{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:P7SOIJJYXLFSDD5JP3WN2GJCE7","short_pith_number":"pith:P7SOIJJY","canonical_record":{"source":{"id":"1609.01329","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-09-05T21:12:34Z","cross_cats_sorted":[],"title_canon_sha256":"41d9b0679121ab3ad76f6ea43e4815177f9d865d38f3361e1afe73d10e5dcc94","abstract_canon_sha256":"67ef3b4c63ad42413a77ab73f8360dff85da31c908056f2c10f2593003ec292a"},"schema_version":"1.0"},"canonical_sha256":"7fe4e42538bacb218fa97eecdd192227cd7dd045a61e2613130b66a3a110925a","source":{"kind":"arxiv","id":"1609.01329","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01329","created_at":"2026-05-18T01:04:49Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01329v2","created_at":"2026-05-18T01:04:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01329","created_at":"2026-05-18T01:04:49Z"},{"alias_kind":"pith_short_12","alias_value":"P7SOIJJYXLFS","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"P7SOIJJYXLFSDD5J","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"P7SOIJJY","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:P7SOIJJYXLFSDD5JP3WN2GJCE7","target":"record","payload":{"canonical_record":{"source":{"id":"1609.01329","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-09-05T21:12:34Z","cross_cats_sorted":[],"title_canon_sha256":"41d9b0679121ab3ad76f6ea43e4815177f9d865d38f3361e1afe73d10e5dcc94","abstract_canon_sha256":"67ef3b4c63ad42413a77ab73f8360dff85da31c908056f2c10f2593003ec292a"},"schema_version":"1.0"},"canonical_sha256":"7fe4e42538bacb218fa97eecdd192227cd7dd045a61e2613130b66a3a110925a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:49.395036Z","signature_b64":"OFKhacrxTcfgcZ4CgP3gl7OAIiDagTP9Y5mi+j0ZTp4sUsDpFLzJv0kFnp2RtynTqCY9u9Y4Z6r3R+Wu+1mBCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7fe4e42538bacb218fa97eecdd192227cd7dd045a61e2613130b66a3a110925a","last_reissued_at":"2026-05-18T01:04:49.394633Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:49.394633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.01329","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":"2026-05-18T01:04:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iTMBYkb7uLaCOx43t3GK74ezfDYmjxiBmng1oNqUDukks/ROzGrJk5+7VuWfhP5EH3jFAjzvkFjbML+pu/gHCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T01:03:35.242909Z"},"content_sha256":"2fb65257b43379c9e47afbe97d971dcce8628e1dc76a4520c63ea98756cd9476","schema_version":"1.0","event_id":"sha256:2fb65257b43379c9e47afbe97d971dcce8628e1dc76a4520c63ea98756cd9476"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:P7SOIJJYXLFSDD5JP3WN2GJCE7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Depth Reconstruction and Computer-Aided Polyp Detection in Optical Colonoscopy Video Frames","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Arie Kaufman, Saad Nadeem","submitted_at":"2016-09-05T21:12:34Z","abstract_excerpt":"We present a computer-aided detection algorithm for polyps in optical colonoscopy images. Polyps are the precursors to colon cancer. In the US alone, more than 14 million optical colonoscopies are performed every year, mostly to screen for polyps. Optical colonoscopy has been shown to have an approximately 25% polyp miss rate due to the convoluted folds and bends present in the colon. In this work, we present an automatic detection algorithm to detect these polyps in the optical colonoscopy images. We use a machine learning algorithm to infer a depth map for a given optical colonoscopy image a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01329","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":""},"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":"2026-05-18T01:04:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oT5nuNeU4dHLqc27JeVyjxrHYPBZ54yKeECDph4tjpv25lmOp1uFSFKv8XbgVrcQ9ZOsXGEA1COSzZ6aAHb9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T01:03:35.243245Z"},"content_sha256":"e195e954d22a03ae1cf646a57903a233ca5140282ca6ab102266afebed1a53df","schema_version":"1.0","event_id":"sha256:e195e954d22a03ae1cf646a57903a233ca5140282ca6ab102266afebed1a53df"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P7SOIJJYXLFSDD5JP3WN2GJCE7/bundle.json","