{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:IYHLROJY4MOP7WVQF6UY6CEVXE","short_pith_number":"pith:IYHLROJY","canonical_record":{"source":{"id":"1209.4045","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-09-18T18:05:00Z","cross_cats_sorted":["physics.ins-det","physics.med-ph"],"title_canon_sha256":"650551d794647e02066e502df41c8f47a2be3769d2d599e944788b919ea991f6","abstract_canon_sha256":"11c316bd0ea8a10943857ffbcb71f68fe6befe2797aa352f390c003191094cf9"},"schema_version":"1.0"},"canonical_sha256":"460eb8b938e31cffdab02fa98f0895b93c23988519246849eaadfe06a6970165","source":{"kind":"arxiv","id":"1209.4045","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.4045","created_at":"2026-05-18T03:45:21Z"},{"alias_kind":"arxiv_version","alias_value":"1209.4045v1","created_at":"2026-05-18T03:45:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.4045","created_at":"2026-05-18T03:45:21Z"},{"alias_kind":"pith_short_12","alias_value":"IYHLROJY4MOP","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"IYHLROJY4MOP7WVQ","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"IYHLROJY","created_at":"2026-05-18T12:27:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:IYHLROJY4MOP7WVQF6UY6CEVXE","target":"record","payload":{"canonical_record":{"source":{"id":"1209.4045","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-09-18T18:05:00Z","cross_cats_sorted":["physics.ins-det","physics.med-ph"],"title_canon_sha256":"650551d794647e02066e502df41c8f47a2be3769d2d599e944788b919ea991f6","abstract_canon_sha256":"11c316bd0ea8a10943857ffbcb71f68fe6befe2797aa352f390c003191094cf9"},"schema_version":"1.0"},"canonical_sha256":"460eb8b938e31cffdab02fa98f0895b93c23988519246849eaadfe06a6970165","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:45:21.925971Z","signature_b64":"mwFX12KRh/iekuN32DxZmaUAvrsY2Exw22e4lVVlqtQsA2KLD5/0GCsTnEiJXY7j4HMQuM953GeXzp4WOJKTAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"460eb8b938e31cffdab02fa98f0895b93c23988519246849eaadfe06a6970165","last_reissued_at":"2026-05-18T03:45:21.925426Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:45:21.925426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.4045","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":"2026-05-18T03:45:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D4OTGaQaAFgg2L0KFXoje8BxmX1qtdDfAJp1/IrALBXTEWO7P9P/1EQ3uoUyDq6N8LEUktb/bqYgSywRoAEIAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:10:03.085627Z"},"content_sha256":"5b049595d34dbe2739c0e58a2bd93daa4f668ad2b6d66b192b706fa574aa0b4f","schema_version":"1.0","event_id":"sha256:5b049595d34dbe2739c0e58a2bd93daa4f668ad2b6d66b192b706fa574aa0b4f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:IYHLROJY4MOP7WVQF6UY6CEVXE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gigapixel microscopy using a flatbed scanner","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det","physics.med-ph"],"primary_cat":"physics.optics","authors_text":"Changhuei Yang, Guoan Zheng, Xiaoze Ou","submitted_at":"2012-09-18T18:05:00Z","abstract_excerpt":"Microscopy imaging systems with a very wide field-of-view (FOV) are highly sought in biomedical applications. In this paper, we report a wide FOV microscopy imaging system that uses a low-cost scanner and a closed-circuit-television (CCTV) lens. We show that such an imaging system is capable to capture a 10 mm * 7.5 mm FOV image with 0.77 micron resolution, resulting in 0.54 gigapixels (109 pixels) across the entire image (26400 pixels * 20400 pixels). The resolution and field curve of the proposed system were characterized by imaging a USAF resolution target and a hole-array target. A 1.6 gig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.4045","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":"2026-05-18T03:45:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0jhQJV52yUysPq8XpbIQ/DzEw3TZOdfUiN1uF3tEHsx9cRaNuHJFQjPLM5jOXgn2cUSsDqf+KJfYMfEqcs/tDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:10:03.086236Z"},"content_sha256":"4b7ec5e9abb82a7ff18aebdf9560bdd4b10a32b0a7f333bb427b584b083a272e","schema_version":"1.0","event_id":"sha256:4b7ec5e9abb82a7ff18aebdf9560bdd4b10a32b0a7f333bb427b584b083a272e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IYHLROJY4MOP7WVQF6UY6CEVXE/bundle.json","state_url":"https://pith.science