{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:IMVHUIWECSQPROQVQW2URDS6LO","short_pith_number":"pith:IMVHUIWE","canonical_record":{"source":{"id":"2507.14557","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2025-07-19T09:38:30Z","cross_cats_sorted":["physics.bio-ph"],"title_canon_sha256":"35656a291210b2e65af5c25d59cea14cd1c69c8946632e2ddf03558f5d5a4453","abstract_canon_sha256":"ffeba0cdfb332b558ab3a16937b47553e8186cb5406f1a1ef92b2fb53529a8eb"},"schema_version":"1.0"},"canonical_sha256":"432a7a22c414a0f8ba1585b5488e5e5b9ca59667e28122d3d68ac03fc7ef9215","source":{"kind":"arxiv","id":"2507.14557","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.14557","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"arxiv_version","alias_value":"2507.14557v1","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.14557","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"pith_short_12","alias_value":"IMVHUIWECSQP","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"pith_short_16","alias_value":"IMVHUIWECSQPROQV","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"pith_short_8","alias_value":"IMVHUIWE","created_at":"2026-07-05T11:40:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:IMVHUIWECSQPROQVQW2URDS6LO","target":"record","payload":{"canonical_record":{"source":{"id":"2507.14557","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2025-07-19T09:38:30Z","cross_cats_sorted":["physics.bio-ph"],"title_canon_sha256":"35656a291210b2e65af5c25d59cea14cd1c69c8946632e2ddf03558f5d5a4453","abstract_canon_sha256":"ffeba0cdfb332b558ab3a16937b47553e8186cb5406f1a1ef92b2fb53529a8eb"},"schema_version":"1.0"},"canonical_sha256":"432a7a22c414a0f8ba1585b5488e5e5b9ca59667e28122d3d68ac03fc7ef9215","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:40:09.435175Z","signature_b64":"O39yfc5Z5yc9ehCiVggsKet6D8fFQeyKZp2VV+XQtxe4zW+5fnSMQI5qM4U3Mf4H1EpiCAdMLX4V+/tP38CODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"432a7a22c414a0f8ba1585b5488e5e5b9ca59667e28122d3d68ac03fc7ef9215","last_reissued_at":"2026-07-05T11:40:09.434693Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:40:09.434693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.14557","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":"2026-07-05T11:40:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/pxu35e0lF3a9vS9L8cMX4g+UhyFV1R6OoQAZZwuERvTN1NrKmHCukAXOmo5RxgsFvyWBLE28WI3O/YjezbjAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-12T02:25:25.721573Z"},"content_sha256":"ca5fbabcf143297b65778360fa0daefafd515576460f0d1d4ca66a301661c4a8","schema_version":"1.0","event_id":"sha256:ca5fbabcf143297b65778360fa0daefafd515576460f0d1d4ca66a301661c4a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:IMVHUIWECSQPROQVQW2URDS6LO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analyzing Blood Glucose Levels with Near Infra-Red Spectroscopy and Chemometric Multivariate Methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph"],"primary_cat":"physics.med-ph","authors_text":"Arian Mousavi Madani, Hadi Barati, Mehdi Fardmanesh, Soheil Moradi","submitted_at":"2025-07-19T09:38:30Z","abstract_excerpt":"In this work, the blood NIR absorbances are recorded using the FT-IR method. It is shown that when the absorbance curves are multiplied by the first derivative of the water absorbance spectrum as well as by the first derivative of the glucose absorbance, the peaks related to the water interferent in the blood are effectively removed from the blood absorbance spectra, allowing for better distinction of the peaks of the blood glucose. The PCR prediction using this method shows smaller errors compared to the PCR employing the net absorbances, while the number of derived principal components is sm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.14557","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/2507.14557/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":"2026-07-05T11:40:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8yrVh+tj+ykF5iGG+PZy4gNM8hyqIxwiBWAVcrqKHBhxgllu7X4bbV9zG0KDyuda6pRPMBvCmww7/TBuFv1pDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-12T02:25:25.722234Z"},"content_sha256":"42ffd187c17f0d3f7ef87f73bb9c63dc1f8547678fe3fa8a9e4fdc431be5c756","schema_version":"1.0","event_id":"sha256:42ffd187c17f0d3f7ef87f73bb9c63dc1f8547678fe3fa8a9e4fdc431be5c756"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IMVHUIWECSQPROQVQW2URDS6LO/bundle.json","state_url":"https