{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:VKEQHDDNYXKTOP7KBVQ3ZZ6QYS","short_pith_number":"pith:VKEQHDDN","canonical_record":{"source":{"id":"2101.02430","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2021-01-07T08:45:12Z","cross_cats_sorted":[],"title_canon_sha256":"07d45d22d5be437cf5aa82c01321e93da9aa924e7431442fcf35bee2c7f2acba","abstract_canon_sha256":"0c8f54311a24d36c6ecd1583390d1a83bcc138a5b08b2a055916981ba8a27dd5"},"schema_version":"1.0"},"canonical_sha256":"aa89038c6dc5d5373fea0d61bce7d0c4a42ef55fb5554815b02afef43d7a96f7","source":{"kind":"arxiv","id":"2101.02430","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.02430","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"arxiv_version","alias_value":"2101.02430v1","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.02430","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"pith_short_12","alias_value":"VKEQHDDNYXKT","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"pith_short_16","alias_value":"VKEQHDDNYXKTOP7K","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"pith_short_8","alias_value":"VKEQHDDN","created_at":"2026-07-05T02:05:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:VKEQHDDNYXKTOP7KBVQ3ZZ6QYS","target":"record","payload":{"canonical_record":{"source":{"id":"2101.02430","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2021-01-07T08:45:12Z","cross_cats_sorted":[],"title_canon_sha256":"07d45d22d5be437cf5aa82c01321e93da9aa924e7431442fcf35bee2c7f2acba","abstract_canon_sha256":"0c8f54311a24d36c6ecd1583390d1a83bcc138a5b08b2a055916981ba8a27dd5"},"schema_version":"1.0"},"canonical_sha256":"aa89038c6dc5d5373fea0d61bce7d0c4a42ef55fb5554815b02afef43d7a96f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:05:13.542482Z","signature_b64":"1Isc7gmBZVS3E53SrotxebotoXRI8DRg2/NESwHrE1CxYFa2HW1C/jw4mnibxdRsw7Rf536dHxyFzmKrv25ODw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa89038c6dc5d5373fea0d61bce7d0c4a42ef55fb5554815b02afef43d7a96f7","last_reissued_at":"2026-07-05T02:05:13.542136Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:05:13.542136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.02430","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":"2026-07-05T02:05:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MpNch6pPC9P77Q3sk4mPxoVX90oVox3DqPQ8jqJ0HHilMUkZNu5St23VBjeFOxWG6ZyAMagjckwRup5qBGKpCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T01:19:38.888665Z"},"content_sha256":"6a0c3b99aff8e46ebd6d4ca484730983356c0421a128b76709a6c9176885e467","schema_version":"1.0","event_id":"sha256:6a0c3b99aff8e46ebd6d4ca484730983356c0421a128b76709a6c9176885e467"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:VKEQHDDNYXKTOP7KBVQ3ZZ6QYS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanotechnology for biosensors: A Review","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Aishwaryadev Banerjee, Carlos H. Mastrangelo, Swagata Maity","submitted_at":"2021-01-07T08:45:12Z","abstract_excerpt":"Biosensors are essential tools which have been traditionally used to monitor environmental pollution, detect the presence of toxic elements and biohazardous bacteria or virus in organic matter and biomolecules for clinical diagnostics. In the last couple of decades, the scientific community has witnessed their widespread application in the fields of military, health care, industrial process control, environmental monitoring, food-quality control, and microbiology. Biosensor technology has greatly evolved from the in vitro studies based on the biosensing ability of organic beings to the highly "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.02430","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/2101.02430/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":"2026-07-05T02:05:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iUVJCMnXtBfzMFANCoR+ZSVjbVLDe2wdabp+azi0NuR3HJJkeRaKpsa/M129piEdidEtq1zzYD3jsXo6O5gtDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T01:19:38.889183Z"},"content_sha256":"8b45e92646425d858d828e18ef7184ffa04fe6bac6ac0c4c01c6d76b4e68af1b","schema_version":"1.0","event_id":"sha256:8b45e92646425d858d828e18ef7184ffa04fe6bac6ac0c4c01c6d76b4e68af1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VKEQHDDNYXKTOP7KBVQ3ZZ6QYS/bundle.json","state_url":"https://pith.science