{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:GPVDPP7MYDX3MDXG54S7Q5RTH7","short_pith_number":"pith:GPVDPP7M","canonical_record":{"source":{"id":"2112.08075","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.LG","submitted_at":"2021-12-15T12:31:51Z","cross_cats_sorted":["q-bio.TO"],"title_canon_sha256":"4d681caf76aba4b9e997057fffbdaba89ba5cb8ccd464a63a884bdb82c42052a","abstract_canon_sha256":"3aaa319de4006df29f6a5cf998c5bc1a1e7d125413fc336d63425b8132cd577d"},"schema_version":"1.0"},"canonical_sha256":"33ea37bfecc0efb60ee6ef25f876333fd41bb5706bbe642240fe5af94240b4eb","source":{"kind":"arxiv","id":"2112.08075","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.08075","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"arxiv_version","alias_value":"2112.08075v2","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.08075","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"pith_short_12","alias_value":"GPVDPP7MYDX3","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"pith_short_16","alias_value":"GPVDPP7MYDX3MDXG","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"pith_short_8","alias_value":"GPVDPP7M","created_at":"2026-07-05T03:41:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:GPVDPP7MYDX3MDXG54S7Q5RTH7","target":"record","payload":{"canonical_record":{"source":{"id":"2112.08075","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.LG","submitted_at":"2021-12-15T12:31:51Z","cross_cats_sorted":["q-bio.TO"],"title_canon_sha256":"4d681caf76aba4b9e997057fffbdaba89ba5cb8ccd464a63a884bdb82c42052a","abstract_canon_sha256":"3aaa319de4006df29f6a5cf998c5bc1a1e7d125413fc336d63425b8132cd577d"},"schema_version":"1.0"},"canonical_sha256":"33ea37bfecc0efb60ee6ef25f876333fd41bb5706bbe642240fe5af94240b4eb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:41:28.770038Z","signature_b64":"pQGv+RvoSgb2mx9kGM3FiF7gON0ZECckaRY8sXHgAdNLon8WT6M78EVjmrTEXjIKdWqAgzwjbxlq+q3hT4rhBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33ea37bfecc0efb60ee6ef25f876333fd41bb5706bbe642240fe5af94240b4eb","last_reissued_at":"2026-07-05T03:41:28.769552Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:41:28.769552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.08075","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":"2026-07-05T03:41:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cUHT7lqZeiApzl4fyhjtQNYKB3ALRXzoNdjRPVwuMsVPkejwzxi7UoiV7AJyMltHhYiq0RkLVG2d05J/IVypAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-12T01:30:34.188928Z"},"content_sha256":"3e3e497dbc758d672e9d847c9a8a7e5b3f582bd8bf6a1ffff0dc1a35f38ce127","schema_version":"1.0","event_id":"sha256:3e3e497dbc758d672e9d847c9a8a7e5b3f582bd8bf6a1ffff0dc1a35f38ce127"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:GPVDPP7MYDX3MDXG54S7Q5RTH7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fast characterization of inducible regions of atrial fibrillation models with multi-fidelity Gaussian process classification","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["q-bio.TO"],"primary_cat":"cs.LG","authors_text":"Ali Gharaviri, Francisco Sahli Costabal, Lia Gander, Paris Perdikaris, Rolf Krause, Simone Pezzuto","submitted_at":"2021-12-15T12:31:51Z","abstract_excerpt":"Computational models of atrial fibrillation have successfully been used to predict optimal ablation sites. A critical step to assess the effect of an ablation pattern is to pace the model from different, potentially random, locations to determine whether arrhythmias can be induced in the atria. In this work, we propose to use multi-fidelity Gaussian process classification on Riemannian manifolds to efficiently determine the regions in the atria where arrhythmias are inducible. We build a probabilistic classifier that operates directly on the atrial surface. We take advantage of lower resolutio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.08075","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/2112.08075/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":"2026-07-05T03:41:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yzNMzPMKg/FELgh5BgEXht42Xxd8jznd3xithCXtYM4tGL+segFQV7tR8g4OC0BJ3PjmhOrBMpbl6KgO4nCnAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-12T01:30:34.189299Z"},"content_sha256":"86d130cc2800a2234113137ef08d7fc829b376eeabf6de294273336edbd07732","schema_version":"1.0","event_id":"sha256:86d130cc2800a2234113137ef08d7fc829b376eeabf6de294273336edbd07732"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GPVDPP7MYDX3MDXG54S7Q5RTH7/bundle.json","state_url":"https://pith.science/pith/GPVDPP7MYDX3MDXG54S7Q5RTH7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GPVDPP7MYDX3MDXG54S7Q5RTH7/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":"2026-07-12T01:30:34Z","links":{"resolver":"https://pith.science/pith/GPVDPP7MYDX3MDXG54S7Q5RTH7","bundle":"https://pith.science/pith/GPVDPP7MYDX3MDXG54S7Q5RTH7/bundle.json","state":"https://pith.science/pith/GPVDPP7MYDX3MDXG54S7Q5RTH7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GPVDPP7MYDX3MDXG54S7Q5RTH7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GPVDPP7MYDX3MDXG54S7Q5RTH7","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":"3aaa319de4006df29f6a5cf998c5bc1a1e7d125413fc336d63425b8132cd577d","cross_cats_sorted":["q-bio.TO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.LG","submitted_at":"2021-12-15T12:31:51Z","title_canon_sha256":"4d681caf76aba4b9e997057fffbdaba89ba5cb8ccd464a63a884bdb82c42052a"},"schema_version":"1.0","source":{"id":"2112.08075","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.08075","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"arxiv_version","alias_value":"2112.08075v2","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.08075","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"pith_short_12","alias_value":"GPVDPP7MYDX3","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"pith_short_16","alias_value":"GPVDPP7MYDX3MDXG","created_at":"2026-07-05T03:41:28Z"},{"alias_kind":"pith_short_8","alias_value":"GPVDPP7M","created_at":"2026-07-05T03:41:28Z"}],"graph_snapshots":[{"event_id":"sha256:86d130cc2800a2234113137ef08d7fc829b376eeabf6de294273336edbd07732","target":"graph","created_at":"2026-07-05T03:41:28Z","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/2112.08075/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Computational models of atrial fibrillation have successfully been used to predict optimal ablation sites. A critical step to assess the effect of an ablation pattern is to pace the model from different, potentially random, locations to determine whether arrhythmias can be induced in the atria. In this work, we propose to use multi-fidelity Gaussian process classification on Riemannian manifolds to efficiently determine the regions in the atria where arrhythmias are inducible. We build a probabilistic classifier that operates directly on the atrial surface. We take advantage of lower resolutio","authors_text":"Ali Gharaviri, Francisco Sahli Costabal, Lia Gander, Paris Perdikaris, Rolf Krause, Simone Pezzuto","cross_cats":["q-bio.TO"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.LG","submitted_at":"2021-12-15T12:31:51Z","title":"Fast characterization of inducible regions of atrial fibrillation models with multi-fidelity Gaussian process classification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.08075","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":"sha256:3e3e497dbc758d672e9d847c9a8a7e5b3f582bd8bf6a1ffff0dc1a35f38ce127","target":"record","created_at":"2026-07-05T03:41:28Z","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":"3aaa319de4006df29f6a5cf998c5bc1a1e7d125413fc336d63425b8132cd577d","cross_cats_sorted":["q-bio.TO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.LG","submitted_at":"2021-12-15T12:31:51Z","title_canon_sha256":"4d681caf76aba4b9e997057fffbdaba89ba5cb8ccd464a63a884bdb82c42052a"},"schema_version":"1.0","source":{"id":"2112.08075","kind":"arxiv","version":2}},"canonical_sha256":"33ea37bfecc0efb60ee6ef25f876333fd41bb5706bbe642240fe5af94240b4eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33ea37bfecc0efb60ee6ef25f876333fd41bb5706bbe642240fe5af94240b4eb","first_computed_at":"2026-07-05T03:41:28.769552Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:41:28.769552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pQGv+RvoSgb2mx9kGM3FiF7gON0ZECckaRY8sXHgAdNLon8WT6M78EVjmrTEXjIKdWqAgzwjbxlq+q3hT4rhBA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:41:28.770038Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.08075","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e3e497dbc758d672e9d847c9a8a7e5b3f582bd8bf6a1ffff0dc1a35f38ce127","sha256:86d130cc2800a2234113137ef08d7fc829b376eeabf6de294273336edbd07732"],"state_sha256":"c83d1b907a18cd7c9662866def4d6bdaec39a6f5f4d360cc1ffde400cb700ba4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5B1fv+NzcrPmcIkoEBh4J2PPulchipgWOMSzBp6Fomvj7oYPS2OGosAB3EAvnlzF1JwE0H8fetWsUuU0RpcIAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-12T01:30:34.191456Z","bundle_sha256":"77e82895fc4e4fad615f8da94ac7d59db7b69c1c6d7a47d2c34710d496b213d6"}}