{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JLWISQEPKVB3D7SHPMWFFAYW7W","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":"83826f87c426d797101990b44747ed96732f55879d4a098bd5af502a06ef75fb","cross_cats_sorted":["cs.AR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2017-02-10T16:38:17Z","title_canon_sha256":"1f711e65aae4a5d60f1bc55a14e24108a9c14bf498fa8741985088b005373c15"},"schema_version":"1.0","source":{"id":"1703.00073","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.00073","created_at":"2026-05-18T00:41:51Z"},{"alias_kind":"arxiv_version","alias_value":"1703.00073v1","created_at":"2026-05-18T00:41:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.00073","created_at":"2026-05-18T00:41:51Z"},{"alias_kind":"pith_short_12","alias_value":"JLWISQEPKVB3","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JLWISQEPKVB3D7SH","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JLWISQEP","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:3db0ef40f2cc92c4271ca6bdd343443f5870993d6436ec953fc6a7e103e07bc4","target":"graph","created_at":"2026-05-18T00:41:51Z","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":"A silicon physically unclonable function (PUF) using ring oscillators (ROs) has the advantage of easy application in both an application specific integrated circuit (ASIC) and a field-programmable gate array (FPGA). Here, we provide a RO-PUF using the initial waveform of the ROs based on 65 nm CMOS technology. Compared with the conventional RO-PUF, the number of ROs is greatly reduced and the time needed to generate an ID is within a couple of system clocks.","authors_text":"Hirotsugu Kasho, Nobuaki Sakamoto, Satoshi Takaya, Shinichi Yasuda, Shinobu Fujita, Takao Marukame, Tetsufumi Tanamoto, Yuichiro Mitani","cross_cats":["cs.AR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2017-02-10T16:38:17Z","title":"Physically unclonable function using initial waveform of ring oscillators on 65 nm CMOS technology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.00073","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:cde7ce52428e3c58d8079875cd322f20c0a4029e69addfde52fd80b6371ffff3","target":"record","created_at":"2026-05-18T00:41:51Z","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":"83826f87c426d797101990b44747ed96732f55879d4a098bd5af502a06ef75fb","cross_cats_sorted":["cs.AR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2017-02-10T16:38:17Z","title_canon_sha256":"1f711e65aae4a5d60f1bc55a14e24108a9c14bf498fa8741985088b005373c15"},"schema_version":"1.0","source":{"id":"1703.00073","kind":"arxiv","version":1}},"canonical_sha256":"4aec89408f5543b1fe477b2c528316fda53396d50c05f18668871fc2eeee95be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4aec89408f5543b1fe477b2c528316fda53396d50c05f18668871fc2eeee95be","first_computed_at":"2026-05-18T00:41:51.032964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:51.032964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FO2ZWY/tzWK2nHtmYRsaNtGIzSecuEtF7mnQRRyBbN/4Ey4YAKl1x5jes0dAr5IcN5Y4of8qfjRFRhHFQc9NCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:51.033467Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.00073","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cde7ce52428e3c58d8079875cd322f20c0a4029e69addfde52fd80b6371ffff3","sha256:3db0ef40f2cc92c4271ca6bdd343443f5870993d6436ec953fc6a7e103e07bc4"],"state_sha256":"a631d9ab196ecd640d16004d65b15a77c6b6382ae4da2edafada7de49103d5e6"}