{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KHNPAUCCIFMIH3HZEWCOU4URCY","short_pith_number":"pith:KHNPAUCC","canonical_record":{"source":{"id":"1308.1777","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-08-08T07:42:27Z","cross_cats_sorted":["physics.bio-ph","physics.ins-det","quant-ph"],"title_canon_sha256":"073c06e91df381e32a1e6b6a5cb0a2f8ed9e7ee83a7338c6ff1913258d4fbcad","abstract_canon_sha256":"c64063a5903731eb387fa3b2471d34db2a0d19908b5b77575d30e8382e1eaf4b"},"schema_version":"1.0"},"canonical_sha256":"51daf05042415883ecf92584ea729116326c7e0c743299ce2aadb33797a9eb38","source":{"kind":"arxiv","id":"1308.1777","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.1777","created_at":"2026-05-18T03:16:27Z"},{"alias_kind":"arxiv_version","alias_value":"1308.1777v1","created_at":"2026-05-18T03:16:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.1777","created_at":"2026-05-18T03:16:27Z"},{"alias_kind":"pith_short_12","alias_value":"KHNPAUCCIFMI","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KHNPAUCCIFMIH3HZ","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KHNPAUCC","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KHNPAUCCIFMIH3HZEWCOU4URCY","target":"record","payload":{"canonical_record":{"source":{"id":"1308.1777","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-08-08T07:42:27Z","cross_cats_sorted":["physics.bio-ph","physics.ins-det","quant-ph"],"title_canon_sha256":"073c06e91df381e32a1e6b6a5cb0a2f8ed9e7ee83a7338c6ff1913258d4fbcad","abstract_canon_sha256":"c64063a5903731eb387fa3b2471d34db2a0d19908b5b77575d30e8382e1eaf4b"},"schema_version":"1.0"},"canonical_sha256":"51daf05042415883ecf92584ea729116326c7e0c743299ce2aadb33797a9eb38","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:27.682610Z","signature_b64":"N8WEVR4nhKX4iiP1PCNTkzOCgRddt2gwZS8AOizH5Uth9V9Ol1Tu+Jg5WITjRZYvSTH4iOfnq+OsXGUKcq4CDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"51daf05042415883ecf92584ea729116326c7e0c743299ce2aadb33797a9eb38","last_reissued_at":"2026-05-18T03:16:27.681741Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:27.681741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.1777","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":"2026-05-18T03:16:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ur2jk/hVZoBOJZV7Ge+qbcloHgTRjPF76vdysiiAXKaI2ncHYeKOiIdZPIh50KdDLx1ASQMewZm0MRweNPxrCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T10:13:17.505584Z"},"content_sha256":"fe00dedebaa645ce946226203622f2a345a48a41aae5d4c184983d5cf7a5520a","schema_version":"1.0","event_id":"sha256:fe00dedebaa645ce946226203622f2a345a48a41aae5d4c184983d5cf7a5520a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KHNPAUCCIFMIH3HZEWCOU4URCY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Back-scatter based whispering gallery mode sensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph","physics.ins-det","quant-ph"],"primary_cat":"physics.optics","authors_text":"David L. McAuslan, George A. Brawley, Joachim Knittel, Jon D. Swaim, Warwick P. Bowen","submitted_at":"2013-08-08T07:42:27Z","abstract_excerpt":"Whispering gallery mode biosensors allow selective unlabelled detection of single proteins and, combined with quantum limited sensitivity, the possibility for noninvasive realtime observation of motor molecule motion. However, to date technical noise sources, most particularly low frequency laser noise, have constrained such applications. Here we introduce a new technique for whispering gallery mode sensing based on direct detection of back-scattered light. This experimentally straightforward technique is immune to frequency noise in principle, and further, acts to suppress thermorefractive no"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.1777","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":"2026-05-18T03:16:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G9x9QHoolLROAf+szu/olDgJ3rYGL++p/aH8uCzbPWJI8PK+5MUVseAdbDEoT95I1hdBS745wY8G28z/TPiTAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T10:13:17.505937Z"},"content_sha256":"5a5c003e25b43676926d88d55db5f32ee01f236418afb1a1a7ec048836e74228","schema_version":"1.0","event_id":"sha256:5a5c003e25b43676926d88d55db5f32ee01f236418afb1a1a7ec048836e74228"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KHNPAUCCIFMIH3HZEWCOU4URCY/bundle.json","state_url":"https://pith.