{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:7B3GAVQQGRIIYOMFJAV7P4QOZQ","short_pith_number":"pith:7B3GAVQQ","canonical_record":{"source":{"id":"2106.16043","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-30T13:12:05Z","cross_cats_sorted":[],"title_canon_sha256":"b286434668ba5ae48a1d47612592c65a7a038ae0e0cbfa8e34b0e3303b02d883","abstract_canon_sha256":"f003cab4d1f14055dec6b8905fe77963729910d050fab138f5a96f75031a393b"},"schema_version":"1.0"},"canonical_sha256":"f87660561034508c3985482bf7f20ecc19ebc39c7b8873572504bcc7810d7da6","source":{"kind":"arxiv","id":"2106.16043","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.16043","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"arxiv_version","alias_value":"2106.16043v2","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.16043","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"pith_short_12","alias_value":"7B3GAVQQGRII","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"pith_short_16","alias_value":"7B3GAVQQGRIIYOMF","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"pith_short_8","alias_value":"7B3GAVQQ","created_at":"2026-07-05T03:46:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:7B3GAVQQGRIIYOMFJAV7P4QOZQ","target":"record","payload":{"canonical_record":{"source":{"id":"2106.16043","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-30T13:12:05Z","cross_cats_sorted":[],"title_canon_sha256":"b286434668ba5ae48a1d47612592c65a7a038ae0e0cbfa8e34b0e3303b02d883","abstract_canon_sha256":"f003cab4d1f14055dec6b8905fe77963729910d050fab138f5a96f75031a393b"},"schema_version":"1.0"},"canonical_sha256":"f87660561034508c3985482bf7f20ecc19ebc39c7b8873572504bcc7810d7da6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:46:02.604758Z","signature_b64":"ZbGrRC+20P4gQUfgC2vgRZd77w0r+y2Shhn9axZ3GWAeRUSacfDJhfk8Fn7MKSgRGzdVr0AmD6xsE2hF8E17BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f87660561034508c3985482bf7f20ecc19ebc39c7b8873572504bcc7810d7da6","last_reissued_at":"2026-07-05T03:46:02.604331Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:46:02.604331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.16043","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":"2026-07-05T03:46:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WYzrk9SmPpBH0dVPrJAma9Ribd8BLf8l+e7+eGl2b7RkPzhR8RO1iVHXE0VMhOFqt2GskHtugzVtHkdGKdFYBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T20:14:32.380591Z"},"content_sha256":"b65ed04dbbd3f966414cb4d023f30af1792c07d29138b1a6dc1dac05462f891e","schema_version":"1.0","event_id":"sha256:b65ed04dbbd3f966414cb4d023f30af1792c07d29138b1a6dc1dac05462f891e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:7B3GAVQQGRIIYOMFJAV7P4QOZQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reliability of Neural Networks Based on Spintronic Neurons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Andrea Grimaldi, Anna Giordano, Eleonora Raimondo, Giovanni Finocchio, Mario Carpentieri, Riccardo Tomasello, Vito Puliafito, Zhongming Zeng","submitted_at":"2021-06-30T13:12:05Z","abstract_excerpt":"Spintronic technology is emerging as a direction for the hardware implementation of neurons and synapses of neuromorphic architectures. In particular, a single spintronic device can be used to implement the nonlinear activation function of neurons. Here, we propose how to implement spintronic neurons with a sigmoidal and ReLU-like activation functions. We then perform a numerical experiment showing the robustness of neural networks made by spintronic neurons all having different activation functions to emulate device-to-device variations in a possible hardware implementation of the network. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.16043","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2106.16043/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:46:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ntw1jv36A0EqE9xEOpJu8v7NXZqXNSghuYWvb9ck43Rtw/zr8OxUef7hscUwThpgri96OoGa/rXIlDtiEn9kBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T20:14:32.381277Z"},"content_sha256":"935c5f240b6a79203a6cdf3fe4898d186c70fd2d039f9cfed6b351f69fd6eb41","schema_version":"1.0","event_id":"sha256:935c5f240b6a79203a6cdf3fe4898d186c70fd2d039f9cfed6b351f69fd6eb41"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7B3GAVQQGRIIYOMFJAV7P4QOZQ/bundle.json","state_url":"https://pith.science