{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JFB2WTUXYE7VJJKPU23NOIHKWM","short_pith_number":"pith:JFB2WTUX","canonical_record":{"source":{"id":"1811.03977","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2018-11-09T15:45:33Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"7916184975efa35428fa507891501fa307fb67a0e4d04d9708662a7018a5ccde","abstract_canon_sha256":"584d64a983a35122f70741566ab1c9c7742655231134d1caf7ecb603baa1d15e"},"schema_version":"1.0"},"canonical_sha256":"4943ab4e97c13f54a54fa6b6d720eab32f9e60a5821201a5aefe39e5e37e3283","source":{"kind":"arxiv","id":"1811.03977","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03977","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03977v1","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03977","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"pith_short_12","alias_value":"JFB2WTUXYE7V","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"pith_short_16","alias_value":"JFB2WTUXYE7VJJKP","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"pith_short_8","alias_value":"JFB2WTUX","created_at":"2026-07-05T00:36:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JFB2WTUXYE7VJJKPU23NOIHKWM","target":"record","payload":{"canonical_record":{"source":{"id":"1811.03977","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2018-11-09T15:45:33Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"7916184975efa35428fa507891501fa307fb67a0e4d04d9708662a7018a5ccde","abstract_canon_sha256":"584d64a983a35122f70741566ab1c9c7742655231134d1caf7ecb603baa1d15e"},"schema_version":"1.0"},"canonical_sha256":"4943ab4e97c13f54a54fa6b6d720eab32f9e60a5821201a5aefe39e5e37e3283","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:36:16.893020Z","signature_b64":"7+g7MjAvASPznxYQxR6HjvAfOrsQls8UbiVT1QaLEpyyFQdWXG1hZfKgPL3y2uwJ4zjMTdMBddF1N/a7e5oBAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4943ab4e97c13f54a54fa6b6d720eab32f9e60a5821201a5aefe39e5e37e3283","last_reissued_at":"2026-07-05T00:36:16.892567Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:36:16.892567Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.03977","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":"2026-07-05T00:36:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WpkiHYGWi7fUERTdqwictq/ULN1YBRhV4lq9ls/ho4TDMBaijxfp1lPaImYiZdXUjNezgn6KOgY2FuJJAMgsAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T01:31:52.896407Z"},"content_sha256":"bf94aa6b289ac36b4fe13c49e9d2818639678d9a6cb4e0a4541233adc59fe6fb","schema_version":"1.0","event_id":"sha256:bf94aa6b289ac36b4fe13c49e9d2818639678d9a6cb4e0a4541233adc59fe6fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JFB2WTUXYE7VJJKPU23NOIHKWM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantitative phase and polarisation endoscopy applied to detection of early oesophageal tumourigenesis","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.med-ph","authors_text":"Alexander J. Macfaden, Calum Williams, Catherine R. M. Fitzpatrick, George S. D. Gordon, James Joseph, Maria P. Alcolea, Massimiliano di Pietro, Philip H. Jones, Rebecca C. Fitzgerald, Sarah E. Bohndiek, Timothy D. Wilkinson, Travis Sawyer","submitted_at":"2018-11-09T15:45:33Z","abstract_excerpt":"Phase and polarisation of coherent light are highly perturbed by interaction with microstructural changes in pre-malignant tissue, holding promise for label-free early cancer detection in endoscopically accessible tissues such as the gastrointestinal tract. Flexible optical fibres used in conventional diagnostic endoscopy scramble phase and polarisation, restricting clinicians instead to low-contrast amplitude-only imaging. Here, we unscramble phase and polarisation images by exploiting the near-diagonal multi-core fibre (MCF) transmission matrix to create a novel parallelised fibre characteri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03977","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/1811.03977/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":"2026-07-05T00:36:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qisciIzevaH08TJ3l+Vlwg1Z/ztfLsbQ+BvvfH0xFVr3bK/VG7fQ95X27CewE516ZRFwnItd+T5BbcnwB9wNCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T01:31:52.896744Z"},"content_sha256":"da542b93c1ffe561b44cadbd5bc844f4f9742d25b7fc401bd6e27707c5033120","schema_version":"1.0","event_id":"sha256:da542b93c1ffe561b44cadbd5bc844f4f9742d25b7fc401bd6e27707c5033120"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JFB2WTUXYE7VJJKPU23NOIHKWM/bundle.json","state_url