{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:MDZBRXTWSFYAXVSNYKHFI54U4F","short_pith_number":"pith:MDZBRXTW","canonical_record":{"source":{"id":"2010.02281","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-05T18:47:04Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"f891ecc161b2e6d1a44d0160e8c2af81e5097543635834e724a25307f6303bc1","abstract_canon_sha256":"8a454462f1bd19b6d018bd029c8b228e287e966509f2f0402ea4493f06d9781e"},"schema_version":"1.0"},"canonical_sha256":"60f218de7691700bd64dc28e547794e14b8a7b757246ed6d40cbbd1e7b6ea573","source":{"kind":"arxiv","id":"2010.02281","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.02281","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"arxiv_version","alias_value":"2010.02281v2","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.02281","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"pith_short_12","alias_value":"MDZBRXTWSFYA","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"pith_short_16","alias_value":"MDZBRXTWSFYAXVSN","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"pith_short_8","alias_value":"MDZBRXTW","created_at":"2026-07-05T02:22:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:MDZBRXTWSFYAXVSNYKHFI54U4F","target":"record","payload":{"canonical_record":{"source":{"id":"2010.02281","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-05T18:47:04Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"f891ecc161b2e6d1a44d0160e8c2af81e5097543635834e724a25307f6303bc1","abstract_canon_sha256":"8a454462f1bd19b6d018bd029c8b228e287e966509f2f0402ea4493f06d9781e"},"schema_version":"1.0"},"canonical_sha256":"60f218de7691700bd64dc28e547794e14b8a7b757246ed6d40cbbd1e7b6ea573","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:22:57.148679Z","signature_b64":"tBua4p+IRd2bqIMFvc/WJV9oTXSbf7qsOW4aza7Jedgld2RIsx9IpFgGDxft7/szHch8JtvBGwTFUtNAFZsyDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"60f218de7691700bd64dc28e547794e14b8a7b757246ed6d40cbbd1e7b6ea573","last_reissued_at":"2026-07-05T02:22:57.148212Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:22:57.148212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.02281","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":"2026-07-05T02:22:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bx4+x5O4pWhQIgBKwkKm1zWNXrkx+WF+aT+BZkci08m+bO794K/+TtyLwhw2NDVXuBK3LKQ5a1u9w0z3/OOBDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:06:13.996836Z"},"content_sha256":"468297c4e9dfa2436e52e0541ef5e4eaa2a87f15ea97ee0b57a3de29b99f5910","schema_version":"1.0","event_id":"sha256:468297c4e9dfa2436e52e0541ef5e4eaa2a87f15ea97ee0b57a3de29b99f5910"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:MDZBRXTWSFYAXVSNYKHFI54U4F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Early Detection of Myocardial Infarction in Low-Quality Echocardiography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Aysen Degerli, Moncef Gabbouj, Morteza Zabihi, Rashid Mazhar, Ridha Hamila, Serkan Kiranyaz, Tahir Hamid","submitted_at":"2020-10-05T18:47:04Z","abstract_excerpt":"Myocardial infarction (MI), or commonly known as heart attack, is a life-threatening health problem worldwide from which 32.4 million people suffer each year. Early diagnosis and treatment of MI are crucial to prevent further heart tissue damages or death. The earliest and most reliable sign of ischemia is regional wall motion abnormality (RWMA) of the affected part of the ventricular muscle. Echocardiography can easily, inexpensively, and non-invasively exhibit the RWMA. In this article, we introduce a three-phase approach for early MI detection in low-quality echocardiography: 1) segmentatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.02281","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.02281/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":"2026-07-05T02:22:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oMM7MtFobx8cjQrxJDOAD+oIExCnraYGHUc2FjdY/J659rAERAFbWTHJzFsQGnHgpOrUjMhopaYO1wOiZuV/Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:06:13.997209Z"},"content_sha256":"e3d77d879e1e403938fb8843cd83643f395b97a90c41add48b6cb88e6f294b6c","schema_version":"1.0","event_id":"sha256:e3d77d879e1e403938fb8843cd83643f395b97a90c41add48b6cb88e6f294b6c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MDZBRXTWSFYAXVSNYKHFI54U4F/bundle.json","state_url":"https://pith.