{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MIXZYUMUYPKM7A6DQNMX5DPD6P","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":"502640b996f3568f7093cbba0f3bccd3648f1132ed35ec554765940eb0c62a2a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2017-02-27T17:02:45Z","title_canon_sha256":"139bf92e8d77bdefb4ecb35e439ebff8a4c2bc8f8ff41fb17bcc742224adb89d"},"schema_version":"1.0","source":{"id":"1702.08377","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.08377","created_at":"2026-05-18T00:49:55Z"},{"alias_kind":"arxiv_version","alias_value":"1702.08377v1","created_at":"2026-05-18T00:49:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.08377","created_at":"2026-05-18T00:49:55Z"},{"alias_kind":"pith_short_12","alias_value":"MIXZYUMUYPKM","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MIXZYUMUYPKM7A6D","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MIXZYUMU","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:acac4aed1cf917366ddbcccdf864058df34cd6e79dd99785a27c66a1b8dccbe7","target":"graph","created_at":"2026-05-18T00:49:55Z","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":"Today, location-based applications and services such as friend finders and geo-social networks are very popular. However, storing private position information on third-party location servers leads to privacy problems. In our previous work, we proposed a position sharing approach for secure management of positions on non-trusted servers, which distributes position shares of limited precision among servers of several providers. In this paper, we propose two novel contributions to improve the original approach. First, we optimize the placement of shares among servers by taking their trustworthine","authors_text":"Bj\\\"orn Schembera, Frank D\\\"urr, Kurt Rothermel, Pavel Skvortsov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2017-02-27T17:02:45Z","title":"Optimized Secure Position Sharing with Non-trusted Servers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.08377","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":"sha256:2afadd8acf7dc38cb5c9460b2eaedf1c7db812ea52d8fd3b4e2081fa76934c42","target":"record","created_at":"2026-05-18T00:49:55Z","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":"502640b996f3568f7093cbba0f3bccd3648f1132ed35ec554765940eb0c62a2a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2017-02-27T17:02:45Z","title_canon_sha256":"139bf92e8d77bdefb4ecb35e439ebff8a4c2bc8f8ff41fb17bcc742224adb89d"},"schema_version":"1.0","source":{"id":"1702.08377","kind":"arxiv","version":1}},"canonical_sha256":"622f9c5194c3d4cf83c383597e8de3f3e9db7a9f500a8d8dfe6d390aad676f5f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"622f9c5194c3d4cf83c383597e8de3f3e9db7a9f500a8d8dfe6d390aad676f5f","first_computed_at":"2026-05-18T00:49:55.078566Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:55.078566Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jcULpTmqgdJYM3NB3MQT6HT6e9LTDAe7KMiUFfxTl4lwlDr+mJuWFFEuLPHeqMMQpV5ALjDeVl54v4Qw3jLIBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:55.079240Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.08377","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2afadd8acf7dc38cb5c9460b2eaedf1c7db812ea52d8fd3b4e2081fa76934c42","sha256:acac4aed1cf917366ddbcccdf864058df34cd6e79dd99785a27c66a1b8dccbe7"],"state_sha256":"d3bf6e0bf0fe0528a15f0509cc4165a4f010300012eeadf4b810e6019d6b6f70"}