{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:PXUVLHJGF5VMIGMPP2BSUZ7A7I","short_pith_number":"pith:PXUVLHJG","canonical_record":{"source":{"id":"1806.05943","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-06-15T13:14:53Z","cross_cats_sorted":[],"title_canon_sha256":"f59cb0253ec73aab19c18f98122b239816420309386724572c51db0c67c84a1e","abstract_canon_sha256":"dc7db285c771184c3a79236279cd5e65bf114af70b5a3d09c3bc689d9ed69b6b"},"schema_version":"1.0"},"canonical_sha256":"7de9559d262f6ac4198f7e832a67e0fa34301a77c1ab2042e29228c31d33308d","source":{"kind":"arxiv","id":"1806.05943","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05943","created_at":"2026-05-18T00:13:08Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05943v1","created_at":"2026-05-18T00:13:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05943","created_at":"2026-05-18T00:13:08Z"},{"alias_kind":"pith_short_12","alias_value":"PXUVLHJGF5VM","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PXUVLHJGF5VMIGMP","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PXUVLHJG","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:PXUVLHJGF5VMIGMPP2BSUZ7A7I","target":"record","payload":{"canonical_record":{"source":{"id":"1806.05943","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-06-15T13:14:53Z","cross_cats_sorted":[],"title_canon_sha256":"f59cb0253ec73aab19c18f98122b239816420309386724572c51db0c67c84a1e","abstract_canon_sha256":"dc7db285c771184c3a79236279cd5e65bf114af70b5a3d09c3bc689d9ed69b6b"},"schema_version":"1.0"},"canonical_sha256":"7de9559d262f6ac4198f7e832a67e0fa34301a77c1ab2042e29228c31d33308d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:13:08.966514Z","signature_b64":"t0rnvmWYFI0ig4ND0W2neJHs1VSq98Uca/jK0QD+cIK8pm9E91pxIXP9VbwemeN721TVSaQuEv2eEHz4/vk0DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7de9559d262f6ac4198f7e832a67e0fa34301a77c1ab2042e29228c31d33308d","last_reissued_at":"2026-05-18T00:13:08.965759Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:13:08.965759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.05943","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":"2026-05-18T00:13:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FyC61vjWEcj1q+BvfPYDHSGybZWoIdrrTaW2nXe6MABZufVeGSy6id4aXTMQkIbTm14f81ZRf4yPIAH2BYWLAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T23:09:45.478121Z"},"content_sha256":"4f142cb8a30ba5d86dc197705d30cf15508cc364a36a115dde817bb7b4b1d499","schema_version":"1.0","event_id":"sha256:4f142cb8a30ba5d86dc197705d30cf15508cc364a36a115dde817bb7b4b1d499"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:PXUVLHJGF5VMIGMPP2BSUZ7A7I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Anonymous Identity-Based Encryption with Identity Recovery","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Dongdai Lin, Xin Wang, Xuecheng Ma","submitted_at":"2018-06-15T13:14:53Z","abstract_excerpt":"Anonymous Identity-Based Encryption can protect privacy of the receiver. However, there are some situations that we need to recover the identity of the receiver, for example a dispute occurs or the privacy mechanism is abused. In this paper, we propose a new concept, referred to as Anonymous Identity-Based Encryption with Identity Recovery(AIBEIR), which is an anonymous IBE with identity recovery property. There is a party called the Identity Recovery Manager(IRM) who has a secret key to recover the identity from the ciphertext in our scheme. We construct it with an anonymous IBE and a special"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05943","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":"2026-05-18T00:13:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XJAwVp9rVlL0t2Rf6J+7CxKFy5jCtJSkadtPAgFxMG0NtGwBPwFiDJidIP0BjeKfcQ4NGxBLrwFluK/pqUJ/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T23:09:45.478486Z"},"content_sha256":"7a4af46bfafc418ea5175f011a85b13584c1157de9f8745dcb82ad428fc62761","schema_version":"1.0","event_id":"sha256:7a4af46bfafc418ea5175f011a85b13584c1157de9f8745dcb82ad428fc62761"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PXUVLHJGF5VMIGMPP2BSUZ7A7I/bundle.json","state_url":"https://pith.science