{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:E5PFX7UUFRZY46MJ6CWYYSV46B","short_pith_number":"pith:E5PFX7UU","canonical_record":{"source":{"id":"2601.14079","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-01-20T15:38:02Z","cross_cats_sorted":[],"title_canon_sha256":"8f9f1ec9942feef44ce690a67fed60fe84c97fc9dfc1d91e437038de115ff75f","abstract_canon_sha256":"80a7bf3e38b6b8e99a1bc1937cb7d4c091abfa987c0b423da32cd43faad1432d"},"schema_version":"1.0"},"canonical_sha256":"275e5bfe942c738e7989f0ad8c4abcf07a8826f0e5fe7078ce45995dfb313bae","source":{"kind":"arxiv","id":"2601.14079","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.14079","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"arxiv_version","alias_value":"2601.14079v2","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.14079","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"pith_short_12","alias_value":"E5PFX7UUFRZY","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"pith_short_16","alias_value":"E5PFX7UUFRZY46MJ","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"pith_short_8","alias_value":"E5PFX7UU","created_at":"2026-06-25T01:17:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:E5PFX7UUFRZY46MJ6CWYYSV46B","target":"record","payload":{"canonical_record":{"source":{"id":"2601.14079","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-01-20T15:38:02Z","cross_cats_sorted":[],"title_canon_sha256":"8f9f1ec9942feef44ce690a67fed60fe84c97fc9dfc1d91e437038de115ff75f","abstract_canon_sha256":"80a7bf3e38b6b8e99a1bc1937cb7d4c091abfa987c0b423da32cd43faad1432d"},"schema_version":"1.0"},"canonical_sha256":"275e5bfe942c738e7989f0ad8c4abcf07a8826f0e5fe7078ce45995dfb313bae","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-25T01:17:49.398944Z","signature_b64":"jWEhRm5iQ5zbaiyUmkxLHeQD+6r7dSw/nhejoNf3cwlVY5A3UArj7LBewaAz8wUvNiEU884G8qj4j+Z9hAJBBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"275e5bfe942c738e7989f0ad8c4abcf07a8826f0e5fe7078ce45995dfb313bae","last_reissued_at":"2026-06-25T01:17:49.398468Z","signature_status":"signed_v1","first_computed_at":"2026-06-25T01:17:49.398468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2601.14079","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":"2026-06-25T01:17:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zVf+EPUirulvEcxAX/E6wVSuqHewOqoiVcOzZvoO64FqmSg1aPTIhp+Rnlg0evk8tLDISPmoJ1Qgyjs5UMEFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T01:11:22.213707Z"},"content_sha256":"5235721cf8ae37b9661f6b9cdeaf9f571526394c04e94a631d0d361422f9658d","schema_version":"1.0","event_id":"sha256:5235721cf8ae37b9661f6b9cdeaf9f571526394c04e94a631d0d361422f9658d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:E5PFX7UUFRZY46MJ6CWYYSV46B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VENI: Variational Encoder for Natural Illumination","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Andreea Ardelean, Bernhard Egger, James A. D. Gardner, Paul Walker, William A. P. Smith","submitted_at":"2026-01-20T15:38:02Z","abstract_excerpt":"Inverse rendering is an ill-posed problem, but priors such as illumination priors can help simplify it. Existing work either disregards the spherical and rotation-equivariant nature of illumination environments or does not provide a well-behaved latent space. We propose a rotation-equivariant variational autoencoder that models natural illumination on the sphere without relying on 2D projections. To preserve the SO(2)-equivariance of environment maps, we use a novel Vector Neuron Vision Transformer (VN-ViT) as encoder and a rotation-equivariant conditional neural field as decoder. In the encod"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.14079","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/2601.14079/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":"2026-06-25T01:17:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tQ3eYPOTGYkOa9Y3293OVOz6J7jNvz1E4+jMRuSvOYzNpQCc1mFho12lTSJ0JkVKlX258EPSDwgXBX0k66ldAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T01:11:22.214073Z"},"content_sha256":"fbce841340b1665c57e88481428d2f3633a59cb42889b8fb8df7a82e46432d49","schema_version":"1.0","event_id":"sha256:fbce841340b1665c57e88481428d2f3633a59cb42889b8fb8df7a82e46432d49"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E5PFX7UUFRZY46MJ6CWYYSV46B/bundle.json","state_url":"https://pith