{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:UB6IMOSWPHBKWMWETLBHA2EGMR","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":"fa695726937c8fccd11dde53ec8829d1c722c3c1f104975a7434a54f139ab2f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2023-05-28T05:51:27Z","title_canon_sha256":"670d89c784c75198e54cbed06caf61cf3335cf67db4f7898f7b5c168e2879cd7"},"schema_version":"1.0","source":{"id":"2305.17639","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.17639","created_at":"2026-07-05T11:50:24Z"},{"alias_kind":"arxiv_version","alias_value":"2305.17639v2","created_at":"2026-07-05T11:50:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.17639","created_at":"2026-07-05T11:50:24Z"},{"alias_kind":"pith_short_12","alias_value":"UB6IMOSWPHBK","created_at":"2026-07-05T11:50:24Z"},{"alias_kind":"pith_short_16","alias_value":"UB6IMOSWPHBKWMWE","created_at":"2026-07-05T11:50:24Z"},{"alias_kind":"pith_short_8","alias_value":"UB6IMOSW","created_at":"2026-07-05T11:50:24Z"}],"graph_snapshots":[{"event_id":"sha256:67bffc52c698672e1e38bc6922a0d9411809afc07c67ba10937bfe1523f67023","target":"graph","created_at":"2026-07-05T11:50:24Z","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/2305.17639/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Marchenko algorithm can suppress the disturbing effects of internal multiples that are present in seismic reflection data. To achieve this, a set of coupled equations with four unknowns is solved. These coupled equations are separated into a set of two equations with two unknowns using a time window. The two unknown focusing functions can be resolved by an iterative or direct method. These focusing functions, when applied to reflection data, create virtual point-sources inside the medium. Combining individual virtual point-sources into a plane-wave leads to an efficient computation of imag","authors_text":"Giovanni Meles, Jan Thorbecke, Joeri Brackenhoff, Johno van IJsseldijk, Kees Wapenaar, Mohammed Almobarak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2023-05-28T05:51:27Z","title":"Design, implementation and application of the Marchenko Plane-wave algorithm"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.17639","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:ece084f5cdf07224b01c416e78605df6d95c99da9c8b4d4d87474fd28c04fcca","target":"record","created_at":"2026-07-05T11:50:24Z","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":"fa695726937c8fccd11dde53ec8829d1c722c3c1f104975a7434a54f139ab2f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2023-05-28T05:51:27Z","title_canon_sha256":"670d89c784c75198e54cbed06caf61cf3335cf67db4f7898f7b5c168e2879cd7"},"schema_version":"1.0","source":{"id":"2305.17639","kind":"arxiv","version":2}},"canonical_sha256":"a07c863a5679c2ab32c49ac2706886645ee9cd85c26e8dc30a8a204f5001ceb9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a07c863a5679c2ab32c49ac2706886645ee9cd85c26e8dc30a8a204f5001ceb9","first_computed_at":"2026-07-05T11:50:24.546633Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:50:24.546633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mlJPE8jcUJWXVltDQ+Orl/QWUJNKt5f6R/HykYigJN/6cr0Nr+GdcmMTMh7fnTaO6sQMhebcffu+MzKoGDTIAw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:50:24.547047Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.17639","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ece084f5cdf07224b01c416e78605df6d95c99da9c8b4d4d87474fd28c04fcca","sha256:67bffc52c698672e1e38bc6922a0d9411809afc07c67ba10937bfe1523f67023"],"state_sha256":"2fd419cf5cf24048173cd624d0e41883f9582d6c33ac7aaa2d5710fe697c4052"}