{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:FHYDARM7D65KLOZLMC3FXV3O36","short_pith_number":"pith:FHYDARM7","canonical_record":{"source":{"id":"1511.00051","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-31T00:41:15Z","cross_cats_sorted":[],"title_canon_sha256":"94f1119e0d92445d73ffc431c646b211d547a174f2c45d82ec027d306c004e75","abstract_canon_sha256":"f724cd359cf9f114d672f84d9110d88e0bf7bc8bcc4b11ffb46c52f605e27e72"},"schema_version":"1.0"},"canonical_sha256":"29f030459f1fbaa5bb2b60b65bd76edf88fb12f8544f5ea82ed7a30abbc31a07","source":{"kind":"arxiv","id":"1511.00051","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00051","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00051v3","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00051","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"pith_short_12","alias_value":"FHYDARM7D65K","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FHYDARM7D65KLOZL","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FHYDARM7","created_at":"2026-05-18T12:29:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:FHYDARM7D65KLOZLMC3FXV3O36","target":"record","payload":{"canonical_record":{"source":{"id":"1511.00051","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-31T00:41:15Z","cross_cats_sorted":[],"title_canon_sha256":"94f1119e0d92445d73ffc431c646b211d547a174f2c45d82ec027d306c004e75","abstract_canon_sha256":"f724cd359cf9f114d672f84d9110d88e0bf7bc8bcc4b11ffb46c52f605e27e72"},"schema_version":"1.0"},"canonical_sha256":"29f030459f1fbaa5bb2b60b65bd76edf88fb12f8544f5ea82ed7a30abbc31a07","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:47.319353Z","signature_b64":"FB6P+LAMmlHp1ogv2vaZE3wWq/+IaXZ65A1lrlaGqpcD6Riu3rEQi7zmMtM+WN1jP8uDgoxsG8JcOFO22VVACQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29f030459f1fbaa5bb2b60b65bd76edf88fb12f8544f5ea82ed7a30abbc31a07","last_reissued_at":"2026-05-18T00:27:47.318773Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:47.318773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.00051","source_version":3,"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":"fjD6KKqgkhHFiizjkdfpLA506nNS+cL9cMT28rjtuLTDQ488nYNNt76OFyLFcYNLz3CMqhHK6g7roPJx57c/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T11:55:30.289738Z"},"content_sha256":"e3f10035726c817ded1b352a416fecec1ef0f27e51245a8f2eafcfd2e81e9e2c","schema_version":"1.0","event_id":"sha256:e3f10035726c817ded1b352a416fecec1ef0f27e51245a8f2eafcfd2e81e9e2c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:FHYDARM7D65KLOZLMC3FXV3O36","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Short-Term Plasticity and Long-Term Potentiation in Magnetic Tunnel Junctions: Towards Volatile Synapses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.ET","authors_text":"Abhronil Sengupta, Kaushik Roy","submitted_at":"2015-10-31T00:41:15Z","abstract_excerpt":"Synaptic memory is considered to be the main element responsible for learning and cognition in humans. Although traditionally non-volatile long-term plasticity changes have been implemented in nanoelectronic synapses for neuromorphic applications, recent studies in neuroscience have revealed that biological synapses undergo meta-stable volatile strengthening followed by a long-term strengthening provided that the frequency of the input stimulus is sufficiently high. Such \"memory strengthening\" and \"memory decay\" functionalities can potentially lead to adaptive neuromorphic architectures. In