/pith/VKEQHDDNYXKTOP7KBVQ3ZZ6QYS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VKEQHDDNYXKTOP7KBVQ3ZZ6QYS/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":"2026-08-15T01:19:38Z","links":{"resolver":"https://pith.science/pith/VKEQHDDNYXKTOP7KBVQ3ZZ6QYS","bundle":"https://pith.science/pith/VKEQHDDNYXKTOP7KBVQ3ZZ6QYS/bundle.json","state":"https://pith.science/pith/VKEQHDDNYXKTOP7KBVQ3ZZ6QYS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VKEQHDDNYXKTOP7KBVQ3ZZ6QYS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:VKEQHDDNYXKTOP7KBVQ3ZZ6QYS","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":"0c8f54311a24d36c6ecd1583390d1a83bcc138a5b08b2a055916981ba8a27dd5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2021-01-07T08:45:12Z","title_canon_sha256":"07d45d22d5be437cf5aa82c01321e93da9aa924e7431442fcf35bee2c7f2acba"},"schema_version":"1.0","source":{"id":"2101.02430","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.02430","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"arxiv_version","alias_value":"2101.02430v1","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.02430","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"pith_short_12","alias_value":"VKEQHDDNYXKT","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"pith_short_16","alias_value":"VKEQHDDNYXKTOP7K","created_at":"2026-07-05T02:05:13Z"},{"alias_kind":"pith_short_8","alias_value":"VKEQHDDN","created_at":"2026-07-05T02:05:13Z"}],"graph_snapshots":[{"event_id":"sha256:8b45e92646425d858d828e18ef7184ffa04fe6bac6ac0c4c01c6d76b4e68af1b","target":"graph","created_at":"2026-07-05T02:05:13Z","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/2101.02430/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Biosensors are essential tools which have been traditionally used to monitor environmental pollution, detect the presence of toxic elements and biohazardous bacteria or virus in organic matter and biomolecules for clinical diagnostics. In the last couple of decades, the scientific community has witnessed their widespread application in the fields of military, health care, industrial process control, environmental monitoring, food-quality control, and microbiology. Biosensor technology has greatly evolved from the in vitro studies based on the biosensing ability of organic beings to the highly ","authors_text":"Aishwaryadev Banerjee, Carlos H. Mastrangelo, Swagata Maity","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2021-01-07T08:45:12Z","title":"Nanotechnology for biosensors: A Review"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.02430","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":"sha256:6a0c3b99aff8e46ebd6d4ca484730983356c0421a128b76709a6c9176885e467","target":"record","created_at":"2026-07-05T02:05:13Z","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":"0c8f54311a24d36c6ecd1583390d1a83bcc138a5b08b2a055916981ba8a27dd5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2021-01-07T08:45:12Z","title_canon_sha256":"07d45d22d5be437cf5aa82c01321e93da9aa924e7431442fcf35bee2c7f2acba"},"schema_version":"1.0","source":{"id":"2101.02430","kind":"arxiv","version":1}},"canonical_sha256":"aa89038c6dc5d5373fea0d61bce7d0c4a42ef55fb5554815b02afef43d7a96f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa89038c6dc5d5373fea0d61bce7d0c4a42ef55fb5554815b02afef43d7a96f7","first_computed_at":"2026-07-05T02:05:13.542136Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:05:13.542136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1Isc7gmBZVS3E53SrotxebotoXRI8DRg2/NESwHrE1CxYFa2HW1C/jw4mnibxdRsw7Rf536dHxyFzmKrv25ODw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:05:13.542482Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.02430","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a0c3b99aff8e46ebd6d4ca484730983356c0421a128b76709a6c9176885e467","sha256:8b45e92646425d858d828e18ef7184ffa04fe6bac6ac0c4c01c6d76b4e68af1b"],"state_sha256":"a1e8db0964e6ecf08dd58080eafc2161fa18872b5684c3bc8240bdcf49400896"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wtfD92qCpgGeO8dqpV9y4EBFTcRns66l+ilzTGmh7MePgYxDwNTJzPUBpZ/hiPAM8PX+ddciDMEYtPfMMWPSCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T01:19:38.895096Z","bundle_sha256":"06a95376c8df04ca82cd54d63826d16779902ece2559b30f244f95b9cd98cc26"}}