{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UNNOUZPXMC7M5JHLKGLMGRYPBW","short_pith_number":"pith:UNNOUZPX","canonical_record":{"source":{"id":"1510.00440","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-01T22:31:40Z","cross_cats_sorted":[],"title_canon_sha256":"27f9443051ab42fbbe71aac25a0b69dd8adcd71cad53929e36c7bbf57e66e885","abstract_canon_sha256":"399866732bf87acc2b67a95f1094944d2dbe26cc83a5f6fc631ba32781826175"},"schema_version":"1.0"},"canonical_sha256":"a35aea65f760becea4eb5196c3470f0dbfd5abf07ba48e55d84d511ce1c206c3","source":{"kind":"arxiv","id":"1510.00440","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.00440","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"arxiv_version","alias_value":"1510.00440v4","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.00440","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"pith_short_12","alias_value":"UNNOUZPXMC7M","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UNNOUZPXMC7M5JHL","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UNNOUZPX","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UNNOUZPXMC7M5JHLKGLMGRYPBW","target":"record","payload":{"canonical_record":{"source":{"id":"1510.00440","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-01T22:31:40Z","cross_cats_sorted":[],"title_canon_sha256":"27f9443051ab42fbbe71aac25a0b69dd8adcd71cad53929e36c7bbf57e66e885","abstract_canon_sha256":"399866732bf87acc2b67a95f1094944d2dbe26cc83a5f6fc631ba32781826175"},"schema_version":"1.0"},"canonical_sha256":"a35aea65f760becea4eb5196c3470f0dbfd5abf07ba48e55d84d511ce1c206c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:47.349203Z","signature_b64":"cgVzTRJFdwrC+KOyatobNBTEZsvogkBEsTyptQbk+S+GLOGKInx5vhOffPJJrnA81PB4+s5RGUG0HoHOhg11BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a35aea65f760becea4eb5196c3470f0dbfd5abf07ba48e55d84d511ce1c206c3","last_reissued_at":"2026-05-18T00:27:47.348772Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:47.348772Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.00440","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:27:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y4HUubaaKQiAeNva89xF817fTkj+a978IFF3KofLn9WWsnpjEcBPMNTaySuVkd4xIhTbspsDKJt9Njs/iOwjBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:38:46.552423Z"},"content_sha256":"dd0f25db55761e36de6df78b2e626f047fcf55ef4df3d61cff0410fc53bbb6cd","schema_version":"1.0","event_id":"sha256:dd0f25db55761e36de6df78b2e626f047fcf55ef4df3d61cff0410fc53bbb6cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UNNOUZPXMC7M5JHLKGLMGRYPBW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Tunnel Junction Mimics Stochastic Cortical Spiking Neurons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.ET","authors_text":"Abhronil Sengupta, Kaushik Roy, Parami Wijesinghe, Priyadarshini Panda, Yusung Kim","submitted_at":"2015-10-01T22:31:40Z","abstract_excerpt":"Brain-inspired computing architectures attempt to mimic the computations performed in the neurons and the synapses in the human brain in order to achieve its efficiency in learning and cognitive tasks. In this work, we demonstrate the mapping of the probabilistic spiking nature of pyramidal neurons in the cortex to the stochastic switching behavior of a Magnetic Tunnel Junction in presence of thermal noise. We present results to illustrate the efficiency of neuromorphic systems based on such probabilistic neurons for pattern recognition tasks in presence of lateral inhibition and homeostasis. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.00440","kind":"arxiv","version":4},"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":"2026-05-18T00:27:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BitUa6Eys2bDCgfdlItqzmNio6itwY14h5VmboyC7JmIT39X6Kr33NPefWQSO6l5gmKC1PzTJueYeYCWVTweBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:38:46.553191Z"},"content_sha256":"7e0cbd9871280f18079a8a91ea169aed31a6b2555e8dfe7b021b28e6f7b51c5d","schema_version":"1.0","event_id":"sha256:7e0cbd9871280f18079a8a91ea169aed31a6b2555e8dfe7b021b28e6f7b51c5d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UNNOUZPXMC7M5JHLKGLMGRYPBW/bundle.json","state_url":"https://pith.science/pith