{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:G2I2QOY2UAPIM2ONAVX3BEGX36","short_pith_number":"pith:G2I2QOY2","canonical_record":{"source":{"id":"1408.3248","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-08-14T11:02:49Z","cross_cats_sorted":[],"title_canon_sha256":"37da25658a89d30c4be8597f6f297ed95508491c6d207f5ba35e5a3215bc4d45","abstract_canon_sha256":"3c52b0804543547845af3563113a1669e2cbca8609f2259d82f6b8dbef28f6ef"},"schema_version":"1.0"},"canonical_sha256":"3691a83b1aa01e8669cd056fb090d7df82b41cec6fbcff92b47dcb569dedd95e","source":{"kind":"arxiv","id":"1408.3248","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3248","created_at":"2026-05-18T02:45:13Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3248v1","created_at":"2026-05-18T02:45:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3248","created_at":"2026-05-18T02:45:13Z"},{"alias_kind":"pith_short_12","alias_value":"G2I2QOY2UAPI","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"G2I2QOY2UAPIM2ON","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"G2I2QOY2","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:G2I2QOY2UAPIM2ONAVX3BEGX36","target":"record","payload":{"canonical_record":{"source":{"id":"1408.3248","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-08-14T11:02:49Z","cross_cats_sorted":[],"title_canon_sha256":"37da25658a89d30c4be8597f6f297ed95508491c6d207f5ba35e5a3215bc4d45","abstract_canon_sha256":"3c52b0804543547845af3563113a1669e2cbca8609f2259d82f6b8dbef28f6ef"},"schema_version":"1.0"},"canonical_sha256":"3691a83b1aa01e8669cd056fb090d7df82b41cec6fbcff92b47dcb569dedd95e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:45:13.431367Z","signature_b64":"NLI9QEX//1bXvz03LFvj7jP4aoBZKG/Cmb6v2WtidIG1HeD9lchOjtWhPPTBXIAxRWeBg3HaKE+Y8KEZpThyCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3691a83b1aa01e8669cd056fb090d7df82b41cec6fbcff92b47dcb569dedd95e","last_reissued_at":"2026-05-18T02:45:13.430763Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:45:13.430763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.3248","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":"2026-05-18T02:45:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YvzUARyvvh6PhiqD2aiNBM/NWb4xIssFLJeOMuLMmuLJhLMM7DuvrtFdwjPiXvSgHOqBpu1T1/w805t0RR3yDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:38:01.181048Z"},"content_sha256":"358b5d314b59d3332dc7cb098a7fde2022d6171961be7941b91c1ecacb40684e","schema_version":"1.0","event_id":"sha256:358b5d314b59d3332dc7cb098a7fde2022d6171961be7941b91c1ecacb40684e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:G2I2QOY2UAPIM2ONAVX3BEGX36","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superresolution Multipoint Ranging with Optimized Sampling via Orthogonally Designed Golomb Rulers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.OC","authors_text":"Giuseppe Abreu, Omotayo Oshiga, Stefano Severi","submitted_at":"2014-08-14T11:02:49Z","abstract_excerpt":"We consider the problem of performing ranging measurements between a source and multiple receivers efficiently and accurately, as required by distance-based wireless localization systems. To this end, a new multipoint ranging algorithm is proposed, which is obtained by adapting superresolution techniques to the ranging problem, using for the sake of illustration the specific cases of ToA and PDoA, unified under the same mathematical framework. The algorithm handles multipoint ranging in an efficient manner by employing an orthogonalized non-uniform sampling scheme optimised via Golomb rulers. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.3248","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":"2026-05-18T02:45:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"51gNUt7mS8cANhiDpj9sRrsgZ6pEOp4A5UVEuUPt/lT90iAS6HqttfHSqz2H0RtQlp4tt5HK8kc4CILLs4gyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:38:01.181405Z"},"content_sha256":"3cb3073cdcb0e977e395f69a065ccf542915bcc59977a09f7a98c5f0628cd90c","schema_version":"1.0","event_id":"sha256:3cb3073cdcb0e977e395f69a065ccf542915bcc59977a09f7a98c5f0628cd90c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G2I2QOY2UAPIM2ONAVX3BEGX36/bundle.json","state_url":"https://pith