{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:HZT3JYAA2AXHPWGQMA4LMUGJQO","short_pith_number":"pith:HZT3JYAA","canonical_record":{"source":{"id":"1703.10187","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2017-03-29T18:17:55Z","cross_cats_sorted":[],"title_canon_sha256":"2ebc1d8073b2a34a40dbf343fc6769dd761e23ac3608ea9a675b86fc42415aec","abstract_canon_sha256":"37866fa76d5f1721b4feb222c47019141eb81786fed7e8af330aa0e7ad614c7a"},"schema_version":"1.0"},"canonical_sha256":"3e67b4e000d02e77d8d06038b650c983b683d65d24eee0afc84e3e0786e346de","source":{"kind":"arxiv","id":"1703.10187","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.10187","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"arxiv_version","alias_value":"1703.10187v1","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.10187","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"pith_short_12","alias_value":"HZT3JYAA2AXH","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"HZT3JYAA2AXHPWGQ","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"HZT3JYAA","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:HZT3JYAA2AXHPWGQMA4LMUGJQO","target":"record","payload":{"canonical_record":{"source":{"id":"1703.10187","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2017-03-29T18:17:55Z","cross_cats_sorted":[],"title_canon_sha256":"2ebc1d8073b2a34a40dbf343fc6769dd761e23ac3608ea9a675b86fc42415aec","abstract_canon_sha256":"37866fa76d5f1721b4feb222c47019141eb81786fed7e8af330aa0e7ad614c7a"},"schema_version":"1.0"},"canonical_sha256":"3e67b4e000d02e77d8d06038b650c983b683d65d24eee0afc84e3e0786e346de","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:37.677198Z","signature_b64":"uOgr5CNdG4t2D8KoovjkS4AiNaqMLo5bKXDtVOt9WNnkJ3mqDkOodItrtFDRhldmDtbmGyDvEKzJ3Qp8vwC4BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e67b4e000d02e77d8d06038b650c983b683d65d24eee0afc84e3e0786e346de","last_reissued_at":"2026-05-18T00:47:37.676746Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:37.676746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.10187","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":"2026-05-18T00:47:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E6G2sNfVho5VvxG32f4eM7zDaCRcTfkIZ0kJUknHTq6bYKf0U/pCE1Z8sQDjfkcF7M/zD85a6n8dS1MhCJRsAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:21:16.827882Z"},"content_sha256":"15dbe594993da098b7fff266cd2502f5177397a450d452b06bf677eacb8565c2","schema_version":"1.0","event_id":"sha256:15dbe594993da098b7fff266cd2502f5177397a450d452b06bf677eacb8565c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:HZT3JYAA2AXHPWGQMA4LMUGJQO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Logic Locking for Secure Outsourced Chip Fabrication: A New Attack and Provably Secure Defense Mechanism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Jun Zhang, Mahesh V. Tripunitara, Mohamed El Massad, Siddharth Garg","submitted_at":"2017-03-29T18:17:55Z","abstract_excerpt":"Chip designers outsource chip fabrication to external foundries, but at the risk of IP theft. Logic locking, a promising solution to mitigate this threat, adds extra logic gates (key gates) and inputs (key bits) to the chip so that it functions correctly only when the correct key, known only to the designer but not the foundry, is applied. In this paper, we identify a new vulnerability in all existing logic locking schemes. Prior attacks on logic locking have assumed that, in addition to the design of the locked chip, the attacker has access to a working copy of the chip. Our attack does not r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.10187","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":"2026-05-18T00:47:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gp2Sb2FqlN70S1nswWr+ZwWv8lxmfXwArJjAsCJ85y1iGVBkvEllHQjir4fr+Xx57kCVhUdzkvfZxyiVXHnxBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:21:16.828555Z"},"content_sha256":"9ee8022c756ad28c8508371bfdbfc4ca99d8feb8cad1e6237473b7868b79e221","schema_version":"1.0","event_id":"sha256:9ee8022c756ad28c8508371bfdbfc4ca99d8feb8cad1e6237473b7868b79e221"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HZT3JYAA2AXHPWGQMA4LMUGJQO/bundle.json","state_url":"https://pith.science/