{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:SNR7BVUFKMPZ5PQVJOTCEUMHUY","short_pith_number":"pith:SNR7BVUF","canonical_record":{"source":{"id":"1412.3233","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2014-12-10T09:13:29Z","cross_cats_sorted":[],"title_canon_sha256":"3e848d3ac8f640dfac1782610cda8ee4e5917d96ed67fbe39cc18c002024ebf8","abstract_canon_sha256":"0f4434436193867f36add5e29148c549761bb6228a70e7751c5a420e341ac4f6"},"schema_version":"1.0"},"canonical_sha256":"9363f0d685531f9ebe154ba6225187a620b50805dbe132ea44c353e7781df0b4","source":{"kind":"arxiv","id":"1412.3233","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3233","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3233v1","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3233","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"pith_short_12","alias_value":"SNR7BVUFKMPZ","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SNR7BVUFKMPZ5PQV","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SNR7BVUF","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:SNR7BVUFKMPZ5PQVJOTCEUMHUY","target":"record","payload":{"canonical_record":{"source":{"id":"1412.3233","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2014-12-10T09:13:29Z","cross_cats_sorted":[],"title_canon_sha256":"3e848d3ac8f640dfac1782610cda8ee4e5917d96ed67fbe39cc18c002024ebf8","abstract_canon_sha256":"0f4434436193867f36add5e29148c549761bb6228a70e7751c5a420e341ac4f6"},"schema_version":"1.0"},"canonical_sha256":"9363f0d685531f9ebe154ba6225187a620b50805dbe132ea44c353e7781df0b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:31:37.195129Z","signature_b64":"dmmu8dHs34uCEkdyQrSxN9kHvlcRmmtvw8GN1ioSz6eIaMcXn1WUtvhekAG50BjqX4bbQi+Mw4cWisO4VSEFAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9363f0d685531f9ebe154ba6225187a620b50805dbe132ea44c353e7781df0b4","last_reissued_at":"2026-05-18T02:31:37.194477Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:31:37.194477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.3233","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":"2026-05-18T02:31:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sRBsa+xke7oF1THOO9WiD5YGfAyE/z2rubEhGWZ1W12Xybjs8Rs1iRlFFch4CzLia1QGSwbseye5hGMX9OS6Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T17:59:33.384726Z"},"content_sha256":"ed607ad19e97032f0b2d9db6ffa2845b3eda53c8f93595b3003317e15e5fc548","schema_version":"1.0","event_id":"sha256:ed607ad19e97032f0b2d9db6ffa2845b3eda53c8f93595b3003317e15e5fc548"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:SNR7BVUFKMPZ5PQVJOTCEUMHUY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Biological-Realtime Neuromorphic System in 28 nm CMOS using Low-Leakage Switched Capacitor Circuits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.ET","authors_text":"Christian Mayr, Georg Ellguth, Johannes Partzsch, Marko Noack, Rene Sch\\\"uffny, Sebastian H\\\"oppner, Stefan H\\\"anzsche, Stefan Scholze","submitted_at":"2014-12-10T09:13:29Z","abstract_excerpt":"A switched-capacitor (SC) neuromorphic system for closed-loop neural coupling in 28 nm CMOS is presented, occupying 600 um by 600 um. It offers 128 input channels (i.e. presynaptic terminals), 8192 synapses and 64 output channels (i.e. neurons). Biologically realistic neuron and synapse dynam- ics are achieved via a faithful translation of the behavioural equations to SC circuits. As leakage currents significantly affect circuit behaviour at this technology node, dedicated compensation techniques are employed to achieve biological-realtime operation, with faithful reproduction of time constant"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3233","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":"2026-05-18T02:31:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LvX25ove49wEVhukCtrohCTTcabkJKV2CDZzrmOoJotmkfW757RfAduGw/mT9iu8JfsGnyv+2GZIxZE6wqrKAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T17:59:33.385368Z"},"content_sha256":"306c440d168055c9d741293a2c6ba6e4c0dbc599bc1025bedab4638e442b8d0b","schema_version":"1.0","event_id":"sha256:306c440d168055c9d741293a2c6ba6e4c0dbc599bc1025bedab4638e442b8d0b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SNR7BVUFKMPZ5PQVJOTCEUMHUY/bundle.json","state_url":"https://