{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:6WKJ3X7YSOKSRBPAUTW5XRO37I","short_pith_number":"pith:6WKJ3X7Y","canonical_record":{"source":{"id":"1505.07814","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2015-05-28T19:30:32Z","cross_cats_sorted":[],"title_canon_sha256":"1d65e0b35dd86ee1ecd779ab6830dddc940b500daddae2a239f9300c1f439862","abstract_canon_sha256":"697598caff1f837c0ddc57bbd895c5662f551e23cb830b27badaa2d06212a641"},"schema_version":"1.0"},"canonical_sha256":"f5949ddff893952885e0a4eddbc5dbfa292a4df3659ed0a5f957e17ca7cc573b","source":{"kind":"arxiv","id":"1505.07814","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07814","created_at":"2026-05-18T01:26:10Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07814v2","created_at":"2026-05-18T01:26:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07814","created_at":"2026-05-18T01:26:10Z"},{"alias_kind":"pith_short_12","alias_value":"6WKJ3X7YSOKS","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6WKJ3X7YSOKSRBPA","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6WKJ3X7Y","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:6WKJ3X7YSOKSRBPAUTW5XRO37I","target":"record","payload":{"canonical_record":{"source":{"id":"1505.07814","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2015-05-28T19:30:32Z","cross_cats_sorted":[],"title_canon_sha256":"1d65e0b35dd86ee1ecd779ab6830dddc940b500daddae2a239f9300c1f439862","abstract_canon_sha256":"697598caff1f837c0ddc57bbd895c5662f551e23cb830b27badaa2d06212a641"},"schema_version":"1.0"},"canonical_sha256":"f5949ddff893952885e0a4eddbc5dbfa292a4df3659ed0a5f957e17ca7cc573b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:26:10.196039Z","signature_b64":"a6+uHxpLleUhSNfRjlmNxdcjRI7fqQK7DLEcvEN6WcUZOrLAEeK0bekSdFimog7EiUDY8XWIfktryM5V2T0UAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f5949ddff893952885e0a4eddbc5dbfa292a4df3659ed0a5f957e17ca7cc573b","last_reissued_at":"2026-05-18T01:26:10.195352Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:26:10.195352Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.07814","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":"2026-05-18T01:26:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oe4aDBgUDYkj+oUdSx3t0VndCpCTrdFHv5Vb9xoc0FaUWxzfGeRdW6Kdjqq8NAzpdyxwQQfRcK2YlaUHFxCiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T07:36:06.455508Z"},"content_sha256":"1323301fd70a789a3d3e5404c842911da4795c90f30ffa044a7b7355200aa421","schema_version":"1.0","event_id":"sha256:1323301fd70a789a3d3e5404c842911da4795c90f30ffa044a7b7355200aa421"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:6WKJ3X7YSOKSRBPAUTW5XRO37I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A CMOS Spiking Neuron for Brain-Inspired Neural Networks with Resistive Synapses and In-Situ Learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NE","authors_text":"Kehan Zhu, Sakkarapani Balagopal, Vishal Saxena, Xinyu Wu","submitted_at":"2015-05-28T19:30:32Z","abstract_excerpt":"Nanoscale resistive memories are expected to fuel dense integration of electronic synapses for large-scale neuromorphic system. To realize such a brain-inspired computing chip, a compact CMOS spiking neuron that performs in-situ learning and computing while driving a large number of resistive synapses is desired. This work presents a novel leaky integrate-and-fire neuron design which implements the dual-mode operation of current integration and synaptic drive, with a single opamp and enables in-situ learning with crossbar resistive synapses. The proposed design was implemented in a 0.18 $\\mu$m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07814","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":"2026-05-18T01:26:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DBHzNtHZorYbsWX6+EjTXXEThsznE+V8g9PLcu7tdqo5IenRwWsfeFNCUyh6H0isdwXyk0rnU5XgYf8c2KA1DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T07:36:06.455859Z"},"content_sha256":"e04ca8e1580d9723027cc82709bd6429057c047c27537ad844b91677e91404a5","schema_version":"1.0","event_id":"sha256:e04ca8e1580d9723027cc82709bd6429057c047c27537ad844b91677e91404a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6WKJ3X7YSOKSRBPAUTW5XRO37I/bundle.json","state_url":"https://pith