{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JYAHVVJ36LLPPDJ3J556E6W7NY","short_pith_number":"pith:JYAHVVJ3","canonical_record":{"source":{"id":"1306.2882","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-06-12T16:29:44Z","cross_cats_sorted":[],"title_canon_sha256":"0e9ea18b57ad201198d6cb48c3df15b180843cb9f0333e0fc4784da4adf93925","abstract_canon_sha256":"711c93b7ca72dbf1516022ea80c9c9aa5428cd804c298c5d533cea9775791770"},"schema_version":"1.0"},"canonical_sha256":"4e007ad53bf2d6f78d3b4f7be27adf6e271df764ffbb74134db71d441631d5c8","source":{"kind":"arxiv","id":"1306.2882","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.2882","created_at":"2026-05-18T03:21:09Z"},{"alias_kind":"arxiv_version","alias_value":"1306.2882v1","created_at":"2026-05-18T03:21:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.2882","created_at":"2026-05-18T03:21:09Z"},{"alias_kind":"pith_short_12","alias_value":"JYAHVVJ36LLP","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JYAHVVJ36LLPPDJ3","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JYAHVVJ3","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JYAHVVJ36LLPPDJ3J556E6W7NY","target":"record","payload":{"canonical_record":{"source":{"id":"1306.2882","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-06-12T16:29:44Z","cross_cats_sorted":[],"title_canon_sha256":"0e9ea18b57ad201198d6cb48c3df15b180843cb9f0333e0fc4784da4adf93925","abstract_canon_sha256":"711c93b7ca72dbf1516022ea80c9c9aa5428cd804c298c5d533cea9775791770"},"schema_version":"1.0"},"canonical_sha256":"4e007ad53bf2d6f78d3b4f7be27adf6e271df764ffbb74134db71d441631d5c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:21:09.136082Z","signature_b64":"cpPudG2I1V02vkO88thgdwKN/Ld9IyT2kho+5Su2lXDLjtnHPo5MXAjsihtu2YwKm9Y79tg86m5gCnvpdBlrCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e007ad53bf2d6f78d3b4f7be27adf6e271df764ffbb74134db71d441631d5c8","last_reissued_at":"2026-05-18T03:21:09.135391Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:21:09.135391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.2882","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":"2026-05-18T03:21:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A9E1T1B/vXuMaMnODOBdxJ5o2jPhC8BI95SkYCbJOrgZACz5r5lWAdW9zJlIjhvGS4pfjZB4YGlydEBgOtcGAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:31:29.791688Z"},"content_sha256":"49538342419660f75911ab6692f90fe1a9d22127bf0d762ab00022c24ffeb526","schema_version":"1.0","event_id":"sha256:49538342419660f75911ab6692f90fe1a9d22127bf0d762ab00022c24ffeb526"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JYAHVVJ36LLPPDJ3J556E6W7NY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A New Graphical Password Scheme Resistant to Shoulder-Surfing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Haichang Gao, Uwe Aickelin, Xiuling Chang, Xiyang Liu, Zhongjie Ren","submitted_at":"2013-06-12T16:29:44Z","abstract_excerpt":"Shoulder-surfing is a known risk where an attacker can capture a password by direct observation or by recording the authentication session. Due to the visual interface, this problem has become exacerbated in graphical passwords. There have been some graphical schemes resistant or immune to shoulder-surfing, but they have significant usability drawbacks, usually in the time and effort to log in. In this paper, we propose and evaluate a new shoulder-surfing resistant scheme which has a desirable usability for PDAs. Our inspiration comes from the drawing input method in DAS and the association mn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.2882","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":"2026-05-18T03:21:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eZfrbmIN9zARrUbVzJ0Ip12rBjUziZEcs7sP982Zxfs7TC+059WpE46jezteR+dWcLKoDbmNRzH9h7FAie4WAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:31:29.792388Z"},"content_sha256":"8b4cc0def342e35b915374e4fe7a8a2f00a79abd2eaf06e5b5ce6ecc7c0ef1e1","schema_version":"1.0","event_id":"sha256:8b4cc0def342e35b915374e4fe7a8a2f00a79abd2eaf06e5b5ce6ecc7c0ef1e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JYAHVVJ36LLPPDJ3J556E6W7NY/bundle.json","state_url":"https://pith.science/pith/JYAHVVJ36LLPPDJ3J556E6W7NY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JYAHVVJ36LLPPDJ3J556E6W7NY/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":"2026-05-29T17:31:29Z","links":{"resolver":"https://pith.science/pith/JYAHVVJ36LLPPDJ3J556E6W7NY","bundle":"https://pith.science/pith/JYAHVVJ36LLPPDJ3J556E6W7NY/bundle.json","state":"https://pith.science/pith/JYAHVVJ36LLPPDJ3J556E6W7NY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JYAHVVJ36LLPPDJ3J556E6W7NY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JYAHVVJ36LLPPDJ3J556E6W7NY","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":"711c93b7ca72dbf1516022ea80c9c9aa5428cd804c298c5d533cea9775791770","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-06-12T16:29:44Z","title_canon_sha256":"0e9ea18b57ad201198d6cb48c3df15b180843cb9f0333e0fc4784da4adf93925"},"schema_version":"1.0","source":{"id":"1306.2882","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.2882","created_at":"2026-05-18T03:21:09Z"},{"alias_kind":"arxiv_version","alias_value":"1306.2882v1","created_at":"2026-05-18T03:21:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.2882","created_at":"2026-05-18T03:21:09Z"},{"alias_kind":"pith_short_12","alias_value":"JYAHVVJ36LLP","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JYAHVVJ36LLPPDJ3","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JYAHVVJ3","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:8b4cc0def342e35b915374e4fe7a8a2f00a79abd2eaf06e5b5ce6ecc7c0ef1e1","target":"graph","created_at":"2026-05-18T03:21:09Z","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":"Shoulder-surfing is a known risk where an attacker can capture a password by direct observation or by recording the authentication session. Due to the visual interface, this problem has become exacerbated in graphical passwords. There have been some graphical schemes resistant or immune to shoulder-surfing, but they have significant usability drawbacks, usually in the time and effort to log in. In this paper, we propose and evaluate a new shoulder-surfing resistant scheme which has a desirable usability for PDAs. Our inspiration comes from the drawing input method in DAS and the association mn","authors_text":"Haichang Gao, Uwe Aickelin, Xiuling Chang, Xiyang Liu, Zhongjie Ren","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-06-12T16:29:44Z","title":"A New Graphical Password Scheme Resistant to Shoulder-Surfing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.2882","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":"sha256:49538342419660f75911ab6692f90fe1a9d22127bf0d762ab00022c24ffeb526","target":"record","created_at":"2026-05-18T03:21:09Z","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":"711c93b7ca72dbf1516022ea80c9c9aa5428cd804c298c5d533cea9775791770","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-06-12T16:29:44Z","title_canon_sha256":"0e9ea18b57ad201198d6cb48c3df15b180843cb9f0333e0fc4784da4adf93925"},"schema_version":"1.0","source":{"id":"1306.2882","kind":"arxiv","version":1}},"canonical_sha256":"4e007ad53bf2d6f78d3b4f7be27adf6e271df764ffbb74134db71d441631d5c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e007ad53bf2d6f78d3b4f7be27adf6e271df764ffbb74134db71d441631d5c8","first_computed_at":"2026-05-18T03:21:09.135391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:21:09.135391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cpPudG2I1V02vkO88thgdwKN/Ld9IyT2kho+5Su2lXDLjtnHPo5MXAjsihtu2YwKm9Y79tg86m5gCnvpdBlrCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:21:09.136082Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.2882","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49538342419660f75911ab6692f90fe1a9d22127bf0d762ab00022c24ffeb526","sha256:8b4cc0def342e35b915374e4fe7a8a2f00a79abd2eaf06e5b5ce6ecc7c0ef1e1"],"state_sha256":"c01dbc6b3e12fb9127e48c714464684b79c7c69bce1569331df665cc58cc8658"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E/xvaYPlz3px6qish6lVDUjB6J0up7ZKgWvYyljgO/linVVY6H5KyfHY9fnANsXVwR07pVvnsMA3V0HBb7guDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T17:31:29.796965Z","bundle_sha256":"047c194ee45aef2d1f39756df0f7e570585317d66ceb2b8215c68366ce3b30c4"}}