pith/HZT3JYAA2AXHPWGQMA4LMUGJQO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HZT3JYAA2AXHPWGQMA4LMUGJQO/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":"2026-05-30T01:21:16Z","links":{"resolver":"https://pith.science/pith/HZT3JYAA2AXHPWGQMA4LMUGJQO","bundle":"https://pith.science/pith/HZT3JYAA2AXHPWGQMA4LMUGJQO/bundle.json","state":"https://pith.science/pith/HZT3JYAA2AXHPWGQMA4LMUGJQO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HZT3JYAA2AXHPWGQMA4LMUGJQO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:HZT3JYAA2AXHPWGQMA4LMUGJQO","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":"37866fa76d5f1721b4feb222c47019141eb81786fed7e8af330aa0e7ad614c7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2017-03-29T18:17:55Z","title_canon_sha256":"2ebc1d8073b2a34a40dbf343fc6769dd761e23ac3608ea9a675b86fc42415aec"},"schema_version":"1.0","source":{"id":"1703.10187","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.10187","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"arxiv_version","alias_value":"1703.10187v1","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.10187","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"pith_short_12","alias_value":"HZT3JYAA2AXH","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"HZT3JYAA2AXHPWGQ","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"HZT3JYAA","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:9ee8022c756ad28c8508371bfdbfc4ca99d8feb8cad1e6237473b7868b79e221","target":"graph","created_at":"2026-05-18T00:47:37Z","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":"Chip designers outsource chip fabrication to external foundries, but at the risk of IP theft. Logic locking, a promising solution to mitigate this threat, adds extra logic gates (key gates) and inputs (key bits) to the chip so that it functions correctly only when the correct key, known only to the designer but not the foundry, is applied. In this paper, we identify a new vulnerability in all existing logic locking schemes. Prior attacks on logic locking have assumed that, in addition to the design of the locked chip, the attacker has access to a working copy of the chip. Our attack does not r","authors_text":"Jun Zhang, Mahesh V. Tripunitara, Mohamed El Massad, Siddharth Garg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2017-03-29T18:17:55Z","title":"Logic Locking for Secure Outsourced Chip Fabrication: A New Attack and Provably Secure Defense Mechanism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.10187","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":"sha256:15dbe594993da098b7fff266cd2502f5177397a450d452b06bf677eacb8565c2","target":"record","created_at":"2026-05-18T00:47:37Z","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":"37866fa76d5f1721b4feb222c47019141eb81786fed7e8af330aa0e7ad614c7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2017-03-29T18:17:55Z","title_canon_sha256":"2ebc1d8073b2a34a40dbf343fc6769dd761e23ac3608ea9a675b86fc42415aec"},"schema_version":"1.0","source":{"id":"1703.10187","kind":"arxiv","version":1}},"canonical_sha256":"3e67b4e000d02e77d8d06038b650c983b683d65d24eee0afc84e3e0786e346de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e67b4e000d02e77d8d06038b650c983b683d65d24eee0afc84e3e0786e346de","first_computed_at":"2026-05-18T00:47:37.676746Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:37.676746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uOgr5CNdG4t2D8KoovjkS4AiNaqMLo5bKXDtVOt9WNnkJ3mqDkOodItrtFDRhldmDtbmGyDvEKzJ3Qp8vwC4BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:37.677198Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.10187","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15dbe594993da098b7fff266cd2502f5177397a450d452b06bf677eacb8565c2","sha256:9ee8022c756ad28c8508371bfdbfc4ca99d8feb8cad1e6237473b7868b79e221"],"state_sha256":"4d995d5dbb03144c5a94c72ecbb7f009943939d5e7abdd12fcf30d474e05c000"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"smhuHjaL7Lw2jlwL7QH20pisBi6CvC2PM4fOB5XfJsnpjzA7eiAGX9XB7SG0To6Ud5A0NzGRHxb9VGlgG3hzDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T01:21:16.832046Z","bundle_sha256":"0274e4ddba5d79aa8f7dd3b887f089952e564e211114d2f49cf886fc82ab9c10"}}