{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:MQ2KZL3RTR4UDWPSPCZ3XEYXYU","short_pith_number":"pith:MQ2KZL3R","canonical_record":{"source":{"id":"1803.08999","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-03-23T22:25:52Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"8c680b82b704bbbc18b3adcfd7cec0e01ab5b8b95e9ea1598fb23131a401e62a","abstract_canon_sha256":"7b0d33a8324753efb88ba86e7928744e2d2b6bb8d4d0f7f1a8ac3bbbb6bf09e9"},"schema_version":"1.0"},"canonical_sha256":"6434acaf719c7941d9f278b3bb9317c52cb272545410e97785a726ebef04aa0e","source":{"kind":"arxiv","id":"1803.08999","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.08999","created_at":"2026-05-18T00:20:12Z"},{"alias_kind":"arxiv_version","alias_value":"1803.08999v1","created_at":"2026-05-18T00:20:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.08999","created_at":"2026-05-18T00:20:12Z"},{"alias_kind":"pith_short_12","alias_value":"MQ2KZL3RTR4U","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MQ2KZL3RTR4UDWPS","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MQ2KZL3R","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:MQ2KZL3RTR4UDWPSPCZ3XEYXYU","target":"record","payload":{"canonical_record":{"source":{"id":"1803.08999","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-03-23T22:25:52Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"8c680b82b704bbbc18b3adcfd7cec0e01ab5b8b95e9ea1598fb23131a401e62a","abstract_canon_sha256":"7b0d33a8324753efb88ba86e7928744e2d2b6bb8d4d0f7f1a8ac3bbbb6bf09e9"},"schema_version":"1.0"},"canonical_sha256":"6434acaf719c7941d9f278b3bb9317c52cb272545410e97785a726ebef04aa0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:20:12.968163Z","signature_b64":"XgX47KPUPutmifO+q6SUE9NbGRO2b0ZRONdMquI3TEVFZrQxX1dHcNv09xnq75z5oiYsKOMq7tQcnvCQWRLjAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6434acaf719c7941d9f278b3bb9317c52cb272545410e97785a726ebef04aa0e","last_reissued_at":"2026-05-18T00:20:12.967528Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:20:12.967528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.08999","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":"2026-05-18T00:20:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2cLBHVAXU2SqZb9XW4/MlAgmQE9wOSrmBE9dJc5JaLGcVmoQgDCHCFedVhSFsZoiYao14ZN9jSici8FsxNNtAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T02:16:26.932037Z"},"content_sha256":"35bcc75c9ba468557247e3b2bc0180c2ba4a00e34ff4684401fb2f948d3effc4","schema_version":"1.0","event_id":"sha256:35bcc75c9ba468557247e3b2bc0180c2ba4a00e34ff4684401fb2f948d3effc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:MQ2KZL3RTR4UDWPSPCZ3XEYXYU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"LayoutNet: Reconstructing the 3D Room Layout from a Single RGB Image","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CV","authors_text":"Alex Colburn, Chuhang Zou, Derek Hoiem, Qi Shan","submitted_at":"2018-03-23T22:25:52Z","abstract_excerpt":"We propose an algorithm to predict room layout from a single image that generalizes across panoramas and perspective images, cuboid layouts and more general layouts (e.g. L-shape room). Our method operates directly on the panoramic image, rather than decomposing into perspective images as do recent works. Our network architecture is similar to that of RoomNet, but we show improvements due to aligning the image based on vanishing points, predicting multiple layout elements (corners, boundaries, size and translation), and fitting a constrained Manhattan layout to the resulting predictions. Our m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.08999","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":"2026-05-18T00:20:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w3nxjSaee+/+ERHMmJax++wZ/piyOtqDTsoLxubwddmO3Hr/EmEMiyCVBDkwW5ORCHRpN5/tGjJky80ldyqqBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T02:16:26.932387Z"},"content_sha256":"e57dacbc6a66a7fa86efd27f8b02955f56c54747c0465473498c507be04d5963","schema_version":"1.0","event_id":"sha256:e57dacbc6a66a7fa86efd27f8b02955f56c54747c0465473498c507be04d5963"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MQ2KZL3RTR4UDWPSPCZ3XEYXYU/bundle.json","state_url":