{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:PGA4PGL46RZJUDC3ZZHX5NB6K5","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":"5d4856dfd8f363f51c47c7b5b6a3c7b2082c020893abcd3590595e5cd06b2ce0","cross_cats_sorted":["physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-01-23T12:40:33Z","title_canon_sha256":"7b5664146b71129dcaa9938d268e61cf1577269180946cb7c5da4e5b9b5def72"},"schema_version":"1.0","source":{"id":"1701.06358","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.06358","created_at":"2026-05-18T00:52:18Z"},{"alias_kind":"arxiv_version","alias_value":"1701.06358v1","created_at":"2026-05-18T00:52:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.06358","created_at":"2026-05-18T00:52:18Z"},{"alias_kind":"pith_short_12","alias_value":"PGA4PGL46RZJ","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"PGA4PGL46RZJUDC3","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"PGA4PGL4","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:5e715935a30fba268a67b8431115c01d8050ebf857613161b9e98c936d7428a5","target":"graph","created_at":"2026-05-18T00:52:18Z","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":"We introduce the concept of saturated absorption competition (SAC) microscopy as a means of providing sub-diffraction spatial resolution in fluorescence imaging. Unlike the post-competition process between stimulated and spontaneous emission that is used in stimulated emission depletion (STED) microscopy, SAC microscopy breaks the diffraction limit by emphasizing a pre-competition process that occurs in the fluorescence absorption stage in a manner that shares similarities with ground-state depletion (GSD) microscopy. Moreover, unlike both STED and GSD microscopy, SAC microscopy offers a reduc","authors_text":"Cheng Zheng, Cuifang Kuang, Guangyuan Zhao, Kimani C. Toussaint Jr., Mohammad M Kabir, Xu Liu, Zhongzhi Yu","cross_cats":["physics.bio-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-01-23T12:40:33Z","title":"Saturated absorption competition microscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.06358","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":"sha256:42b2d7bad1c3b0da2bbcebec352cbbdb8773608b782fa92231abc2ffdcc47f2b","target":"record","created_at":"2026-05-18T00:52:18Z","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":"5d4856dfd8f363f51c47c7b5b6a3c7b2082c020893abcd3590595e5cd06b2ce0","cross_cats_sorted":["physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-01-23T12:40:33Z","title_canon_sha256":"7b5664146b71129dcaa9938d268e61cf1577269180946cb7c5da4e5b9b5def72"},"schema_version":"1.0","source":{"id":"1701.06358","kind":"arxiv","version":1}},"canonical_sha256":"7981c7997cf4729a0c5bce4f7eb43e575ceda46183b35412b9ab60f96b819ea1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7981c7997cf4729a0c5bce4f7eb43e575ceda46183b35412b9ab60f96b819ea1","first_computed_at":"2026-05-18T00:52:18.629652Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:18.629652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ir1OjqPpLXSoN8EzUXcivcOVwoV2wyDJUZlxwxUDGKtlODJwRqO2p14XyRz+YWlK8cLZFx0sZvL/eWwTHyG2Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:18.630265Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.06358","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:42b2d7bad1c3b0da2bbcebec352cbbdb8773608b782fa92231abc2ffdcc47f2b","sha256:5e715935a30fba268a67b8431115c01d8050ebf857613161b9e98c936d7428a5"],"state_sha256":"8ebd3cb392978d1ab7fb415daaf3bb34db3a5c192083a0f9778e7a7034dd1d14"}