.science/pith/G2I2QOY2UAPIM2ONAVX3BEGX36/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G2I2QOY2UAPIM2ONAVX3BEGX36/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":"2026-07-07T10:38:01Z","links":{"resolver":"https://pith.science/pith/G2I2QOY2UAPIM2ONAVX3BEGX36","bundle":"https://pith.science/pith/G2I2QOY2UAPIM2ONAVX3BEGX36/bundle.json","state":"https://pith.science/pith/G2I2QOY2UAPIM2ONAVX3BEGX36/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G2I2QOY2UAPIM2ONAVX3BEGX36/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:G2I2QOY2UAPIM2ONAVX3BEGX36","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":"3c52b0804543547845af3563113a1669e2cbca8609f2259d82f6b8dbef28f6ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-08-14T11:02:49Z","title_canon_sha256":"37da25658a89d30c4be8597f6f297ed95508491c6d207f5ba35e5a3215bc4d45"},"schema_version":"1.0","source":{"id":"1408.3248","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3248","created_at":"2026-05-18T02:45:13Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3248v1","created_at":"2026-05-18T02:45:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3248","created_at":"2026-05-18T02:45:13Z"},{"alias_kind":"pith_short_12","alias_value":"G2I2QOY2UAPI","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"G2I2QOY2UAPIM2ON","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"G2I2QOY2","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:3cb3073cdcb0e977e395f69a065ccf542915bcc59977a09f7a98c5f0628cd90c","target":"graph","created_at":"2026-05-18T02:45:13Z","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":"We consider the problem of performing ranging measurements between a source and multiple receivers efficiently and accurately, as required by distance-based wireless localization systems. To this end, a new multipoint ranging algorithm is proposed, which is obtained by adapting superresolution techniques to the ranging problem, using for the sake of illustration the specific cases of ToA and PDoA, unified under the same mathematical framework. The algorithm handles multipoint ranging in an efficient manner by employing an orthogonalized non-uniform sampling scheme optimised via Golomb rulers. ","authors_text":"Giuseppe Abreu, Omotayo Oshiga, Stefano Severi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-08-14T11:02:49Z","title":"Superresolution Multipoint Ranging with Optimized Sampling via Orthogonally Designed Golomb Rulers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.3248","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":"sha256:358b5d314b59d3332dc7cb098a7fde2022d6171961be7941b91c1ecacb40684e","target":"record","created_at":"2026-05-18T02:45:13Z","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":"3c52b0804543547845af3563113a1669e2cbca8609f2259d82f6b8dbef28f6ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-08-14T11:02:49Z","title_canon_sha256":"37da25658a89d30c4be8597f6f297ed95508491c6d207f5ba35e5a3215bc4d45"},"schema_version":"1.0","source":{"id":"1408.3248","kind":"arxiv","version":1}},"canonical_sha256":"3691a83b1aa01e8669cd056fb090d7df82b41cec6fbcff92b47dcb569dedd95e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3691a83b1aa01e8669cd056fb090d7df82b41cec6fbcff92b47dcb569dedd95e","first_computed_at":"2026-05-18T02:45:13.430763Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:45:13.430763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NLI9QEX//1bXvz03LFvj7jP4aoBZKG/Cmb6v2WtidIG1HeD9lchOjtWhPPTBXIAxRWeBg3HaKE+Y8KEZpThyCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:45:13.431367Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.3248","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:358b5d314b59d3332dc7cb098a7fde2022d6171961be7941b91c1ecacb40684e","sha256:3cb3073cdcb0e977e395f69a065ccf542915bcc59977a09f7a98c5f0628cd90c"],"state_sha256":"df299048944890e265822783c55e7c45235079a2565a0965cdd835cb06b571e2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"83xmFo5eIT3lHMTMIA/8uBVg65NaL3avg2FtwzQMEGNT6mlicUboWjFdpZiiel6dYA+7mocKWP2hAerBRUGQDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T10:38:01.183217Z","bundle_sha256":"b80b7e605ec0bce1b147770215de5f1678fa7b1875aa501118a53f64140adb20"}}