{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:NFGGOV7CF2B5FC67TJFGDT6FUQ","short_pith_number":"pith:NFGGOV7C","canonical_record":{"source":{"id":"1408.2852","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2014-08-12T21:01:25Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"4c7622bc4a638f50ccafc9049e041eb337570dea0006c5fbcbd47ecd0a87c8a9","abstract_canon_sha256":"24a1c4731c3d0be5d8b886990e5cca75a4ccf43a03c56c443de4d8ad45a39afc"},"schema_version":"1.0"},"canonical_sha256":"694c6757e22e83d28bdf9a4a61cfc5a4090ac5cf0d124b9fb7fbe6a96a5e6cfc","source":{"kind":"arxiv","id":"1408.2852","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.2852","created_at":"2026-05-18T02:45:21Z"},{"alias_kind":"arxiv_version","alias_value":"1408.2852v1","created_at":"2026-05-18T02:45:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.2852","created_at":"2026-05-18T02:45:21Z"},{"alias_kind":"pith_short_12","alias_value":"NFGGOV7CF2B5","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NFGGOV7CF2B5FC67","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NFGGOV7C","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:NFGGOV7CF2B5FC67TJFGDT6FUQ","target":"record","payload":{"canonical_record":{"source":{"id":"1408.2852","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2014-08-12T21:01:25Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"4c7622bc4a638f50ccafc9049e041eb337570dea0006c5fbcbd47ecd0a87c8a9","abstract_canon_sha256":"24a1c4731c3d0be5d8b886990e5cca75a4ccf43a03c56c443de4d8ad45a39afc"},"schema_version":"1.0"},"canonical_sha256":"694c6757e22e83d28bdf9a4a61cfc5a4090ac5cf0d124b9fb7fbe6a96a5e6cfc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:45:21.132848Z","signature_b64":"bvJXcucpud9HwHZmUVY/vGHlNooiTItfVuRBABqlzAMr9HfS4yiUSd5dbQxwR8Is7QYZbuvhxfVMJaaHe/cDBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"694c6757e22e83d28bdf9a4a61cfc5a4090ac5cf0d124b9fb7fbe6a96a5e6cfc","last_reissued_at":"2026-05-18T02:45:21.132388Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:45:21.132388Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.2852","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":"2026-05-18T02:45:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YMBTxSieykWUa/XCT00gnZO+3p3UVI6PanbdCZdzasWaGBhZy9aKRxUuei2HvIU4zx7g21pcrKXjFloFeYM+Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T23:40:33.863723Z"},"content_sha256":"064cc82ecdce840ddcb942ac68c33e57b692019548ec959b258e99839fa69c41","schema_version":"1.0","event_id":"sha256:064cc82ecdce840ddcb942ac68c33e57b692019548ec959b258e99839fa69c41"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:NFGGOV7CF2B5FC67TJFGDT6FUQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Comprehensive Study of the GeoPass User Authentication Scheme","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR"],"primary_cat":"cs.HC","authors_text":"Arlington, Mahdi Nasrullah Al-Ameen (1), Matthew Wright (1) ((1) The University of Texas at Arlington, TX, USA)","submitted_at":"2014-08-12T21:01:25Z","abstract_excerpt":"Before deploying a new user authentication scheme, it is critical to subject the scheme to comprehensive study. Few works, however, have undertaken such a study. Recently, Thorpe et al. proposed GeoPass, the most promising of a class of user authentication schemes based on geographic locations in online maps. Their study showed very high memorability (97%) and satisfactory resilience against online guessing, which means that GeoPass has compelling features for real-world use. No comprehensive study, however, has been conducted for GeoPass or any other location-based password scheme. In this pa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.2852","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":"2026-05-18T02:45:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vQdbN9AMOGbUFBiZfm6qTv5m2GKRJr0elueX6yUQk3vHAXPRUTfYPd+YMbWY292AWzKRHz1I7vFSKlvvrQxnBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T23:40:33.864463Z"},"content_sha256":"bb2c3b91c3dc4d5d8713c61caface79ecce0b419172ebf6ccd8cc873a5fe1918","schema_version":"1.0","event_id":"sha256:bb2c3b91c3dc4d5d8713c61caface79ecce0b419172ebf6ccd8cc873a5fe1918"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NFGGOV7CF2B5FC67TJFGDT6FUQ/bundle.json","state_url":"https://pith.science/pith/NFGGOV7