{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:GRCRJ4YN6QGBNHU4OP22O4IMEU","short_pith_number":"pith:GRCRJ4YN","canonical_record":{"source":{"id":"1502.07019","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2015-02-25T00:52:11Z","cross_cats_sorted":["cs.AI","cs.CV"],"title_canon_sha256":"1dcce2ab393b9f818894dcfc1fe8035fc329d3ecc801509b9164d0e978b16818","abstract_canon_sha256":"a4408c9dfc19c4f1e1f8162b7f7fd4610c05252d8ce3cdc2a8812335ae249804"},"schema_version":"1.0"},"canonical_sha256":"344514f30df40c169e9c73f5a7710c253c66fbe69fb1ecb0027146d9f57107ea","source":{"kind":"arxiv","id":"1502.07019","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07019","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07019v1","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07019","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"pith_short_12","alias_value":"GRCRJ4YN6QGB","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GRCRJ4YN6QGBNHU4","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GRCRJ4YN","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:GRCRJ4YN6QGBNHU4OP22O4IMEU","target":"record","payload":{"canonical_record":{"source":{"id":"1502.07019","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2015-02-25T00:52:11Z","cross_cats_sorted":["cs.AI","cs.CV"],"title_canon_sha256":"1dcce2ab393b9f818894dcfc1fe8035fc329d3ecc801509b9164d0e978b16818","abstract_canon_sha256":"a4408c9dfc19c4f1e1f8162b7f7fd4610c05252d8ce3cdc2a8812335ae249804"},"schema_version":"1.0"},"canonical_sha256":"344514f30df40c169e9c73f5a7710c253c66fbe69fb1ecb0027146d9f57107ea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:59:02.114752Z","signature_b64":"T8/xg2gw05BfQiIx/jwmxiw/leMMTkgJPynyMJg2s+goskwGRPqdEs6z7GEGjnTuUQfW2r09OEyiydbDYK/GDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"344514f30df40c169e9c73f5a7710c253c66fbe69fb1ecb0027146d9f57107ea","last_reissued_at":"2026-05-18T00:59:02.113536Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:59:02.113536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.07019","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":"2026-05-18T00:59:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I5ZCQrFEpyAX57/4EVeNG6FMrcMOt5DcSjQ2iHPQj0elZYCpbso3xyqpgGTuTzKbkkB0BlvvxffOqO0dPDaeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:47:55.961738Z"},"content_sha256":"b6ebc4d1dfdf390373c24c8ec57bcea2ec5a50a450e697a47386421699a71ce4","schema_version":"1.0","event_id":"sha256:b6ebc4d1dfdf390373c24c8ec57bcea2ec5a50a450e697a47386421699a71ce4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:GRCRJ4YN6QGBNHU4OP22O4IMEU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Building with Drones: Accurate 3D Facade Reconstruction using MAVs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.CV"],"primary_cat":"cs.RO","authors_text":"Christof Hoppe, Horst Bischof, Shreyansh Daftry","submitted_at":"2015-02-25T00:52:11Z","abstract_excerpt":"Automatic reconstruction of 3D models from images using multi-view Structure-from-Motion methods has been one of the most fruitful outcomes of computer vision. These advances combined with the growing popularity of Micro Aerial Vehicles as an autonomous imaging platform, have made 3D vision tools ubiquitous for large number of Architecture, Engineering and Construction applications among audiences, mostly unskilled in computer vision. However, to obtain high-resolution and accurate reconstructions from a large-scale object using SfM, there are many critical constraints on the quality of image "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07019","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":"2026-05-18T00:59:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PLYd8213bbHGNl/ITua+6PuXaD9pkvtN4Xn9rdtroVz8B6obPqBBJ7O5b7qe5oItDMqJji0XSsoTCRXOrLoIAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:47:55.962098Z"},"content_sha256":"6e00216e0f44705e74569891d372aa89fae250e12aca31ee0de4c5cf74e4ae7e","schema_version":"1.0","event_id":"sha256:6e00216e0f44705e74569891d372aa89fae250e12aca31ee0de4c5cf74e4ae7e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GRCRJ4YN6QGBNHU4OP22O4IMEU/bundle.json","state_url":"https://pith.science