{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:265TT7L7N5SHH2PHIRML2L62MI","short_pith_number":"pith:265TT7L7","canonical_record":{"source":{"id":"1106.1731","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-06-09T08:04:14Z","cross_cats_sorted":[],"title_canon_sha256":"48edf489e62355d295b0d68b301daea078cb3985135aecab1bc1af027c4ed010","abstract_canon_sha256":"0580784d763fafd68a8493d16d6382ee2a41397ecba2f868e1979b56ea1ef900"},"schema_version":"1.0"},"canonical_sha256":"d7bb39fd7f6f6473e9e74458bd2fda620ca60a17e3d509e601dd604a772897b3","source":{"kind":"arxiv","id":"1106.1731","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.1731","created_at":"2026-05-18T04:05:14Z"},{"alias_kind":"arxiv_version","alias_value":"1106.1731v2","created_at":"2026-05-18T04:05:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.1731","created_at":"2026-05-18T04:05:14Z"},{"alias_kind":"pith_short_12","alias_value":"265TT7L7N5SH","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"265TT7L7N5SHH2PH","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"265TT7L7","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:265TT7L7N5SHH2PHIRML2L62MI","target":"record","payload":{"canonical_record":{"source":{"id":"1106.1731","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-06-09T08:04:14Z","cross_cats_sorted":[],"title_canon_sha256":"48edf489e62355d295b0d68b301daea078cb3985135aecab1bc1af027c4ed010","abstract_canon_sha256":"0580784d763fafd68a8493d16d6382ee2a41397ecba2f868e1979b56ea1ef900"},"schema_version":"1.0"},"canonical_sha256":"d7bb39fd7f6f6473e9e74458bd2fda620ca60a17e3d509e601dd604a772897b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:05:14.976420Z","signature_b64":"0rvz12R0MptiVtmgBt8mhKX0GVgCLPGrquKTvO74dzkhBOwBl+7XTDX7YhtPd+EnmMDLlBpFChwZZs2KBHE5DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7bb39fd7f6f6473e9e74458bd2fda620ca60a17e3d509e601dd604a772897b3","last_reissued_at":"2026-05-18T04:05:14.975743Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:05:14.975743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1106.1731","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":"2026-05-18T04:05:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HyO/HRNgjxkOoAbO17GiYaAvhpcaex9AD2OEy8Iiy784PgYYvuIIvr2YltDYqkwmKODhd5f37g3LVD9ZyKOnBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T07:29:25.109053Z"},"content_sha256":"5074a7b08a4464fb1b9401dff5636fa280026e3b8b04e7a4db320f343e667383","schema_version":"1.0","event_id":"sha256:5074a7b08a4464fb1b9401dff5636fa280026e3b8b04e7a4db320f343e667383"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:265TT7L7N5SHH2PHIRML2L62MI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Security Notions for Information Theoretically Secure Encryptions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Kazuo Ohta, Mitsugu Iwamoto","submitted_at":"2011-06-09T08:04:14Z","abstract_excerpt":"This paper is concerned with several security notions for information theoretically secure encryptions defined by the variational (statistical) distance. To ensure the perfect secrecy (PS), the mutual information is often used to evaluate the statistical independence between a message and a cryptogram. On the other hand, in order to recognize the information theoretically secure encryptions and computationally secure ones comprehensively, it is necessary to reconsider the notion of PS in terms of the variational distance. However, based on the variational distance, three kinds of definitions f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.1731","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":"2026-05-18T04:05:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WncFWpH2N+qON/F9MEV+bXkTZSluScXnN3jBAeHq3rHSZvpCT78bZZIHkf3f1w72ILKJmXwhK9Y8Z/fK+BNBAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T07:29:25.109414Z"},"content_sha256":"28d5c0508fb26aa3ef3bb8cd6f15d67adb39875e01172ae42c5e6f662bed7c25","schema_version":"1.0","event_id":"sha256:28d5c0508fb26aa3ef3bb8cd6f15d67adb39875e01172ae42c5e6f662bed7c25"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/265TT7L7N5SHH2PHIRML2L62MI/bundle.json","state_url":"https://pith.science/pith/265TT7L7N5SHH2PHIRML2L62MI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/265TT7L7N5SHH2PHIRML2L62MI/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":"2026-06-03T07:29:25Z","links":{"resolver":"https://pith.science/pith/265TT7L7N5SHH2PHIRML2L62MI","bundle":"https://pith.science/pith/265TT7L7N5SHH2PHIRML2L62MI/bundle.json","state":"https://pith.science/pith/265TT7L7N5SHH2PHIRML2L62MI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/265TT7L7N5SHH2PHIRML2L62MI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:265TT7L7N5SHH2PHIRML2L62MI","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":"0580784d763fafd68a8493d16d6382ee2a41397ecba2f868e1979b56ea1ef900","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-06-09T08:04:14Z","title_canon_sha256":"48edf489e62355d295b0d68b301daea078cb3985135aecab1bc1af027c4ed010"},"schema_version":"1.0","source":{"id":"1106.1731","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.1731","created_at":"2026-05-18T04:05:14Z"},{"alias_kind":"arxiv_version","alias_value":"1106.1731v2","created_at":"2026-05-18T04:05:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.1731","created_at":"2026-05-18T04:05:14Z"},{"alias_kind":"pith_short_12","alias_value":"265TT7L7N5SH","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"265TT7L7N5SHH2PH","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"265TT7L7","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:28d5c0508fb26aa3ef3bb8cd6f15d67adb39875e01172ae42c5e6f662bed7c25","target":"graph","created_at":"2026-05-18T04:05:14Z","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":"This paper is concerned with several security notions for information theoretically secure encryptions defined by the variational (statistical) distance. To ensure the perfect secrecy (PS), the mutual information is often used to evaluate the statistical independence between a message and a cryptogram. On the other hand, in order to recognize the information theoretically secure encryptions and computationally secure ones comprehensively, it is necessary to reconsider the notion of PS in terms of the variational distance. However, based on the variational distance, three kinds of definitions f","authors_text":"Kazuo Ohta, Mitsugu Iwamoto","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-06-09T08:04:14Z","title":"Security Notions for Information Theoretically Secure Encryptions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.1731","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":"sha256:5074a7b08a4464fb1b9401dff5636fa280026e3b8b04e7a4db320f343e667383","target":"record","created_at":"2026-05-18T04:05:14Z","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":"0580784d763fafd68a8493d16d6382ee2a41397ecba2f868e1979b56ea1ef900","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-06-09T08:04:14Z","title_canon_sha256":"48edf489e62355d295b0d68b301daea078cb3985135aecab1bc1af027c4ed010"},"schema_version":"1.0","source":{"id":"1106.1731","kind":"arxiv","version":2}},"canonical_sha256":"d7bb39fd7f6f6473e9e74458bd2fda620ca60a17e3d509e601dd604a772897b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7bb39fd7f6f6473e9e74458bd2fda620ca60a17e3d509e601dd604a772897b3","first_computed_at":"2026-05-18T04:05:14.975743Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:05:14.975743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0rvz12R0MptiVtmgBt8mhKX0GVgCLPGrquKTvO74dzkhBOwBl+7XTDX7YhtPd+EnmMDLlBpFChwZZs2KBHE5DA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:05:14.976420Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.1731","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5074a7b08a4464fb1b9401dff5636fa280026e3b8b04e7a4db320f343e667383","sha256:28d5c0508fb26aa3ef3bb8cd6f15d67adb39875e01172ae42c5e6f662bed7c25"],"state_sha256":"273b93f826ac208ae332e8c32af0ed654af89d606fff61324444b68298e8b115"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"idb27sUwfqs9QnMGMRJrPBCQgkdKGJbNSFHTSubK6jFHMm2I3ZH/39j7Ul6KpsISF6Qz3H2HAmpozJSunRFrCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T07:29:25.111324Z","bundle_sha256":"974da8a9ad2f001f0a42346ac5ddc425184ce430e7b5959ac59fbf955db07d6c"}}