{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:2PTM6AMRGTD3E2554RUWNFWQKS","short_pith_number":"pith:2PTM6AMR","canonical_record":{"source":{"id":"2012.01630","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2020-12-03T01:48:13Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"a033c5bd4e4892b20f3132005656a674d1e59ad2ae48780a50e53306dcfb7ad3","abstract_canon_sha256":"ed81b598bd4320d141c957d71d8136423bf240816537913ee17fb8a452ec27c8"},"schema_version":"1.0"},"canonical_sha256":"d3e6cf019134c7b26bbde4696696d054b42fc90401309802fe874e92039f979c","source":{"kind":"arxiv","id":"2012.01630","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.01630","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"arxiv_version","alias_value":"2012.01630v1","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.01630","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"pith_short_12","alias_value":"2PTM6AMRGTD3","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"pith_short_16","alias_value":"2PTM6AMRGTD3E255","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"pith_short_8","alias_value":"2PTM6AMR","created_at":"2026-07-05T01:56:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:2PTM6AMRGTD3E2554RUWNFWQKS","target":"record","payload":{"canonical_record":{"source":{"id":"2012.01630","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2020-12-03T01:48:13Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"a033c5bd4e4892b20f3132005656a674d1e59ad2ae48780a50e53306dcfb7ad3","abstract_canon_sha256":"ed81b598bd4320d141c957d71d8136423bf240816537913ee17fb8a452ec27c8"},"schema_version":"1.0"},"canonical_sha256":"d3e6cf019134c7b26bbde4696696d054b42fc90401309802fe874e92039f979c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:56:48.475931Z","signature_b64":"LXwwrzoHti9Qe+8Lu9s7i2qHibA+su74XSzCYAQPfG+2LBxuwRyAbLDyhvIG0BgMeZmSFw7sgfyiWmv41secAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3e6cf019134c7b26bbde4696696d054b42fc90401309802fe874e92039f979c","last_reissued_at":"2026-07-05T01:56:48.475577Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:56:48.475577Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.01630","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":"2026-07-05T01:56:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/rIsEtquVJqJT2S/9++VUESmcOeQKqd6hA+Iy0hv+LnqYzDWl4uoiudF+X4BEr5I/bBKm3hsCGp+MhrH/amcAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:11:50.456445Z"},"content_sha256":"ced8433c8ea807ef8aa91ab79f3df7aa376ed137dd430fac1cc8d6949904a844","schema_version":"1.0","event_id":"sha256:ced8433c8ea807ef8aa91ab79f3df7aa376ed137dd430fac1cc8d6949904a844"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:2PTM6AMRGTD3E2554RUWNFWQKS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Single Sensor Based Multispectral Imaging Camera using a Narrow Spectral Band Colour Mosaic Integrated on the Monochrome CMOS Image Sensor","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"physics.optics","authors_text":"Ampalavanapillai Nirmalathas, Arman Ahnood, Dan Smith, Efstratios Skafidas, Fatima Eftekhari, Kumar Ganesan, MD Hemayet Uddin, Paul Beckett, Ranjith Rajasekharan Unnithan, Xin He, Yajing Liu","submitted_at":"2020-12-03T01:48:13Z","abstract_excerpt":"A multispectral image camera captures image data within specific wavelength ranges in narrow wavelength bands across the electromagnetic spectrum. Images from a multispectral camera can extract additional information that the human eye or a normal camera fails to capture and thus may have important applications in precision agriculture, forestry, medicine and object identification. Conventional multispectral cameras are made up of multiple image sensors each fitted with a narrow passband wavelength filter and optics, which makes them heavy, bulky, power hungry and very expensive. The multiple "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.01630","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/2012.01630/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":"2026-07-05T01:56:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VGXUb//uY1GuKhwxR7z6D8XND0c50qi7Ikjy7jB5Pwf/rQQEcfQyD7fR+HszM8lvPsXym8kalJP5FhExI3k2Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:11:50.456972Z"},"content_sha256":"849342fd1e2ba841475169ce51ee0ba9fd362a3d67663d1f1b7b06f85b42b358","schema_version":"1.0","event_id":"sha256:849342fd1e2ba841475169ce51ee0ba9fd362a3d67663d1f1b7b06f85b42b358"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2PTM6AMRGTD3E2554RUWNFWQKS/bundle.json","state_url":"https://pith.science/pith/2PTM6AMRGTD3E2554