/pith/IYHLROJY4MOP7WVQF6UY6CEVXE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IYHLROJY4MOP7WVQF6UY6CEVXE/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":"2026-05-30T20:10:03Z","links":{"resolver":"https://pith.science/pith/IYHLROJY4MOP7WVQF6UY6CEVXE","bundle":"https://pith.science/pith/IYHLROJY4MOP7WVQF6UY6CEVXE/bundle.json","state":"https://pith.science/pith/IYHLROJY4MOP7WVQF6UY6CEVXE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IYHLROJY4MOP7WVQF6UY6CEVXE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:IYHLROJY4MOP7WVQF6UY6CEVXE","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":"11c316bd0ea8a10943857ffbcb71f68fe6befe2797aa352f390c003191094cf9","cross_cats_sorted":["physics.ins-det","physics.med-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-09-18T18:05:00Z","title_canon_sha256":"650551d794647e02066e502df41c8f47a2be3769d2d599e944788b919ea991f6"},"schema_version":"1.0","source":{"id":"1209.4045","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.4045","created_at":"2026-05-18T03:45:21Z"},{"alias_kind":"arxiv_version","alias_value":"1209.4045v1","created_at":"2026-05-18T03:45:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.4045","created_at":"2026-05-18T03:45:21Z"},{"alias_kind":"pith_short_12","alias_value":"IYHLROJY4MOP","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"IYHLROJY4MOP7WVQ","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"IYHLROJY","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:4b7ec5e9abb82a7ff18aebdf9560bdd4b10a32b0a7f333bb427b584b083a272e","target":"graph","created_at":"2026-05-18T03:45:21Z","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":"Microscopy imaging systems with a very wide field-of-view (FOV) are highly sought in biomedical applications. In this paper, we report a wide FOV microscopy imaging system that uses a low-cost scanner and a closed-circuit-television (CCTV) lens. We show that such an imaging system is capable to capture a 10 mm * 7.5 mm FOV image with 0.77 micron resolution, resulting in 0.54 gigapixels (109 pixels) across the entire image (26400 pixels * 20400 pixels). The resolution and field curve of the proposed system were characterized by imaging a USAF resolution target and a hole-array target. A 1.6 gig","authors_text":"Changhuei Yang, Guoan Zheng, Xiaoze Ou","cross_cats":["physics.ins-det","physics.med-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-09-18T18:05:00Z","title":"Gigapixel microscopy using a flatbed scanner"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.4045","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":"sha256:5b049595d34dbe2739c0e58a2bd93daa4f668ad2b6d66b192b706fa574aa0b4f","target":"record","created_at":"2026-05-18T03:45:21Z","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":"11c316bd0ea8a10943857ffbcb71f68fe6befe2797aa352f390c003191094cf9","cross_cats_sorted":["physics.ins-det","physics.med-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-09-18T18:05:00Z","title_canon_sha256":"650551d794647e02066e502df41c8f47a2be3769d2d599e944788b919ea991f6"},"schema_version":"1.0","source":{"id":"1209.4045","kind":"arxiv","version":1}},"canonical_sha256":"460eb8b938e31cffdab02fa98f0895b93c23988519246849eaadfe06a6970165","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"460eb8b938e31cffdab02fa98f0895b93c23988519246849eaadfe06a6970165","first_computed_at":"2026-05-18T03:45:21.925426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:45:21.925426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mwFX12KRh/iekuN32DxZmaUAvrsY2Exw22e4lVVlqtQsA2KLD5/0GCsTnEiJXY7j4HMQuM953GeXzp4WOJKTAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:45:21.925971Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.4045","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b049595d34dbe2739c0e58a2bd93daa4f668ad2b6d66b192b706fa574aa0b4f","sha256:4b7ec5e9abb82a7ff18aebdf9560bdd4b10a32b0a7f333bb427b584b083a272e"],"state_sha256":"0c686f6b0a172a0ae02daa39b432cfcb5c96c32ab3f2b90815e31a3b55978508"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6i2FbWUR30nfpZBQgA6HC8peulshatChgD1OsvUU8B+QybCCel/5Y/C/Klu5sxTQvMjhfUAy1EFsrVv65ztpBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T20:10:03.090308Z","bundle_sha256":"52700a899a4e5f8dccaa3b58ef736c4ebf9492bd96bc800227d7812a3968aefa"}}