/pith/GRCRJ4YN6QGBNHU4OP22O4IMEU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GRCRJ4YN6QGBNHU4OP22O4IMEU/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":"2026-06-01T12:47:55Z","links":{"resolver":"https://pith.science/pith/GRCRJ4YN6QGBNHU4OP22O4IMEU","bundle":"https://pith.science/pith/GRCRJ4YN6QGBNHU4OP22O4IMEU/bundle.json","state":"https://pith.science/pith/GRCRJ4YN6QGBNHU4OP22O4IMEU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GRCRJ4YN6QGBNHU4OP22O4IMEU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:GRCRJ4YN6QGBNHU4OP22O4IMEU","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":"a4408c9dfc19c4f1e1f8162b7f7fd4610c05252d8ce3cdc2a8812335ae249804","cross_cats_sorted":["cs.AI","cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2015-02-25T00:52:11Z","title_canon_sha256":"1dcce2ab393b9f818894dcfc1fe8035fc329d3ecc801509b9164d0e978b16818"},"schema_version":"1.0","source":{"id":"1502.07019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07019","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07019v1","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07019","created_at":"2026-05-18T00:59:02Z"},{"alias_kind":"pith_short_12","alias_value":"GRCRJ4YN6QGB","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GRCRJ4YN6QGBNHU4","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GRCRJ4YN","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:6e00216e0f44705e74569891d372aa89fae250e12aca31ee0de4c5cf74e4ae7e","target":"graph","created_at":"2026-05-18T00:59:02Z","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":"Automatic reconstruction of 3D models from images using multi-view Structure-from-Motion methods has been one of the most fruitful outcomes of computer vision. These advances combined with the growing popularity of Micro Aerial Vehicles as an autonomous imaging platform, have made 3D vision tools ubiquitous for large number of Architecture, Engineering and Construction applications among audiences, mostly unskilled in computer vision. However, to obtain high-resolution and accurate reconstructions from a large-scale object using SfM, there are many critical constraints on the quality of image ","authors_text":"Christof Hoppe, Horst Bischof, Shreyansh Daftry","cross_cats":["cs.AI","cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2015-02-25T00:52:11Z","title":"Building with Drones: Accurate 3D Facade Reconstruction using MAVs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07019","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:b6ebc4d1dfdf390373c24c8ec57bcea2ec5a50a450e697a47386421699a71ce4","target":"record","created_at":"2026-05-18T00:59:02Z","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":"a4408c9dfc19c4f1e1f8162b7f7fd4610c05252d8ce3cdc2a8812335ae249804","cross_cats_sorted":["cs.AI","cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2015-02-25T00:52:11Z","title_canon_sha256":"1dcce2ab393b9f818894dcfc1fe8035fc329d3ecc801509b9164d0e978b16818"},"schema_version":"1.0","source":{"id":"1502.07019","kind":"arxiv","version":1}},"canonical_sha256":"344514f30df40c169e9c73f5a7710c253c66fbe69fb1ecb0027146d9f57107ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"344514f30df40c169e9c73f5a7710c253c66fbe69fb1ecb0027146d9f57107ea","first_computed_at":"2026-05-18T00:59:02.113536Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:02.113536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T8/xg2gw05BfQiIx/jwmxiw/leMMTkgJPynyMJg2s+goskwGRPqdEs6z7GEGjnTuUQfW2r09OEyiydbDYK/GDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:02.114752Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.07019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6ebc4d1dfdf390373c24c8ec57bcea2ec5a50a450e697a47386421699a71ce4","sha256:6e00216e0f44705e74569891d372aa89fae250e12aca31ee0de4c5cf74e4ae7e"],"state_sha256":"e3437f821a6ffbc1dd56269cf45d6bc988369b212efee9a49be70ac5a97ef766"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EJ1LwO9RxxSclGZgS56U+bhePr5UGO7NMLQZ9onhWiAhOA6PsXFDp5yU8jACvDkObPQc9uqr2rNesJXQPqxQBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T12:47:55.964039Z","bundle_sha256":"89b53a68abf41b7cf62c56681b349c22baff8ad6fed4dff06c98761c336fc21e"}}