CF2B5FC67TJFGDT6FUQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NFGGOV7CF2B5FC67TJFGDT6FUQ/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":"2026-05-29T23:40:33Z","links":{"resolver":"https://pith.science/pith/NFGGOV7CF2B5FC67TJFGDT6FUQ","bundle":"https://pith.science/pith/NFGGOV7CF2B5FC67TJFGDT6FUQ/bundle.json","state":"https://pith.science/pith/NFGGOV7CF2B5FC67TJFGDT6FUQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NFGGOV7CF2B5FC67TJFGDT6FUQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:NFGGOV7CF2B5FC67TJFGDT6FUQ","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":"24a1c4731c3d0be5d8b886990e5cca75a4ccf43a03c56c443de4d8ad45a39afc","cross_cats_sorted":["cs.CR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2014-08-12T21:01:25Z","title_canon_sha256":"4c7622bc4a638f50ccafc9049e041eb337570dea0006c5fbcbd47ecd0a87c8a9"},"schema_version":"1.0","source":{"id":"1408.2852","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.2852","created_at":"2026-05-18T02:45:21Z"},{"alias_kind":"arxiv_version","alias_value":"1408.2852v1","created_at":"2026-05-18T02:45:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.2852","created_at":"2026-05-18T02:45:21Z"},{"alias_kind":"pith_short_12","alias_value":"NFGGOV7CF2B5","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NFGGOV7CF2B5FC67","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NFGGOV7C","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:bb2c3b91c3dc4d5d8713c61caface79ecce0b419172ebf6ccd8cc873a5fe1918","target":"graph","created_at":"2026-05-18T02:45:21Z","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":"Before deploying a new user authentication scheme, it is critical to subject the scheme to comprehensive study. Few works, however, have undertaken such a study. Recently, Thorpe et al. proposed GeoPass, the most promising of a class of user authentication schemes based on geographic locations in online maps. Their study showed very high memorability (97%) and satisfactory resilience against online guessing, which means that GeoPass has compelling features for real-world use. No comprehensive study, however, has been conducted for GeoPass or any other location-based password scheme. In this pa","authors_text":"Arlington, Mahdi Nasrullah Al-Ameen (1), Matthew Wright (1) ((1) The University of Texas at Arlington, TX, USA)","cross_cats":["cs.CR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2014-08-12T21:01:25Z","title":"A Comprehensive Study of the GeoPass User Authentication Scheme"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.2852","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":"sha256:064cc82ecdce840ddcb942ac68c33e57b692019548ec959b258e99839fa69c41","target":"record","created_at":"2026-05-18T02:45:21Z","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":"24a1c4731c3d0be5d8b886990e5cca75a4ccf43a03c56c443de4d8ad45a39afc","cross_cats_sorted":["cs.CR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2014-08-12T21:01:25Z","title_canon_sha256":"4c7622bc4a638f50ccafc9049e041eb337570dea0006c5fbcbd47ecd0a87c8a9"},"schema_version":"1.0","source":{"id":"1408.2852","kind":"arxiv","version":1}},"canonical_sha256":"694c6757e22e83d28bdf9a4a61cfc5a4090ac5cf0d124b9fb7fbe6a96a5e6cfc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"694c6757e22e83d28bdf9a4a61cfc5a4090ac5cf0d124b9fb7fbe6a96a5e6cfc","first_computed_at":"2026-05-18T02:45:21.132388Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:45:21.132388Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bvJXcucpud9HwHZmUVY/vGHlNooiTItfVuRBABqlzAMr9HfS4yiUSd5dbQxwR8Is7QYZbuvhxfVMJaaHe/cDBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:45:21.132848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.2852","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:064cc82ecdce840ddcb942ac68c33e57b692019548ec959b258e99839fa69c41","sha256:bb2c3b91c3dc4d5d8713c61caface79ecce0b419172ebf6ccd8cc873a5fe1918"],"state_sha256":"b1ff991108662822bf8231a551557b548fce06a8c874607c4b0406694ad56c1e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SkKlDj6KN1C/IFuvmJGAM6ZPdrGc06MtU3Rs0GLSj84k4LfpQyT0QspQHoq7IRV3QeWYMnwhkg7oGOigOi7DBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T23:40:33.868655Z","bundle_sha256":"97ab15b780597ded1618e86ec3854ba5002a85f19c3d093db3807f216ee49542"}}