{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:NYMND7YRBCJVBDQ4MBWJIRUAQU","short_pith_number":"pith:NYMND7YR","canonical_record":{"source":{"id":"2203.16101","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-30T07:12:43Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.optics"],"title_canon_sha256":"b930e40606fedf52a2975407f0aacc573d5ee0eab55ef6b078480a494ff3c3b4","abstract_canon_sha256":"dab44275fb88198ed6014daf00d85aca264b8bdcb6985639f5d020b22b0f5db4"},"schema_version":"1.0"},"canonical_sha256":"6e18d1ff110893508e1c606c9446808509c354271f6d5305c120ebce949181d8","source":{"kind":"arxiv","id":"2203.16101","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.16101","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"arxiv_version","alias_value":"2203.16101v2","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.16101","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"pith_short_12","alias_value":"NYMND7YRBCJV","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"pith_short_16","alias_value":"NYMND7YRBCJVBDQ4","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"pith_short_8","alias_value":"NYMND7YR","created_at":"2026-07-05T06:16:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:NYMND7YRBCJVBDQ4MBWJIRUAQU","target":"record","payload":{"canonical_record":{"source":{"id":"2203.16101","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-30T07:12:43Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.optics"],"title_canon_sha256":"b930e40606fedf52a2975407f0aacc573d5ee0eab55ef6b078480a494ff3c3b4","abstract_canon_sha256":"dab44275fb88198ed6014daf00d85aca264b8bdcb6985639f5d020b22b0f5db4"},"schema_version":"1.0"},"canonical_sha256":"6e18d1ff110893508e1c606c9446808509c354271f6d5305c120ebce949181d8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:16:59.578850Z","signature_b64":"YVV5nk2gkcDmv3w4eS+0CGsH6EEFRBt2YxsmCkGfEt1dT43zDcOsZ3U2nTJYa/LvTGoAOt5oKyYCMxDon3tpAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e18d1ff110893508e1c606c9446808509c354271f6d5305c120ebce949181d8","last_reissued_at":"2026-07-05T06:16:59.578359Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:16:59.578359Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.16101","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":"2026-07-05T06:16:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vx5NCtXaejkqiOGdAaP9sEZIWJ0ZR+19MD8O94INNXt29U+hTXva4p/TY10Gs+GR6ROTlWmhWmHk68O6zA6gAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T00:32:41.163544Z"},"content_sha256":"8134f73ba08a1c526c33025df2457ddaf8e97b0a6148322feb156cd2b2811895","schema_version":"1.0","event_id":"sha256:8134f73ba08a1c526c33025df2457ddaf8e97b0a6148322feb156cd2b2811895"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:NYMND7YRBCJVBDQ4MBWJIRUAQU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"All-optical determination of one or two emitters using quantum polarization with nitrogen-vacancy centers in diamond","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","physics.optics"],"primary_cat":"quant-ph","authors_text":"Andrew D. Greentree, Brant C. Gibson, Davin Yue Ming Peng, Josef G. Worboys, Marco Capelli, Philipp Reineck, Qiang Sun, Shinobu Onoda, Shuo Li, Takeshi Ohshima","submitted_at":"2022-03-30T07:12:43Z","abstract_excerpt":"Qubit technologies using nitrogen-vacancy color centers in diamonds require precise knowledge of the centers, including the number of emitters within a diffraction-limited spot and their orientations. However, the number of emitters is challenging to determine when there is finite background, which affects the precision of resulting quantum protocols. Here we show the photoluminescence (PL) intensity and quantum correlation (Hanbury Brown and Twiss) measurements as a function of polarization for one- and two-emitter systems. The sample was made by implanting low concentrations of adenine (C5H5"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.16101","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2203.16101/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":"2026-07-05T06:16:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NB6hVt4j+8fN3ZGcnplUycUV6CVf8yDGBeWPDqDQUloosNuwb97DkWqjMYEw+HpsK2J+k/ZfTWb1QAm6FF5nBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T00:32:41.164275Z"},"content_sha256":"5e632d2ddb084964074f7ef6c9781ebaf1a076b34500bb4213ecf7247e53d95b","schema_version":"1.0","event_id":"sha256:5e632d2ddb084964074f7ef6c9781ebaf1a076b34500bb4213ecf7247e53d95b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NYMND7YRBCJVBDQ4MBWJIRUAQU/bundle.json","state_url":"https