{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:CUURB2UKZILLOB2DY5RDNQG6HI","short_pith_number":"pith:CUURB2UK","canonical_record":{"source":{"id":"1107.3427","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-18T13:20:13Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"2b9fc19da76f1c3ecca62356ed365008b4a4cd30474aa4bf43b4fda115d8560a","abstract_canon_sha256":"de1edd2bd0dcf985ae1c95b089bbf3005fd7f639502c71d25a59189cf47111f1"},"schema_version":"1.0"},"canonical_sha256":"152910ea8aca16b70743c76236c0de3a15074801f3aa58a60936fcd4ae7fa4ca","source":{"kind":"arxiv","id":"1107.3427","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.3427","created_at":"2026-05-18T02:01:15Z"},{"alias_kind":"arxiv_version","alias_value":"1107.3427v2","created_at":"2026-05-18T02:01:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.3427","created_at":"2026-05-18T02:01:15Z"},{"alias_kind":"pith_short_12","alias_value":"CUURB2UKZILL","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"CUURB2UKZILLOB2D","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"CUURB2UK","created_at":"2026-05-18T12:26:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:CUURB2UKZILLOB2DY5RDNQG6HI","target":"record","payload":{"canonical_record":{"source":{"id":"1107.3427","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-18T13:20:13Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"2b9fc19da76f1c3ecca62356ed365008b4a4cd30474aa4bf43b4fda115d8560a","abstract_canon_sha256":"de1edd2bd0dcf985ae1c95b089bbf3005fd7f639502c71d25a59189cf47111f1"},"schema_version":"1.0"},"canonical_sha256":"152910ea8aca16b70743c76236c0de3a15074801f3aa58a60936fcd4ae7fa4ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:15.557052Z","signature_b64":"7jO91zW4FafJVOBAwEL3l8sZlIyJ4TlNLAD29hQlpwJP4qpbC4SxMQj7fvWucmVaWT3UIv+ms9cdjcVsM4/BAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"152910ea8aca16b70743c76236c0de3a15074801f3aa58a60936fcd4ae7fa4ca","last_reissued_at":"2026-05-18T02:01:15.556462Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:15.556462Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.3427","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":"2026-05-18T02:01:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ccy9m81maLyESeigIkWA9Ksxqy9kwhZ7YRaU46TeZschwk3j/4iOfO3/bFX1dGtSMInJaqmMyAoXb4h+11ZYAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T11:53:15.380144Z"},"content_sha256":"5ebfe1bed2af15f87ac0281a073089d596f8aa94f57f9b105cb1131d84429f38","schema_version":"1.0","event_id":"sha256:5ebfe1bed2af15f87ac0281a073089d596f8aa94f57f9b105cb1131d84429f38"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:CUURB2UKZILLOB2DY5RDNQG6HI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of probe displacement to the thermal resolution limit in photonic force microscopy using a miniature quadrant photodetector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.ins-det","authors_text":"Arijit Haldar, Ayan Banerjee, Basudev Roy, Sambit Bikas Pal","submitted_at":"2011-07-18T13:20:13Z","abstract_excerpt":"A photonic force microscope comprises of an optically trapped micro-probe and a position detection system to track the motion of the probe. Signal collection for motion detection is often carried out using the backscattered light off the probe - however, this mode has problems of low S/N due to the small back-scattering cross-sections of the micro-probes typically used. The position sensors often used in these cases are quadrant photodetectors. To ensure maximum sensitivity of such detectors, it would help if the detector size matched with the detection beam radius after the condenser lens (wh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.3427","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":"2026-05-18T02:01:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"efzJvvUp/dmQvXzBrbc8eNPNCFSCyFHB3cczHehaeUf9J248ire3+WIwsCl80wV0s4wYx7ZxmPhc/2ViDoD3Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T11:53:15.380511Z"},"content_sha256":"24e0ba6685a1d7ddd96aee85b05effc9031fbcb8d12e45dbc05c3b47c6342af7","schema_version":"1.0","event_id":"sha256:24e0ba6685a1d7ddd96aee85b05effc9031fbcb8d12e45dbc05c3b47c6342af7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CUURB2UKZILLOB2DY5RDNQG6HI/bundle.json","state_url":"https://pith.science/pith/CUURB2UKZILLOB2DY5RDNQG6HI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CUURB2UKZILLOB2DY5RDNQG6HI/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":"2026-06-11T11:53:15Z","links":{"resolver":"https://pith.science/pith/CUURB2UKZILLOB2DY5RDNQG6HI","bundle":"https://pith.science/pith/CUURB2UKZILLOB2DY5RDNQG6HI/bundle.json","state":"https://pith.science/pith/CUURB2UKZILLOB2DY5RDNQG6HI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CUURB2UKZILLOB2DY5RDNQG6HI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:CUURB2UKZILLOB2DY5RDNQG6HI","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":"de1edd2bd0dcf985ae1c95b089bbf3005fd7f639502c71d25a59189cf47111f1","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-18T13:20:13Z","title_canon_sha256":"2b9fc19da76f1c3ecca62356ed365008b4a4cd30474aa4bf43b4fda115d8560a"},"schema_version":"1.0","source":{"id":"1107.3427","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.3427","created_at":"2026-05-18T02:01:15Z"},{"alias_kind":"arxiv_version","alias_value":"1107.3427v2","created_at":"2026-05-18T02:01:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.3427","created_at":"2026-05-18T02:01:15Z"},{"alias_kind":"pith_short_12","alias_value":"CUURB2UKZILL","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"CUURB2UKZILLOB2D","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"CUURB2UK","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:24e0ba6685a1d7ddd96aee85b05effc9031fbcb8d12e45dbc05c3b47c6342af7","target":"graph","created_at":"2026-05-18T02:01:15Z","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":"A photonic force microscope comprises of an optically trapped micro-probe and a position detection system to track the motion of the probe. Signal collection for motion detection is often carried out using the backscattered light off the probe - however, this mode has problems of low S/N due to the small back-scattering cross-sections of the micro-probes typically used. The position sensors often used in these cases are quadrant photodetectors. To ensure maximum sensitivity of such detectors, it would help if the detector size matched with the detection beam radius after the condenser lens (wh","authors_text":"Arijit Haldar, Ayan Banerjee, Basudev Roy, Sambit Bikas Pal","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-18T13:20:13Z","title":"Measurement of probe displacement to the thermal resolution limit in photonic force microscopy using a miniature quadrant photodetector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.3427","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":"sha256:5ebfe1bed2af15f87ac0281a073089d596f8aa94f57f9b105cb1131d84429f38","target":"record","created_at":"2026-05-18T02:01:15Z","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":"de1edd2bd0dcf985ae1c95b089bbf3005fd7f639502c71d25a59189cf47111f1","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2011-07-18T13:20:13Z","title_canon_sha256":"2b9fc19da76f1c3ecca62356ed365008b4a4cd30474aa4bf43b4fda115d8560a"},"schema_version":"1.0","source":{"id":"1107.3427","kind":"arxiv","version":2}},"canonical_sha256":"152910ea8aca16b70743c76236c0de3a15074801f3aa58a60936fcd4ae7fa4ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"152910ea8aca16b70743c76236c0de3a15074801f3aa58a60936fcd4ae7fa4ca","first_computed_at":"2026-05-18T02:01:15.556462Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:15.556462Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7jO91zW4FafJVOBAwEL3l8sZlIyJ4TlNLAD29hQlpwJP4qpbC4SxMQj7fvWucmVaWT3UIv+ms9cdjcVsM4/BAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:15.557052Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.3427","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ebfe1bed2af15f87ac0281a073089d596f8aa94f57f9b105cb1131d84429f38","sha256:24e0ba6685a1d7ddd96aee85b05effc9031fbcb8d12e45dbc05c3b47c6342af7"],"state_sha256":"593953d3ee2adff9b4b39c33f42458d75acbe433b24ea9540405fe3b4ae50ffd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZtxAUywAbuHFaLFLPL1XZXfFMUqtqIXYd8emZqg/m+lvIMIupI9P6sKFu/ppU4Zt8my9FEhimDzWRPq43XM2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T11:53:15.382488Z","bundle_sha256":"847106504d440c0eacc3da94f8268307078665513d5529ca0fef1c9a99e2dbde"}}