{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:3XWWJFCWAELFOJWS56JVUNYWYE","short_pith_number":"pith:3XWWJFCW","canonical_record":{"source":{"id":"2405.16517","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-05-26T11:01:39Z","cross_cats_sorted":[],"title_canon_sha256":"182746628515f9ca826d9542a96b5299c8967e99e777f95f8db16847e936b3fb","abstract_canon_sha256":"b4acd35aaf88002350fc80cb1b1b0719ea0c922fb3cb65c0e967135fc79a6cc7"},"schema_version":"1.0"},"canonical_sha256":"dded64945601165726d2ef935a3716c13b540f763522738cb734d4e310bbda7b","source":{"kind":"arxiv","id":"2405.16517","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.16517","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"arxiv_version","alias_value":"2405.16517v2","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.16517","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"pith_short_12","alias_value":"3XWWJFCWAELF","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"pith_short_16","alias_value":"3XWWJFCWAELFOJWS","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"pith_short_8","alias_value":"3XWWJFCW","created_at":"2026-07-05T08:26:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:3XWWJFCWAELFOJWS56JVUNYWYE","target":"record","payload":{"canonical_record":{"source":{"id":"2405.16517","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-05-26T11:01:39Z","cross_cats_sorted":[],"title_canon_sha256":"182746628515f9ca826d9542a96b5299c8967e99e777f95f8db16847e936b3fb","abstract_canon_sha256":"b4acd35aaf88002350fc80cb1b1b0719ea0c922fb3cb65c0e967135fc79a6cc7"},"schema_version":"1.0"},"canonical_sha256":"dded64945601165726d2ef935a3716c13b540f763522738cb734d4e310bbda7b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:26:25.803005Z","signature_b64":"q4rSMVx4uL2UWPfhN6vE2QHcsZmT9J4vf1CrurTqb9yi6fBYsrY5UOIgs1UCbd9SXGQ0//tSR41SDPT6NHbNCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dded64945601165726d2ef935a3716c13b540f763522738cb734d4e310bbda7b","last_reissued_at":"2026-07-05T08:26:25.802531Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:26:25.802531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.16517","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:26:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kVllG98SR2GOBGhQhX1cJtr3/SApGiuV3oUsXfawqc4j61x+tT40R0zGf5WuBqAzGD3vflvMwPyyv+DS1Ki5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T18:15:44.284752Z"},"content_sha256":"5c66971fe94fd4693c471e636d869b62b15a6aa060e60057bd08a6379e78af82","schema_version":"1.0","event_id":"sha256:5c66971fe94fd4693c471e636d869b62b15a6aa060e60057bd08a6379e78af82"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:3XWWJFCWAELFOJWS56JVUNYWYE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sp2360: Sparse-view 360 Scene Reconstruction using Cascaded 2D Diffusion Priors","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Bernt Schiele, Christopher Wewer, Jan Eric Lenssen, Soumava Paul","submitted_at":"2024-05-26T11:01:39Z","abstract_excerpt":"We aim to tackle sparse-view reconstruction of a 360 3D scene using priors from latent diffusion models (LDM). The sparse-view setting is ill-posed and underconstrained, especially for scenes where the camera rotates 360 degrees around a point, as no visual information is available beyond some frontal views focused on the central object(s) of interest. In this work, we show that pretrained 2D diffusion models can strongly improve the reconstruction of a scene with low-cost fine-tuning. Specifically, we present SparseSplat360 (Sp2360), a method that employs a cascade of in-painting and artifact"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.16517","kind":"arxiv","version":2},"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/2405.16517/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":"2026-07-05T08:26:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jHxX6/A8JquawSZSPaHqcU7jggKdh3Gp4esC6HaN+DA6rsGjIGQ2XNYudEya/Glv+W5PPm19lE9l5jLY9RoJAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T18:15:44.285037Z"},"content_sha256":"a2744f477959eb6a0134a037445a91f28b8e974da709ac94fcfb7f0e82c0ea3b","schema_version":"1.0","event_id":"sha256:a2744f477959eb6a0134a037445a91f28b8e974da709ac94fcfb7f0e82c0ea3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3XWWJFCWAELFOJWS56JVUNYWYE/bundle.json","state_url":"https://pith.science