://pith.science/pith/IMVHUIWECSQPROQVQW2URDS6LO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IMVHUIWECSQPROQVQW2URDS6LO/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":"2026-07-12T02:25:25Z","links":{"resolver":"https://pith.science/pith/IMVHUIWECSQPROQVQW2URDS6LO","bundle":"https://pith.science/pith/IMVHUIWECSQPROQVQW2URDS6LO/bundle.json","state":"https://pith.science/pith/IMVHUIWECSQPROQVQW2URDS6LO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IMVHUIWECSQPROQVQW2URDS6LO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:IMVHUIWECSQPROQVQW2URDS6LO","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":"ffeba0cdfb332b558ab3a16937b47553e8186cb5406f1a1ef92b2fb53529a8eb","cross_cats_sorted":["physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2025-07-19T09:38:30Z","title_canon_sha256":"35656a291210b2e65af5c25d59cea14cd1c69c8946632e2ddf03558f5d5a4453"},"schema_version":"1.0","source":{"id":"2507.14557","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.14557","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"arxiv_version","alias_value":"2507.14557v1","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.14557","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"pith_short_12","alias_value":"IMVHUIWECSQP","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"pith_short_16","alias_value":"IMVHUIWECSQPROQV","created_at":"2026-07-05T11:40:09Z"},{"alias_kind":"pith_short_8","alias_value":"IMVHUIWE","created_at":"2026-07-05T11:40:09Z"}],"graph_snapshots":[{"event_id":"sha256:42ffd187c17f0d3f7ef87f73bb9c63dc1f8547678fe3fa8a9e4fdc431be5c756","target":"graph","created_at":"2026-07-05T11:40:09Z","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/2507.14557/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, the blood NIR absorbances are recorded using the FT-IR method. It is shown that when the absorbance curves are multiplied by the first derivative of the water absorbance spectrum as well as by the first derivative of the glucose absorbance, the peaks related to the water interferent in the blood are effectively removed from the blood absorbance spectra, allowing for better distinction of the peaks of the blood glucose. The PCR prediction using this method shows smaller errors compared to the PCR employing the net absorbances, while the number of derived principal components is sm","authors_text":"Arian Mousavi Madani, Hadi Barati, Mehdi Fardmanesh, Soheil Moradi","cross_cats":["physics.bio-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2025-07-19T09:38:30Z","title":"Analyzing Blood Glucose Levels with Near Infra-Red Spectroscopy and Chemometric Multivariate Methods"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.14557","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:ca5fbabcf143297b65778360fa0daefafd515576460f0d1d4ca66a301661c4a8","target":"record","created_at":"2026-07-05T11:40:09Z","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":"ffeba0cdfb332b558ab3a16937b47553e8186cb5406f1a1ef92b2fb53529a8eb","cross_cats_sorted":["physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2025-07-19T09:38:30Z","title_canon_sha256":"35656a291210b2e65af5c25d59cea14cd1c69c8946632e2ddf03558f5d5a4453"},"schema_version":"1.0","source":{"id":"2507.14557","kind":"arxiv","version":1}},"canonical_sha256":"432a7a22c414a0f8ba1585b5488e5e5b9ca59667e28122d3d68ac03fc7ef9215","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"432a7a22c414a0f8ba1585b5488e5e5b9ca59667e28122d3d68ac03fc7ef9215","first_computed_at":"2026-07-05T11:40:09.434693Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:40:09.434693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O39yfc5Z5yc9ehCiVggsKet6D8fFQeyKZp2VV+XQtxe4zW+5fnSMQI5qM4U3Mf4H1EpiCAdMLX4V+/tP38CODQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:40:09.435175Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.14557","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca5fbabcf143297b65778360fa0daefafd515576460f0d1d4ca66a301661c4a8","sha256:42ffd187c17f0d3f7ef87f73bb9c63dc1f8547678fe3fa8a9e4fdc431be5c756"],"state_sha256":"c7a1521f4e894cb2e541fd264f7a8f22d3374f995fc80d5f6c084759e9b51b02"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"++1DBGiL9UDfrhLFzcMjVPDBuIJWL6ZYI1TqVsSy/Gf0mMPG6Jhy6yWe+oS1521+7xGDBSvBLA02seH73RLEDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-12T02:25:25.727750Z","bundle_sha256":"ffdb578866122446b3bcc1bdce4a874ddce1dc1f8e15e138158b4b58767281a5"}}