th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00051","kind":"arxiv","version":3},"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":"QVBdzES6wtrl1dV/hVR5T+QIwxvKa6mAnVLW3+58F6XCuffJ/DMNDOtKEbN70DA/Y5yjcwbIB6bluBakpTkTDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T11:55:30.290396Z"},"content_sha256":"7970e6cba1ed221f5860635c000663bb18b6c50b6da8a3495f04b56bca5439f2","schema_version":"1.0","event_id":"sha256:7970e6cba1ed221f5860635c000663bb18b6c50b6da8a3495f04b56bca5439f2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FHYDARM7D65KLOZLMC3FXV3O36/bundle.json","state_url":"https://pith.science/pith/FHYDARM7D65KLOZLMC3FXV3O36/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FHYDARM7D65KLOZLMC3FXV3O36/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":"2026-06-06T11:55:30Z","links":{"resolver":"https://pith.science/pith/FHYDARM7D65KLOZLMC3FXV3O36","bundle":"https://pith.science/pith/FHYDARM7D65KLOZLMC3FXV3O36/bundle.json","state":"https://pith.science/pith/FHYDARM7D65KLOZLMC3FXV3O36/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FHYDARM7D65KLOZLMC3FXV3O36/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FHYDARM7D65KLOZLMC3FXV3O36","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":"f724cd359cf9f114d672f84d9110d88e0bf7bc8bcc4b11ffb46c52f605e27e72","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-31T00:41:15Z","title_canon_sha256":"94f1119e0d92445d73ffc431c646b211d547a174f2c45d82ec027d306c004e75"},"schema_version":"1.0","source":{"id":"1511.00051","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00051","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00051v3","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00051","created_at":"2026-05-18T00:27:47Z"},{"alias_kind":"pith_short_12","alias_value":"FHYDARM7D65K","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FHYDARM7D65KLOZL","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FHYDARM7","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:7970e6cba1ed221f5860635c000663bb18b6c50b6da8a3495f04b56bca5439f2","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":"Synaptic memory is considered to be the main element responsible for learning and cognition in humans. Although traditionally non-volatile long-term plasticity changes have been implemented in nanoelectronic synapses for neuromorphic applications, recent studies in neuroscience have revealed that biological synapses undergo meta-stable volatile strengthening followed by a long-term strengthening provided that the frequency of the input stimulus is sufficiently high. Such \"memory strengthening\" and \"memory decay\" functionalities can potentially lead to adaptive neuromorphic architectures. In th","authors_text":"Abhronil Sengupta, Kaushik Roy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-31T00:41:15Z","title":"Short-Term Plasticity and Long-Term Potentiation in Magnetic Tunnel Junctions: Towards Volatile Synapses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00051","kind":"arxiv","version":3},"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:e3f10035726c817ded1b352a416fecec1ef0f27e51245a8f2eafcfd2e81e9e2c","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":"f724cd359cf9f114d672f84d9110d88e0bf7bc8bcc4b11ffb46c52f605e27e72","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-10-31T00:41:15Z","title_canon_sha256":"94f1119e0d92445d73ffc431c646b211d547a174f2c45d82ec027d306c004e75"},"schema_version":"1.0","source":{"id":"1511.00051","kind":"arxiv","version":3}},"canonical_sha256":"29f030459f1fbaa5bb2b60b65bd76edf88fb12f8544f5ea82ed7a30abbc31a07","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29f030459f1fbaa5bb2b60b65bd76edf88fb12f8544f5ea82ed7a30abbc31a07","first_computed_at":"2026-05-18T00:27:47.318773Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:27:47.318773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FB6P+LAMmlHp1ogv2vaZE3wWq/+IaXZ65A1lrlaGqpcD6Riu3rEQi7zmMtM+WN1jP8uDgoxsG8JcOFO22VVACQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:27:47.319353Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.00051","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3f10035726c817ded1b352a416fecec1ef0f27e51245a8f2eafcfd2e81e9e2c","sha256:7970e6cba1ed221f5860635c000663bb18b6c50b6da8a3495f04b56bca5439f2"],"state_sha256":"c386fba4f1670ee120fe4b2b22069ebd410d9ee3f6de3c726d9c5572bf0fe4aa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jQsqO7gFAq8d2igXyBTmQSPea3eclsEF1KkIVmumaIpVv5yKj6hMwibJFyVBj96imZotDkZ/EOlfPdUVGJVtBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T11:55:30.294013Z","bundle_sha256":"f43436de779c43307e332e3910bce219b4409419d9a62852cf6c364ea8884025"}}