{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:F4MJQLJR5RJA63U5KYOU3ZZ5YE","short_pith_number":"pith:F4MJQLJR","canonical_record":{"source":{"id":"1807.11241","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-07-30T08:59:14Z","cross_cats_sorted":[],"title_canon_sha256":"dbce433212dbab2662c1e602e28088da6f359249e0004491b60193dfe09d44af","abstract_canon_sha256":"9eb088b81747bc9eacc9799a302f453f6f54c2c194510f02895ae3baa32d2d28"},"schema_version":"1.0"},"canonical_sha256":"2f18982d31ec520f6e9d561d4de73dc139f9f451ca9744215f5fca9f3775e916","source":{"kind":"arxiv","id":"1807.11241","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.11241","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"arxiv_version","alias_value":"1807.11241v1","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.11241","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"pith_short_12","alias_value":"F4MJQLJR5RJA","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"F4MJQLJR5RJA63U5","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"F4MJQLJR","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:F4MJQLJR5RJA63U5KYOU3ZZ5YE","target":"record","payload":{"canonical_record":{"source":{"id":"1807.11241","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-07-30T08:59:14Z","cross_cats_sorted":[],"title_canon_sha256":"dbce433212dbab2662c1e602e28088da6f359249e0004491b60193dfe09d44af","abstract_canon_sha256":"9eb088b81747bc9eacc9799a302f453f6f54c2c194510f02895ae3baa32d2d28"},"schema_version":"1.0"},"canonical_sha256":"2f18982d31ec520f6e9d561d4de73dc139f9f451ca9744215f5fca9f3775e916","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:32.534396Z","signature_b64":"zo67MFiUCeRzH7YXH5dkCWsVKu5pM27yJ9Q1EZg1Av6NvB1Ifggdj7hJDYlIoUMKyX7+UDfpzujv+6xebNOsAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f18982d31ec520f6e9d561d4de73dc139f9f451ca9744215f5fca9f3775e916","last_reissued_at":"2026-05-18T00:09:32.533939Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:32.533939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.11241","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":"2026-05-18T00:09:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dWS3tqJRKt8C4xuxRBgRdUtTrENGAGHbPSfV3F7c1jxWYpZAoSZJiBVtwGSJ3O729UqTGYeIGIKV84ftBvJjBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T10:27:21.362178Z"},"content_sha256":"07743650dce81cb75b5f9a35eabc59f5d1ae4fcaa5bbd35d6d5794e22b56278a","schema_version":"1.0","event_id":"sha256:07743650dce81cb75b5f9a35eabc59f5d1ae4fcaa5bbd35d6d5794e22b56278a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:F4MJQLJR5RJA63U5KYOU3ZZ5YE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mechanomyography based closed-loop Functional Electrical Stimulation cycling system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.RO","authors_text":"A. Aldo Faisal, Ali Shafti, Billy Woods, Mahendran Subramanian","submitted_at":"2018-07-30T08:59:14Z","abstract_excerpt":"Functional Electrical Stimulation (FES) systems are successful in restoring motor function and supporting paralyzed users. Commercially available FES products are open loop, meaning that the system is unable to adapt to changing conditions with the user and their muscles which results in muscle fatigue and poor stimulation protocols. This is because it is difficult to close the loop between stimulation and monitoring of muscle contraction using adaptive stimulation. FES causes electrical artefacts which make it challenging to monitor muscle contractions with traditional methods such as electro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.11241","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":"2026-05-18T00:09:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T30nyY/xGLv5QdqNECBHU5yY+4xNT4Y39zwr8LDO0Zbz1m1j4qc33hm8Lyslhv9HxGugS+6jRpZ7eadXMHXLDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T10:27:21.362531Z"},"content_sha256":"4ac99a7a31a372d9de65f66fce6745d35175a2a308f5d7e5ad65bbd956d72cf2","schema_version":"1.0","event_id":"sha256:4ac99a7a31a372d9de65f66fce6745d35175a2a308f5d7e5ad65bbd956d72cf2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F4MJQLJR5RJA63U5KYOU3ZZ5YE/bundle.json","state_url":"https://pith