{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IZ3ZHUUYLW3JKMUZD27TVDJAKH","short_pith_number":"pith:IZ3ZHUUY","canonical_record":{"source":{"id":"1901.06733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-01-20T21:32:46Z","cross_cats_sorted":[],"title_canon_sha256":"670aeb994e1dd107648eff063b8171c8b3076ec5bdbbb093c183a3f0fc71f32c","abstract_canon_sha256":"8faf3ae4b943052600f85c0c8409cc5f692216c17ddbabbf6996eccd4bd53975"},"schema_version":"1.0"},"canonical_sha256":"467793d2985db69532991ebf3a8d2051fd4c4c001e92351925a657ccb12bea47","source":{"kind":"arxiv","id":"1901.06733","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.06733","created_at":"2026-05-17T23:55:49Z"},{"alias_kind":"arxiv_version","alias_value":"1901.06733v1","created_at":"2026-05-17T23:55:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.06733","created_at":"2026-05-17T23:55:49Z"},{"alias_kind":"pith_short_12","alias_value":"IZ3ZHUUYLW3J","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IZ3ZHUUYLW3JKMUZ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IZ3ZHUUY","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IZ3ZHUUYLW3JKMUZD27TVDJAKH","target":"record","payload":{"canonical_record":{"source":{"id":"1901.06733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-01-20T21:32:46Z","cross_cats_sorted":[],"title_canon_sha256":"670aeb994e1dd107648eff063b8171c8b3076ec5bdbbb093c183a3f0fc71f32c","abstract_canon_sha256":"8faf3ae4b943052600f85c0c8409cc5f692216c17ddbabbf6996eccd4bd53975"},"schema_version":"1.0"},"canonical_sha256":"467793d2985db69532991ebf3a8d2051fd4c4c001e92351925a657ccb12bea47","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:49.308712Z","signature_b64":"hmO/ZmmDSUvQ/wWdLV2qqJRlz0uQLx/UHAyoBedJzL7HQpiV8i0itCXMk3qK7ahw9LxWXz26iYADXM7eVjciBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"467793d2985db69532991ebf3a8d2051fd4c4c001e92351925a657ccb12bea47","last_reissued_at":"2026-05-17T23:55:49.308073Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:49.308073Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.06733","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:55:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hqnbVkYD0vDcIuPJ9EB4mGpqqxrJtsQNQ4RjiJ8CXEb9Ao2fA1G6071Mb+7ypU/zy1gTLbshS0gUdDSbXkVuDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T21:40:01.360639Z"},"content_sha256":"db37d0021faf47d858006ef5da123e343dd6561fbefbecb16eb30d54b97430a1","schema_version":"1.0","event_id":"sha256:db37d0021faf47d858006ef5da123e343dd6561fbefbecb16eb30d54b97430a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IZ3ZHUUYLW3JKMUZD27TVDJAKH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ring Oscillator and its application as Physical Unclonable Function (PUF) for Password Management","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Alireza Shamsoshoara","submitted_at":"2019-01-20T21:32:46Z","abstract_excerpt":"Mobile and embedded devices are becoming inevitable parts of our daily routine. Similar to other electronic devices such as read access memory (RAM) and storage, mobile devices require to authenticate and to be authenticated in a secure way. Usually, this can be accomplished by servers which possess private information for all devices. Since these devices are inherently mobile and operating in untrusted environments, they are prone to be accessed by untrustworthy users. Physical unclonable function (PUF) is a unique physical feature of a semiconductor device such as a microprocessor that can b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.06733","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-17T23:55:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5k+/xJ9kuJ6bvta9vvvzgx8wx9RNMt5415QVz7K7OiS+TiCuCES0ffEvIZoUKtKnp/Yza2gwyyv/t5c5xg1nDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T21:40:01.360985Z"},"content_sha256":"ad5213bab1bede6a1a64efa2f587b5b1c7964cdf6fef6dbf9dee1f16ebda0fc6","schema_version":"1.0","event_id":"sha256:ad5213bab1bede6a1a64efa2f587b5b1c7964cdf6fef6dbf9dee1f16ebda0fc6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IZ3ZHUUYLW3JKMUZD27TVDJAKH/bundle.json","state_url":"https://pith.science/pith/IZ3ZHUUYLW3JKMUZD27TVDJAKH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IZ3ZHUUYLW3JKMUZD27TVDJAKH/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":"2026-06-24T21:40:01Z","links":{"resolver":"https://pith.science/pith/IZ3ZHUUYLW3JKMUZD27TVDJAKH","bundle":"https://pith.science/pith/IZ3ZHUUYLW3JKMUZD27TVDJAKH/bundle.json","state":"https://pith.science/pith/IZ3ZHUUYLW3JKMUZD27TVDJAKH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IZ3ZHUUYLW3JKMUZD27TVDJAKH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IZ3ZHUUYLW3JKMUZD27TVDJAKH","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":"8faf3ae4b943052600f85c0c8409cc5f692216c17ddbabbf6996eccd4bd53975","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-01-20T21:32:46Z","title_canon_sha256":"670aeb994e1dd107648eff063b8171c8b3076ec5bdbbb093c183a3f0fc71f32c"},"schema_version":"1.0","source":{"id":"1901.06733","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.06733","created_at":"2026-05-17T23:55:49Z"},{"alias_kind":"arxiv_version","alias_value":"1901.06733v1","created_at":"2026-05-17T23:55:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.06733","created_at":"2026-05-17T23:55:49Z"},{"alias_kind":"pith_short_12","alias_value":"IZ3ZHUUYLW3J","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IZ3ZHUUYLW3JKMUZ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IZ3ZHUUY","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:ad5213bab1bede6a1a64efa2f587b5b1c7964cdf6fef6dbf9dee1f16ebda0fc6","target":"graph","created_at":"2026-05-17T23:55:49Z","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":"Mobile and embedded devices are becoming inevitable parts of our daily routine. Similar to other electronic devices such as read access memory (RAM) and storage, mobile devices require to authenticate and to be authenticated in a secure way. Usually, this can be accomplished by servers which possess private information for all devices. Since these devices are inherently mobile and operating in untrusted environments, they are prone to be accessed by untrustworthy users. Physical unclonable function (PUF) is a unique physical feature of a semiconductor device such as a microprocessor that can b","authors_text":"Alireza Shamsoshoara","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-01-20T21:32:46Z","title":"Ring Oscillator and its application as Physical Unclonable Function (PUF) for Password Management"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.06733","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:db37d0021faf47d858006ef5da123e343dd6561fbefbecb16eb30d54b97430a1","target":"record","created_at":"2026-05-17T23:55:49Z","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":"8faf3ae4b943052600f85c0c8409cc5f692216c17ddbabbf6996eccd4bd53975","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-01-20T21:32:46Z","title_canon_sha256":"670aeb994e1dd107648eff063b8171c8b3076ec5bdbbb093c183a3f0fc71f32c"},"schema_version":"1.0","source":{"id":"1901.06733","kind":"arxiv","version":1}},"canonical_sha256":"467793d2985db69532991ebf3a8d2051fd4c4c001e92351925a657ccb12bea47","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"467793d2985db69532991ebf3a8d2051fd4c4c001e92351925a657ccb12bea47","first_computed_at":"2026-05-17T23:55:49.308073Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:49.308073Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hmO/ZmmDSUvQ/wWdLV2qqJRlz0uQLx/UHAyoBedJzL7HQpiV8i0itCXMk3qK7ahw9LxWXz26iYADXM7eVjciBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:49.308712Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.06733","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:db37d0021faf47d858006ef5da123e343dd6561fbefbecb16eb30d54b97430a1","sha256:ad5213bab1bede6a1a64efa2f587b5b1c7964cdf6fef6dbf9dee1f16ebda0fc6"],"state_sha256":"368e6ce4dc5e2d6ff49dca1285632d7fe887f4962c203ad6f10c7f5c29bf49ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZNQg6FA/yIU/6Pk6CAAvfocnTe7u51aBgy6NmTbmx1LnhzpOmJWDBfC97yhGIslwDwNAqp/xGRDez4pq2SSRAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T21:40:01.363527Z","bundle_sha256":"4e7bb460ed5f6217d9d5098ab632afa6b41087dced5ee5002fe8be507a5e2174"}}