/pith/PXUVLHJGF5VMIGMPP2BSUZ7A7I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PXUVLHJGF5VMIGMPP2BSUZ7A7I/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":"2026-06-24T23:09:45Z","links":{"resolver":"https://pith.science/pith/PXUVLHJGF5VMIGMPP2BSUZ7A7I","bundle":"https://pith.science/pith/PXUVLHJGF5VMIGMPP2BSUZ7A7I/bundle.json","state":"https://pith.science/pith/PXUVLHJGF5VMIGMPP2BSUZ7A7I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PXUVLHJGF5VMIGMPP2BSUZ7A7I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PXUVLHJGF5VMIGMPP2BSUZ7A7I","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":"dc7db285c771184c3a79236279cd5e65bf114af70b5a3d09c3bc689d9ed69b6b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-06-15T13:14:53Z","title_canon_sha256":"f59cb0253ec73aab19c18f98122b239816420309386724572c51db0c67c84a1e"},"schema_version":"1.0","source":{"id":"1806.05943","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05943","created_at":"2026-05-18T00:13:08Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05943v1","created_at":"2026-05-18T00:13:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05943","created_at":"2026-05-18T00:13:08Z"},{"alias_kind":"pith_short_12","alias_value":"PXUVLHJGF5VM","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PXUVLHJGF5VMIGMP","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PXUVLHJG","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:7a4af46bfafc418ea5175f011a85b13584c1157de9f8745dcb82ad428fc62761","target":"graph","created_at":"2026-05-18T00:13:08Z","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":"Anonymous Identity-Based Encryption can protect privacy of the receiver. However, there are some situations that we need to recover the identity of the receiver, for example a dispute occurs or the privacy mechanism is abused. In this paper, we propose a new concept, referred to as Anonymous Identity-Based Encryption with Identity Recovery(AIBEIR), which is an anonymous IBE with identity recovery property. There is a party called the Identity Recovery Manager(IRM) who has a secret key to recover the identity from the ciphertext in our scheme. We construct it with an anonymous IBE and a special","authors_text":"Dongdai Lin, Xin Wang, Xuecheng Ma","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-06-15T13:14:53Z","title":"Anonymous Identity-Based Encryption with Identity Recovery"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05943","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":"sha256:4f142cb8a30ba5d86dc197705d30cf15508cc364a36a115dde817bb7b4b1d499","target":"record","created_at":"2026-05-18T00:13:08Z","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":"dc7db285c771184c3a79236279cd5e65bf114af70b5a3d09c3bc689d9ed69b6b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2018-06-15T13:14:53Z","title_canon_sha256":"f59cb0253ec73aab19c18f98122b239816420309386724572c51db0c67c84a1e"},"schema_version":"1.0","source":{"id":"1806.05943","kind":"arxiv","version":1}},"canonical_sha256":"7de9559d262f6ac4198f7e832a67e0fa34301a77c1ab2042e29228c31d33308d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7de9559d262f6ac4198f7e832a67e0fa34301a77c1ab2042e29228c31d33308d","first_computed_at":"2026-05-18T00:13:08.965759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:08.965759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t0rnvmWYFI0ig4ND0W2neJHs1VSq98Uca/jK0QD+cIK8pm9E91pxIXP9VbwemeN721TVSaQuEv2eEHz4/vk0DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:08.966514Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.05943","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4f142cb8a30ba5d86dc197705d30cf15508cc364a36a115dde817bb7b4b1d499","sha256:7a4af46bfafc418ea5175f011a85b13584c1157de9f8745dcb82ad428fc62761"],"state_sha256":"6338f7fa6fa0c6b3cae69f39117c4ac11ddda51690043462bc22072941fd02cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CkmiardC/M/DGlTaa+qKgE3IcfjO9TtE+hMbOVdtiYn5HKo9SUbx4vFGg6EBXWGK89IYS7mDIzWTklWzEF18CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T23:09:45.480403Z","bundle_sha256":"08b68a94cdb3e56c7027054cb2daa8484a90b42e2449d0a04d1548ebdfc49114"}}