{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:B3KUTQS63OWLV532CJ4OUOGZTO","short_pith_number":"pith:B3KUTQS6","canonical_record":{"source":{"id":"1902.11084","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-28T13:57:58Z","cross_cats_sorted":[],"title_canon_sha256":"7a916815dfdb1bb8093dc0670e78e8d02c76773ed27e3788d39c8f3408599646","abstract_canon_sha256":"8114d3a9a18da99affcafda7ecc4796b41e56b8cac1f07efcbee3718a46751c2"},"schema_version":"1.0"},"canonical_sha256":"0ed549c25edbacbaf77a1278ea38d99bbbdf2844b4ea59132d20b6611aa79505","source":{"kind":"arxiv","id":"1902.11084","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.11084","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"arxiv_version","alias_value":"1902.11084v1","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.11084","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"pith_short_12","alias_value":"B3KUTQS63OWL","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"pith_short_16","alias_value":"B3KUTQS63OWLV532","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"pith_short_8","alias_value":"B3KUTQS6","created_at":"2026-07-05T01:25:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:B3KUTQS63OWLV532CJ4OUOGZTO","target":"record","payload":{"canonical_record":{"source":{"id":"1902.11084","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-28T13:57:58Z","cross_cats_sorted":[],"title_canon_sha256":"7a916815dfdb1bb8093dc0670e78e8d02c76773ed27e3788d39c8f3408599646","abstract_canon_sha256":"8114d3a9a18da99affcafda7ecc4796b41e56b8cac1f07efcbee3718a46751c2"},"schema_version":"1.0"},"canonical_sha256":"0ed549c25edbacbaf77a1278ea38d99bbbdf2844b4ea59132d20b6611aa79505","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:25:20.822366Z","signature_b64":"GkbCZgSTm8LpjJTBa5Y8OTqTQb+vW4Ooj8MZP9sVbzSNe/NruoRqwPxNBUNW4EsntLmkh6sHq8KjNMLaZQkECw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ed549c25edbacbaf77a1278ea38d99bbbdf2844b4ea59132d20b6611aa79505","last_reissued_at":"2026-07-05T01:25:20.821881Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:25:20.821881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.11084","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":"2026-07-05T01:25:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S+IVBNC44geYSeM5k9MnA09yB3F6ANs41bPceK82Ou+8LQom1pGrmyJt90PySZNvvUbh0FVe5ozFWxmBLEeNAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-29T03:36:24.505451Z"},"content_sha256":"e4f7abc579bcb9290df3d43200384ffbb851c27b0c0d346fb28fe7cb3d4d49d3","schema_version":"1.0","event_id":"sha256:e4f7abc579bcb9290df3d43200384ffbb851c27b0c0d346fb28fe7cb3d4d49d3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:B3KUTQS63OWLV532CJ4OUOGZTO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Jiri Matas, Matej Smid","submitted_at":"2019-02-28T13:57:58Z","abstract_excerpt":"A simple method for synchronization of video streams with a precision better than one millisecond is proposed. The method is applicable to any number of rolling shutter cameras and when a few photographic flashes or other abrupt lighting changes are present in the video. The approach exploits the rolling shutter sensor property that every sensor row starts its exposure with a small delay after the onset of the previous row. The cameras may have different frame rates and resolutions, and need not have overlapping fields of view. The method was validated on five minutes of four streams from an i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.11084","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1902.11084/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:25:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r9jHqd4gOYGFsKK1gVbUeqDSXjxjpSjRVv/QY670YvV2S44GmDNPTPd+E515ABWGfvQk69uxlOvlJ3sa6eJhDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-29T03:36:24.505829Z"},"content_sha256":"dce6e42db01c89c0af363f73776ea463db39ee1d5ed25ab7c95b88de3d11283d","schema_version":"1.0","event_id":"sha256:dce6e42db01c89c0af363f73776ea463db39ee1d5ed25ab7c95b88de3d11283d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B3KUTQS63OWLV532CJ4OUOGZTO/bundle.json","state_url":"https://pith.science/pith/B3KUTQS63OWLV532CJ4OUOGZTO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B3KUTQS63OWLV532CJ4OUOGZTO/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":"2026-07-29T03:36:24Z","links":{"resolver":"https://pith.science/pith/B3KUTQS63OWLV532CJ4OUOGZTO","bundle":"https://pith.science/pith/B3KUTQS63OWLV532CJ4OUOGZTO/bundle.json","state":"https://pith.science/pith/B3KUTQS63OWLV532CJ4OUOGZTO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B3KUTQS63OWLV532CJ4OUOGZTO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:B3KUTQS63OWLV532CJ4OUOGZTO","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":"8114d3a9a18da99affcafda7ecc4796b41e56b8cac1f07efcbee3718a46751c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-28T13:57:58Z","title_canon_sha256":"7a916815dfdb1bb8093dc0670e78e8d02c76773ed27e3788d39c8f3408599646"},"schema_version":"1.0","source":{"id":"1902.11084","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.11084","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"arxiv_version","alias_value":"1902.11084v1","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.11084","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"pith_short_12","alias_value":"B3KUTQS63OWL","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"pith_short_16","alias_value":"B3KUTQS63OWLV532","created_at":"2026-07-05T01:25:20Z"},{"alias_kind":"pith_short_8","alias_value":"B3KUTQS6","created_at":"2026-07-05T01:25:20Z"}],"graph_snapshots":[{"event_id":"sha256:dce6e42db01c89c0af363f73776ea463db39ee1d5ed25ab7c95b88de3d11283d","target":"graph","created_at":"2026-07-05T01:25:20Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1902.11084/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A simple method for synchronization of video streams with a precision better than one millisecond is proposed. The method is applicable to any number of rolling shutter cameras and when a few photographic flashes or other abrupt lighting changes are present in the video. The approach exploits the rolling shutter sensor property that every sensor row starts its exposure with a small delay after the onset of the previous row. The cameras may have different frame rates and resolutions, and need not have overlapping fields of view. The method was validated on five minutes of four streams from an i","authors_text":"Jiri Matas, Matej Smid","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-28T13:57:58Z","title":"Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.11084","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:e4f7abc579bcb9290df3d43200384ffbb851c27b0c0d346fb28fe7cb3d4d49d3","target":"record","created_at":"2026-07-05T01:25:20Z","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":"8114d3a9a18da99affcafda7ecc4796b41e56b8cac1f07efcbee3718a46751c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-28T13:57:58Z","title_canon_sha256":"7a916815dfdb1bb8093dc0670e78e8d02c76773ed27e3788d39c8f3408599646"},"schema_version":"1.0","source":{"id":"1902.11084","kind":"arxiv","version":1}},"canonical_sha256":"0ed549c25edbacbaf77a1278ea38d99bbbdf2844b4ea59132d20b6611aa79505","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ed549c25edbacbaf77a1278ea38d99bbbdf2844b4ea59132d20b6611aa79505","first_computed_at":"2026-07-05T01:25:20.821881Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:25:20.821881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GkbCZgSTm8LpjJTBa5Y8OTqTQb+vW4Ooj8MZP9sVbzSNe/NruoRqwPxNBUNW4EsntLmkh6sHq8KjNMLaZQkECw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:25:20.822366Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.11084","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e4f7abc579bcb9290df3d43200384ffbb851c27b0c0d346fb28fe7cb3d4d49d3","sha256:dce6e42db01c89c0af363f73776ea463db39ee1d5ed25ab7c95b88de3d11283d"],"state_sha256":"a191fafd3ba6d39ec5aa901d6525502de86814869e05d21dffa2e35008804f52"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hM6+UZkuroosB2ZCO1SBbcO+IbL13VI1t5WqHE/gq84nrIbyB0fdVOyGmGbwuXHFiLuP3BBjf5QuGx3VidGYBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-29T03:36:24.507956Z","bundle_sha256":"79474d49c639a904319fba2048b95bfc55f47e6845be1ea374a629552ca09f1d"}}