{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:U3MIRII3EBMFMIZCNW6LOUYGLH","short_pith_number":"pith:U3MIRII3","canonical_record":{"source":{"id":"1310.3902","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-10-15T02:46:58Z","cross_cats_sorted":["cs.CR","math.IT"],"title_canon_sha256":"437ec9d2a084f30a4682618f99991934561c9bcd52a4b2130efef4e8e98a6019","abstract_canon_sha256":"fd3409cb8885d85cc625433652cd727ada6cb51c3bb045f1c0e9313347ce1952"},"schema_version":"1.0"},"canonical_sha256":"a6d888a11b20585623226dbcb7530659f18f340e552b781d044ca99f792a16ee","source":{"kind":"arxiv","id":"1310.3902","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3902","created_at":"2026-05-18T02:00:02Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3902v2","created_at":"2026-05-18T02:00:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3902","created_at":"2026-05-18T02:00:02Z"},{"alias_kind":"pith_short_12","alias_value":"U3MIRII3EBMF","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"U3MIRII3EBMFMIZC","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"U3MIRII3","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:U3MIRII3EBMFMIZCNW6LOUYGLH","target":"record","payload":{"canonical_record":{"source":{"id":"1310.3902","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-10-15T02:46:58Z","cross_cats_sorted":["cs.CR","math.IT"],"title_canon_sha256":"437ec9d2a084f30a4682618f99991934561c9bcd52a4b2130efef4e8e98a6019","abstract_canon_sha256":"fd3409cb8885d85cc625433652cd727ada6cb51c3bb045f1c0e9313347ce1952"},"schema_version":"1.0"},"canonical_sha256":"a6d888a11b20585623226dbcb7530659f18f340e552b781d044ca99f792a16ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:02.778396Z","signature_b64":"9YUqwi0nvst0wyZxrmbC1YlnfMRBN+tyBnM4d1agbfeVjtw4HMAah8iUDlpAo/b0cZkXsJUPfTLA2y68GExvDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6d888a11b20585623226dbcb7530659f18f340e552b781d044ca99f792a16ee","last_reissued_at":"2026-05-18T02:00:02.777709Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:02.777709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.3902","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":"2026-05-18T02:00:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zrZz3XJNvYNZ0VRgd5QSXjgwt+AmlOnCmyd5CdNvppzh//Ibrrv32YDbaLRMms+2jt09c64X8Tq3B1axtN6ACg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T19:30:36.488266Z"},"content_sha256":"4e8d0b942790acdfa01eadcc24a4410ad8d383af6928ce3aed464e7b5a27ef7e","schema_version":"1.0","event_id":"sha256:4e8d0b942790acdfa01eadcc24a4410ad8d383af6928ce3aed464e7b5a27ef7e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:U3MIRII3EBMFMIZCNW6LOUYGLH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Message Authentication Code over a Wiretap Channel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR","math.IT"],"primary_cat":"cs.IT","authors_text":"Dajiang Chen, Shaoquan Jiang, Zhiguang Qin","submitted_at":"2013-10-15T02:46:58Z","abstract_excerpt":"Message Authentication Code (MAC) is a keyed function $f_K$ such that when Alice, who shares the secret $K$ with Bob, sends $f_K(M)$ to the latter, Bob will be assured of the integrity and authenticity of $M$. Traditionally, it is assumed that the channel is noiseless. However, Maurer showed that in this case an attacker can succeed with probability $2^{-\\frac{H(K)}{\\ell+1}}$ after authenticating $\\ell$ messages. In this paper, we consider the setting where the channel is noisy. Specifically, Alice and Bob are connected by a discrete memoryless channel (DMC) $W_1$ and a noiseless but insecure "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3902","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":""},"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":"2026-05-18T02:00:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5uL8ltGDHKuThrY8rY975XSQ+uKiZU8hAJhWJr/jwXazkMsmGY1LwgT0Il2DyRBSlr8YauFOtuiREsVfdraKAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T19:30:36.488720Z"},"content_sha256":"bd22df4b918135efe6f94d96f4b28e9999a60bbff7954bf592f4e614a96ce327","schema_version":"1.0","event_id":"sha256:bd22df4b918135efe6f94d96f4b28e9999a60bbff7954bf592f4e614a96ce327"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U3MIRII3EBMFMIZCNW6LOUYGLH/bundle.json","state