{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:EOT2UHS6NS7J2YEG3ZLJUFM3OU","short_pith_number":"pith:EOT2UHS6","canonical_record":{"source":{"id":"2505.01938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-03T22:21:06Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"72afb7a18edb9a5011bed82c3e0198675114b68925e9b28c0b7dc6d2c4208959","abstract_canon_sha256":"49f80e71dba745b24285a2784aeeb5c333e342deb43e2d30e955110ed25c847a"},"schema_version":"1.0"},"canonical_sha256":"23a7aa1e5e6cbe9d6086de569a159b753f7a273f43febed5174363243c20143e","source":{"kind":"arxiv","id":"2505.01938","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.01938","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"arxiv_version","alias_value":"2505.01938v1","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.01938","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"pith_short_12","alias_value":"EOT2UHS6NS7J","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"pith_short_16","alias_value":"EOT2UHS6NS7J2YEG","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"pith_short_8","alias_value":"EOT2UHS6","created_at":"2026-07-05T10:58:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:EOT2UHS6NS7J2YEG3ZLJUFM3OU","target":"record","payload":{"canonical_record":{"source":{"id":"2505.01938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-03T22:21:06Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"72afb7a18edb9a5011bed82c3e0198675114b68925e9b28c0b7dc6d2c4208959","abstract_canon_sha256":"49f80e71dba745b24285a2784aeeb5c333e342deb43e2d30e955110ed25c847a"},"schema_version":"1.0"},"canonical_sha256":"23a7aa1e5e6cbe9d6086de569a159b753f7a273f43febed5174363243c20143e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:58:28.784450Z","signature_b64":"I0GybhA/r0kVI8QiLLTQ10fyUImBatcRXZVTKH3JaU88Dn/tN7h2cdv4jgkfJO8/jVdbkKbxj0yIHTkdf929DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23a7aa1e5e6cbe9d6086de569a159b753f7a273f43febed5174363243c20143e","last_reissued_at":"2026-07-05T10:58:28.783916Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:58:28.783916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.01938","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":"2026-07-05T10:58:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XwXTfYi9xy8zZEVAMronvGkZwe+TlWDtf6OEu40BRxj5Q580G+eDm/9xY2NBVvO37B+yaX2w8EnqCYlF6HYmBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:41:11.715611Z"},"content_sha256":"c43ceae44220eae7db3fadab69ad656ac3e3e6ed4ca616c66748cf29a7732dd9","schema_version":"1.0","event_id":"sha256:c43ceae44220eae7db3fadab69ad656ac3e3e6ed4ca616c66748cf29a7732dd9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:EOT2UHS6NS7J2YEG3ZLJUFM3OU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HybridGS: High-Efficiency Gaussian Splatting Data Compression using Dual-Channel Sparse Representation and Point Cloud Encoder","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"cs.CV","authors_text":"Geert Van der Auwera, Le Yang, Qi Yang, Zhu Li","submitted_at":"2025-05-03T22:21:06Z","abstract_excerpt":"Most existing 3D Gaussian Splatting (3DGS) compression schemes focus on producing compact 3DGS representation via implicit data embedding. They have long coding times and highly customized data format, making it difficult for widespread deployment. This paper presents a new 3DGS compression framework called HybridGS, which takes advantage of both compact generation and standardized point cloud data encoding. HybridGS first generates compact and explicit 3DGS data. A dual-channel sparse representation is introduced to supervise the primitive position and feature bit depth. It then utilizes a ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.01938","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.01938/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":"2026-07-05T10:58:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jKYeipR1EvQug9IoP3xOy9IodJOCQRblEOKKRpJI2MO3pSRzU86jJNY9UemOT3Jjb9Kck6zToS4GtsKtvvecAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:41:11.716124Z"},"content_sha256":"b2f1d69070e269be4927206c2c02e7b2f38a2ebc84559308612fe15bd78b5b79","schema_version":"1.0","event_id":"sha256:b2f1d69070e269be4927206c2c02e7b2f38a2ebc84559308612fe15bd78b5b79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EOT2UHS6NS7J2YEG3ZLJUFM3OU/bundle.json","state_url":"https://