/pith/3XWWJFCWAELFOJWS56JVUNYWYE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3XWWJFCWAELFOJWS56JVUNYWYE/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":"2026-07-31T18:15:44Z","links":{"resolver":"https://pith.science/pith/3XWWJFCWAELFOJWS56JVUNYWYE","bundle":"https://pith.science/pith/3XWWJFCWAELFOJWS56JVUNYWYE/bundle.json","state":"https://pith.science/pith/3XWWJFCWAELFOJWS56JVUNYWYE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3XWWJFCWAELFOJWS56JVUNYWYE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:3XWWJFCWAELFOJWS56JVUNYWYE","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":"b4acd35aaf88002350fc80cb1b1b0719ea0c922fb3cb65c0e967135fc79a6cc7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-05-26T11:01:39Z","title_canon_sha256":"182746628515f9ca826d9542a96b5299c8967e99e777f95f8db16847e936b3fb"},"schema_version":"1.0","source":{"id":"2405.16517","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.16517","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"arxiv_version","alias_value":"2405.16517v2","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.16517","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"pith_short_12","alias_value":"3XWWJFCWAELF","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"pith_short_16","alias_value":"3XWWJFCWAELFOJWS","created_at":"2026-07-05T08:26:25Z"},{"alias_kind":"pith_short_8","alias_value":"3XWWJFCW","created_at":"2026-07-05T08:26:25Z"}],"graph_snapshots":[{"event_id":"sha256:a2744f477959eb6a0134a037445a91f28b8e974da709ac94fcfb7f0e82c0ea3b","target":"graph","created_at":"2026-07-05T08:26:25Z","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/2405.16517/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We aim to tackle sparse-view reconstruction of a 360 3D scene using priors from latent diffusion models (LDM). The sparse-view setting is ill-posed and underconstrained, especially for scenes where the camera rotates 360 degrees around a point, as no visual information is available beyond some frontal views focused on the central object(s) of interest. In this work, we show that pretrained 2D diffusion models can strongly improve the reconstruction of a scene with low-cost fine-tuning. Specifically, we present SparseSplat360 (Sp2360), a method that employs a cascade of in-painting and artifact","authors_text":"Bernt Schiele, Christopher Wewer, Jan Eric Lenssen, Soumava Paul","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-05-26T11:01:39Z","title":"Sp2360: Sparse-view 360 Scene Reconstruction using Cascaded 2D Diffusion Priors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.16517","kind":"arxiv","version":2},"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":"sha256:5c66971fe94fd4693c471e636d869b62b15a6aa060e60057bd08a6379e78af82","target":"record","created_at":"2026-07-05T08:26:25Z","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":"b4acd35aaf88002350fc80cb1b1b0719ea0c922fb3cb65c0e967135fc79a6cc7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-05-26T11:01:39Z","title_canon_sha256":"182746628515f9ca826d9542a96b5299c8967e99e777f95f8db16847e936b3fb"},"schema_version":"1.0","source":{"id":"2405.16517","kind":"arxiv","version":2}},"canonical_sha256":"dded64945601165726d2ef935a3716c13b540f763522738cb734d4e310bbda7b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dded64945601165726d2ef935a3716c13b540f763522738cb734d4e310bbda7b","first_computed_at":"2026-07-05T08:26:25.802531Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:26:25.802531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q4rSMVx4uL2UWPfhN6vE2QHcsZmT9J4vf1CrurTqb9yi6fBYsrY5UOIgs1UCbd9SXGQ0//tSR41SDPT6NHbNCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:26:25.803005Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.16517","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c66971fe94fd4693c471e636d869b62b15a6aa060e60057bd08a6379e78af82","sha256:a2744f477959eb6a0134a037445a91f28b8e974da709ac94fcfb7f0e82c0ea3b"],"state_sha256":"82b9a875f5a7b2a7da65ad735887801a5c31800b39deb6032b286c67acc18c9d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q5zLDYqIpc8Mx8pg78Hzn5zYjT4FQpZVIapvmfsKRaJBaZ6xMvJmLDSgEkYWw/4ooKkvwz3W+H0oZv88zsM/AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T18:15:44.287995Z","bundle_sha256":"92f964ce1e467850586df853cff67cdbd9b659c6099db5b09687e7bfb1517471"}}