pith.science/pith/SNR7BVUFKMPZ5PQVJOTCEUMHUY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SNR7BVUFKMPZ5PQVJOTCEUMHUY/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":"2026-05-27T17:59:33Z","links":{"resolver":"https://pith.science/pith/SNR7BVUFKMPZ5PQVJOTCEUMHUY","bundle":"https://pith.science/pith/SNR7BVUFKMPZ5PQVJOTCEUMHUY/bundle.json","state":"https://pith.science/pith/SNR7BVUFKMPZ5PQVJOTCEUMHUY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SNR7BVUFKMPZ5PQVJOTCEUMHUY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:SNR7BVUFKMPZ5PQVJOTCEUMHUY","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":"0f4434436193867f36add5e29148c549761bb6228a70e7751c5a420e341ac4f6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2014-12-10T09:13:29Z","title_canon_sha256":"3e848d3ac8f640dfac1782610cda8ee4e5917d96ed67fbe39cc18c002024ebf8"},"schema_version":"1.0","source":{"id":"1412.3233","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3233","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3233v1","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3233","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"pith_short_12","alias_value":"SNR7BVUFKMPZ","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SNR7BVUFKMPZ5PQV","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SNR7BVUF","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:306c440d168055c9d741293a2c6ba6e4c0dbc599bc1025bedab4638e442b8d0b","target":"graph","created_at":"2026-05-18T02:31:37Z","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":"A switched-capacitor (SC) neuromorphic system for closed-loop neural coupling in 28 nm CMOS is presented, occupying 600 um by 600 um. It offers 128 input channels (i.e. presynaptic terminals), 8192 synapses and 64 output channels (i.e. neurons). Biologically realistic neuron and synapse dynam- ics are achieved via a faithful translation of the behavioural equations to SC circuits. As leakage currents significantly affect circuit behaviour at this technology node, dedicated compensation techniques are employed to achieve biological-realtime operation, with faithful reproduction of time constant","authors_text":"Christian Mayr, Georg Ellguth, Johannes Partzsch, Marko Noack, Rene Sch\\\"uffny, Sebastian H\\\"oppner, Stefan H\\\"anzsche, Stefan Scholze","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2014-12-10T09:13:29Z","title":"A Biological-Realtime Neuromorphic System in 28 nm CMOS using Low-Leakage Switched Capacitor Circuits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3233","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:ed607ad19e97032f0b2d9db6ffa2845b3eda53c8f93595b3003317e15e5fc548","target":"record","created_at":"2026-05-18T02:31:37Z","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":"0f4434436193867f36add5e29148c549761bb6228a70e7751c5a420e341ac4f6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2014-12-10T09:13:29Z","title_canon_sha256":"3e848d3ac8f640dfac1782610cda8ee4e5917d96ed67fbe39cc18c002024ebf8"},"schema_version":"1.0","source":{"id":"1412.3233","kind":"arxiv","version":1}},"canonical_sha256":"9363f0d685531f9ebe154ba6225187a620b50805dbe132ea44c353e7781df0b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9363f0d685531f9ebe154ba6225187a620b50805dbe132ea44c353e7781df0b4","first_computed_at":"2026-05-18T02:31:37.194477Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:31:37.194477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dmmu8dHs34uCEkdyQrSxN9kHvlcRmmtvw8GN1ioSz6eIaMcXn1WUtvhekAG50BjqX4bbQi+Mw4cWisO4VSEFAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:31:37.195129Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.3233","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed607ad19e97032f0b2d9db6ffa2845b3eda53c8f93595b3003317e15e5fc548","sha256:306c440d168055c9d741293a2c6ba6e4c0dbc599bc1025bedab4638e442b8d0b"],"state_sha256":"f99a036e5d56d8fa5c25ac4c510ee55fcbdd0275750f6450af9b31c816e74a41"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AMsSA9DIg/yZ1cgkmCwuFzIA5h47aPXDZGwfq9R2Ejjj3Tx89LM/uVtm4cnIKlYGbmB8ME3q19JeyM3BKwPSAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T17:59:33.388048Z","bundle_sha256":"33bcba1cebf4320bdd8fd026fc66326fc85c86298a358bf95a5707c809e1e20f"}}