{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:LS7MJHKZ7GFYBQYGZLXLQJORKY","short_pith_number":"pith:LS7MJHKZ","canonical_record":{"source":{"id":"1611.09793","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2016-11-29T19:14:23Z","cross_cats_sorted":["math.AP","math.NA"],"title_canon_sha256":"77595cb483e6a5480c8e777b97cfb29e3cbd73909b2d0ce4da55ff6e1b8b267d","abstract_canon_sha256":"242894252029e681a2717582b78e4e692a025708647860494004d93f228c7220"},"schema_version":"1.0"},"canonical_sha256":"5cbec49d59f98b80c306caeeb825d15622f74abbe2d5bc67b7dc53cf23ea0d9c","source":{"kind":"arxiv","id":"1611.09793","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.09793","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"arxiv_version","alias_value":"1611.09793v1","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.09793","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"pith_short_12","alias_value":"LS7MJHKZ7GFY","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LS7MJHKZ7GFYBQYG","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LS7MJHKZ","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:LS7MJHKZ7GFYBQYGZLXLQJORKY","target":"record","payload":{"canonical_record":{"source":{"id":"1611.09793","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2016-11-29T19:14:23Z","cross_cats_sorted":["math.AP","math.NA"],"title_canon_sha256":"77595cb483e6a5480c8e777b97cfb29e3cbd73909b2d0ce4da55ff6e1b8b267d","abstract_canon_sha256":"242894252029e681a2717582b78e4e692a025708647860494004d93f228c7220"},"schema_version":"1.0"},"canonical_sha256":"5cbec49d59f98b80c306caeeb825d15622f74abbe2d5bc67b7dc53cf23ea0d9c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:56:12.968882Z","signature_b64":"fDeQ/NnAUrZinQqNKFJXCKahVzjiVdOgtkxyxNOpt/AWzmrGYiO0zLGkzE8L2gFywL1GV0p9aZfnSkIy+ERyCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5cbec49d59f98b80c306caeeb825d15622f74abbe2d5bc67b7dc53cf23ea0d9c","last_reissued_at":"2026-05-18T00:56:12.968144Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:56:12.968144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.09793","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":"2026-05-18T00:56:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VxkFYeBktgqHzYk9JpVe98AUM1jcpTKHFH4rISGipe1CaVbMNvYwxgWEVtHzW2gSC02m4mHjia8+37zik5faBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T09:29:35.464232Z"},"content_sha256":"83fc14296d8f3a8ec3c3ce8e72a4198ef346c11fd9aa51b1a3d3bf40e0129912","schema_version":"1.0","event_id":"sha256:83fc14296d8f3a8ec3c3ce8e72a4198ef346c11fd9aa51b1a3d3bf40e0129912"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:LS7MJHKZ7GFYBQYGZLXLQJORKY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multifrequency interferometric imaging with intensity-only measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.AP","math.NA"],"primary_cat":"math.OC","authors_text":"Alexei Novikov, Chrysoula Tsogka, George Papanicolaou, Miguel Moscoso","submitted_at":"2016-11-29T19:14:23Z","abstract_excerpt":"We propose an illumination strategy for interferometric imaging that allows for robust depth recovery from intensity-only measurements. For an array with colocated sources and receivers, we show that all the possible interferometric data for multiple sources, receivers and frequencies can be recovered from intensity-only measurements provided that we have sufficient source location and frequency illumination diversity. There is no need for phase reconstruction in this approach. Using interferometric imaging methods we show that in homogeneous media there is no loss of resolution when imaging w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.09793","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":"2026-05-18T00:56:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C3hn+mqX4w8qM883/LZzkNAexG2HiuBf96Gioq6LIXaUv/+MJM8QA2HNpOgm5tJ5wf0YievMfXm38U1rfwf/DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T09:29:35.464604Z"},"content_sha256":"16b725d1c7cc0aa29383f3be94c49febb64f4340e6810529e753f9b7feebf85c","schema_version":"1.0","event_id":"sha256:16b725d1c7cc0aa29383f3be94c49febb64f4340e6810529e753f9b7feebf85c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LS7MJHKZ7GFYBQYGZLXLQJORKY/bundle.json","state_url":"https://pith.science