"https://pith.science/pith/MQ2KZL3RTR4UDWPSPCZ3XEYXYU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MQ2KZL3RTR4UDWPSPCZ3XEYXYU/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":"2026-07-05T02:16:26Z","links":{"resolver":"https://pith.science/pith/MQ2KZL3RTR4UDWPSPCZ3XEYXYU","bundle":"https://pith.science/pith/MQ2KZL3RTR4UDWPSPCZ3XEYXYU/bundle.json","state":"https://pith.science/pith/MQ2KZL3RTR4UDWPSPCZ3XEYXYU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MQ2KZL3RTR4UDWPSPCZ3XEYXYU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MQ2KZL3RTR4UDWPSPCZ3XEYXYU","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":"7b0d33a8324753efb88ba86e7928744e2d2b6bb8d4d0f7f1a8ac3bbbb6bf09e9","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-03-23T22:25:52Z","title_canon_sha256":"8c680b82b704bbbc18b3adcfd7cec0e01ab5b8b95e9ea1598fb23131a401e62a"},"schema_version":"1.0","source":{"id":"1803.08999","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.08999","created_at":"2026-05-18T00:20:12Z"},{"alias_kind":"arxiv_version","alias_value":"1803.08999v1","created_at":"2026-05-18T00:20:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.08999","created_at":"2026-05-18T00:20:12Z"},{"alias_kind":"pith_short_12","alias_value":"MQ2KZL3RTR4U","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MQ2KZL3RTR4UDWPS","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MQ2KZL3R","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:e57dacbc6a66a7fa86efd27f8b02955f56c54747c0465473498c507be04d5963","target":"graph","created_at":"2026-05-18T00:20:12Z","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 propose an algorithm to predict room layout from a single image that generalizes across panoramas and perspective images, cuboid layouts and more general layouts (e.g. L-shape room). Our method operates directly on the panoramic image, rather than decomposing into perspective images as do recent works. Our network architecture is similar to that of RoomNet, but we show improvements due to aligning the image based on vanishing points, predicting multiple layout elements (corners, boundaries, size and translation), and fitting a constrained Manhattan layout to the resulting predictions. Our m","authors_text":"Alex Colburn, Chuhang Zou, Derek Hoiem, Qi Shan","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-03-23T22:25:52Z","title":"LayoutNet: Reconstructing the 3D Room Layout from a Single RGB Image"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.08999","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":"sha256:35bcc75c9ba468557247e3b2bc0180c2ba4a00e34ff4684401fb2f948d3effc4","target":"record","created_at":"2026-05-18T00:20:12Z","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":"7b0d33a8324753efb88ba86e7928744e2d2b6bb8d4d0f7f1a8ac3bbbb6bf09e9","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-03-23T22:25:52Z","title_canon_sha256":"8c680b82b704bbbc18b3adcfd7cec0e01ab5b8b95e9ea1598fb23131a401e62a"},"schema_version":"1.0","source":{"id":"1803.08999","kind":"arxiv","version":1}},"canonical_sha256":"6434acaf719c7941d9f278b3bb9317c52cb272545410e97785a726ebef04aa0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6434acaf719c7941d9f278b3bb9317c52cb272545410e97785a726ebef04aa0e","first_computed_at":"2026-05-18T00:20:12.967528Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:12.967528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XgX47KPUPutmifO+q6SUE9NbGRO2b0ZRONdMquI3TEVFZrQxX1dHcNv09xnq75z5oiYsKOMq7tQcnvCQWRLjAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:12.968163Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.08999","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35bcc75c9ba468557247e3b2bc0180c2ba4a00e34ff4684401fb2f948d3effc4","sha256:e57dacbc6a66a7fa86efd27f8b02955f56c54747c0465473498c507be04d5963"],"state_sha256":"0263b905bf2bcb999a3f83a6119a2124efa440c914c5d4253e8f390ced91b4b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rfKyxTvB8pX6yApFDrkgdULkPxvpqS62Wnb19OK6SYUEyoO9g9z2F3DP7dJq0ndc9DJBEbojfmtxD+KTTPW9AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T02:16:26.934379Z","bundle_sha256":"becc1d65ac03e62877c130151c3a1901dda57cb91900f5e7111a99b023c38403"}}