{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:3XSSBJE3CCVEGFZPTVKFJFBVF4","short_pith_number":"pith:3XSSBJE3","canonical_record":{"source":{"id":"2407.07932","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2024-07-10T07:51:00Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"3e2cae7e1caba7d151408eee523eb8aaea199657a291719f6b9a634c60e39d69","abstract_canon_sha256":"934fe9584171cf9186d18e6a845d41732d8f1879d410ebd59c012353365087ed"},"schema_version":"1.0"},"canonical_sha256":"dde520a49b10aa43172f9d545494352f295ba0953a1a924066ae8cd31ad7eb0d","source":{"kind":"arxiv","id":"2407.07932","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.07932","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"arxiv_version","alias_value":"2407.07932v2","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.07932","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"pith_short_12","alias_value":"3XSSBJE3CCVE","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"pith_short_16","alias_value":"3XSSBJE3CCVEGFZP","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"pith_short_8","alias_value":"3XSSBJE3","created_at":"2026-07-05T11:01:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:3XSSBJE3CCVEGFZPTVKFJFBVF4","target":"record","payload":{"canonical_record":{"source":{"id":"2407.07932","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2024-07-10T07:51:00Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"3e2cae7e1caba7d151408eee523eb8aaea199657a291719f6b9a634c60e39d69","abstract_canon_sha256":"934fe9584171cf9186d18e6a845d41732d8f1879d410ebd59c012353365087ed"},"schema_version":"1.0"},"canonical_sha256":"dde520a49b10aa43172f9d545494352f295ba0953a1a924066ae8cd31ad7eb0d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:01:25.254063Z","signature_b64":"oAOrEjTf+gk8cb8NJTRTvilkS+hMGcwlgV3gJdYUdifVT+714kmOMa+q+HoVv+w/nR2FFvLbsXHiUpjf4LD7Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dde520a49b10aa43172f9d545494352f295ba0953a1a924066ae8cd31ad7eb0d","last_reissued_at":"2026-07-05T11:01:25.253607Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:01:25.253607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.07932","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:01:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s6hpNVgYY08McP62RcRRprvVjAy4NQ5zARNv8fAxwErwVq3a8tqmOnicJWk9EjRFMwwjvftBE8Hv6Bmu46InBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T21:28:38.592690Z"},"content_sha256":"72394b27344c0584a2181f72f175194c0fbe4301e024cc85d879d21386f2efa8","schema_version":"1.0","event_id":"sha256:72394b27344c0584a2181f72f175194c0fbe4301e024cc85d879d21386f2efa8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:3XSSBJE3CCVEGFZPTVKFJFBVF4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detecting and Focusing on a Nonlinear Target in a Complex Medium","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.app-ph","authors_text":"Antton Go\\\"icoechea, Fran\\c{c}ois Sarrazin, Jakob H\\\"upfl, Matthieu Davy, Stefan Rotter","submitted_at":"2024-07-10T07:51:00Z","abstract_excerpt":"Wavefront shaping techniques allow waves to be focused on a diffraction-limited target deep inside disordered media. To identify the target position, a guidestar is required that typically emits a frequency-shifted signal. Here we present a noninvasive matrix approach operating at a single frequency only, based on the variation of the field scattered by a nonlinear target illuminated at two different incident powers. The local perturbation induced by the nonlinearity serves as a guide for identifying optimal incident wavefronts. We demonstrate maximal focusing on electronic devices embedded in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.07932","kind":"arxiv","version":2},"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/2407.07932/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":"2026-07-05T11:01:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J11XUw7Onl6qok8/sH9fj+3F3SOSPJ/hf448EkjupiHe9KpEEZDi/Sm7kAkEZuLfl0D1p6vrDMDJIUPUwLR2Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T21:28:38.593585Z"},"content_sha256":"3c9b13685dc31c2c765d44a9d61e936ea1b2597bf10feb6eef148a78b89b89bc","schema_version":"1.0","event_id":"sha256:3c9b13685dc31c2c765d44a9d61e936ea1b2597bf10feb6eef148a78b89b89bc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3XSSBJE3CCVEGFZPTVKFJFBVF4/bundle.json","state