{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:652H52FB2QWUTEUCN5NKDQ4GPC","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"35ab79755c461575dec69b38bab8d29987547c93dd02dd64836f4fe11e9b4780","cross_cats_sorted":["cond-mat.quant-gas","cond-mat.stat-mech","cond-mat.str-el","hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-20T20:05:01Z","title_canon_sha256":"a0fdac01bb0ab563487db05fe6db13680347cc6f16084fffa0618fa8c7db80e8"},"schema_version":"1.0","source":{"id":"2605.21702","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21702","created_at":"2026-05-22T01:03:28Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21702v1","created_at":"2026-05-22T01:03:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21702","created_at":"2026-05-22T01:03:28Z"},{"alias_kind":"pith_short_12","alias_value":"652H52FB2QWU","created_at":"2026-05-22T01:03:28Z"},{"alias_kind":"pith_short_16","alias_value":"652H52FB2QWUTEUC","created_at":"2026-05-22T01:03:28Z"},{"alias_kind":"pith_short_8","alias_value":"652H52FB","created_at":"2026-05-22T01:03:28Z"}],"graph_snapshots":[{"event_id":"sha256:3fcda55f8bccb2c760954f9690972b87b14eb1db26a4658fae84b68d8d50799f","target":"graph","created_at":"2026-05-22T01:03:28Z","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/2605.21702/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a review on quantum metrology and sensing, from its foundations to current applications. Highlights of the review include consideration of both frequentist and Bayesian approaches to parameter estimation; single as well as multiparameter estimation; estimation for different encoding processes comprising unitary as well as noisy channels, quantum thermometry, and channels involving indefinite causal order; different estimation strategies incorporating also recent advances like quantum error correction-aided methods and reservoir engineering; usefulness of quantum Fisher information t","authors_text":"Aditi Sen De, Debraj Rakshit, Priya Ghosh, Tanoy Kanti Konar, Ujjwal Sen","cross_cats":["cond-mat.quant-gas","cond-mat.stat-mech","cond-mat.str-el","hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-20T20:05:01Z","title":"Journey in quantum metrology and sensing from foundations to applications: a review"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21702","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:e4d7bf8c66b41e7226c17bc2effa3b6343ebc057aa29d08a4ad1ef14a435f58a","target":"record","created_at":"2026-05-22T01:03:28Z","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":"35ab79755c461575dec69b38bab8d29987547c93dd02dd64836f4fe11e9b4780","cross_cats_sorted":["cond-mat.quant-gas","cond-mat.stat-mech","cond-mat.str-el","hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-20T20:05:01Z","title_canon_sha256":"a0fdac01bb0ab563487db05fe6db13680347cc6f16084fffa0618fa8c7db80e8"},"schema_version":"1.0","source":{"id":"2605.21702","kind":"arxiv","version":1}},"canonical_sha256":"f7747ee8a1d42d4992826f5aa1c38678895c01e05f1b6ce47498276ce12ee53b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7747ee8a1d42d4992826f5aa1c38678895c01e05f1b6ce47498276ce12ee53b","first_computed_at":"2026-05-22T01:03:28.665391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:03:28.665391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7sc3yVuP/BS5Bf0GDlYRx4eLzcBczQixiBUZAnHNsRbJtLmgTFUJzdoAPAMEN72b1urFaGnUV+Ij5c1DAQZ+BA==","signature_status":"signed_v1","signed_at":"2026-05-22T01:03:28.665814Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.21702","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e4d7bf8c66b41e7226c17bc2effa3b6343ebc057aa29d08a4ad1ef14a435f58a","sha256:3fcda55f8bccb2c760954f9690972b87b14eb1db26a4658fae84b68d8d50799f","sha256:fe70119e6151bf44260483cc802f381376799a1bb096783039890bb039d11db7"],"state_sha256":"98fd205d8d6dfbdede426f3698eea807e7ac86098d231b5c5cb53c273ededa04"}