.science/pith/6WKJ3X7YSOKSRBPAUTW5XRO37I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6WKJ3X7YSOKSRBPAUTW5XRO37I/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":"2026-05-31T07:36:06Z","links":{"resolver":"https://pith.science/pith/6WKJ3X7YSOKSRBPAUTW5XRO37I","bundle":"https://pith.science/pith/6WKJ3X7YSOKSRBPAUTW5XRO37I/bundle.json","state":"https://pith.science/pith/6WKJ3X7YSOKSRBPAUTW5XRO37I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6WKJ3X7YSOKSRBPAUTW5XRO37I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6WKJ3X7YSOKSRBPAUTW5XRO37I","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":"697598caff1f837c0ddc57bbd895c5662f551e23cb830b27badaa2d06212a641","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2015-05-28T19:30:32Z","title_canon_sha256":"1d65e0b35dd86ee1ecd779ab6830dddc940b500daddae2a239f9300c1f439862"},"schema_version":"1.0","source":{"id":"1505.07814","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07814","created_at":"2026-05-18T01:26:10Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07814v2","created_at":"2026-05-18T01:26:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07814","created_at":"2026-05-18T01:26:10Z"},{"alias_kind":"pith_short_12","alias_value":"6WKJ3X7YSOKS","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6WKJ3X7YSOKSRBPA","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6WKJ3X7Y","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:e04ca8e1580d9723027cc82709bd6429057c047c27537ad844b91677e91404a5","target":"graph","created_at":"2026-05-18T01:26:10Z","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":"Nanoscale resistive memories are expected to fuel dense integration of electronic synapses for large-scale neuromorphic system. To realize such a brain-inspired computing chip, a compact CMOS spiking neuron that performs in-situ learning and computing while driving a large number of resistive synapses is desired. This work presents a novel leaky integrate-and-fire neuron design which implements the dual-mode operation of current integration and synaptic drive, with a single opamp and enables in-situ learning with crossbar resistive synapses. The proposed design was implemented in a 0.18 $\\mu$m","authors_text":"Kehan Zhu, Sakkarapani Balagopal, Vishal Saxena, Xinyu Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2015-05-28T19:30:32Z","title":"A CMOS Spiking Neuron for Brain-Inspired Neural Networks with Resistive Synapses and In-Situ Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07814","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":"sha256:1323301fd70a789a3d3e5404c842911da4795c90f30ffa044a7b7355200aa421","target":"record","created_at":"2026-05-18T01:26:10Z","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":"697598caff1f837c0ddc57bbd895c5662f551e23cb830b27badaa2d06212a641","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2015-05-28T19:30:32Z","title_canon_sha256":"1d65e0b35dd86ee1ecd779ab6830dddc940b500daddae2a239f9300c1f439862"},"schema_version":"1.0","source":{"id":"1505.07814","kind":"arxiv","version":2}},"canonical_sha256":"f5949ddff893952885e0a4eddbc5dbfa292a4df3659ed0a5f957e17ca7cc573b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5949ddff893952885e0a4eddbc5dbfa292a4df3659ed0a5f957e17ca7cc573b","first_computed_at":"2026-05-18T01:26:10.195352Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:26:10.195352Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"a6+uHxpLleUhSNfRjlmNxdcjRI7fqQK7DLEcvEN6WcUZOrLAEeK0bekSdFimog7EiUDY8XWIfktryM5V2T0UAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:26:10.196039Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.07814","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1323301fd70a789a3d3e5404c842911da4795c90f30ffa044a7b7355200aa421","sha256:e04ca8e1580d9723027cc82709bd6429057c047c27537ad844b91677e91404a5"],"state_sha256":"a8465c40748650f70837736ce51eab4b6c754e1f19c3ab9bef9353cf6b363681"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ud5E9ADdPeTHR64U+dGpHl78t9L7AxT5m8uaDvOCotPAVP+HBrGZDl8Ni7RRENVL6JKk4gnk3WWTyTUXx1sAAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T07:36:06.457895Z","bundle_sha256":"ef804c10e3be2b840cc3d466d95877160a6a95604be95b7f6b33bf236ad1574e"}}