","version":1}},"canonical_sha256":"7008e69777c4bf27d289493f1a1c5ec67535af7c4d14cb06ee198c654bd16b04","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7008e69777c4bf27d289493f1a1c5ec67535af7c4d14cb06ee198c654bd16b04","first_computed_at":"2026-05-18T00:47:14.418628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:14.418628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ia/08TIcsgZi9cqk4QWMGE3A1lKm3464SxgdsglxNiBRvWPL7lK0wYEQcW2Du1bOVx2c5CqxXRnfjvCWhxVzCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:14.419391Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.08743","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac71df35ba3f4ca9c0d7193c22191954948c6348c7d73eeb850c948b4bfdfd17","sha256:43c5e628d380671c5ae5e09e7e99cffb7d91255c0706f3f2710439f6a4ffeb35"],"state_sha256":"be82b8a775136d833ef94999f7a353556273c82c3f12f4a3b53437c3b4ae3e12"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5i/sLcPQWWmaLTQKzE1kEToPMBl1LtqB0u0qEzqgXLrG3ZW8pfS2KPCL+H5VbYQ2suKF6fTmraXS2tX0P5JRBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T02:25:31.386558Z","bundle_sha256":"c0cbe08966a8dcddac2187d15431c089ab392d5c9c2422e9dabb4671e5a59dda"}}