/pith/7B3GAVQQGRIIYOMFJAV7P4QOZQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7B3GAVQQGRIIYOMFJAV7P4QOZQ/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":"2026-08-05T20:14:32Z","links":{"resolver":"https://pith.science/pith/7B3GAVQQGRIIYOMFJAV7P4QOZQ","bundle":"https://pith.science/pith/7B3GAVQQGRIIYOMFJAV7P4QOZQ/bundle.json","state":"https://pith.science/pith/7B3GAVQQGRIIYOMFJAV7P4QOZQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7B3GAVQQGRIIYOMFJAV7P4QOZQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:7B3GAVQQGRIIYOMFJAV7P4QOZQ","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":"f003cab4d1f14055dec6b8905fe77963729910d050fab138f5a96f75031a393b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-30T13:12:05Z","title_canon_sha256":"b286434668ba5ae48a1d47612592c65a7a038ae0e0cbfa8e34b0e3303b02d883"},"schema_version":"1.0","source":{"id":"2106.16043","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.16043","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"arxiv_version","alias_value":"2106.16043v2","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.16043","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"pith_short_12","alias_value":"7B3GAVQQGRII","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"pith_short_16","alias_value":"7B3GAVQQGRIIYOMF","created_at":"2026-07-05T03:46:02Z"},{"alias_kind":"pith_short_8","alias_value":"7B3GAVQQ","created_at":"2026-07-05T03:46:02Z"}],"graph_snapshots":[{"event_id":"sha256:935c5f240b6a79203a6cdf3fe4898d186c70fd2d039f9cfed6b351f69fd6eb41","target":"graph","created_at":"2026-07-05T03:46:02Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2106.16043/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spintronic technology is emerging as a direction for the hardware implementation of neurons and synapses of neuromorphic architectures. In particular, a single spintronic device can be used to implement the nonlinear activation function of neurons. Here, we propose how to implement spintronic neurons with a sigmoidal and ReLU-like activation functions. We then perform a numerical experiment showing the robustness of neural networks made by spintronic neurons all having different activation functions to emulate device-to-device variations in a possible hardware implementation of the network. Th","authors_text":"Andrea Grimaldi, Anna Giordano, Eleonora Raimondo, Giovanni Finocchio, Mario Carpentieri, Riccardo Tomasello, Vito Puliafito, Zhongming Zeng","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-30T13:12:05Z","title":"Reliability of Neural Networks Based on Spintronic Neurons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.16043","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:b65ed04dbbd3f966414cb4d023f30af1792c07d29138b1a6dc1dac05462f891e","target":"record","created_at":"2026-07-05T03:46:02Z","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":"f003cab4d1f14055dec6b8905fe77963729910d050fab138f5a96f75031a393b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-30T13:12:05Z","title_canon_sha256":"b286434668ba5ae48a1d47612592c65a7a038ae0e0cbfa8e34b0e3303b02d883"},"schema_version":"1.0","source":{"id":"2106.16043","kind":"arxiv","version":2}},"canonical_sha256":"f87660561034508c3985482bf7f20ecc19ebc39c7b8873572504bcc7810d7da6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f87660561034508c3985482bf7f20ecc19ebc39c7b8873572504bcc7810d7da6","first_computed_at":"2026-07-05T03:46:02.604331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:46:02.604331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZbGrRC+20P4gQUfgC2vgRZd77w0r+y2Shhn9axZ3GWAeRUSacfDJhfk8Fn7MKSgRGzdVr0AmD6xsE2hF8E17BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:46:02.604758Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.16043","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b65ed04dbbd3f966414cb4d023f30af1792c07d29138b1a6dc1dac05462f891e","sha256:935c5f240b6a79203a6cdf3fe4898d186c70fd2d039f9cfed6b351f69fd6eb41"],"state_sha256":"f6a047d48e436944fdaa3ac8baa3e0741b4f7853df8b76a556737ccd80348c22"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+kUKfg4oZ9FL0MLhpP0/elE8zbpaVc64DK2fYHfwSY/XMX8Y2G3sUUynPf8g/bZJ9HU4zJNTU2W6y0fohPMCCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T20:14:32.392366Z","bundle_sha256":"5f87812292598b8432ae8c709f78c599a599c9ac3a8c6c219ac4dfe7cd6afcc2"}}