{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:CKEM6YLYRGLFXRCEKHA6FF23FQ","short_pith_number":"pith:CKEM6YLY","canonical_record":{"source":{"id":"2508.09681","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-08-13T10:20:24Z","cross_cats_sorted":["cs.AI","cs.RO"],"title_canon_sha256":"1da934f8d29ecf439fe49541e27de0f7e3ccb9c5b9e061ae4a6fc5e461e8ce97","abstract_canon_sha256":"2aef3b7c2425f0b430adfa084245413459f3871fff58ad12e904790351682d8b"},"schema_version":"1.0"},"canonical_sha256":"1288cf617889965bc44451c1e2975b2c187e9bbe96ca973079d6e09974385587","source":{"kind":"arxiv","id":"2508.09681","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.09681","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"arxiv_version","alias_value":"2508.09681v1","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.09681","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_12","alias_value":"CKEM6YLYRGLF","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_16","alias_value":"CKEM6YLYRGLFXRCE","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_8","alias_value":"CKEM6YLY","created_at":"2026-07-05T11:53:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:CKEM6YLYRGLFXRCEKHA6FF23FQ","target":"record","payload":{"canonical_record":{"source":{"id":"2508.09681","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-08-13T10:20:24Z","cross_cats_sorted":["cs.AI","cs.RO"],"title_canon_sha256":"1da934f8d29ecf439fe49541e27de0f7e3ccb9c5b9e061ae4a6fc5e461e8ce97","abstract_canon_sha256":"2aef3b7c2425f0b430adfa084245413459f3871fff58ad12e904790351682d8b"},"schema_version":"1.0"},"canonical_sha256":"1288cf617889965bc44451c1e2975b2c187e9bbe96ca973079d6e09974385587","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:53:19.813142Z","signature_b64":"7EKqg5D68s3jtNCGVOBLb2SYkI/DR0lWCN0zkSJpEEhiWRLuH9oBy/fZ2bFi4b2g+WDXuquXRKtavqM3p7i1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1288cf617889965bc44451c1e2975b2c187e9bbe96ca973079d6e09974385587","last_reissued_at":"2026-07-05T11:53:19.812633Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:53:19.812633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.09681","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":"2026-07-05T11:53:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AAgR6tg+NxEVtueNYzfqJf1cr8r/6BdcaVw2DbNsvJkoRs+2niLpWrUjvIqfokw6oMTkguj6TaNwYTGtz8c8BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T12:26:04.369746Z"},"content_sha256":"f0e483941a7374200db5eee13fa5fae10c6bef6a5ac7376a027ec528e6b5799a","schema_version":"1.0","event_id":"sha256:f0e483941a7374200db5eee13fa5fae10c6bef6a5ac7376a027ec528e6b5799a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:CKEM6YLYRGLFXRCEKHA6FF23FQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surg-InvNeRF: Invertible NeRF for 3D tracking and reconstruction in surgical vision","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cs.AI","cs.RO"],"primary_cat":"cs.CV","authors_text":"Dominic Jones, Gerardo Loza, Junlei Hu, Pietro Valdastri, Sharib Ali","submitted_at":"2025-08-13T10:20:24Z","abstract_excerpt":"We proposed a novel test-time optimisation (TTO) approach framed by a NeRF-based architecture for long-term 3D point tracking. Most current methods in point tracking struggle to obtain consistent motion or are limited to 2D motion. TTO approaches frame the solution for long-term tracking as optimising a function that aggregates correspondences from other specialised state-of-the-art methods. Unlike the state-of-the-art on TTO, we propose parametrising such a function with our new invertible Neural Radiance Field (InvNeRF) architecture to perform both 2D and 3D tracking in surgical scenarios. O"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.09681","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/2508.09681/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":"2026-07-05T11:53:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P/CJtN5uEXzp1kbWBP2B0khgM+8vWL4rtwFcF8osqOurc2C0pcWRBi65ut4yqN8APCq6Go/atN2w+LC7ICBvAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T12:26:04.370240Z"},"content_sha256":"fc2fdaa48f0d664fcd50ca721f8e405f6803af564cfe4cfcf99d2db2bac282fe","schema_version":"1.0","event_id":"sha256:fc2fdaa48f0d664fcd50ca721f8e405f6803af564cfe4cfcf99d2db2bac282fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CKEM6YLYRGLFXRCEKHA6FF23FQ/bundle.json","state_url":"https://pith.science/pith