science/pith/KHNPAUCCIFMIH3HZEWCOU4URCY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KHNPAUCCIFMIH3HZEWCOU4URCY/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":"2026-06-03T10:13:17Z","links":{"resolver":"https://pith.science/pith/KHNPAUCCIFMIH3HZEWCOU4URCY","bundle":"https://pith.science/pith/KHNPAUCCIFMIH3HZEWCOU4URCY/bundle.json","state":"https://pith.science/pith/KHNPAUCCIFMIH3HZEWCOU4URCY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KHNPAUCCIFMIH3HZEWCOU4URCY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KHNPAUCCIFMIH3HZEWCOU4URCY","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":"c64063a5903731eb387fa3b2471d34db2a0d19908b5b77575d30e8382e1eaf4b","cross_cats_sorted":["physics.bio-ph","physics.ins-det","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-08-08T07:42:27Z","title_canon_sha256":"073c06e91df381e32a1e6b6a5cb0a2f8ed9e7ee83a7338c6ff1913258d4fbcad"},"schema_version":"1.0","source":{"id":"1308.1777","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.1777","created_at":"2026-05-18T03:16:27Z"},{"alias_kind":"arxiv_version","alias_value":"1308.1777v1","created_at":"2026-05-18T03:16:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.1777","created_at":"2026-05-18T03:16:27Z"},{"alias_kind":"pith_short_12","alias_value":"KHNPAUCCIFMI","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KHNPAUCCIFMIH3HZ","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KHNPAUCC","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:5a5c003e25b43676926d88d55db5f32ee01f236418afb1a1a7ec048836e74228","target":"graph","created_at":"2026-05-18T03:16:27Z","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":"Whispering gallery mode biosensors allow selective unlabelled detection of single proteins and, combined with quantum limited sensitivity, the possibility for noninvasive realtime observation of motor molecule motion. However, to date technical noise sources, most particularly low frequency laser noise, have constrained such applications. Here we introduce a new technique for whispering gallery mode sensing based on direct detection of back-scattered light. This experimentally straightforward technique is immune to frequency noise in principle, and further, acts to suppress thermorefractive no","authors_text":"David L. McAuslan, George A. Brawley, Joachim Knittel, Jon D. Swaim, Warwick P. Bowen","cross_cats":["physics.bio-ph","physics.ins-det","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-08-08T07:42:27Z","title":"Back-scatter based whispering gallery mode sensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.1777","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:fe00dedebaa645ce946226203622f2a345a48a41aae5d4c184983d5cf7a5520a","target":"record","created_at":"2026-05-18T03:16:27Z","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":"c64063a5903731eb387fa3b2471d34db2a0d19908b5b77575d30e8382e1eaf4b","cross_cats_sorted":["physics.bio-ph","physics.ins-det","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-08-08T07:42:27Z","title_canon_sha256":"073c06e91df381e32a1e6b6a5cb0a2f8ed9e7ee83a7338c6ff1913258d4fbcad"},"schema_version":"1.0","source":{"id":"1308.1777","kind":"arxiv","version":1}},"canonical_sha256":"51daf05042415883ecf92584ea729116326c7e0c743299ce2aadb33797a9eb38","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51daf05042415883ecf92584ea729116326c7e0c743299ce2aadb33797a9eb38","first_computed_at":"2026-05-18T03:16:27.681741Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:27.681741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N8WEVR4nhKX4iiP1PCNTkzOCgRddt2gwZS8AOizH5Uth9V9Ol1Tu+Jg5WITjRZYvSTH4iOfnq+OsXGUKcq4CDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:27.682610Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.1777","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe00dedebaa645ce946226203622f2a345a48a41aae5d4c184983d5cf7a5520a","sha256:5a5c003e25b43676926d88d55db5f32ee01f236418afb1a1a7ec048836e74228"],"state_sha256":"e2bc8a1379685dfc2b5f7ea59a799ea72de8e037ce06cab2c5140b71edcb6050"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/D/8qPTWfjIIFGjD7qv1e3eQy/fjaxn9avquSs9x6HZbclEifPWjGWmGCbew1jGpyR7BuBb/GKB+rds8K1FsAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T10:13:17.507899Z","bundle_sha256":"69a0a22fce82a35cfdd5e0ff7f069dab4141534e68e0f149edab06249d94a1c3"}}