{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:YROAJIVWD7OHXRZUOAFGVYWQ67","short_pith_number":"pith:YROAJIVW","canonical_record":{"source":{"id":"2202.12650","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2022-02-25T12:15:46Z","cross_cats_sorted":["eess.SP"],"title_canon_sha256":"249e9572f19f55bcd96d6e804e2633e825ff86d991c968773d4dabcdaa406c7d","abstract_canon_sha256":"7282095001de83ceaac55f9989558966ba309e86dfdf3f3fad2f425ac2fc974d"},"schema_version":"1.0"},"canonical_sha256":"c45c04a2b61fdc7bc734700a6ae2d0f7d34f2519b80b9636fd388a946e7e9184","source":{"kind":"arxiv","id":"2202.12650","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.12650","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"arxiv_version","alias_value":"2202.12650v2","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.12650","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"pith_short_12","alias_value":"YROAJIVWD7OH","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"pith_short_16","alias_value":"YROAJIVWD7OHXRZU","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"pith_short_8","alias_value":"YROAJIVW","created_at":"2026-07-05T04:10:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:YROAJIVWD7OHXRZUOAFGVYWQ67","target":"record","payload":{"canonical_record":{"source":{"id":"2202.12650","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2022-02-25T12:15:46Z","cross_cats_sorted":["eess.SP"],"title_canon_sha256":"249e9572f19f55bcd96d6e804e2633e825ff86d991c968773d4dabcdaa406c7d","abstract_canon_sha256":"7282095001de83ceaac55f9989558966ba309e86dfdf3f3fad2f425ac2fc974d"},"schema_version":"1.0"},"canonical_sha256":"c45c04a2b61fdc7bc734700a6ae2d0f7d34f2519b80b9636fd388a946e7e9184","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:10:25.895438Z","signature_b64":"ToU/EdUN3JAaKj+lxXf+v67Zb1q68IDmHuG7cXGNb/QWDrkz+f9b82Zgvst1evGgt7rQXjG9Pca6+x2QBvBXDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c45c04a2b61fdc7bc734700a6ae2d0f7d34f2519b80b9636fd388a946e7e9184","last_reissued_at":"2026-07-05T04:10:25.894969Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:10:25.894969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.12650","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":"2026-07-05T04:10:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QgA5NU7s4l2zTR+hSve26rrsymO4txKmByWVnbpYNQAaYnlKmHYRjrxVvgr1ngAFYKTbwMCZlxQI9qUu31TNDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:14:49.643128Z"},"content_sha256":"7658a8a23f44b481253d042b32eaacf7efcf4502b2c15b5d2dd6c867314cca6f","schema_version":"1.0","event_id":"sha256:7658a8a23f44b481253d042b32eaacf7efcf4502b2c15b5d2dd6c867314cca6f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:YROAJIVWD7OHXRZUOAFGVYWQ67","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Time-coded Spiking Fourier Transform in Neuromorphic Hardware","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["eess.SP"],"primary_cat":"cs.NE","authors_text":"Alois Knoll, Bernhard Vogginger, Chen Liu, Christian Mayr, Hector A. Gonzalez, Javier L\\'opez-Randulfe, Negin Karimi, Nico Reeb, Robin Dietrich","submitted_at":"2022-02-25T12:15:46Z","abstract_excerpt":"After several decades of continuously optimizing computing systems, the Moore's law is reaching itsend. However, there is an increasing demand for fast and efficient processing systems that can handlelarge streams of data while decreasing system footprints. Neuromorphic computing answers thisneed by creating decentralized architectures that communicate with binary events over time. Despiteits rapid growth in the last few years, novel algorithms are needed that can leverage the potential ofthis emerging computing paradigm and can stimulate the design of advanced neuromorphic chips.In this work,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.12650","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2202.12650/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:10:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UIwg2vBg9SZF+qbjpkZi9R9QstK546Bd2cGTYtL49IjXffQdC8hOIDarAHpAfnHgFs9WDWMI+ojHvchGbtADAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:14:49.644104Z"},"content_sha256":"8393c311acf5120d0b5311bc7058d9cb3f0bfb3c3466be1afe4d32f60fe2e700","schema_version":"1.0","event_id":"sha256:8393c311acf5120d0b5311bc7058d9cb3f0bfb3c3466be1afe4d32f60fe2e700"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YROAJIVWD7OHXRZUOAFGVYWQ67/bundle.json","state_url":"https://pith.science/pith/YROAJIVWD7OHXRZUOAFGVYWQ67/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YROAJIVWD7OHXRZUOAFGVYWQ67/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":"2026-08-03T17:14:49Z","links":{"resolver":"https://pith.science/pith/YROAJIVWD7OHXRZUOAFGVYWQ67","bundle":"https://pith.science/pith/YROAJIVWD7OHXRZUOAFGVYWQ67/bundle.json","state":"https://pith.science/pith/YROAJIVWD7OHXRZUOAFGVYWQ67/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YROAJIVWD7OHXRZUOAFGVYWQ67/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:YROAJIVWD7OHXRZUOAFGVYWQ67","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":"7282095001de83ceaac55f9989558966ba309e86dfdf3f3fad2f425ac2fc974d","cross_cats_sorted":["eess.SP"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2022-02-25T12:15:46Z","title_canon_sha256":"249e9572f19f55bcd96d6e804e2633e825ff86d991c968773d4dabcdaa406c7d"},"schema_version":"1.0","source":{"id":"2202.12650","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.12650","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"arxiv_version","alias_value":"2202.12650v2","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.12650","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"pith_short_12","alias_value":"YROAJIVWD7OH","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"pith_short_16","alias_value":"YROAJIVWD7OHXRZU","created_at":"2026-07-05T04:10:25Z"},{"alias_kind":"pith_short_8","alias_value":"YROAJIVW","created_at":"2026-07-05T04:10:25Z"}],"graph_snapshots":[{"event_id":"sha256:8393c311acf5120d0b5311bc7058d9cb3f0bfb3c3466be1afe4d32f60fe2e700","target":"graph","created_at":"2026-07-05T04:10:25Z","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/2202.12650/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"After several decades of continuously optimizing computing systems, the Moore's law is reaching itsend. However, there is an increasing demand for fast and efficient processing systems that can handlelarge streams of data while decreasing system footprints. Neuromorphic computing answers thisneed by creating decentralized architectures that communicate with binary events over time. Despiteits rapid growth in the last few years, novel algorithms are needed that can leverage the potential ofthis emerging computing paradigm and can stimulate the design of advanced neuromorphic chips.In this work,","authors_text":"Alois Knoll, Bernhard Vogginger, Chen Liu, Christian Mayr, Hector A. Gonzalez, Javier L\\'opez-Randulfe, Negin Karimi, Nico Reeb, Robin Dietrich","cross_cats":["eess.SP"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2022-02-25T12:15:46Z","title":"Time-coded Spiking Fourier Transform in Neuromorphic Hardware"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.12650","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":"sha256:7658a8a23f44b481253d042b32eaacf7efcf4502b2c15b5d2dd6c867314cca6f","target":"record","created_at":"2026-07-05T04:10:25Z","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":"7282095001de83ceaac55f9989558966ba309e86dfdf3f3fad2f425ac2fc974d","cross_cats_sorted":["eess.SP"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.NE","submitted_at":"2022-02-25T12:15:46Z","title_canon_sha256":"249e9572f19f55bcd96d6e804e2633e825ff86d991c968773d4dabcdaa406c7d"},"schema_version":"1.0","source":{"id":"2202.12650","kind":"arxiv","version":2}},"canonical_sha256":"c45c04a2b61fdc7bc734700a6ae2d0f7d34f2519b80b9636fd388a946e7e9184","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c45c04a2b61fdc7bc734700a6ae2d0f7d34f2519b80b9636fd388a946e7e9184","first_computed_at":"2026-07-05T04:10:25.894969Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:10:25.894969Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ToU/EdUN3JAaKj+lxXf+v67Zb1q68IDmHuG7cXGNb/QWDrkz+f9b82Zgvst1evGgt7rQXjG9Pca6+x2QBvBXDg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:10:25.895438Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.12650","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7658a8a23f44b481253d042b32eaacf7efcf4502b2c15b5d2dd6c867314cca6f","sha256:8393c311acf5120d0b5311bc7058d9cb3f0bfb3c3466be1afe4d32f60fe2e700"],"state_sha256":"640d0fb9760b0490545f0cbc2c854326d1fffc2ff80270d69fa802f72898c1ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zPsBQZmLjKujps8C5mqd327DatPpmvUzChe+nkIduh4y4Dw8e3uHRXAtb/Fy0rVNdEPT6EGXiXtm2TBJQ4CfAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T17:14:49.651858Z","bundle_sha256":"009126d8827beaec16efd76bec38270159ec6c8fa910af9a83424962b81d345a"}}