_url":"https://pith.science/pith/U3MIRII3EBMFMIZCNW6LOUYGLH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U3MIRII3EBMFMIZCNW6LOUYGLH/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":"2026-08-19T19:30:36Z","links":{"resolver":"https://pith.science/pith/U3MIRII3EBMFMIZCNW6LOUYGLH","bundle":"https://pith.science/pith/U3MIRII3EBMFMIZCNW6LOUYGLH/bundle.json","state":"https://pith.science/pith/U3MIRII3EBMFMIZCNW6LOUYGLH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U3MIRII3EBMFMIZCNW6LOUYGLH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:U3MIRII3EBMFMIZCNW6LOUYGLH","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":"fd3409cb8885d85cc625433652cd727ada6cb51c3bb045f1c0e9313347ce1952","cross_cats_sorted":["cs.CR","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-10-15T02:46:58Z","title_canon_sha256":"437ec9d2a084f30a4682618f99991934561c9bcd52a4b2130efef4e8e98a6019"},"schema_version":"1.0","source":{"id":"1310.3902","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3902","created_at":"2026-05-18T02:00:02Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3902v2","created_at":"2026-05-18T02:00:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3902","created_at":"2026-05-18T02:00:02Z"},{"alias_kind":"pith_short_12","alias_value":"U3MIRII3EBMF","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"U3MIRII3EBMFMIZC","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"U3MIRII3","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:bd22df4b918135efe6f94d96f4b28e9999a60bbff7954bf592f4e614a96ce327","target":"graph","created_at":"2026-05-18T02:00:02Z","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":"Message Authentication Code (MAC) is a keyed function $f_K$ such that when Alice, who shares the secret $K$ with Bob, sends $f_K(M)$ to the latter, Bob will be assured of the integrity and authenticity of $M$. Traditionally, it is assumed that the channel is noiseless. However, Maurer showed that in this case an attacker can succeed with probability $2^{-\\frac{H(K)}{\\ell+1}}$ after authenticating $\\ell$ messages. In this paper, we consider the setting where the channel is noisy. Specifically, Alice and Bob are connected by a discrete memoryless channel (DMC) $W_1$ and a noiseless but insecure ","authors_text":"Dajiang Chen, Shaoquan Jiang, Zhiguang Qin","cross_cats":["cs.CR","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-10-15T02:46:58Z","title":"Message Authentication Code over a Wiretap Channel"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3902","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":"sha256:4e8d0b942790acdfa01eadcc24a4410ad8d383af6928ce3aed464e7b5a27ef7e","target":"record","created_at":"2026-05-18T02:00:02Z","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":"fd3409cb8885d85cc625433652cd727ada6cb51c3bb045f1c0e9313347ce1952","cross_cats_sorted":["cs.CR","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-10-15T02:46:58Z","title_canon_sha256":"437ec9d2a084f30a4682618f99991934561c9bcd52a4b2130efef4e8e98a6019"},"schema_version":"1.0","source":{"id":"1310.3902","kind":"arxiv","version":2}},"canonical_sha256":"a6d888a11b20585623226dbcb7530659f18f340e552b781d044ca99f792a16ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6d888a11b20585623226dbcb7530659f18f340e552b781d044ca99f792a16ee","first_computed_at":"2026-05-18T02:00:02.777709Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:02.777709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9YUqwi0nvst0wyZxrmbC1YlnfMRBN+tyBnM4d1agbfeVjtw4HMAah8iUDlpAo/b0cZkXsJUPfTLA2y68GExvDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:02.778396Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.3902","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4e8d0b942790acdfa01eadcc24a4410ad8d383af6928ce3aed464e7b5a27ef7e","sha256:bd22df4b918135efe6f94d96f4b28e9999a60bbff7954bf592f4e614a96ce327"],"state_sha256":"c988159ff9ce9bfe37536f7911be936eb4415036c6e243d82761ad96f1d34da7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P5RualyRRVmnivsv9jTdyX2cSdISs6SVHrXVKcErM1AQTOtj8Zh7C0ERKpwrWajEc7/HhfN9MP2e7otETPBtCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T19:30:36.493462Z","bundle_sha256":"14f8ea38347e84500be275d0a08e749f3ede658f829b70ba638504e06556083b"}}