":"https://pith.science/pith/JFB2WTUXYE7VJJKPU23NOIHKWM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JFB2WTUXYE7VJJKPU23NOIHKWM/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":"2026-08-19T01:31:52Z","links":{"resolver":"https://pith.science/pith/JFB2WTUXYE7VJJKPU23NOIHKWM","bundle":"https://pith.science/pith/JFB2WTUXYE7VJJKPU23NOIHKWM/bundle.json","state":"https://pith.science/pith/JFB2WTUXYE7VJJKPU23NOIHKWM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JFB2WTUXYE7VJJKPU23NOIHKWM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JFB2WTUXYE7VJJKPU23NOIHKWM","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":"584d64a983a35122f70741566ab1c9c7742655231134d1caf7ecb603baa1d15e","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2018-11-09T15:45:33Z","title_canon_sha256":"7916184975efa35428fa507891501fa307fb67a0e4d04d9708662a7018a5ccde"},"schema_version":"1.0","source":{"id":"1811.03977","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03977","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03977v1","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03977","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"pith_short_12","alias_value":"JFB2WTUXYE7V","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"pith_short_16","alias_value":"JFB2WTUXYE7VJJKP","created_at":"2026-07-05T00:36:16Z"},{"alias_kind":"pith_short_8","alias_value":"JFB2WTUX","created_at":"2026-07-05T00:36:16Z"}],"graph_snapshots":[{"event_id":"sha256:da542b93c1ffe561b44cadbd5bc844f4f9742d25b7fc401bd6e27707c5033120","target":"graph","created_at":"2026-07-05T00:36:16Z","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/1811.03977/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Phase and polarisation of coherent light are highly perturbed by interaction with microstructural changes in pre-malignant tissue, holding promise for label-free early cancer detection in endoscopically accessible tissues such as the gastrointestinal tract. Flexible optical fibres used in conventional diagnostic endoscopy scramble phase and polarisation, restricting clinicians instead to low-contrast amplitude-only imaging. Here, we unscramble phase and polarisation images by exploiting the near-diagonal multi-core fibre (MCF) transmission matrix to create a novel parallelised fibre characteri","authors_text":"Alexander J. Macfaden, Calum Williams, Catherine R. M. Fitzpatrick, George S. D. Gordon, James Joseph, Maria P. Alcolea, Massimiliano di Pietro, Philip H. Jones, Rebecca C. Fitzgerald, Sarah E. Bohndiek, Timothy D. Wilkinson, Travis Sawyer","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2018-11-09T15:45:33Z","title":"Quantitative phase and polarisation endoscopy applied to detection of early oesophageal tumourigenesis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03977","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:bf94aa6b289ac36b4fe13c49e9d2818639678d9a6cb4e0a4541233adc59fe6fb","target":"record","created_at":"2026-07-05T00:36:16Z","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":"584d64a983a35122f70741566ab1c9c7742655231134d1caf7ecb603baa1d15e","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2018-11-09T15:45:33Z","title_canon_sha256":"7916184975efa35428fa507891501fa307fb67a0e4d04d9708662a7018a5ccde"},"schema_version":"1.0","source":{"id":"1811.03977","kind":"arxiv","version":1}},"canonical_sha256":"4943ab4e97c13f54a54fa6b6d720eab32f9e60a5821201a5aefe39e5e37e3283","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4943ab4e97c13f54a54fa6b6d720eab32f9e60a5821201a5aefe39e5e37e3283","first_computed_at":"2026-07-05T00:36:16.892567Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:36:16.892567Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7+g7MjAvASPznxYQxR6HjvAfOrsQls8UbiVT1QaLEpyyFQdWXG1hZfKgPL3y2uwJ4zjMTdMBddF1N/a7e5oBAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:36:16.893020Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.03977","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf94aa6b289ac36b4fe13c49e9d2818639678d9a6cb4e0a4541233adc59fe6fb","sha256:da542b93c1ffe561b44cadbd5bc844f4f9742d25b7fc401bd6e27707c5033120"],"state_sha256":"9961b4a6564f45b61dfcad7a2ea18b4be4c0880ce63bc8f6d319adb130427d94"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kSfzAMaH4yIegBEDCGLetoHjRFDCSXB3OJb1G1b2V5tbjiDz7c0cm0r9wi5wUXXnkaGItOU9OUazsZvt2LdrCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T01:31:52.899992Z","bundle_sha256":"16e6ddf784eacca96513bdc8793b40c0f1b14a29904599a3d29287ae32bc85e5"}}