science/pith/MDZBRXTWSFYAXVSNYKHFI54U4F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MDZBRXTWSFYAXVSNYKHFI54U4F/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":"2026-07-07T11:06:13Z","links":{"resolver":"https://pith.science/pith/MDZBRXTWSFYAXVSNYKHFI54U4F","bundle":"https://pith.science/pith/MDZBRXTWSFYAXVSNYKHFI54U4F/bundle.json","state":"https://pith.science/pith/MDZBRXTWSFYAXVSNYKHFI54U4F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MDZBRXTWSFYAXVSNYKHFI54U4F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:MDZBRXTWSFYAXVSNYKHFI54U4F","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":"8a454462f1bd19b6d018bd029c8b228e287e966509f2f0402ea4493f06d9781e","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-05T18:47:04Z","title_canon_sha256":"f891ecc161b2e6d1a44d0160e8c2af81e5097543635834e724a25307f6303bc1"},"schema_version":"1.0","source":{"id":"2010.02281","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.02281","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"arxiv_version","alias_value":"2010.02281v2","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.02281","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"pith_short_12","alias_value":"MDZBRXTWSFYA","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"pith_short_16","alias_value":"MDZBRXTWSFYAXVSN","created_at":"2026-07-05T02:22:57Z"},{"alias_kind":"pith_short_8","alias_value":"MDZBRXTW","created_at":"2026-07-05T02:22:57Z"}],"graph_snapshots":[{"event_id":"sha256:e3d77d879e1e403938fb8843cd83643f395b97a90c41add48b6cb88e6f294b6c","target":"graph","created_at":"2026-07-05T02:22:57Z","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/2010.02281/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Myocardial infarction (MI), or commonly known as heart attack, is a life-threatening health problem worldwide from which 32.4 million people suffer each year. Early diagnosis and treatment of MI are crucial to prevent further heart tissue damages or death. The earliest and most reliable sign of ischemia is regional wall motion abnormality (RWMA) of the affected part of the ventricular muscle. Echocardiography can easily, inexpensively, and non-invasively exhibit the RWMA. In this article, we introduce a three-phase approach for early MI detection in low-quality echocardiography: 1) segmentatio","authors_text":"Aysen Degerli, Moncef Gabbouj, Morteza Zabihi, Rashid Mazhar, Ridha Hamila, Serkan Kiranyaz, Tahir Hamid","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-05T18:47:04Z","title":"Early Detection of Myocardial Infarction in Low-Quality Echocardiography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.02281","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":"sha256:468297c4e9dfa2436e52e0541ef5e4eaa2a87f15ea97ee0b57a3de29b99f5910","target":"record","created_at":"2026-07-05T02:22:57Z","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":"8a454462f1bd19b6d018bd029c8b228e287e966509f2f0402ea4493f06d9781e","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-05T18:47:04Z","title_canon_sha256":"f891ecc161b2e6d1a44d0160e8c2af81e5097543635834e724a25307f6303bc1"},"schema_version":"1.0","source":{"id":"2010.02281","kind":"arxiv","version":2}},"canonical_sha256":"60f218de7691700bd64dc28e547794e14b8a7b757246ed6d40cbbd1e7b6ea573","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60f218de7691700bd64dc28e547794e14b8a7b757246ed6d40cbbd1e7b6ea573","first_computed_at":"2026-07-05T02:22:57.148212Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:22:57.148212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tBua4p+IRd2bqIMFvc/WJV9oTXSbf7qsOW4aza7Jedgld2RIsx9IpFgGDxft7/szHch8JtvBGwTFUtNAFZsyDw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:22:57.148679Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.02281","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:468297c4e9dfa2436e52e0541ef5e4eaa2a87f15ea97ee0b57a3de29b99f5910","sha256:e3d77d879e1e403938fb8843cd83643f395b97a90c41add48b6cb88e6f294b6c"],"state_sha256":"f5a9c00e26cf05244f31de754f2a89a6c03b3405a9855f3ef1dcbe9356c66f11"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qywqvufWQ8ZkRF5Vd8kP1pWq3HT4ntEPs/Bgkt3kDnT+nODc9Yc1ZmHqM6HgluwnbLb/IsrZ2vYU8Ap4URO8Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:06:13.999459Z","bundle_sha256":"b448419d669f690a02656017db88d6fce929762103e1ee4bf4058d6641e03c55"}}