{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:2JOYQWBEGFMJAFQHWKCCOT4O37","short_pith_number":"pith:2JOYQWBE","canonical_record":{"source":{"id":"1611.04222","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2016-11-14T01:51:42Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"cc185675225c78f5b1379887fa5ee8e34123b2216ccef5b362ce23c9516913f1","abstract_canon_sha256":"f42875174003fa3ddd7242a6609df5e80a1d1015dc4ab60848cedfcfc72bbd50"},"schema_version":"1.0"},"canonical_sha256":"d25d8858243158901607b284274f8edfdf98658903bb6eb51a02c7796425acc0","source":{"kind":"arxiv","id":"1611.04222","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.04222","created_at":"2026-05-18T00:49:37Z"},{"alias_kind":"arxiv_version","alias_value":"1611.04222v2","created_at":"2026-05-18T00:49:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.04222","created_at":"2026-05-18T00:49:37Z"},{"alias_kind":"pith_short_12","alias_value":"2JOYQWBEGFMJ","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2JOYQWBEGFMJAFQH","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2JOYQWBE","created_at":"2026-05-18T12:29:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:2JOYQWBEGFMJAFQHWKCCOT4O37","target":"record","payload":{"canonical_record":{"source":{"id":"1611.04222","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2016-11-14T01:51:42Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"cc185675225c78f5b1379887fa5ee8e34123b2216ccef5b362ce23c9516913f1","abstract_canon_sha256":"f42875174003fa3ddd7242a6609df5e80a1d1015dc4ab60848cedfcfc72bbd50"},"schema_version":"1.0"},"canonical_sha256":"d25d8858243158901607b284274f8edfdf98658903bb6eb51a02c7796425acc0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:37.763495Z","signature_b64":"XUILMBMg+MA5ncWgIwG6R2Y7w7AygfIc9EwCsFibJplmQrSOgbj1XkoRXzvoJ99N04YZG57Uokl7oJpb+xkmCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d25d8858243158901607b284274f8edfdf98658903bb6eb51a02c7796425acc0","last_reissued_at":"2026-05-18T00:49:37.762928Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:37.762928Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.04222","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":"2026-05-18T00:49:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FHFTvPuaAoGBJrTVZYTfm5UjhuD3C0/wi1jvzasr+UhwDEX5oMMs+gOrfan16wKr+ALiGn09Jqo1xTDdESlHCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:40:19.751990Z"},"content_sha256":"9b532e0d90a47ed08c0fdef24c16a7fc9294c61db7f48a1751e293f2dfa3b5a1","schema_version":"1.0","event_id":"sha256:9b532e0d90a47ed08c0fdef24c16a7fc9294c61db7f48a1751e293f2dfa3b5a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:2JOYQWBEGFMJAFQHWKCCOT4O37","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adaptive Depth Imaging with Single-Photon Detectors","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.optics","authors_text":"Beibei Zhou, Guohua Gu, Jie Lin, Ping Zhang, Qian Chen, Shanshan Shen, Weiji He, Zhenchao Feng","submitted_at":"2016-11-14T01:51:42Z","abstract_excerpt":"For active optical imaging, the use of single-photon detectors can greatly improve the detection sensitivity of the system. However, the traditional maximum-likelihood based imaging method needs a long acquisition time to capture clear three-dimensional (3D) image in low light-level. To tackle this problem, we present a novel imaging method for depth estimate, which can obtain the accurate 3D image in a short acquisition time. Our method combines the photon-count statistics with the temporal correlations of the reflected signal. According to the characteristics of the target surface, including"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.04222","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":"2026-05-18T00:49:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IRRGNTyUXmmzAykenjaWofElAfBGAj/3ckuZQtPu8zt3J6ePqxxlnL+7zAE6mD0urhWyVnc3dV/wUAMA4J45CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:40:19.752600Z"},"content_sha256":"5910485b9f6739c5d14b16f3a119d0691dba704275a6ae55d85b9b063d285f2c","schema_version":"1.0","event_id":"sha256:5910485b9f6739c5d14b16f3a119d0691dba704275a6ae55d85b9b063d285f2c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2JOYQWBEGFMJAFQHWKCCOT4O37/bundle.json","