.science/pith/E5PFX7UUFRZY46MJ6CWYYSV46B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E5PFX7UUFRZY46MJ6CWYYSV46B/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":"2026-07-14T01:11:22Z","links":{"resolver":"https://pith.science/pith/E5PFX7UUFRZY46MJ6CWYYSV46B","bundle":"https://pith.science/pith/E5PFX7UUFRZY46MJ6CWYYSV46B/bundle.json","state":"https://pith.science/pith/E5PFX7UUFRZY46MJ6CWYYSV46B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E5PFX7UUFRZY46MJ6CWYYSV46B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:E5PFX7UUFRZY46MJ6CWYYSV46B","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":"80a7bf3e38b6b8e99a1bc1937cb7d4c091abfa987c0b423da32cd43faad1432d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-01-20T15:38:02Z","title_canon_sha256":"8f9f1ec9942feef44ce690a67fed60fe84c97fc9dfc1d91e437038de115ff75f"},"schema_version":"1.0","source":{"id":"2601.14079","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.14079","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"arxiv_version","alias_value":"2601.14079v2","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.14079","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"pith_short_12","alias_value":"E5PFX7UUFRZY","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"pith_short_16","alias_value":"E5PFX7UUFRZY46MJ","created_at":"2026-06-25T01:17:49Z"},{"alias_kind":"pith_short_8","alias_value":"E5PFX7UU","created_at":"2026-06-25T01:17:49Z"}],"graph_snapshots":[{"event_id":"sha256:fbce841340b1665c57e88481428d2f3633a59cb42889b8fb8df7a82e46432d49","target":"graph","created_at":"2026-06-25T01:17:49Z","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/2601.14079/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Inverse rendering is an ill-posed problem, but priors such as illumination priors can help simplify it. Existing work either disregards the spherical and rotation-equivariant nature of illumination environments or does not provide a well-behaved latent space. We propose a rotation-equivariant variational autoencoder that models natural illumination on the sphere without relying on 2D projections. To preserve the SO(2)-equivariance of environment maps, we use a novel Vector Neuron Vision Transformer (VN-ViT) as encoder and a rotation-equivariant conditional neural field as decoder. In the encod","authors_text":"Andreea Ardelean, Bernhard Egger, James A. D. Gardner, Paul Walker, William A. P. Smith","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-01-20T15:38:02Z","title":"VENI: Variational Encoder for Natural Illumination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.14079","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":"sha256:5235721cf8ae37b9661f6b9cdeaf9f571526394c04e94a631d0d361422f9658d","target":"record","created_at":"2026-06-25T01:17:49Z","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":"80a7bf3e38b6b8e99a1bc1937cb7d4c091abfa987c0b423da32cd43faad1432d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-01-20T15:38:02Z","title_canon_sha256":"8f9f1ec9942feef44ce690a67fed60fe84c97fc9dfc1d91e437038de115ff75f"},"schema_version":"1.0","source":{"id":"2601.14079","kind":"arxiv","version":2}},"canonical_sha256":"275e5bfe942c738e7989f0ad8c4abcf07a8826f0e5fe7078ce45995dfb313bae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"275e5bfe942c738e7989f0ad8c4abcf07a8826f0e5fe7078ce45995dfb313bae","first_computed_at":"2026-06-25T01:17:49.398468Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-25T01:17:49.398468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jWEhRm5iQ5zbaiyUmkxLHeQD+6r7dSw/nhejoNf3cwlVY5A3UArj7LBewaAz8wUvNiEU884G8qj4j+Z9hAJBBQ==","signature_status":"signed_v1","signed_at":"2026-06-25T01:17:49.398944Z","signed_message":"canonical_sha256_bytes"},"source_id":"2601.14079","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5235721cf8ae37b9661f6b9cdeaf9f571526394c04e94a631d0d361422f9658d","sha256:fbce841340b1665c57e88481428d2f3633a59cb42889b8fb8df7a82e46432d49"],"state_sha256":"89d37806a133e05fa1ec4986b548104629e574906cdcb63ee656cfdcbf5e32c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VCuKd2m6SZdB9TrI/N3tXkh2Smg7WdeaiD/ocKM/751OZtJP/bRTIDMeq8RyXHqAM4PW0cCXMK0wDzRWTtFSAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-14T01:11:22.216090Z","bundle_sha256":"d6d339d8892dcd792ef924c6af259ebd9dfd9f7a1de149ffac8deac93b61ac69"}}