{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:NPP2NECVN4HBASTDFDBN3CAB6P","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":"f1664e0c4980f004f5dd483d7b6ba992fe0bb0e832f7627ca4c61916cee8d3cc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-02-12T02:45:19Z","title_canon_sha256":"309446ac344ddd4f0e02e753ed60a285c843a736e24efcd5cbf3121a06bae7d5"},"schema_version":"1.0","source":{"id":"1602.03949","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.03949","created_at":"2026-05-18T01:20:16Z"},{"alias_kind":"arxiv_version","alias_value":"1602.03949v3","created_at":"2026-05-18T01:20:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03949","created_at":"2026-05-18T01:20:16Z"},{"alias_kind":"pith_short_12","alias_value":"NPP2NECVN4HB","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"NPP2NECVN4HBASTD","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"NPP2NECV","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:daec7393809588554fbcdc1d89ed71a974af86a75301b38348063096e4ee6474","target":"graph","created_at":"2026-05-18T01:20:16Z","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":"In ghost imaging with narrow-band signal in thermal light background, signal arm filters bring higher value and upper limit of signal-to-noise ratio (SNR), and faster speed to reach that limit. The narrower bandwidth, the better.","authors_text":"Bin Luo, Dongyue Yang, Guohua Wu, Hong Guo, Junhui Li, Longfei Yin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-02-12T02:45:19Z","title":"The role of narrowband filtering in improving signal-to-noise ratio of ghost imaging with thermal light background"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03949","kind":"arxiv","version":3},"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":"sha256:33f7de340aec32feea9f45844752f3605e71491c147796904f06ca2e08b92dd0","target":"record","created_at":"2026-05-18T01:20:16Z","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":"f1664e0c4980f004f5dd483d7b6ba992fe0bb0e832f7627ca4c61916cee8d3cc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-02-12T02:45:19Z","title_canon_sha256":"309446ac344ddd4f0e02e753ed60a285c843a736e24efcd5cbf3121a06bae7d5"},"schema_version":"1.0","source":{"id":"1602.03949","kind":"arxiv","version":3}},"canonical_sha256":"6bdfa690556f0e104a6328c2dd8801f3e19454039f03fae572bed06f7f84b33d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6bdfa690556f0e104a6328c2dd8801f3e19454039f03fae572bed06f7f84b33d","first_computed_at":"2026-05-18T01:20:16.149178Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:16.149178Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PTkV2q898BNBtf5dJDEJVqr8EZn722tRZSPe/kR7LUqql0ct5TBk3T6f+zIQTv2nFhgQap3a6A0nGg20dOsCCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:16.149892Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.03949","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33f7de340aec32feea9f45844752f3605e71491c147796904f06ca2e08b92dd0","sha256:daec7393809588554fbcdc1d89ed71a974af86a75301b38348063096e4ee6474"],"state_sha256":"183358df94d2226a7abfa8cf3c17d7cbbda9d0810030acb8ae0c7ff87f54bd01"}