{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:RRI344QRLVONK7A55KZ7BGG65E","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":"f41c003bdf34bc0916be4b8da66a26dd40ce451216b3721ed659656ea38c7f8b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2013-12-18T06:04:26Z","title_canon_sha256":"19cce75178457d64905d8a984de9b7e85c8301cba338f2ee210fa08aab9be64e"},"schema_version":"1.0","source":{"id":"1312.5047","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.5047","created_at":"2026-05-18T02:29:17Z"},{"alias_kind":"arxiv_version","alias_value":"1312.5047v3","created_at":"2026-05-18T02:29:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.5047","created_at":"2026-05-18T02:29:17Z"},{"alias_kind":"pith_short_12","alias_value":"RRI344QRLVON","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"RRI344QRLVONK7A5","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"RRI344QR","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:ab05f9a11e9fc55fcfb6a22020123695aafdc26deecdab99d19bced8e29948f3","target":"graph","created_at":"2026-05-18T02:29:17Z","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 study the inverse problem of estimating n locations $t_1, ..., t_n$ (up to global scale, translation and negation) in $R^d$ from noisy measurements of a subset of the (unsigned) pairwise lines that connect them, that is, from noisy measurements of $\\pm (t_i - t_j)/\\|t_i - t_j\\|$ for some pairs (i,j) (where the signs are unknown). This problem is at the core of the structure from motion (SfM) problem in computer vision, where the $t_i$'s represent camera locations in $R^3$. The noiseless version of the problem, with exact line measurements, has been considered previously under the general ti","authors_text":"Amit Singer, Onur Ozyesil, Ronen Basri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2013-12-18T06:04:26Z","title":"Stable Camera Motion Estimation Using Convex Programming"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.5047","kind":"arxiv","version":3},"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":"sha256:76a7565cefcf651fac6b3ac76b733c4e08eee302c6f51795f12295253628f023","target":"record","created_at":"2026-05-18T02:29:17Z","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":"f41c003bdf34bc0916be4b8da66a26dd40ce451216b3721ed659656ea38c7f8b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2013-12-18T06:04:26Z","title_canon_sha256":"19cce75178457d64905d8a984de9b7e85c8301cba338f2ee210fa08aab9be64e"},"schema_version":"1.0","source":{"id":"1312.5047","kind":"arxiv","version":3}},"canonical_sha256":"8c51be72115d5cd57c1deab3f098dee92b6fe1a1df3657b36a3cf8e53d86ab81","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8c51be72115d5cd57c1deab3f098dee92b6fe1a1df3657b36a3cf8e53d86ab81","first_computed_at":"2026-05-18T02:29:17.576659Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:29:17.576659Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9ahVR5C9mkBTT1KI2UvGWzhb38P48AxC0WsBz8H5bUalavvWuLsnMPanB4bXpoDre4LkAbF47PhqB3hmlDneDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:29:17.577110Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.5047","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76a7565cefcf651fac6b3ac76b733c4e08eee302c6f51795f12295253628f023","sha256:ab05f9a11e9fc55fcfb6a22020123695aafdc26deecdab99d19bced8e29948f3"],"state_sha256":"d374a81e80828ad3973d81e3c949172c46b9206197e0570b6a7ddca554b7380d"}