{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:DE7TSYAC6JMOX4UGOVIGAEUAQG","short_pith_number":"pith:DE7TSYAC","canonical_record":{"source":{"id":"1702.00582","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OH","submitted_at":"2017-02-02T08:44:54Z","cross_cats_sorted":[],"title_canon_sha256":"27e4215c97140eeb6f551c64d94dcacf0d3a201fdfba85692b8e7cc8f55355e6","abstract_canon_sha256":"10e0eda7821e22f9e4f8f2d6c2f525390b25022dfa0c50f7b68d627d1cfab952"},"schema_version":"1.0"},"canonical_sha256":"193f396002f258ebf286755060128081a5886d56659fb42ceec928892624f14e","source":{"kind":"arxiv","id":"1702.00582","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.00582","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"arxiv_version","alias_value":"1702.00582v1","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.00582","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"pith_short_12","alias_value":"DE7TSYAC6JMO","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"DE7TSYAC6JMOX4UG","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"DE7TSYAC","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:DE7TSYAC6JMOX4UGOVIGAEUAQG","target":"record","payload":{"canonical_record":{"source":{"id":"1702.00582","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OH","submitted_at":"2017-02-02T08:44:54Z","cross_cats_sorted":[],"title_canon_sha256":"27e4215c97140eeb6f551c64d94dcacf0d3a201fdfba85692b8e7cc8f55355e6","abstract_canon_sha256":"10e0eda7821e22f9e4f8f2d6c2f525390b25022dfa0c50f7b68d627d1cfab952"},"schema_version":"1.0"},"canonical_sha256":"193f396002f258ebf286755060128081a5886d56659fb42ceec928892624f14e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:33.189919Z","signature_b64":"FtiOl8iHf6Ly1CItoJSqZ+IW7xvkMONnDelrZGpVd3d3OJ2Zrel6AGroS9NaSfB+a3mSZDrS+eT4Ng5EFgwiCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"193f396002f258ebf286755060128081a5886d56659fb42ceec928892624f14e","last_reissued_at":"2026-05-18T00:51:33.189520Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:33.189520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.00582","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":"2026-05-18T00:51:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8sgN7k2Lu3r+uMuPekyjktD+gCWf5OQm+BYcTxxy0EQ6C+DrF/Ur2D1YRroO7QqXkk3LB7uMD5RzRcGrM9HuCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:18:26.356996Z"},"content_sha256":"b73f1621adf0764cb7f51932d99b77d71af03c9417a13aec1747b254b51e6f5a","schema_version":"1.0","event_id":"sha256:b73f1621adf0764cb7f51932d99b77d71af03c9417a13aec1747b254b51e6f5a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:DE7TSYAC6JMOX4UGOVIGAEUAQG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantitative Characterization of Components of Computer Assisted Interventions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.OH","authors_text":"Asli Okur, Hubertus Feussner, Nassir Navab, Ralf Stauder","submitted_at":"2017-02-02T08:44:54Z","abstract_excerpt":"Purpose: We propose a mathematical framework for quantitative analysis weighting the impact of heterogeneous components of a surgery. While multi-level approaches, surgical process modeling and other workflow analysis methods exist, this is to our knowledge the first quantitative approach. Methods: Inspired by the group decision making problem from the field of operational research, we define event impact factors, which combine independent and very diverse low-level functions. This allows us to rate surgical events by their importance. Results: We conducted surveys with 4 surgeons to determine"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.00582","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":""},"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":"2026-05-18T00:51:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4pjfHbN6vR0FJKJWTqL9J+7GGA/+0ri5omVPwzbfCAUidRCAZgGYtgJh/zABmHXo0L+us5jutMNkr+zxGAZsCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:18:26.357364Z"},"content_sha256":"dd77a7920c100ec91199e18b86404b22728bacada06f7678d792f5507f09f882","schema_version":"1.0","event_id":"sha256:dd77a7920c100ec91199e18b86404b22728bacada06f7678d792f5507f09f882"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DE7TSYAC6JMOX4UGOVIGAEUAQG/bundle.json","state_url":"https://