/pith/LS7MJHKZ7GFYBQYGZLXLQJORKY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LS7MJHKZ7GFYBQYGZLXLQJORKY/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":"2026-06-01T09:29:35Z","links":{"resolver":"https://pith.science/pith/LS7MJHKZ7GFYBQYGZLXLQJORKY","bundle":"https://pith.science/pith/LS7MJHKZ7GFYBQYGZLXLQJORKY/bundle.json","state":"https://pith.science/pith/LS7MJHKZ7GFYBQYGZLXLQJORKY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LS7MJHKZ7GFYBQYGZLXLQJORKY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LS7MJHKZ7GFYBQYGZLXLQJORKY","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":"242894252029e681a2717582b78e4e692a025708647860494004d93f228c7220","cross_cats_sorted":["math.AP","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2016-11-29T19:14:23Z","title_canon_sha256":"77595cb483e6a5480c8e777b97cfb29e3cbd73909b2d0ce4da55ff6e1b8b267d"},"schema_version":"1.0","source":{"id":"1611.09793","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.09793","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"arxiv_version","alias_value":"1611.09793v1","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.09793","created_at":"2026-05-18T00:56:12Z"},{"alias_kind":"pith_short_12","alias_value":"LS7MJHKZ7GFY","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LS7MJHKZ7GFYBQYG","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LS7MJHKZ","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:16b725d1c7cc0aa29383f3be94c49febb64f4340e6810529e753f9b7feebf85c","target":"graph","created_at":"2026-05-18T00:56:12Z","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":"We propose an illumination strategy for interferometric imaging that allows for robust depth recovery from intensity-only measurements. For an array with colocated sources and receivers, we show that all the possible interferometric data for multiple sources, receivers and frequencies can be recovered from intensity-only measurements provided that we have sufficient source location and frequency illumination diversity. There is no need for phase reconstruction in this approach. Using interferometric imaging methods we show that in homogeneous media there is no loss of resolution when imaging w","authors_text":"Alexei Novikov, Chrysoula Tsogka, George Papanicolaou, Miguel Moscoso","cross_cats":["math.AP","math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2016-11-29T19:14:23Z","title":"Multifrequency interferometric imaging with intensity-only measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.09793","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":"sha256:83fc14296d8f3a8ec3c3ce8e72a4198ef346c11fd9aa51b1a3d3bf40e0129912","target":"record","created_at":"2026-05-18T00:56:12Z","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":"242894252029e681a2717582b78e4e692a025708647860494004d93f228c7220","cross_cats_sorted":["math.AP","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2016-11-29T19:14:23Z","title_canon_sha256":"77595cb483e6a5480c8e777b97cfb29e3cbd73909b2d0ce4da55ff6e1b8b267d"},"schema_version":"1.0","source":{"id":"1611.09793","kind":"arxiv","version":1}},"canonical_sha256":"5cbec49d59f98b80c306caeeb825d15622f74abbe2d5bc67b7dc53cf23ea0d9c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5cbec49d59f98b80c306caeeb825d15622f74abbe2d5bc67b7dc53cf23ea0d9c","first_computed_at":"2026-05-18T00:56:12.968144Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:12.968144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fDeQ/NnAUrZinQqNKFJXCKahVzjiVdOgtkxyxNOpt/AWzmrGYiO0zLGkzE8L2gFywL1GV0p9aZfnSkIy+ERyCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:12.968882Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.09793","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:83fc14296d8f3a8ec3c3ce8e72a4198ef346c11fd9aa51b1a3d3bf40e0129912","sha256:16b725d1c7cc0aa29383f3be94c49febb64f4340e6810529e753f9b7feebf85c"],"state_sha256":"b4f22ff854f61a7e58ba70e90f43bf52b2d7b9143aa42caf04ebc83cbb2bf993"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vyTfgIZcO2Fp0G+Q86ogKV6Fs1wQhZCOJDbyQ8Jgad9d4+HMA9G7u4HKcmgL7r9PMLv2G3hi7CiJF/SGuPLsBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T09:29:35.466604Z","bundle_sha256":"eb635af8767e4efc24a654cd2e5f576d93063a19901caac81913b1caab6b8f7d"}}