{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:VW4LA3Z3OO5GSAYTSCQTXOBXBO","short_pith_number":"pith:VW4LA3Z3","canonical_record":{"source":{"id":"2304.01027","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2023-04-03T14:27:52Z","cross_cats_sorted":[],"title_canon_sha256":"740ba23cea82b37299f970d91716000273f6d7757803c6125e64459e2418627c","abstract_canon_sha256":"1f228555de9762820964d5dd216534e702af6ef42c22666279f1a125c0979dec"},"schema_version":"1.0"},"canonical_sha256":"adb8b06f3b73ba69031390a13bb8370ba142ae9918b2ebedcc4e96c132d03e95","source":{"kind":"arxiv","id":"2304.01027","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.01027","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"arxiv_version","alias_value":"2304.01027v1","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.01027","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"pith_short_12","alias_value":"VW4LA3Z3OO5G","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"pith_short_16","alias_value":"VW4LA3Z3OO5GSAYT","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"pith_short_8","alias_value":"VW4LA3Z3","created_at":"2026-07-05T05:57:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:VW4LA3Z3OO5GSAYTSCQTXOBXBO","target":"record","payload":{"canonical_record":{"source":{"id":"2304.01027","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2023-04-03T14:27:52Z","cross_cats_sorted":[],"title_canon_sha256":"740ba23cea82b37299f970d91716000273f6d7757803c6125e64459e2418627c","abstract_canon_sha256":"1f228555de9762820964d5dd216534e702af6ef42c22666279f1a125c0979dec"},"schema_version":"1.0"},"canonical_sha256":"adb8b06f3b73ba69031390a13bb8370ba142ae9918b2ebedcc4e96c132d03e95","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:57:25.685180Z","signature_b64":"mmO//11GASxpEaRavZOz4ZY9DVK5ViVVEAfr8t+jlCczlWLkG296xOQLcMn2biONbQwHAv4yaCKP+qSO0rccCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"adb8b06f3b73ba69031390a13bb8370ba142ae9918b2ebedcc4e96c132d03e95","last_reissued_at":"2026-07-05T05:57:25.684755Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:57:25.684755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.01027","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":"2026-07-05T05:57:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xhOVnEIRYhl3tlAiJtXZU2fkDyvBWM3tRKAJwzOuyNdfBA6UyDsE3uKzvTbwBMCPepMiIJHlNDUBdpz9YvjfCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T05:54:51.664757Z"},"content_sha256":"bae008981ba709948c5575889851d1104ba3cae4a768d76e5734e25007ab7e3a","schema_version":"1.0","event_id":"sha256:bae008981ba709948c5575889851d1104ba3cae4a768d76e5734e25007ab7e3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:VW4LA3Z3OO5GSAYTSCQTXOBXBO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Automated robotic intraoperative ultrasound for brain surgery","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.RO","authors_text":"Alexander Kirst, Alin Albu-Sch\\\"affer, Alistair Weld, Giulio Anichini, Julian Klodmann, Luke Dixon, Michael Dyck, Sophie Camp, Stamatia Giannarou","submitted_at":"2023-04-03T14:27:52Z","abstract_excerpt":"During brain tumour resection, localising cancerous tissue and delineating healthy and pathological borders is challenging, even for experienced neurosurgeons and neuroradiologists. Intraoperative imaging is commonly employed for determining and updating surgical plans in the operating room. Ultrasound (US) has presented itself a suitable tool for this task, owing to its ease of integration into the operating room and surgical procedure. However, widespread establishment of this tool has been limited because of the difficulty of anatomy localisation and data interpretation. In this work, we pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.01027","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/2304.01027/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":"2026-07-05T05:57:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pgm5MrMWHt0o9ZGv6Rq4JW/MdXvTFG0EPPfonwX38282QvJKnp6hI0qxBN+ksZBKpVdxqhaUwnRd/kJkYBMUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T05:54:51.665126Z"},"content_sha256":"2c6631228ce001a9e05c24a750dee1fdd6c8741b3b19e59730bbb220d4e2c7d9","schema_version":"1.0","event_id":"sha256:2c6631228ce001a9e05c24a750dee1fdd6c8741b3b19e59730bbb220d4e2c7d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VW4LA3Z3OO5GSAYTSCQTXOBXBO/bundle.json","state_url":"https://