://pith.science/pith/NYMND7YRBCJVBDQ4MBWJIRUAQU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NYMND7YRBCJVBDQ4MBWJIRUAQU/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":"2026-08-14T00:32:41Z","links":{"resolver":"https://pith.science/pith/NYMND7YRBCJVBDQ4MBWJIRUAQU","bundle":"https://pith.science/pith/NYMND7YRBCJVBDQ4MBWJIRUAQU/bundle.json","state":"https://pith.science/pith/NYMND7YRBCJVBDQ4MBWJIRUAQU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NYMND7YRBCJVBDQ4MBWJIRUAQU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:NYMND7YRBCJVBDQ4MBWJIRUAQU","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":"dab44275fb88198ed6014daf00d85aca264b8bdcb6985639f5d020b22b0f5db4","cross_cats_sorted":["cond-mat.mtrl-sci","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-30T07:12:43Z","title_canon_sha256":"b930e40606fedf52a2975407f0aacc573d5ee0eab55ef6b078480a494ff3c3b4"},"schema_version":"1.0","source":{"id":"2203.16101","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.16101","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"arxiv_version","alias_value":"2203.16101v2","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.16101","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"pith_short_12","alias_value":"NYMND7YRBCJV","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"pith_short_16","alias_value":"NYMND7YRBCJVBDQ4","created_at":"2026-07-05T06:16:59Z"},{"alias_kind":"pith_short_8","alias_value":"NYMND7YR","created_at":"2026-07-05T06:16:59Z"}],"graph_snapshots":[{"event_id":"sha256:5e632d2ddb084964074f7ef6c9781ebaf1a076b34500bb4213ecf7247e53d95b","target":"graph","created_at":"2026-07-05T06:16:59Z","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/2203.16101/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Qubit technologies using nitrogen-vacancy color centers in diamonds require precise knowledge of the centers, including the number of emitters within a diffraction-limited spot and their orientations. However, the number of emitters is challenging to determine when there is finite background, which affects the precision of resulting quantum protocols. Here we show the photoluminescence (PL) intensity and quantum correlation (Hanbury Brown and Twiss) measurements as a function of polarization for one- and two-emitter systems. The sample was made by implanting low concentrations of adenine (C5H5","authors_text":"Andrew D. Greentree, Brant C. Gibson, Davin Yue Ming Peng, Josef G. Worboys, Marco Capelli, Philipp Reineck, Qiang Sun, Shinobu Onoda, Shuo Li, Takeshi Ohshima","cross_cats":["cond-mat.mtrl-sci","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-30T07:12:43Z","title":"All-optical determination of one or two emitters using quantum polarization with nitrogen-vacancy centers in diamond"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.16101","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":"sha256:8134f73ba08a1c526c33025df2457ddaf8e97b0a6148322feb156cd2b2811895","target":"record","created_at":"2026-07-05T06:16:59Z","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":"dab44275fb88198ed6014daf00d85aca264b8bdcb6985639f5d020b22b0f5db4","cross_cats_sorted":["cond-mat.mtrl-sci","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-03-30T07:12:43Z","title_canon_sha256":"b930e40606fedf52a2975407f0aacc573d5ee0eab55ef6b078480a494ff3c3b4"},"schema_version":"1.0","source":{"id":"2203.16101","kind":"arxiv","version":2}},"canonical_sha256":"6e18d1ff110893508e1c606c9446808509c354271f6d5305c120ebce949181d8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e18d1ff110893508e1c606c9446808509c354271f6d5305c120ebce949181d8","first_computed_at":"2026-07-05T06:16:59.578359Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:16:59.578359Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YVV5nk2gkcDmv3w4eS+0CGsH6EEFRBt2YxsmCkGfEt1dT43zDcOsZ3U2nTJYa/LvTGoAOt5oKyYCMxDon3tpAw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:16:59.578850Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.16101","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8134f73ba08a1c526c33025df2457ddaf8e97b0a6148322feb156cd2b2811895","sha256:5e632d2ddb084964074f7ef6c9781ebaf1a076b34500bb4213ecf7247e53d95b"],"state_sha256":"d04fbb9fa9e392c65c552ee26dc9512f18523aa8b6dcb21600db3d9e539727ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a1B6qo19lNjkKXWBF2gRRQSmKSCgrt6dxJodHdXz1AZRQSg92Vt2KT5hkiZ13akN3ddw2xcqFgQl435gjo2VCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T00:32:41.175387Z","bundle_sha256":"efad2fdbc9721e91ba23f3f18e0e39f3f77f487106d293fc6fb617cdd6e81be9"}}