{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:HGJKL3T47AYLWQVPPCFYRXLLLU","short_pith_number":"pith:HGJKL3T4","canonical_record":{"source":{"id":"2607.03553","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-03T18:29:13Z","cross_cats_sorted":["cs.RO"],"title_canon_sha256":"322b88e883fdc110d587cc49a65553ee76abe77cf1ff3150884926eff15c9ebc","abstract_canon_sha256":"f62e2e870f236af168610d5c4867e3635f13071a023a7709bd00ef04dbf8bcd7"},"schema_version":"1.0"},"canonical_sha256":"3992a5ee7cf830bb42af788b88dd6b5d1b587a3c4b2c792c44726bcdff01a0d9","source":{"kind":"arxiv","id":"2607.03553","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.03553","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"arxiv_version","alias_value":"2607.03553v1","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.03553","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"pith_short_12","alias_value":"HGJKL3T47AYL","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"pith_short_16","alias_value":"HGJKL3T47AYLWQVP","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"pith_short_8","alias_value":"HGJKL3T4","created_at":"2026-07-07T02:17:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:HGJKL3T47AYLWQVPPCFYRXLLLU","target":"record","payload":{"canonical_record":{"source":{"id":"2607.03553","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-03T18:29:13Z","cross_cats_sorted":["cs.RO"],"title_canon_sha256":"322b88e883fdc110d587cc49a65553ee76abe77cf1ff3150884926eff15c9ebc","abstract_canon_sha256":"f62e2e870f236af168610d5c4867e3635f13071a023a7709bd00ef04dbf8bcd7"},"schema_version":"1.0"},"canonical_sha256":"3992a5ee7cf830bb42af788b88dd6b5d1b587a3c4b2c792c44726bcdff01a0d9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-07T02:17:53.494811Z","signature_b64":"3+lC+GOsKufTtK66fNh0VGlYduQkqaZBxJYbS8lmh5Y25Opx9YmedWXieYyQbiU8HMpg5ChAKyeFnWSEdjIzBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3992a5ee7cf830bb42af788b88dd6b5d1b587a3c4b2c792c44726bcdff01a0d9","last_reissued_at":"2026-07-07T02:17:53.493800Z","signature_status":"signed_v1","first_computed_at":"2026-07-07T02:17:53.493800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.03553","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":"2026-07-07T02:17:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aOoNMQ5qRYsSZHkyGdM5e0dCVl9PkRzmyfzsQQZOUZIhvjhh9OpvRNO2knlovqr5PmsaIplxjG+TGG+FTf5cAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T13:05:31.378649Z"},"content_sha256":"c650aa1955ff23539e94bb47586fe2f818ff7a34e0305d6193e380e1a834011f","schema_version":"1.0","event_id":"sha256:c650aa1955ff23539e94bb47586fe2f818ff7a34e0305d6193e380e1a834011f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:HGJKL3T47AYLWQVPPCFYRXLLLU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"iVISION-2DCD: A Long-Term Change Detection Dataset for Large-Scale Outdoor Construction Monitoring","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.RO"],"primary_cat":"cs.CV","authors_text":"Alexander Wong, Ashkan Ebadi, Dayou Mao, John Zelek, Yuchen Lin, Yuhao Chen","submitted_at":"2026-07-03T18:29:13Z","abstract_excerpt":"Automation in construction is essential for reducing costs and human errors in large-scale projects. We approach the construction progress monitoring from the aspect of detecting changes in construction sites. As construction buildings continue to evolve in geometry and appearance over time, change detection need to be performed from arbitrary camera viewpoints. This necessitates developing 2D Change Detection (2DCD) algorithms that operate robustly across diverse camera perspectives at construction sites. While developing and evaluating such systems is data-intensive, no open-source benchmark"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.03553","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/2607.03553/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":"2026-07-07T02:17:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"shjGcUAOdgd0wb8N+5tCM0cl05x5F81Wv6sdc05DJiljrJceluE/7FNgNddlShQI0YSn2LJldMAyt3SB3ev6Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T13:05:31.379016Z"},"content_sha256":"1d1610ae5eb78c43f1e85cf1d075bfa0c3f10bc024706a068f840aa1d2b9437d","schema_version":"1.0","event_id":"sha256:1d1610ae5eb78c43f1e85cf1d075bfa0c3f10bc024706a068f840aa1d2b9437d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HGJKL3T47AYLWQVPPCFYRXLLLU/bundle.json","state_url":"https://pith.