pith.science/pith/VW4LA3Z3OO5GSAYTSCQTXOBXBO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VW4LA3Z3OO5GSAYTSCQTXOBXBO/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":"2026-07-18T05:54:51Z","links":{"resolver":"https://pith.science/pith/VW4LA3Z3OO5GSAYTSCQTXOBXBO","bundle":"https://pith.science/pith/VW4LA3Z3OO5GSAYTSCQTXOBXBO/bundle.json","state":"https://pith.science/pith/VW4LA3Z3OO5GSAYTSCQTXOBXBO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VW4LA3Z3OO5GSAYTSCQTXOBXBO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:VW4LA3Z3OO5GSAYTSCQTXOBXBO","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":"1f228555de9762820964d5dd216534e702af6ef42c22666279f1a125c0979dec","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2023-04-03T14:27:52Z","title_canon_sha256":"740ba23cea82b37299f970d91716000273f6d7757803c6125e64459e2418627c"},"schema_version":"1.0","source":{"id":"2304.01027","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.01027","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"arxiv_version","alias_value":"2304.01027v1","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.01027","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"pith_short_12","alias_value":"VW4LA3Z3OO5G","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"pith_short_16","alias_value":"VW4LA3Z3OO5GSAYT","created_at":"2026-07-05T05:57:25Z"},{"alias_kind":"pith_short_8","alias_value":"VW4LA3Z3","created_at":"2026-07-05T05:57:25Z"}],"graph_snapshots":[{"event_id":"sha256:2c6631228ce001a9e05c24a750dee1fdd6c8741b3b19e59730bbb220d4e2c7d9","target":"graph","created_at":"2026-07-05T05:57:25Z","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/2304.01027/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"During brain tumour resection, localising cancerous tissue and delineating healthy and pathological borders is challenging, even for experienced neurosurgeons and neuroradiologists. Intraoperative imaging is commonly employed for determining and updating surgical plans in the operating room. Ultrasound (US) has presented itself a suitable tool for this task, owing to its ease of integration into the operating room and surgical procedure. However, widespread establishment of this tool has been limited because of the difficulty of anatomy localisation and data interpretation. In this work, we pr","authors_text":"Alexander Kirst, Alin Albu-Sch\\\"affer, Alistair Weld, Giulio Anichini, Julian Klodmann, Luke Dixon, Michael Dyck, Sophie Camp, Stamatia Giannarou","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2023-04-03T14:27:52Z","title":"Automated robotic intraoperative ultrasound for brain surgery"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.01027","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:bae008981ba709948c5575889851d1104ba3cae4a768d76e5734e25007ab7e3a","target":"record","created_at":"2026-07-05T05:57:25Z","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":"1f228555de9762820964d5dd216534e702af6ef42c22666279f1a125c0979dec","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2023-04-03T14:27:52Z","title_canon_sha256":"740ba23cea82b37299f970d91716000273f6d7757803c6125e64459e2418627c"},"schema_version":"1.0","source":{"id":"2304.01027","kind":"arxiv","version":1}},"canonical_sha256":"adb8b06f3b73ba69031390a13bb8370ba142ae9918b2ebedcc4e96c132d03e95","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"adb8b06f3b73ba69031390a13bb8370ba142ae9918b2ebedcc4e96c132d03e95","first_computed_at":"2026-07-05T05:57:25.684755Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:57:25.684755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mmO//11GASxpEaRavZOz4ZY9DVK5ViVVEAfr8t+jlCczlWLkG296xOQLcMn2biONbQwHAv4yaCKP+qSO0rccCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:57:25.685180Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.01027","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bae008981ba709948c5575889851d1104ba3cae4a768d76e5734e25007ab7e3a","sha256:2c6631228ce001a9e05c24a750dee1fdd6c8741b3b19e59730bbb220d4e2c7d9"],"state_sha256":"95f45479ee75a2d70e3c4254cb3782e492df12d0d6013841bb01bdeed03399f2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3XHqCxoBB0Fk0lReZlzgMcGAPLS0pNhb29L9IjJCyczJlHshJmAf29sXw+RM68Rt+PnVbiIKVMCvv9xoYKEvAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-18T05:54:51.667208Z","bundle_sha256":"7181d92927435ba04898f3fba18cbd115d19cdb4f7429f608c4ca82b00955ec3"}}