{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3YK4ZV43B5GWVYXV6GTOE765HE","short_pith_number":"pith:3YK4ZV43","canonical_record":{"source":{"id":"1703.04343","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T11:42:32Z","cross_cats_sorted":[],"title_canon_sha256":"bb4db0400ea80f3b1f252d5b85242a487debd6a4cc724f0ea4faf520b7e96ba0","abstract_canon_sha256":"dc608c4667c8812e4b3378bcd07676841dd424617f9d8722c86d4e8a80262fa3"},"schema_version":"1.0"},"canonical_sha256":"de15ccd79b0f4d6ae2f5f1a6e27fdd391df46d9c1c340b2e35691fe7bcdb2413","source":{"kind":"arxiv","id":"1703.04343","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.04343","created_at":"2026-05-18T00:42:34Z"},{"alias_kind":"arxiv_version","alias_value":"1703.04343v2","created_at":"2026-05-18T00:42:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.04343","created_at":"2026-05-18T00:42:34Z"},{"alias_kind":"pith_short_12","alias_value":"3YK4ZV43B5GW","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3YK4ZV43B5GWVYXV","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3YK4ZV43","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3YK4ZV43B5GWVYXV6GTOE765HE","target":"record","payload":{"canonical_record":{"source":{"id":"1703.04343","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T11:42:32Z","cross_cats_sorted":[],"title_canon_sha256":"bb4db0400ea80f3b1f252d5b85242a487debd6a4cc724f0ea4faf520b7e96ba0","abstract_canon_sha256":"dc608c4667c8812e4b3378bcd07676841dd424617f9d8722c86d4e8a80262fa3"},"schema_version":"1.0"},"canonical_sha256":"de15ccd79b0f4d6ae2f5f1a6e27fdd391df46d9c1c340b2e35691fe7bcdb2413","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:34.811888Z","signature_b64":"RwaCYnhJv5LCy1TBFBMqqMtyDZNTqEtaAlEWPX5NT+yel0OuR2RnKm+OOLwzMf9xrzsklSPds2X//uYWtHQkAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de15ccd79b0f4d6ae2f5f1a6e27fdd391df46d9c1c340b2e35691fe7bcdb2413","last_reissued_at":"2026-05-18T00:42:34.811294Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:34.811294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.04343","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":"2026-05-18T00:42:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xH7pNHEjP235TbkXckoaLIDNUVILBpRTXlnhIDWbWhuKT/rHbenjCMp1Dx/6nRolDJuwg8NcmeYByyYCX0QABw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T13:23:43.271726Z"},"content_sha256":"e88f08a167423914bd1396af939060bb21ad5447a7cda84fa4ee1ae9cbb4c7e7","schema_version":"1.0","event_id":"sha256:e88f08a167423914bd1396af939060bb21ad5447a7cda84fa4ee1ae9cbb4c7e7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3YK4ZV43B5GWVYXV6GTOE765HE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diattenuation of Brain Tissue and its Impact on 3D Polarized Light Imaging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Daniel Weigand, Hasan K\\\"ose, Julia Reckfort, Katrin Amunts, Markus Axer, Miriam Menzel","submitted_at":"2017-03-13T11:42:32Z","abstract_excerpt":"3D-Polarized Light Imaging (3D-PLI) reconstructs nerve fibers in histological brain sections by measuring their birefringence. This study investigates another effect caused by the optical anisotropy of brain tissue - diattenuation. Based on numerical and experimental studies and a complete analytical description of the optical system, the diattenuation was determined to be below 4 % in rat brain tissue. It was demonstrated that the diattenuation effect has negligible impact on the fiber orientations derived by 3D-PLI. The diattenuation signal, however, was found to highlight different anatomic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.04343","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":"2026-05-18T00:42:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s5BqBmZawjFYsZ8EejHxwLgDBN0xhUVXYgyQmOfUy/2YtNY9d5gEXCL6H+kcMIM9XhCuMG7/qpijTZO0NEA+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T13:23:43.272360Z"},"content_sha256":"15ab988fb086fde3ade43cb72a71c9c160e63e4bb2051839b05fffb522526c9d","schema_version":"1.0","event_id":"sha256:15ab988fb086fde3ade43cb72a71c9c160e63e4bb2051839b05fffb522526c9d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3YK4ZV43B5GWVYXV6GTOE765HE/bundle.json","state_url":"https://pith