{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IJZFWPUZ66TV5OOURXNXDYGTOR","short_pith_number":"pith:IJZFWPUZ","canonical_record":{"source":{"id":"1904.03531","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2019-04-06T21:05:30Z","cross_cats_sorted":[],"title_canon_sha256":"7974a47d13f01f874487b7460a5466e5df4b566955bb02af45b9703f2251e696","abstract_canon_sha256":"d21b5778a6f8422d959109292d615d90dfa4f1c7001ab22b5efbc8665ef93337"},"schema_version":"1.0"},"canonical_sha256":"42725b3e99f7a75eb9d48ddb71e0d3745e036b154b688efd380c2d59beb54ddc","source":{"kind":"arxiv","id":"1904.03531","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.03531","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"arxiv_version","alias_value":"1904.03531v2","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.03531","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"pith_short_12","alias_value":"IJZFWPUZ66TV","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IJZFWPUZ66TV5OOU","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IJZFWPUZ","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IJZFWPUZ66TV5OOURXNXDYGTOR","target":"record","payload":{"canonical_record":{"source":{"id":"1904.03531","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2019-04-06T21:05:30Z","cross_cats_sorted":[],"title_canon_sha256":"7974a47d13f01f874487b7460a5466e5df4b566955bb02af45b9703f2251e696","abstract_canon_sha256":"d21b5778a6f8422d959109292d615d90dfa4f1c7001ab22b5efbc8665ef93337"},"schema_version":"1.0"},"canonical_sha256":"42725b3e99f7a75eb9d48ddb71e0d3745e036b154b688efd380c2d59beb54ddc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:53.213530Z","signature_b64":"GDzCMQsx+0XrK1y+1DA3IopXNY48fyBU0eTNgYSBuv+b/2ddLYyLDpHoe3QJJ9iJaxPHnvseKgaPORcjY8kXAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42725b3e99f7a75eb9d48ddb71e0d3745e036b154b688efd380c2d59beb54ddc","last_reissued_at":"2026-05-17T23:42:53.213118Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:53.213118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.03531","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":"2026-05-17T23:42:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NnczELPwd6GMg9HfLXszHhSHU0SrlWhi+6r1zIilpwFyZUvuL1R2PIh3tYJJ5AHnqCOohs5eVy7OTUuBtyeSBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T19:43:58.901546Z"},"content_sha256":"0caa379ca4e746cccf0dae1fa894b6a11838ade4cad8aa6c87892419f0c87d7b","schema_version":"1.0","event_id":"sha256:0caa379ca4e746cccf0dae1fa894b6a11838ade4cad8aa6c87892419f0c87d7b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IJZFWPUZ66TV5OOURXNXDYGTOR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Decoding hand kinematics from population responses in sensorimotor cortex during grasping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.NC","authors_text":"Elizaveta V. Okorokova, James M. Goodman, Nicholas G. Hatsopoulos, Sliman J. Bensmaia","submitted_at":"2019-04-06T21:05:30Z","abstract_excerpt":"The hand, a complex effector comprising dozens of degrees of freedom of movement, endows us with the ability to flexibly, precisely, and effortlessly interact with objects. The neural signals associated with dexterous hand movements in primary motor cortex (M1) and somatosensory cortex (SC) have received comparatively less attention than have those that are associated with proximal limb control. To fill this gap, we trained three monkeys to grasp objects varying in size, shape and orientation while tracking their hand postures and recording single-unit activity from M1 and SC. We then decoded "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.03531","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":"2026-05-17T23:42:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PFc4ANanB5ii/mneoWzoOvFlxgqOYvhHb/C5gv5d9Zgyzm57hnRki1p9uQM382JuUidTxfVtmZfKpDzTul/LAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T19:43:58.901893Z"},"content_sha256":"a9e1efd31ffaa6bf57e1a2ed5cd4651c2108fdf89f16d9cb52d1a2f968b1762e","schema_version":"1.0","event_id":"sha256:a9e1efd31ffaa6bf57e1a2ed5cd4651c2108fdf89f16d9cb52d1a2f968b1762e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IJZFWPUZ66TV5OOURXNXDYGTOR/bundle.json","state_url":"https://pith.science