{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:Y6RQSOB6Q2JDNPP6PNFM74WLD5","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":"22e0ba94bac1a0a5c012e2ab2329f47d485e13afe67c9cb610a7ffaeff019870","cross_cats_sorted":["math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2014-04-29T22:31:21Z","title_canon_sha256":"df8dc0c962a1373e6e527b33138cb0abb55628e0c63d5b53c98346046dffb595"},"schema_version":"1.0","source":{"id":"1404.7550","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.7550","created_at":"2026-05-18T02:52:55Z"},{"alias_kind":"arxiv_version","alias_value":"1404.7550v1","created_at":"2026-05-18T02:52:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.7550","created_at":"2026-05-18T02:52:55Z"},{"alias_kind":"pith_short_12","alias_value":"Y6RQSOB6Q2JD","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"Y6RQSOB6Q2JDNPP6","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"Y6RQSOB6","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:d96e46b013d7bc2d735110613ce5c1616815eb0a84ed77250f4c9203e9f48802","target":"graph","created_at":"2026-05-18T02:52:55Z","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":"The Synchrosqueezing transform is a time-frequency analysis method that can decompose complex signals into time-varying oscillatory components. It is a form of time-frequency reassignment that is both sparse and invertible, allowing for the recovery of the signal. This article presents an overview of the theory and stability properties of Synchrosqueezing, as well as applications of the technique to topics in cardiology, climate science and economics.","authors_text":"Gaurav Thakur","cross_cats":["math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2014-04-29T22:31:21Z","title":"The Synchrosqueezing transform for instantaneous spectral analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.7550","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":"sha256:40dde12d5da061e53242f69419c2e2ce58bc86554483ae4a1723af8ca8874cd6","target":"record","created_at":"2026-05-18T02:52:55Z","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":"22e0ba94bac1a0a5c012e2ab2329f47d485e13afe67c9cb610a7ffaeff019870","cross_cats_sorted":["math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2014-04-29T22:31:21Z","title_canon_sha256":"df8dc0c962a1373e6e527b33138cb0abb55628e0c63d5b53c98346046dffb595"},"schema_version":"1.0","source":{"id":"1404.7550","kind":"arxiv","version":1}},"canonical_sha256":"c7a309383e869236bdfe7b4acff2cb1f7f0d98169bd8301406164e7af1023264","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7a309383e869236bdfe7b4acff2cb1f7f0d98169bd8301406164e7af1023264","first_computed_at":"2026-05-18T02:52:55.405925Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:55.405925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rHAwY1CTHpmwgo29CHdxOpSbD/SJqRadXA1EP5LinJ6FO0AtP7yGGiS0p6j3WmGAQsDOXYtcewEG+94gm2n4Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:55.406468Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.7550","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40dde12d5da061e53242f69419c2e2ce58bc86554483ae4a1723af8ca8874cd6","sha256:d96e46b013d7bc2d735110613ce5c1616815eb0a84ed77250f4c9203e9f48802"],"state_sha256":"15286a4e2f6308f26744f3636bd6e6bb77633952bdabac0e1dd66fe4ebedc708"}