/CKEM6YLYRGLFXRCEKHA6FF23FQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CKEM6YLYRGLFXRCEKHA6FF23FQ/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":"2026-08-06T12:26:04Z","links":{"resolver":"https://pith.science/pith/CKEM6YLYRGLFXRCEKHA6FF23FQ","bundle":"https://pith.science/pith/CKEM6YLYRGLFXRCEKHA6FF23FQ/bundle.json","state":"https://pith.science/pith/CKEM6YLYRGLFXRCEKHA6FF23FQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CKEM6YLYRGLFXRCEKHA6FF23FQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CKEM6YLYRGLFXRCEKHA6FF23FQ","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":"2aef3b7c2425f0b430adfa084245413459f3871fff58ad12e904790351682d8b","cross_cats_sorted":["cs.AI","cs.RO"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-08-13T10:20:24Z","title_canon_sha256":"1da934f8d29ecf439fe49541e27de0f7e3ccb9c5b9e061ae4a6fc5e461e8ce97"},"schema_version":"1.0","source":{"id":"2508.09681","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.09681","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"arxiv_version","alias_value":"2508.09681v1","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.09681","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_12","alias_value":"CKEM6YLYRGLF","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_16","alias_value":"CKEM6YLYRGLFXRCE","created_at":"2026-07-05T11:53:19Z"},{"alias_kind":"pith_short_8","alias_value":"CKEM6YLY","created_at":"2026-07-05T11:53:19Z"}],"graph_snapshots":[{"event_id":"sha256:fc2fdaa48f0d664fcd50ca721f8e405f6803af564cfe4cfcf99d2db2bac282fe","target":"graph","created_at":"2026-07-05T11:53:19Z","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/2508.09681/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We proposed a novel test-time optimisation (TTO) approach framed by a NeRF-based architecture for long-term 3D point tracking. Most current methods in point tracking struggle to obtain consistent motion or are limited to 2D motion. TTO approaches frame the solution for long-term tracking as optimising a function that aggregates correspondences from other specialised state-of-the-art methods. Unlike the state-of-the-art on TTO, we propose parametrising such a function with our new invertible Neural Radiance Field (InvNeRF) architecture to perform both 2D and 3D tracking in surgical scenarios. O","authors_text":"Dominic Jones, Gerardo Loza, Junlei Hu, Pietro Valdastri, Sharib Ali","cross_cats":["cs.AI","cs.RO"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-08-13T10:20:24Z","title":"Surg-InvNeRF: Invertible NeRF for 3D tracking and reconstruction in surgical vision"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.09681","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:f0e483941a7374200db5eee13fa5fae10c6bef6a5ac7376a027ec528e6b5799a","target":"record","created_at":"2026-07-05T11:53:19Z","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":"2aef3b7c2425f0b430adfa084245413459f3871fff58ad12e904790351682d8b","cross_cats_sorted":["cs.AI","cs.RO"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2025-08-13T10:20:24Z","title_canon_sha256":"1da934f8d29ecf439fe49541e27de0f7e3ccb9c5b9e061ae4a6fc5e461e8ce97"},"schema_version":"1.0","source":{"id":"2508.09681","kind":"arxiv","version":1}},"canonical_sha256":"1288cf617889965bc44451c1e2975b2c187e9bbe96ca973079d6e09974385587","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1288cf617889965bc44451c1e2975b2c187e9bbe96ca973079d6e09974385587","first_computed_at":"2026-07-05T11:53:19.812633Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:53:19.812633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7EKqg5D68s3jtNCGVOBLb2SYkI/DR0lWCN0zkSJpEEhiWRLuH9oBy/fZ2bFi4b2g+WDXuquXRKtavqM3p7i1AA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:53:19.813142Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.09681","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0e483941a7374200db5eee13fa5fae10c6bef6a5ac7376a027ec528e6b5799a","sha256:fc2fdaa48f0d664fcd50ca721f8e405f6803af564cfe4cfcf99d2db2bac282fe"],"state_sha256":"83cebb5c3e1a676538f7b6829140d3c5fe6a207878c0f369f739ce9226ba7b54"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uwkj5I+5nnvZ8jzGPDkGUatHWTVhscRxhnyu96EbSFLERDEciZAVqsQNzpQ5fds5sqBXSRoirRtfh+ZYqmJ7Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T12:26:04.374139Z","bundle_sha256":"64f9bf94e5bb241ef7cf6e2dcb4c89c7c76f30efe1d34ff43c88e704746da1da"}}