RUWNFWQKS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2PTM6AMRGTD3E2554RUWNFWQKS/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":"2026-08-03T16:11:50Z","links":{"resolver":"https://pith.science/pith/2PTM6AMRGTD3E2554RUWNFWQKS","bundle":"https://pith.science/pith/2PTM6AMRGTD3E2554RUWNFWQKS/bundle.json","state":"https://pith.science/pith/2PTM6AMRGTD3E2554RUWNFWQKS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2PTM6AMRGTD3E2554RUWNFWQKS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:2PTM6AMRGTD3E2554RUWNFWQKS","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":"ed81b598bd4320d141c957d71d8136423bf240816537913ee17fb8a452ec27c8","cross_cats_sorted":["eess.IV"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2020-12-03T01:48:13Z","title_canon_sha256":"a033c5bd4e4892b20f3132005656a674d1e59ad2ae48780a50e53306dcfb7ad3"},"schema_version":"1.0","source":{"id":"2012.01630","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.01630","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"arxiv_version","alias_value":"2012.01630v1","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.01630","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"pith_short_12","alias_value":"2PTM6AMRGTD3","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"pith_short_16","alias_value":"2PTM6AMRGTD3E255","created_at":"2026-07-05T01:56:48Z"},{"alias_kind":"pith_short_8","alias_value":"2PTM6AMR","created_at":"2026-07-05T01:56:48Z"}],"graph_snapshots":[{"event_id":"sha256:849342fd1e2ba841475169ce51ee0ba9fd362a3d67663d1f1b7b06f85b42b358","target":"graph","created_at":"2026-07-05T01:56:48Z","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/2012.01630/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A multispectral image camera captures image data within specific wavelength ranges in narrow wavelength bands across the electromagnetic spectrum. Images from a multispectral camera can extract additional information that the human eye or a normal camera fails to capture and thus may have important applications in precision agriculture, forestry, medicine and object identification. Conventional multispectral cameras are made up of multiple image sensors each fitted with a narrow passband wavelength filter and optics, which makes them heavy, bulky, power hungry and very expensive. The multiple ","authors_text":"Ampalavanapillai Nirmalathas, Arman Ahnood, Dan Smith, Efstratios Skafidas, Fatima Eftekhari, Kumar Ganesan, MD Hemayet Uddin, Paul Beckett, Ranjith Rajasekharan Unnithan, Xin He, Yajing Liu","cross_cats":["eess.IV"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2020-12-03T01:48:13Z","title":"A Single Sensor Based Multispectral Imaging Camera using a Narrow Spectral Band Colour Mosaic Integrated on the Monochrome CMOS Image Sensor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.01630","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:ced8433c8ea807ef8aa91ab79f3df7aa376ed137dd430fac1cc8d6949904a844","target":"record","created_at":"2026-07-05T01:56:48Z","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":"ed81b598bd4320d141c957d71d8136423bf240816537913ee17fb8a452ec27c8","cross_cats_sorted":["eess.IV"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.optics","submitted_at":"2020-12-03T01:48:13Z","title_canon_sha256":"a033c5bd4e4892b20f3132005656a674d1e59ad2ae48780a50e53306dcfb7ad3"},"schema_version":"1.0","source":{"id":"2012.01630","kind":"arxiv","version":1}},"canonical_sha256":"d3e6cf019134c7b26bbde4696696d054b42fc90401309802fe874e92039f979c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3e6cf019134c7b26bbde4696696d054b42fc90401309802fe874e92039f979c","first_computed_at":"2026-07-05T01:56:48.475577Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:56:48.475577Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LXwwrzoHti9Qe+8Lu9s7i2qHibA+su74XSzCYAQPfG+2LBxuwRyAbLDyhvIG0BgMeZmSFw7sgfyiWmv41secAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:56:48.475931Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.01630","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ced8433c8ea807ef8aa91ab79f3df7aa376ed137dd430fac1cc8d6949904a844","sha256:849342fd1e2ba841475169ce51ee0ba9fd362a3d67663d1f1b7b06f85b42b358"],"state_sha256":"d55cfef5fce9f80e776c716f74e75bf0511fa21bfabd313ad9f1e0dea677e6a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nAtwLiGY9I9gDorlXuuymcPiqtrfoSdOgPEajG+W4pqEjIhnxBuVQPzbQKJBXJmZNgdMtCMY4vjDW9nCKmMPAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:11:50.463468Z","bundle_sha256":"360f68e25851ac9cc87c14a16b64392d093d5fa5e3c1a3cdaa49177f0a0c4d0b"}}