pith.science/pith/EOT2UHS6NS7J2YEG3ZLJUFM3OU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EOT2UHS6NS7J2YEG3ZLJUFM3OU/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":"2026-07-07T15:41:11Z","links":{"resolver":"https://pith.science/pith/EOT2UHS6NS7J2YEG3ZLJUFM3OU","bundle":"https://pith.science/pith/EOT2UHS6NS7J2YEG3ZLJUFM3OU/bundle.json","state":"https://pith.science/pith/EOT2UHS6NS7J2YEG3ZLJUFM3OU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EOT2UHS6NS7J2YEG3ZLJUFM3OU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:EOT2UHS6NS7J2YEG3ZLJUFM3OU","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":"49f80e71dba745b24285a2784aeeb5c333e342deb43e2d30e955110ed25c847a","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-03T22:21:06Z","title_canon_sha256":"72afb7a18edb9a5011bed82c3e0198675114b68925e9b28c0b7dc6d2c4208959"},"schema_version":"1.0","source":{"id":"2505.01938","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.01938","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"arxiv_version","alias_value":"2505.01938v1","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.01938","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"pith_short_12","alias_value":"EOT2UHS6NS7J","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"pith_short_16","alias_value":"EOT2UHS6NS7J2YEG","created_at":"2026-07-05T10:58:28Z"},{"alias_kind":"pith_short_8","alias_value":"EOT2UHS6","created_at":"2026-07-05T10:58:28Z"}],"graph_snapshots":[{"event_id":"sha256:b2f1d69070e269be4927206c2c02e7b2f38a2ebc84559308612fe15bd78b5b79","target":"graph","created_at":"2026-07-05T10:58:28Z","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/2505.01938/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Most existing 3D Gaussian Splatting (3DGS) compression schemes focus on producing compact 3DGS representation via implicit data embedding. They have long coding times and highly customized data format, making it difficult for widespread deployment. This paper presents a new 3DGS compression framework called HybridGS, which takes advantage of both compact generation and standardized point cloud data encoding. HybridGS first generates compact and explicit 3DGS data. A dual-channel sparse representation is introduced to supervise the primitive position and feature bit depth. It then utilizes a ca","authors_text":"Geert Van der Auwera, Le Yang, Qi Yang, Zhu Li","cross_cats":["eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-03T22:21:06Z","title":"HybridGS: High-Efficiency Gaussian Splatting Data Compression using Dual-Channel Sparse Representation and Point Cloud Encoder"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.01938","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:c43ceae44220eae7db3fadab69ad656ac3e3e6ed4ca616c66748cf29a7732dd9","target":"record","created_at":"2026-07-05T10:58:28Z","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":"49f80e71dba745b24285a2784aeeb5c333e342deb43e2d30e955110ed25c847a","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-03T22:21:06Z","title_canon_sha256":"72afb7a18edb9a5011bed82c3e0198675114b68925e9b28c0b7dc6d2c4208959"},"schema_version":"1.0","source":{"id":"2505.01938","kind":"arxiv","version":1}},"canonical_sha256":"23a7aa1e5e6cbe9d6086de569a159b753f7a273f43febed5174363243c20143e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23a7aa1e5e6cbe9d6086de569a159b753f7a273f43febed5174363243c20143e","first_computed_at":"2026-07-05T10:58:28.783916Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:58:28.783916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I0GybhA/r0kVI8QiLLTQ10fyUImBatcRXZVTKH3JaU88Dn/tN7h2cdv4jgkfJO8/jVdbkKbxj0yIHTkdf929DA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:58:28.784450Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.01938","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c43ceae44220eae7db3fadab69ad656ac3e3e6ed4ca616c66748cf29a7732dd9","sha256:b2f1d69070e269be4927206c2c02e7b2f38a2ebc84559308612fe15bd78b5b79"],"state_sha256":"75e61257688dfbb29203a033253285ebc46f0f6dfc493e9b8f7e907408a834bf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"90b/5M4N3824h6DET00G/pBbNyzfDljIT5SX47SDLAXHjZc4uGagOgzK3vzmIkhQS5ULZFKidzpB2YLG5clHBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:41:11.718365Z","bundle_sha256":"b53eb3d370677b6bcc277ec600122277ce2258231bbd7401410db0ab78be40b5"}}