/UNNOUZPXMC7M5JHLKGLMGRYPBW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UNNOUZPXMC7M5JHLKGLMGRYPBW/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":"2026-05-31T09:38:46Z","links":{"resolver":"https://pith.science/pith/UNNOUZPXMC7M5JHLKGLMGRYPBW","bundle":"https://pith.science/pith/UNNOUZPXMC7M5JHLKGLMGRYPBW/bundle.json","state":"https://pith.science/pith/UNNOUZPXMC7M5JHLKGLMGRYPBW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UNNOUZPXMC7M5JHLKGLMGRYPBW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UNNOUZPXMC7M5JHLKGLMGRYPBW","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":"399866732bf87acc2b67a95f1094944d2dbe26cc83a5f6fc631ba32781826175","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-01T22:31:40Z","title_canon_sha256":"27f9443051ab42fbbe71aac25a0b69dd8adcd71cad53929e36c7bbf57e66e885"},"schema_version":"1.0","source":{"id":"1510.00440","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.00440","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"arxiv_version","alias_value":"1510.00440v4","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.00440","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"pith_short_12","alias_value":"UNNOUZPXMC7M","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UNNOUZPXMC7M5JHL","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UNNOUZPX","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:7e0cbd9871280f18079a8a91ea169aed31a6b2555e8dfe7b021b28e6f7b51c5d","target":"graph","created_at":"2026-05-18T00:27:47Z","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":"Brain-inspired computing architectures attempt to mimic the computations performed in the neurons and the synapses in the human brain in order to achieve its efficiency in learning and cognitive tasks. In this work, we demonstrate the mapping of the probabilistic spiking nature of pyramidal neurons in the cortex to the stochastic switching behavior of a Magnetic Tunnel Junction in presence of thermal noise. We present results to illustrate the efficiency of neuromorphic systems based on such probabilistic neurons for pattern recognition tasks in presence of lateral inhibition and homeostasis. ","authors_text":"Abhronil Sengupta, Kaushik Roy, Parami Wijesinghe, Priyadarshini Panda, Yusung Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-01T22:31:40Z","title":"Magnetic Tunnel Junction Mimics Stochastic Cortical Spiking Neurons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.00440","kind":"arxiv","version":4},"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:dd0f25db55761e36de6df78b2e626f047fcf55ef4df3d61cff0410fc53bbb6cd","target":"record","created_at":"2026-05-18T00:27:47Z","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":"399866732bf87acc2b67a95f1094944d2dbe26cc83a5f6fc631ba32781826175","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-01T22:31:40Z","title_canon_sha256":"27f9443051ab42fbbe71aac25a0b69dd8adcd71cad53929e36c7bbf57e66e885"},"schema_version":"1.0","source":{"id":"1510.00440","kind":"arxiv","version":4}},"canonical_sha256":"a35aea65f760becea4eb5196c3470f0dbfd5abf07ba48e55d84d511ce1c206c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a35aea65f760becea4eb5196c3470f0dbfd5abf07ba48e55d84d511ce1c206c3","first_computed_at":"2026-05-18T00:27:47.348772Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:27:47.348772Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cgVzTRJFdwrC+KOyatobNBTEZsvogkBEsTyptQbk+S+GLOGKInx5vhOffPJJrnA81PB4+s5RGUG0HoHOhg11BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:27:47.349203Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.00440","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd0f25db55761e36de6df78b2e626f047fcf55ef4df3d61cff0410fc53bbb6cd","sha256:7e0cbd9871280f18079a8a91ea169aed31a6b2555e8dfe7b021b28e6f7b51c5d"],"state_sha256":"7baf28d2051de2cf24109b090a2fb8e92cd3db15ba140bf093d50ee8719445c4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q8s5hGLGq2tpWEj7D2MyE51l1s9frpP54xMRzfSF0GZ+indQArGQP6wQLVr2REs5EWFEM8ESLvKBfT01grOdBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T09:38:46.558145Z","bundle_sha256":"ff975c8bcacd5b98e3107d4672b39e1764f5e811539c66cf0424e928d721cb81"}}