science/pith/HGJKL3T47AYLWQVPPCFYRXLLLU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HGJKL3T47AYLWQVPPCFYRXLLLU/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":"2026-07-10T13:05:31Z","links":{"resolver":"https://pith.science/pith/HGJKL3T47AYLWQVPPCFYRXLLLU","bundle":"https://pith.science/pith/HGJKL3T47AYLWQVPPCFYRXLLLU/bundle.json","state":"https://pith.science/pith/HGJKL3T47AYLWQVPPCFYRXLLLU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HGJKL3T47AYLWQVPPCFYRXLLLU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:HGJKL3T47AYLWQVPPCFYRXLLLU","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":"f62e2e870f236af168610d5c4867e3635f13071a023a7709bd00ef04dbf8bcd7","cross_cats_sorted":["cs.RO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-03T18:29:13Z","title_canon_sha256":"322b88e883fdc110d587cc49a65553ee76abe77cf1ff3150884926eff15c9ebc"},"schema_version":"1.0","source":{"id":"2607.03553","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.03553","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"arxiv_version","alias_value":"2607.03553v1","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.03553","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"pith_short_12","alias_value":"HGJKL3T47AYL","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"pith_short_16","alias_value":"HGJKL3T47AYLWQVP","created_at":"2026-07-07T02:17:53Z"},{"alias_kind":"pith_short_8","alias_value":"HGJKL3T4","created_at":"2026-07-07T02:17:53Z"}],"graph_snapshots":[{"event_id":"sha256:1d1610ae5eb78c43f1e85cf1d075bfa0c3f10bc024706a068f840aa1d2b9437d","target":"graph","created_at":"2026-07-07T02:17:53Z","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/2607.03553/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Automation in construction is essential for reducing costs and human errors in large-scale projects. We approach the construction progress monitoring from the aspect of detecting changes in construction sites. As construction buildings continue to evolve in geometry and appearance over time, change detection need to be performed from arbitrary camera viewpoints. This necessitates developing 2D Change Detection (2DCD) algorithms that operate robustly across diverse camera perspectives at construction sites. While developing and evaluating such systems is data-intensive, no open-source benchmark","authors_text":"Alexander Wong, Ashkan Ebadi, Dayou Mao, John Zelek, Yuchen Lin, Yuhao Chen","cross_cats":["cs.RO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-03T18:29:13Z","title":"iVISION-2DCD: A Long-Term Change Detection Dataset for Large-Scale Outdoor Construction Monitoring"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.03553","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:c650aa1955ff23539e94bb47586fe2f818ff7a34e0305d6193e380e1a834011f","target":"record","created_at":"2026-07-07T02:17:53Z","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":"f62e2e870f236af168610d5c4867e3635f13071a023a7709bd00ef04dbf8bcd7","cross_cats_sorted":["cs.RO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-07-03T18:29:13Z","title_canon_sha256":"322b88e883fdc110d587cc49a65553ee76abe77cf1ff3150884926eff15c9ebc"},"schema_version":"1.0","source":{"id":"2607.03553","kind":"arxiv","version":1}},"canonical_sha256":"3992a5ee7cf830bb42af788b88dd6b5d1b587a3c4b2c792c44726bcdff01a0d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3992a5ee7cf830bb42af788b88dd6b5d1b587a3c4b2c792c44726bcdff01a0d9","first_computed_at":"2026-07-07T02:17:53.493800Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-07T02:17:53.493800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3+lC+GOsKufTtK66fNh0VGlYduQkqaZBxJYbS8lmh5Y25Opx9YmedWXieYyQbiU8HMpg5ChAKyeFnWSEdjIzBQ==","signature_status":"signed_v1","signed_at":"2026-07-07T02:17:53.494811Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.03553","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c650aa1955ff23539e94bb47586fe2f818ff7a34e0305d6193e380e1a834011f","sha256:1d1610ae5eb78c43f1e85cf1d075bfa0c3f10bc024706a068f840aa1d2b9437d"],"state_sha256":"689922788b4272e696bc669e65de9b483a915ecfa489b958908de48818e528d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fY2LBRgTKEBRhj5DchKnx8usN17YROpPGyfaN+IU4Hx40cetxauWkcXekDCX6IezN/sFPqYbrhsjJzo1iwR7DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-10T13:05:31.381193Z","bundle_sha256":"1135934b997b8f09a3bf23860f07b3786cd491f2ff6b5c116a290c57f46f37a1"}}