.science/pith/F4MJQLJR5RJA63U5KYOU3ZZ5YE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F4MJQLJR5RJA63U5KYOU3ZZ5YE/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":"2026-06-12T10:27:21Z","links":{"resolver":"https://pith.science/pith/F4MJQLJR5RJA63U5KYOU3ZZ5YE","bundle":"https://pith.science/pith/F4MJQLJR5RJA63U5KYOU3ZZ5YE/bundle.json","state":"https://pith.science/pith/F4MJQLJR5RJA63U5KYOU3ZZ5YE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F4MJQLJR5RJA63U5KYOU3ZZ5YE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:F4MJQLJR5RJA63U5KYOU3ZZ5YE","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":"9eb088b81747bc9eacc9799a302f453f6f54c2c194510f02895ae3baa32d2d28","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-07-30T08:59:14Z","title_canon_sha256":"dbce433212dbab2662c1e602e28088da6f359249e0004491b60193dfe09d44af"},"schema_version":"1.0","source":{"id":"1807.11241","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.11241","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"arxiv_version","alias_value":"1807.11241v1","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.11241","created_at":"2026-05-18T00:09:32Z"},{"alias_kind":"pith_short_12","alias_value":"F4MJQLJR5RJA","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"F4MJQLJR5RJA63U5","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"F4MJQLJR","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:4ac99a7a31a372d9de65f66fce6745d35175a2a308f5d7e5ad65bbd956d72cf2","target":"graph","created_at":"2026-05-18T00:09:32Z","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":"Functional Electrical Stimulation (FES) systems are successful in restoring motor function and supporting paralyzed users. Commercially available FES products are open loop, meaning that the system is unable to adapt to changing conditions with the user and their muscles which results in muscle fatigue and poor stimulation protocols. This is because it is difficult to close the loop between stimulation and monitoring of muscle contraction using adaptive stimulation. FES causes electrical artefacts which make it challenging to monitor muscle contractions with traditional methods such as electro","authors_text":"A. Aldo Faisal, Ali Shafti, Billy Woods, Mahendran Subramanian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-07-30T08:59:14Z","title":"Mechanomyography based closed-loop Functional Electrical Stimulation cycling system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.11241","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":"sha256:07743650dce81cb75b5f9a35eabc59f5d1ae4fcaa5bbd35d6d5794e22b56278a","target":"record","created_at":"2026-05-18T00:09:32Z","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":"9eb088b81747bc9eacc9799a302f453f6f54c2c194510f02895ae3baa32d2d28","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-07-30T08:59:14Z","title_canon_sha256":"dbce433212dbab2662c1e602e28088da6f359249e0004491b60193dfe09d44af"},"schema_version":"1.0","source":{"id":"1807.11241","kind":"arxiv","version":1}},"canonical_sha256":"2f18982d31ec520f6e9d561d4de73dc139f9f451ca9744215f5fca9f3775e916","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2f18982d31ec520f6e9d561d4de73dc139f9f451ca9744215f5fca9f3775e916","first_computed_at":"2026-05-18T00:09:32.533939Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:32.533939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zo67MFiUCeRzH7YXH5dkCWsVKu5pM27yJ9Q1EZg1Av6NvB1Ifggdj7hJDYlIoUMKyX7+UDfpzujv+6xebNOsAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:32.534396Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.11241","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07743650dce81cb75b5f9a35eabc59f5d1ae4fcaa5bbd35d6d5794e22b56278a","sha256:4ac99a7a31a372d9de65f66fce6745d35175a2a308f5d7e5ad65bbd956d72cf2"],"state_sha256":"e3bd060c39300a2ca916fd0ab6c18e7cdef85537d809b8d9a1e736a28d9618d3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"waBllnjGm6jHT3A5oh24erSzz4cz+bx3dmFejcll2VBPyovTirVErJgZ8AF+MfPlOYkKZ8fMmg7B3InuR/hLDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T10:27:21.364434Z","bundle_sha256":"6c2b4485684374e96c03393ad893fc7bf599b1833ef5a0a0d5670bd8c354db7a"}}