state_url":"https://pith.science/pith/P7SOIJJYXLFSDD5JP3WN2GJCE7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P7SOIJJYXLFSDD5JP3WN2GJCE7/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":"2026-06-23T01:03:35Z","links":{"resolver":"https://pith.science/pith/P7SOIJJYXLFSDD5JP3WN2GJCE7","bundle":"https://pith.science/pith/P7SOIJJYXLFSDD5JP3WN2GJCE7/bundle.json","state":"https://pith.science/pith/P7SOIJJYXLFSDD5JP3WN2GJCE7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P7SOIJJYXLFSDD5JP3WN2GJCE7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:P7SOIJJYXLFSDD5JP3WN2GJCE7","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":"67ef3b4c63ad42413a77ab73f8360dff85da31c908056f2c10f2593003ec292a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-09-05T21:12:34Z","title_canon_sha256":"41d9b0679121ab3ad76f6ea43e4815177f9d865d38f3361e1afe73d10e5dcc94"},"schema_version":"1.0","source":{"id":"1609.01329","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01329","created_at":"2026-05-18T01:04:49Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01329v2","created_at":"2026-05-18T01:04:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01329","created_at":"2026-05-18T01:04:49Z"},{"alias_kind":"pith_short_12","alias_value":"P7SOIJJYXLFS","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"P7SOIJJYXLFSDD5J","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"P7SOIJJY","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:e195e954d22a03ae1cf646a57903a233ca5140282ca6ab102266afebed1a53df","target":"graph","created_at":"2026-05-18T01:04:49Z","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":"We present a computer-aided detection algorithm for polyps in optical colonoscopy images. Polyps are the precursors to colon cancer. In the US alone, more than 14 million optical colonoscopies are performed every year, mostly to screen for polyps. Optical colonoscopy has been shown to have an approximately 25% polyp miss rate due to the convoluted folds and bends present in the colon. In this work, we present an automatic detection algorithm to detect these polyps in the optical colonoscopy images. We use a machine learning algorithm to infer a depth map for a given optical colonoscopy image a","authors_text":"Arie Kaufman, Saad Nadeem","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-09-05T21:12:34Z","title":"Depth Reconstruction and Computer-Aided Polyp Detection in Optical Colonoscopy Video Frames"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01329","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":"sha256:2fb65257b43379c9e47afbe97d971dcce8628e1dc76a4520c63ea98756cd9476","target":"record","created_at":"2026-05-18T01:04:49Z","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":"67ef3b4c63ad42413a77ab73f8360dff85da31c908056f2c10f2593003ec292a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-09-05T21:12:34Z","title_canon_sha256":"41d9b0679121ab3ad76f6ea43e4815177f9d865d38f3361e1afe73d10e5dcc94"},"schema_version":"1.0","source":{"id":"1609.01329","kind":"arxiv","version":2}},"canonical_sha256":"7fe4e42538bacb218fa97eecdd192227cd7dd045a61e2613130b66a3a110925a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7fe4e42538bacb218fa97eecdd192227cd7dd045a61e2613130b66a3a110925a","first_computed_at":"2026-05-18T01:04:49.394633Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:49.394633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OFKhacrxTcfgcZ4CgP3gl7OAIiDagTP9Y5mi+j0ZTp4sUsDpFLzJv0kFnp2RtynTqCY9u9Y4Z6r3R+Wu+1mBCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:49.395036Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.01329","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2fb65257b43379c9e47afbe97d971dcce8628e1dc76a4520c63ea98756cd9476","sha256:e195e954d22a03ae1cf646a57903a233ca5140282ca6ab102266afebed1a53df"],"state_sha256":"c67d2dd363637681db399ce29d6aa4b788d1ade1d17aa0f5feb467f5468a4a50"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RQ7CiNvQZNklZFu7uS9AxySX1vdWFE75CzR2mijlb+SRH5edpUcEpyjn3jeBc25G1XaSNwoHnK+KyhfmXOrHDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T01:03:35.245101Z","bundle_sha256":"0b4e4016e75533ae0ea9eea34de302c1a48215231f814ac706a2ada58fe1b3d0"}}