{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:EB4KYCMVPQLJ57K37MF4R6GLYL","short_pith_number":"pith:EB4KYCMV","canonical_record":{"source":{"id":"2305.02756","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-04T11:48:39Z","cross_cats_sorted":["cs.GR"],"title_canon_sha256":"185a959c484bf74f6f429b73e12f6feec1f772879fa8308dd7c4b58bfd38d5ad","abstract_canon_sha256":"4607254c3029c0349b442c690028357535ab0822d4819dce630a81d6f0f96f86"},"schema_version":"1.0"},"canonical_sha256":"2078ac09957c169efd5bfb0bc8f8cbc2e471e96dad7aca4f1dcfd9fa5f25bfe2","source":{"kind":"arxiv","id":"2305.02756","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.02756","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"arxiv_version","alias_value":"2305.02756v2","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.02756","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"pith_short_12","alias_value":"EB4KYCMVPQLJ","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"pith_short_16","alias_value":"EB4KYCMVPQLJ57K3","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"pith_short_8","alias_value":"EB4KYCMV","created_at":"2026-07-05T06:20:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:EB4KYCMVPQLJ57K37MF4R6GLYL","target":"record","payload":{"canonical_record":{"source":{"id":"2305.02756","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-04T11:48:39Z","cross_cats_sorted":["cs.GR"],"title_canon_sha256":"185a959c484bf74f6f429b73e12f6feec1f772879fa8308dd7c4b58bfd38d5ad","abstract_canon_sha256":"4607254c3029c0349b442c690028357535ab0822d4819dce630a81d6f0f96f86"},"schema_version":"1.0"},"canonical_sha256":"2078ac09957c169efd5bfb0bc8f8cbc2e471e96dad7aca4f1dcfd9fa5f25bfe2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:20:43.515885Z","signature_b64":"WX04JnpZOAq5X0p5pbtlRRCssvWMumXa37G6PsDool2G8rwvkSkLUlZgFFGAzENyWRIbd5zAMH5jzmpnjdIrBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2078ac09957c169efd5bfb0bc8f8cbc2e471e96dad7aca4f1dcfd9fa5f25bfe2","last_reissued_at":"2026-07-05T06:20:43.515415Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:20:43.515415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2305.02756","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":"2026-07-05T06:20:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I1z7aC8vyOTAB+OGbccQz0Dkl0DsQUf0GiLWvFkirkjoqyCC+c7HL3tLCdKqNL4JCVSBrfC8veCx1JPj8KSHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:38:16.640867Z"},"content_sha256":"66bdacb5bb60953911c08ae5d585a5746cd25361e6476eccea539172b7fac273","schema_version":"1.0","event_id":"sha256:66bdacb5bb60953911c08ae5d585a5746cd25361e6476eccea539172b7fac273"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:EB4KYCMVPQLJ57K37MF4R6GLYL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Floaters No More: Radiance Field Gradient Scaling for Improved Near-Camera Training","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.GR"],"primary_cat":"cs.CV","authors_text":"Julien Philip, Valentin Deschaintre","submitted_at":"2023-05-04T11:48:39Z","abstract_excerpt":"NeRF acquisition typically requires careful choice of near planes for the different cameras or suffers from background collapse, creating floating artifacts on the edges of the captured scene. The key insight of this work is that background collapse is caused by a higher density of samples in regions near cameras. As a result of this sampling imbalance, near-camera volumes receive significantly more gradients, leading to incorrect density buildup. We propose a gradient scaling approach to counter-balance this sampling imbalance, removing the need for near planes, while preventing background co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.02756","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/2305.02756/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":"2026-07-05T06:20:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3FJaRaJyhlhq2FYMOrvIYZhirYXbNqW6Ss5xs5sm1x9XDER+OL8EDzjeOKMiKTFubEKki0wpRF9cCCk8559oBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:38:16.641381Z"},"content_sha256":"2e992fa1cee4e2778bfb6506c8cdae1f8f982d77df98866915616f6360c6d7e3","schema_version":"1.0","event_id":"sha256:2e992fa1cee4e2778bfb6506c8cdae1f8f982d77df98866915616f6360c6d7e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EB4KYCMVPQLJ57K37MF4R6GLYL/bundle.json","state_url":"https://pith.science/pith/EB4KYCMVPQLJ57K37MF4R6GLYL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EB4KYCMVPQLJ57K37MF4R6GLYL/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":"2026-08-11T02:38:16Z","links":{"resolver":"https://pith.science/pith/EB4KYCMVPQLJ57K37MF4R6GLYL","bundle":"https://pith.science/pith/EB4KYCMVPQLJ57K37MF4R6GLYL/bundle.json","state":"https://pith.science/pith/EB4KYCMVPQLJ57K37MF4R6GLYL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EB4KYCMVPQLJ57K37MF4R6GLYL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:EB4KYCMVPQLJ57K37MF4R6GLYL","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":"4607254c3029c0349b442c690028357535ab0822d4819dce630a81d6f0f96f86","cross_cats_sorted":["cs.GR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-04T11:48:39Z","title_canon_sha256":"185a959c484bf74f6f429b73e12f6feec1f772879fa8308dd7c4b58bfd38d5ad"},"schema_version":"1.0","source":{"id":"2305.02756","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.02756","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"arxiv_version","alias_value":"2305.02756v2","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.02756","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"pith_short_12","alias_value":"EB4KYCMVPQLJ","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"pith_short_16","alias_value":"EB4KYCMVPQLJ57K3","created_at":"2026-07-05T06:20:43Z"},{"alias_kind":"pith_short_8","alias_value":"EB4KYCMV","created_at":"2026-07-05T06:20:43Z"}],"graph_snapshots":[{"event_id":"sha256:2e992fa1cee4e2778bfb6506c8cdae1f8f982d77df98866915616f6360c6d7e3","target":"graph","created_at":"2026-07-05T06:20:43Z","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/2305.02756/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"NeRF acquisition typically requires careful choice of near planes for the different cameras or suffers from background collapse, creating floating artifacts on the edges of the captured scene. The key insight of this work is that background collapse is caused by a higher density of samples in regions near cameras. As a result of this sampling imbalance, near-camera volumes receive significantly more gradients, leading to incorrect density buildup. We propose a gradient scaling approach to counter-balance this sampling imbalance, removing the need for near planes, while preventing background co","authors_text":"Julien Philip, Valentin Deschaintre","cross_cats":["cs.GR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-04T11:48:39Z","title":"Floaters No More: Radiance Field Gradient Scaling for Improved Near-Camera Training"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.02756","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":"sha256:66bdacb5bb60953911c08ae5d585a5746cd25361e6476eccea539172b7fac273","target":"record","created_at":"2026-07-05T06:20:43Z","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":"4607254c3029c0349b442c690028357535ab0822d4819dce630a81d6f0f96f86","cross_cats_sorted":["cs.GR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-04T11:48:39Z","title_canon_sha256":"185a959c484bf74f6f429b73e12f6feec1f772879fa8308dd7c4b58bfd38d5ad"},"schema_version":"1.0","source":{"id":"2305.02756","kind":"arxiv","version":2}},"canonical_sha256":"2078ac09957c169efd5bfb0bc8f8cbc2e471e96dad7aca4f1dcfd9fa5f25bfe2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2078ac09957c169efd5bfb0bc8f8cbc2e471e96dad7aca4f1dcfd9fa5f25bfe2","first_computed_at":"2026-07-05T06:20:43.515415Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:20:43.515415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WX04JnpZOAq5X0p5pbtlRRCssvWMumXa37G6PsDool2G8rwvkSkLUlZgFFGAzENyWRIbd5zAMH5jzmpnjdIrBw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:20:43.515885Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.02756","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66bdacb5bb60953911c08ae5d585a5746cd25361e6476eccea539172b7fac273","sha256:2e992fa1cee4e2778bfb6506c8cdae1f8f982d77df98866915616f6360c6d7e3"],"state_sha256":"5782eb0021b04ad7d4bea75a8b3d90825afb42e342a9ff8fdccc1bce9b7eee63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PnS5wYnF7iNl2UxxYqIzl7xfeE8axMyOcul0g5wroQPWXoo4n5qIErsFuHFlCntvuHgEz8s/Cxi+oT1WtQN8DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T02:38:16.646785Z","bundle_sha256":"0ba9447cc4014bf84710318aec1354cd2ac1b37c4e1de9b80d03d44f11cbc9ff"}}