.science/pith/3YK4ZV43B5GWVYXV6GTOE765HE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3YK4ZV43B5GWVYXV6GTOE765HE/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":"2026-06-06T13:23:43Z","links":{"resolver":"https://pith.science/pith/3YK4ZV43B5GWVYXV6GTOE765HE","bundle":"https://pith.science/pith/3YK4ZV43B5GWVYXV6GTOE765HE/bundle.json","state":"https://pith.science/pith/3YK4ZV43B5GWVYXV6GTOE765HE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3YK4ZV43B5GWVYXV6GTOE765HE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3YK4ZV43B5GWVYXV6GTOE765HE","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":"dc608c4667c8812e4b3378bcd07676841dd424617f9d8722c86d4e8a80262fa3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T11:42:32Z","title_canon_sha256":"bb4db0400ea80f3b1f252d5b85242a487debd6a4cc724f0ea4faf520b7e96ba0"},"schema_version":"1.0","source":{"id":"1703.04343","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.04343","created_at":"2026-05-18T00:42:34Z"},{"alias_kind":"arxiv_version","alias_value":"1703.04343v2","created_at":"2026-05-18T00:42:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.04343","created_at":"2026-05-18T00:42:34Z"},{"alias_kind":"pith_short_12","alias_value":"3YK4ZV43B5GW","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3YK4ZV43B5GWVYXV","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3YK4ZV43","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:15ab988fb086fde3ade43cb72a71c9c160e63e4bb2051839b05fffb522526c9d","target":"graph","created_at":"2026-05-18T00:42:34Z","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":"3D-Polarized Light Imaging (3D-PLI) reconstructs nerve fibers in histological brain sections by measuring their birefringence. This study investigates another effect caused by the optical anisotropy of brain tissue - diattenuation. Based on numerical and experimental studies and a complete analytical description of the optical system, the diattenuation was determined to be below 4 % in rat brain tissue. It was demonstrated that the diattenuation effect has negligible impact on the fiber orientations derived by 3D-PLI. The diattenuation signal, however, was found to highlight different anatomic","authors_text":"Daniel Weigand, Hasan K\\\"ose, Julia Reckfort, Katrin Amunts, Markus Axer, Miriam Menzel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T11:42:32Z","title":"Diattenuation of Brain Tissue and its Impact on 3D Polarized Light Imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.04343","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:e88f08a167423914bd1396af939060bb21ad5447a7cda84fa4ee1ae9cbb4c7e7","target":"record","created_at":"2026-05-18T00:42:34Z","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":"dc608c4667c8812e4b3378bcd07676841dd424617f9d8722c86d4e8a80262fa3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-03-13T11:42:32Z","title_canon_sha256":"bb4db0400ea80f3b1f252d5b85242a487debd6a4cc724f0ea4faf520b7e96ba0"},"schema_version":"1.0","source":{"id":"1703.04343","kind":"arxiv","version":2}},"canonical_sha256":"de15ccd79b0f4d6ae2f5f1a6e27fdd391df46d9c1c340b2e35691fe7bcdb2413","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de15ccd79b0f4d6ae2f5f1a6e27fdd391df46d9c1c340b2e35691fe7bcdb2413","first_computed_at":"2026-05-18T00:42:34.811294Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:34.811294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RwaCYnhJv5LCy1TBFBMqqMtyDZNTqEtaAlEWPX5NT+yel0OuR2RnKm+OOLwzMf9xrzsklSPds2X//uYWtHQkAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:34.811888Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.04343","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e88f08a167423914bd1396af939060bb21ad5447a7cda84fa4ee1ae9cbb4c7e7","sha256:15ab988fb086fde3ade43cb72a71c9c160e63e4bb2051839b05fffb522526c9d"],"state_sha256":"baf415c2717d34b870ec2deaaae58ceb767b21a2cb0db89b39213a542426892f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t+6c6R3ifphjXn2aNAgUpthCTG1yx7agh36VvkVVSwHy83Idwy8ZvWw59NXktxyXidxMoScaiTX61BLovXIjDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T13:23:43.275930Z","bundle_sha256":"4118ec05d688be2fde37e456a33f1b4690b5e8c3ac016ec6d7c2f2ef97ba55d2"}}