/pith/IJZFWPUZ66TV5OOURXNXDYGTOR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IJZFWPUZ66TV5OOURXNXDYGTOR/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":"2026-06-27T19:43:58Z","links":{"resolver":"https://pith.science/pith/IJZFWPUZ66TV5OOURXNXDYGTOR","bundle":"https://pith.science/pith/IJZFWPUZ66TV5OOURXNXDYGTOR/bundle.json","state":"https://pith.science/pith/IJZFWPUZ66TV5OOURXNXDYGTOR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IJZFWPUZ66TV5OOURXNXDYGTOR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IJZFWPUZ66TV5OOURXNXDYGTOR","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":"d21b5778a6f8422d959109292d615d90dfa4f1c7001ab22b5efbc8665ef93337","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2019-04-06T21:05:30Z","title_canon_sha256":"7974a47d13f01f874487b7460a5466e5df4b566955bb02af45b9703f2251e696"},"schema_version":"1.0","source":{"id":"1904.03531","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.03531","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"arxiv_version","alias_value":"1904.03531v2","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.03531","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"pith_short_12","alias_value":"IJZFWPUZ66TV","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IJZFWPUZ66TV5OOU","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IJZFWPUZ","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:a9e1efd31ffaa6bf57e1a2ed5cd4651c2108fdf89f16d9cb52d1a2f968b1762e","target":"graph","created_at":"2026-05-17T23:42:53Z","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":"The hand, a complex effector comprising dozens of degrees of freedom of movement, endows us with the ability to flexibly, precisely, and effortlessly interact with objects. The neural signals associated with dexterous hand movements in primary motor cortex (M1) and somatosensory cortex (SC) have received comparatively less attention than have those that are associated with proximal limb control. To fill this gap, we trained three monkeys to grasp objects varying in size, shape and orientation while tracking their hand postures and recording single-unit activity from M1 and SC. We then decoded ","authors_text":"Elizaveta V. Okorokova, James M. Goodman, Nicholas G. Hatsopoulos, Sliman J. Bensmaia","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2019-04-06T21:05:30Z","title":"Decoding hand kinematics from population responses in sensorimotor cortex during grasping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.03531","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":"sha256:0caa379ca4e746cccf0dae1fa894b6a11838ade4cad8aa6c87892419f0c87d7b","target":"record","created_at":"2026-05-17T23:42:53Z","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":"d21b5778a6f8422d959109292d615d90dfa4f1c7001ab22b5efbc8665ef93337","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2019-04-06T21:05:30Z","title_canon_sha256":"7974a47d13f01f874487b7460a5466e5df4b566955bb02af45b9703f2251e696"},"schema_version":"1.0","source":{"id":"1904.03531","kind":"arxiv","version":2}},"canonical_sha256":"42725b3e99f7a75eb9d48ddb71e0d3745e036b154b688efd380c2d59beb54ddc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42725b3e99f7a75eb9d48ddb71e0d3745e036b154b688efd380c2d59beb54ddc","first_computed_at":"2026-05-17T23:42:53.213118Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:53.213118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GDzCMQsx+0XrK1y+1DA3IopXNY48fyBU0eTNgYSBuv+b/2ddLYyLDpHoe3QJJ9iJaxPHnvseKgaPORcjY8kXAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:53.213530Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.03531","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0caa379ca4e746cccf0dae1fa894b6a11838ade4cad8aa6c87892419f0c87d7b","sha256:a9e1efd31ffaa6bf57e1a2ed5cd4651c2108fdf89f16d9cb52d1a2f968b1762e"],"state_sha256":"0e6c22194047c8cb22505aab5099c758bf561fc4dd2aed59b0a78fd0c054e12a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DsHXC9lkk3NRQLqy7UhXAMIzbfnVoFbFXiNH0BhiWB7baDpLRIUBSczLmXmxcwTe2EaQsajos23d6EvAA1IUDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T19:43:58.904094Z","bundle_sha256":"73787527bda3c352e6113abbf8ab62d5a862af17e09557e5dcf999ea9c3d2dab"}}