{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:25DHX5AU46BN7FYI3AC6Q6IHYQ","short_pith_number":"pith:25DHX5AU","canonical_record":{"source":{"id":"1703.05572","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T22:09:09Z","cross_cats_sorted":["physics.bio-ph","physics.optics"],"title_canon_sha256":"577b77e97b06c021e213278482bdf0dee8746af93bde7edc1728810bb0d4d6ec","abstract_canon_sha256":"70c3912741d9787b441bdbace743afbd3ec036a082e244caaad0fd89abaf6bf0"},"schema_version":"1.0"},"canonical_sha256":"d7467bf414e782df9708d805e87907c42d82f25e689525e09aa59ce897e1eb64","source":{"kind":"arxiv","id":"1703.05572","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.05572","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"arxiv_version","alias_value":"1703.05572v2","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.05572","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"pith_short_12","alias_value":"25DHX5AU46BN","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"25DHX5AU46BN7FYI","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"25DHX5AU","created_at":"2026-05-18T12:30:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:25DHX5AU46BN7FYI3AC6Q6IHYQ","target":"record","payload":{"canonical_record":{"source":{"id":"1703.05572","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T22:09:09Z","cross_cats_sorted":["physics.bio-ph","physics.optics"],"title_canon_sha256":"577b77e97b06c021e213278482bdf0dee8746af93bde7edc1728810bb0d4d6ec","abstract_canon_sha256":"70c3912741d9787b441bdbace743afbd3ec036a082e244caaad0fd89abaf6bf0"},"schema_version":"1.0"},"canonical_sha256":"d7467bf414e782df9708d805e87907c42d82f25e689525e09aa59ce897e1eb64","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:52.573161Z","signature_b64":"toNYpa6RhQU9z8FtqFnYSgXu5OAal0fibgQ1bXTzC7ksZDxPL/h8Gdyo0wAJMscnT5CkOQiM9bcux27MDDLMDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7467bf414e782df9708d805e87907c42d82f25e689525e09aa59ce897e1eb64","last_reissued_at":"2026-05-18T00:37:52.572624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:52.572624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.05572","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":"2026-05-18T00:37:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eRQkgMRYp07PwsdRS4xUMUYXhDPJm2Agl8/fPJDJrU46o8D4sY9Oz7l98Eplb5yroPLnW49JZQKKUz+wYxg1Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T15:07:56.580121Z"},"content_sha256":"41f4c54af72ffa81b65f10bbbd902883ac70d2edae163bc8631495132cd06b5a","schema_version":"1.0","event_id":"sha256:41f4c54af72ffa81b65f10bbbd902883ac70d2edae163bc8631495132cd06b5a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:25DHX5AU46BN7FYI3AC6Q6IHYQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ballistic and snake photon imaging for locating optical endomicroscopy fibres","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.bio-ph","physics.optics"],"primary_cat":"physics.med-ph","authors_text":"B. Mills, K. Dhaliwal, M. Bradley, M. G. Tanner, R. K. Henderson, R. R. Thomson, T. H. Craven, T. R. Choudhary","submitted_at":"2017-03-13T22:09:09Z","abstract_excerpt":"We demonstrate determination of the location of the distal-end of a fibre-optic device deep in tissue through the imaging of ballistic and snake photons using a time resolved single-photon detector array. The fibre was imaged with centimetre resolution, within clinically relevant settings and models. This technique can overcome the limitations imposed by tissue scattering in optically determining the in vivo location of fibre-optic medical instruments."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.05572","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":""},"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":"2026-05-18T00:37:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4CfxgJaSNeYs4qKwPVbE9s82JCzhO/dJrDvGbPkXr95GCTD3kyJSQwvPFISZWz+LAihCfiuczl4l7R2ostzVDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T15:07:56.580483Z"},"content_sha256":"884e9ffc24e060b1aa4922bb0967f9f557ffbeb046a246947d9ba79c3d0b142c","schema_version":"1.0","event_id":"sha256:884e9ffc24e060b1aa4922bb0967f9f557ffbeb046a246947d9ba79c3d0b142c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/25DHX5AU46BN7FYI3AC6Q6IHYQ/bundle.json","state_url":"https://pith.science/pith/25DHX5AU46BN7FYI3AC6Q6IHYQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/25DHX5AU46BN7FYI3AC6Q6IHYQ/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":"2026-06-26T15:07:56Z","links":{"resolver":"https://pith.science/pith/25DHX5AU46BN7FYI3AC6Q6IHYQ","bundle":"https://pith.science/pith/25DHX5AU46BN7FYI3AC6Q6IHYQ/bundle.json","state":"https://pith.science/pith/25DHX5AU46BN7FYI3AC6Q6IHYQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/25DHX5AU46BN7FYI3AC6Q6IHYQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:25DHX5AU46BN7FYI3AC6Q6IHYQ","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":"70c3912741d9787b441bdbace743afbd3ec036a082e244caaad0fd89abaf6bf0","cross_cats_sorted":["physics.bio-ph","physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T22:09:09Z","title_canon_sha256":"577b77e97b06c021e213278482bdf0dee8746af93bde7edc1728810bb0d4d6ec"},"schema_version":"1.0","source":{"id":"1703.05572","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.05572","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"arxiv_version","alias_value":"1703.05572v2","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.05572","created_at":"2026-05-18T00:37:52Z"},{"alias_kind":"pith_short_12","alias_value":"25DHX5AU46BN","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"25DHX5AU46BN7FYI","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"25DHX5AU","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:884e9ffc24e060b1aa4922bb0967f9f557ffbeb046a246947d9ba79c3d0b142c","target":"graph","created_at":"2026-05-18T00:37:52Z","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 demonstrate determination of the location of the distal-end of a fibre-optic device deep in tissue through the imaging of ballistic and snake photons using a time resolved single-photon detector array. The fibre was imaged with centimetre resolution, within clinically relevant settings and models. This technique can overcome the limitations imposed by tissue scattering in optically determining the in vivo location of fibre-optic medical instruments.","authors_text":"B. Mills, K. Dhaliwal, M. Bradley, M. G. Tanner, R. K. Henderson, R. R. Thomson, T. H. Craven, T. R. Choudhary","cross_cats":["physics.bio-ph","physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T22:09:09Z","title":"Ballistic and snake photon imaging for locating optical endomicroscopy fibres"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.05572","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":"sha256:41f4c54af72ffa81b65f10bbbd902883ac70d2edae163bc8631495132cd06b5a","target":"record","created_at":"2026-05-18T00:37:52Z","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":"70c3912741d9787b441bdbace743afbd3ec036a082e244caaad0fd89abaf6bf0","cross_cats_sorted":["physics.bio-ph","physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T22:09:09Z","title_canon_sha256":"577b77e97b06c021e213278482bdf0dee8746af93bde7edc1728810bb0d4d6ec"},"schema_version":"1.0","source":{"id":"1703.05572","kind":"arxiv","version":2}},"canonical_sha256":"d7467bf414e782df9708d805e87907c42d82f25e689525e09aa59ce897e1eb64","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7467bf414e782df9708d805e87907c42d82f25e689525e09aa59ce897e1eb64","first_computed_at":"2026-05-18T00:37:52.572624Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:52.572624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"toNYpa6RhQU9z8FtqFnYSgXu5OAal0fibgQ1bXTzC7ksZDxPL/h8Gdyo0wAJMscnT5CkOQiM9bcux27MDDLMDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:52.573161Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.05572","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:41f4c54af72ffa81b65f10bbbd902883ac70d2edae163bc8631495132cd06b5a","sha256:884e9ffc24e060b1aa4922bb0967f9f557ffbeb046a246947d9ba79c3d0b142c"],"state_sha256":"50f8e0265b81b051a62ebf1288d774d9e7f0d050c6cc826d42777d60394d7f69"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"12N0FkVyX7aQIohYHqRr4Cj6TiAbzTlNiZRI5oLHpSJVRstdL7VBxBnLNlO7HFnhYdwgdu9xzc/Ktf5KXh6ACA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T15:07:56.582461Z","bundle_sha256":"5c757a3d40be09f2e32134aaf46fb9e913e480af98f502a61bc3f8d9144cbc84"}}