pith.science/pith/DE7TSYAC6JMOX4UGOVIGAEUAQG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DE7TSYAC6JMOX4UGOVIGAEUAQG/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":"2026-05-31T08:18:26Z","links":{"resolver":"https://pith.science/pith/DE7TSYAC6JMOX4UGOVIGAEUAQG","bundle":"https://pith.science/pith/DE7TSYAC6JMOX4UGOVIGAEUAQG/bundle.json","state":"https://pith.science/pith/DE7TSYAC6JMOX4UGOVIGAEUAQG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DE7TSYAC6JMOX4UGOVIGAEUAQG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:DE7TSYAC6JMOX4UGOVIGAEUAQG","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":"10e0eda7821e22f9e4f8f2d6c2f525390b25022dfa0c50f7b68d627d1cfab952","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OH","submitted_at":"2017-02-02T08:44:54Z","title_canon_sha256":"27e4215c97140eeb6f551c64d94dcacf0d3a201fdfba85692b8e7cc8f55355e6"},"schema_version":"1.0","source":{"id":"1702.00582","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.00582","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"arxiv_version","alias_value":"1702.00582v1","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.00582","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"pith_short_12","alias_value":"DE7TSYAC6JMO","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"DE7TSYAC6JMOX4UG","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"DE7TSYAC","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:dd77a7920c100ec91199e18b86404b22728bacada06f7678d792f5507f09f882","target":"graph","created_at":"2026-05-18T00:51:33Z","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"},"paper":{"abstract_excerpt":"Purpose: We propose a mathematical framework for quantitative analysis weighting the impact of heterogeneous components of a surgery. While multi-level approaches, surgical process modeling and other workflow analysis methods exist, this is to our knowledge the first quantitative approach. Methods: Inspired by the group decision making problem from the field of operational research, we define event impact factors, which combine independent and very diverse low-level functions. This allows us to rate surgical events by their importance. Results: We conducted surveys with 4 surgeons to determine","authors_text":"Asli Okur, Hubertus Feussner, Nassir Navab, Ralf Stauder","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OH","submitted_at":"2017-02-02T08:44:54Z","title":"Quantitative Characterization of Components of Computer Assisted Interventions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.00582","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:b73f1621adf0764cb7f51932d99b77d71af03c9417a13aec1747b254b51e6f5a","target":"record","created_at":"2026-05-18T00:51:33Z","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":"10e0eda7821e22f9e4f8f2d6c2f525390b25022dfa0c50f7b68d627d1cfab952","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OH","submitted_at":"2017-02-02T08:44:54Z","title_canon_sha256":"27e4215c97140eeb6f551c64d94dcacf0d3a201fdfba85692b8e7cc8f55355e6"},"schema_version":"1.0","source":{"id":"1702.00582","kind":"arxiv","version":1}},"canonical_sha256":"193f396002f258ebf286755060128081a5886d56659fb42ceec928892624f14e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"193f396002f258ebf286755060128081a5886d56659fb42ceec928892624f14e","first_computed_at":"2026-05-18T00:51:33.189520Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:33.189520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FtiOl8iHf6Ly1CItoJSqZ+IW7xvkMONnDelrZGpVd3d3OJ2Zrel6AGroS9NaSfB+a3mSZDrS+eT4Ng5EFgwiCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:33.189919Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.00582","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b73f1621adf0764cb7f51932d99b77d71af03c9417a13aec1747b254b51e6f5a","sha256:dd77a7920c100ec91199e18b86404b22728bacada06f7678d792f5507f09f882"],"state_sha256":"adf56a21083eb5f68f7e980240dd401f42d22115436c427b96c8ac926d134ba5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nMqnlbTSHwNVthszYWZEX5t01whbyeRWKXHt9IEOusBchePvGQL59MLvKGdQHCvPpCoxUu3lQUwMfLzmgbYwBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T08:18:26.359495Z","bundle_sha256":"b0fe804b1f975e21e06e840a122459fc80c00748b97a8a6ea29b168381256e2f"}}