_url":"https://pith.science/pith/3XSSBJE3CCVEGFZPTVKFJFBVF4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3XSSBJE3CCVEGFZPTVKFJFBVF4/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":"2026-08-17T21:28:38Z","links":{"resolver":"https://pith.science/pith/3XSSBJE3CCVEGFZPTVKFJFBVF4","bundle":"https://pith.science/pith/3XSSBJE3CCVEGFZPTVKFJFBVF4/bundle.json","state":"https://pith.science/pith/3XSSBJE3CCVEGFZPTVKFJFBVF4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3XSSBJE3CCVEGFZPTVKFJFBVF4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:3XSSBJE3CCVEGFZPTVKFJFBVF4","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":"934fe9584171cf9186d18e6a845d41732d8f1879d410ebd59c012353365087ed","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2024-07-10T07:51:00Z","title_canon_sha256":"3e2cae7e1caba7d151408eee523eb8aaea199657a291719f6b9a634c60e39d69"},"schema_version":"1.0","source":{"id":"2407.07932","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.07932","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"arxiv_version","alias_value":"2407.07932v2","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.07932","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"pith_short_12","alias_value":"3XSSBJE3CCVE","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"pith_short_16","alias_value":"3XSSBJE3CCVEGFZP","created_at":"2026-07-05T11:01:25Z"},{"alias_kind":"pith_short_8","alias_value":"3XSSBJE3","created_at":"2026-07-05T11:01:25Z"}],"graph_snapshots":[{"event_id":"sha256:3c9b13685dc31c2c765d44a9d61e936ea1b2597bf10feb6eef148a78b89b89bc","target":"graph","created_at":"2026-07-05T11:01:25Z","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/2407.07932/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Wavefront shaping techniques allow waves to be focused on a diffraction-limited target deep inside disordered media. To identify the target position, a guidestar is required that typically emits a frequency-shifted signal. Here we present a noninvasive matrix approach operating at a single frequency only, based on the variation of the field scattered by a nonlinear target illuminated at two different incident powers. The local perturbation induced by the nonlinearity serves as a guide for identifying optimal incident wavefronts. We demonstrate maximal focusing on electronic devices embedded in","authors_text":"Antton Go\\\"icoechea, Fran\\c{c}ois Sarrazin, Jakob H\\\"upfl, Matthieu Davy, Stefan Rotter","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2024-07-10T07:51:00Z","title":"Detecting and Focusing on a Nonlinear Target in a Complex Medium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.07932","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":"sha256:72394b27344c0584a2181f72f175194c0fbe4301e024cc85d879d21386f2efa8","target":"record","created_at":"2026-07-05T11:01:25Z","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":"934fe9584171cf9186d18e6a845d41732d8f1879d410ebd59c012353365087ed","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2024-07-10T07:51:00Z","title_canon_sha256":"3e2cae7e1caba7d151408eee523eb8aaea199657a291719f6b9a634c60e39d69"},"schema_version":"1.0","source":{"id":"2407.07932","kind":"arxiv","version":2}},"canonical_sha256":"dde520a49b10aa43172f9d545494352f295ba0953a1a924066ae8cd31ad7eb0d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dde520a49b10aa43172f9d545494352f295ba0953a1a924066ae8cd31ad7eb0d","first_computed_at":"2026-07-05T11:01:25.253607Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:01:25.253607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oAOrEjTf+gk8cb8NJTRTvilkS+hMGcwlgV3gJdYUdifVT+714kmOMa+q+HoVv+w/nR2FFvLbsXHiUpjf4LD7Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:01:25.254063Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.07932","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72394b27344c0584a2181f72f175194c0fbe4301e024cc85d879d21386f2efa8","sha256:3c9b13685dc31c2c765d44a9d61e936ea1b2597bf10feb6eef148a78b89b89bc"],"state_sha256":"be40624cf498570d714fa72b14d1b1220d7382f87af08c0fcf51b66af90fcb58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cCo14vcc4QaQB5J++5oYN5yh6LoeTDOjZV1xAxvuzqx8135JCJorZCXiZOWP9UArxszMlQOiJndFFw+9GYvlDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T21:28:38.660608Z","bundle_sha256":"f659f01a429cb89b5556a03151b46f9576e486878679a7de7ebbae78a342566e"}}