{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ELOAMJKT75OMTHS3F25W7G7B7G","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":"1a6e0d8f00467d1a7f72ac34eff393217eeb1183c587e702e96c8061fbdf388e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2015-05-07T19:39:39Z","title_canon_sha256":"f3559744266fbc5f16d878aba7041ab613ec789bd029496bf447eb2840971ff9"},"schema_version":"1.0","source":{"id":"1505.01839","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01839","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01839v1","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01839","created_at":"2026-05-18T02:16:38Z"},{"alias_kind":"pith_short_12","alias_value":"ELOAMJKT75OM","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"ELOAMJKT75OMTHS3","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"ELOAMJKT","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:55c967a33191f3d4376b0809bd53dd75ff724eb732982aa1b8da56e2faa1ec5b","target":"graph","created_at":"2026-05-18T02:16:38Z","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":"Secure positioning, a prover located at a specified position convinces a set of verifiers at distant reference stations that he/she is indeed at the specific position, is considered to be impossible if the prover and verifiers have no pre-shared data while dishonest provers have an arbitrary amount of pre-shared entanglement [Nature 479, 307-308 (2011)]. We argue here that current impossibility results for secure positioning are the upshot of not utilizing full powers of relativistic quantum information theory and show that secure positioning and hence position-based quantum cryptography is po","authors_text":"Muhammad Nadeem","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2015-05-07T19:39:39Z","title":"The causal structure of Minkowski space time: possibilities and impossibilities of secure positioning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01839","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":"sha256:84d32851dbc3ed18b20ec809d49e6b5c80f9acf2bcecb0d0532615044290e700","target":"record","created_at":"2026-05-18T02:16:38Z","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":"1a6e0d8f00467d1a7f72ac34eff393217eeb1183c587e702e96c8061fbdf388e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2015-05-07T19:39:39Z","title_canon_sha256":"f3559744266fbc5f16d878aba7041ab613ec789bd029496bf447eb2840971ff9"},"schema_version":"1.0","source":{"id":"1505.01839","kind":"arxiv","version":1}},"canonical_sha256":"22dc062553ff5cc99e5b2ebb6f9be1f9bbb093971425949455f9b04660234c50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"22dc062553ff5cc99e5b2ebb6f9be1f9bbb093971425949455f9b04660234c50","first_computed_at":"2026-05-18T02:16:38.762786Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:16:38.762786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/47PoEw3Nl6hrYH05PifJid5yOVp+Yho0pUKBMWfNkX7MHGZN4bHhPyNdQzxCpO4d8OVoixYMhtBZC2MHN4XBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:16:38.763466Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.01839","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84d32851dbc3ed18b20ec809d49e6b5c80f9acf2bcecb0d0532615044290e700","sha256:55c967a33191f3d4376b0809bd53dd75ff724eb732982aa1b8da56e2faa1ec5b"],"state_sha256":"2d32756e8ee602e3a3d24fac5cf3a646822982f0c531d0b0ae31bdd995de4b19"}