state_url":"https://pith.science/pith/2JOYQWBEGFMJAFQHWKCCOT4O37/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2JOYQWBEGFMJAFQHWKCCOT4O37/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":"2026-05-31T15:40:19Z","links":{"resolver":"https://pith.science/pith/2JOYQWBEGFMJAFQHWKCCOT4O37","bundle":"https://pith.science/pith/2JOYQWBEGFMJAFQHWKCCOT4O37/bundle.json","state":"https://pith.science/pith/2JOYQWBEGFMJAFQHWKCCOT4O37/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2JOYQWBEGFMJAFQHWKCCOT4O37/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:2JOYQWBEGFMJAFQHWKCCOT4O37","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":"f42875174003fa3ddd7242a6609df5e80a1d1015dc4ab60848cedfcfc72bbd50","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2016-11-14T01:51:42Z","title_canon_sha256":"cc185675225c78f5b1379887fa5ee8e34123b2216ccef5b362ce23c9516913f1"},"schema_version":"1.0","source":{"id":"1611.04222","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.04222","created_at":"2026-05-18T00:49:37Z"},{"alias_kind":"arxiv_version","alias_value":"1611.04222v2","created_at":"2026-05-18T00:49:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.04222","created_at":"2026-05-18T00:49:37Z"},{"alias_kind":"pith_short_12","alias_value":"2JOYQWBEGFMJ","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2JOYQWBEGFMJAFQH","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2JOYQWBE","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:5910485b9f6739c5d14b16f3a119d0691dba704275a6ae55d85b9b063d285f2c","target":"graph","created_at":"2026-05-18T00:49:37Z","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":"For active optical imaging, the use of single-photon detectors can greatly improve the detection sensitivity of the system. However, the traditional maximum-likelihood based imaging method needs a long acquisition time to capture clear three-dimensional (3D) image in low light-level. To tackle this problem, we present a novel imaging method for depth estimate, which can obtain the accurate 3D image in a short acquisition time. Our method combines the photon-count statistics with the temporal correlations of the reflected signal. According to the characteristics of the target surface, including","authors_text":"Beibei Zhou, Guohua Gu, Jie Lin, Ping Zhang, Qian Chen, Shanshan Shen, Weiji He, Zhenchao Feng","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2016-11-14T01:51:42Z","title":"Adaptive Depth Imaging with Single-Photon Detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.04222","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":"sha256:9b532e0d90a47ed08c0fdef24c16a7fc9294c61db7f48a1751e293f2dfa3b5a1","target":"record","created_at":"2026-05-18T00:49:37Z","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":"f42875174003fa3ddd7242a6609df5e80a1d1015dc4ab60848cedfcfc72bbd50","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2016-11-14T01:51:42Z","title_canon_sha256":"cc185675225c78f5b1379887fa5ee8e34123b2216ccef5b362ce23c9516913f1"},"schema_version":"1.0","source":{"id":"1611.04222","kind":"arxiv","version":2}},"canonical_sha256":"d25d8858243158901607b284274f8edfdf98658903bb6eb51a02c7796425acc0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d25d8858243158901607b284274f8edfdf98658903bb6eb51a02c7796425acc0","first_computed_at":"2026-05-18T00:49:37.762928Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:37.762928Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XUILMBMg+MA5ncWgIwG6R2Y7w7AygfIc9EwCsFibJplmQrSOgbj1XkoRXzvoJ99N04YZG57Uokl7oJpb+xkmCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:37.763495Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.04222","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b532e0d90a47ed08c0fdef24c16a7fc9294c61db7f48a1751e293f2dfa3b5a1","sha256:5910485b9f6739c5d14b16f3a119d0691dba704275a6ae55d85b9b063d285f2c"],"state_sha256":"57fd98c06eb6457b5cd7e7faf57895ba242b1bb5292f052ff829caed17e9efcb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hUk9Bq4UBINKiSXMCqkI3suYyDjDGNEnzK37cT66WObaK9HzhE9eQu84VR2cEQEG51aUSOzCHqo9Lhbcfnb3Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T15:40:19.756147Z","bundle_sha256":"c46c6007a4933c14a307a183ee348170ff3d1e7bc21c79cc58d25020124227d7"}}