{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:FLLVIHBWFM3XIBGT6Y27RFXBWQ","short_pith_number":"pith:FLLVIHBW","canonical_record":{"source":{"id":"2301.05694","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-01-13T18:34:56Z","cross_cats_sorted":[],"title_canon_sha256":"5a10c7c809b8d0bde07fb099d4c00fb3d9953231b4980eae9f3920eb070dbf67","abstract_canon_sha256":"4a365c6638131e079d306d67a24fe5b0d38116d67639908eb08f8d4176f6e33c"},"schema_version":"1.0"},"canonical_sha256":"2ad7541c362b377404d3f635f896e1b40168c0c05dc6aa1f9533982447c9c3c7","source":{"kind":"arxiv","id":"2301.05694","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.05694","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"arxiv_version","alias_value":"2301.05694v1","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.05694","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"pith_short_12","alias_value":"FLLVIHBWFM3X","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"pith_short_16","alias_value":"FLLVIHBWFM3XIBGT","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"pith_short_8","alias_value":"FLLVIHBW","created_at":"2026-07-05T05:32:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:FLLVIHBWFM3XIBGT6Y27RFXBWQ","target":"record","payload":{"canonical_record":{"source":{"id":"2301.05694","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-01-13T18:34:56Z","cross_cats_sorted":[],"title_canon_sha256":"5a10c7c809b8d0bde07fb099d4c00fb3d9953231b4980eae9f3920eb070dbf67","abstract_canon_sha256":"4a365c6638131e079d306d67a24fe5b0d38116d67639908eb08f8d4176f6e33c"},"schema_version":"1.0"},"canonical_sha256":"2ad7541c362b377404d3f635f896e1b40168c0c05dc6aa1f9533982447c9c3c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:32:55.630579Z","signature_b64":"6TZyCJeHhX9LEkrF24WHyTWEkT9NC9TQG9GE5FT4PE5V8VFvCX/zzRWPVfiDJWkZSDXeN35m/XCAVAzKIVc9Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ad7541c362b377404d3f635f896e1b40168c0c05dc6aa1f9533982447c9c3c7","last_reissued_at":"2026-07-05T05:32:55.630164Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:32:55.630164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.05694","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":"2026-07-05T05:32:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I+hlfW1Gw7x6vTZ8x5ai2VlVenKlPjEjhC9SKBSl+UjQ+nKQVquC4glt5mPfrNbrQnu5CNAM9nL/JOG6WVTABA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T12:25:27.607461Z"},"content_sha256":"530fe64747e94f86fd9cd33bcdedc974cdfc9dfc2462d006115dd1c8f1a0c498","schema_version":"1.0","event_id":"sha256:530fe64747e94f86fd9cd33bcdedc974cdfc9dfc2462d006115dd1c8f1a0c498"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:FLLVIHBWFM3XIBGT6Y27RFXBWQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanosecond True Random Number Generation with Superparamagnetic Tunnel Junctions -- Identification of Joule Heating and Spin-Transfer-Torque effects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Gerhard Jakob, Leo Schnitzspan, Mathias Kl\\\"aui","submitted_at":"2023-01-13T18:34:56Z","abstract_excerpt":"This work investigates nanosecond superparamagnetic switching in 50 nm diameter in-plane magnetized magnetic tunnel junctions (MTJs). Due to the small in-plane uniaxial anisotropy, dwell times below 10 ns and auto-correlation times down to 5 ns are measured for circular superparamagnetic tunnel junctions (SMTJs). SMTJs exhibit probabilistic switching of the magnetic free layer, which can be used for the generation of true random numbers. The quality of random bitstreams, generated by our SMTJ, is evaluated with a statistical test suite (NIST STS, sp 800-22) and shows true randomness after thre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.05694","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2301.05694/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":"2026-07-05T05:32:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CLxe5dM2uB+TjvtDgd3Bi48nBMFKUDY0GernBAJCF4wDnE7ezdQbe7fkNX1VZnRd8tkrahfW3yoRCJOx2TISDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T12:25:27.608339Z"},"content_sha256":"c55d457f1ed30dcfcc6758adf64ee941f888ada1dd910aacfa01f211cfb2a6d3","schema_version":"1.0","event_id":"sha256:c55d457f1ed30dcfcc6758adf64ee941f888ada1dd910aacfa01f211cfb2a6d3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FLLVIHBWFM3XIBGT6Y27RFXBWQ/bundle.json","state_url":"https://pith.science/pith/FLLVIHBWFM3XIBGT6Y27RFXBWQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FLLVIHBWFM3XIBGT6Y27RFXBWQ/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":"2026-08-20T12:25:27Z","links":{"resolver":"https://pith.science/pith/FLLVIHBWFM3XIBGT6Y27RFXBWQ","bundle":"https://pith.science/pith/FLLVIHBWFM3XIBGT6Y27RFXBWQ/bundle.json","state":"https://pith.science/pith/FLLVIHBWFM3XIBGT6Y27RFXBWQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FLLVIHBWFM3XIBGT6Y27RFXBWQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:FLLVIHBWFM3XIBGT6Y27RFXBWQ","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":"4a365c6638131e079d306d67a24fe5b0d38116d67639908eb08f8d4176f6e33c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-01-13T18:34:56Z","title_canon_sha256":"5a10c7c809b8d0bde07fb099d4c00fb3d9953231b4980eae9f3920eb070dbf67"},"schema_version":"1.0","source":{"id":"2301.05694","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.05694","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"arxiv_version","alias_value":"2301.05694v1","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.05694","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"pith_short_12","alias_value":"FLLVIHBWFM3X","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"pith_short_16","alias_value":"FLLVIHBWFM3XIBGT","created_at":"2026-07-05T05:32:55Z"},{"alias_kind":"pith_short_8","alias_value":"FLLVIHBW","created_at":"2026-07-05T05:32:55Z"}],"graph_snapshots":[{"event_id":"sha256:c55d457f1ed30dcfcc6758adf64ee941f888ada1dd910aacfa01f211cfb2a6d3","target":"graph","created_at":"2026-07-05T05:32:55Z","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/2301.05694/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This work investigates nanosecond superparamagnetic switching in 50 nm diameter in-plane magnetized magnetic tunnel junctions (MTJs). Due to the small in-plane uniaxial anisotropy, dwell times below 10 ns and auto-correlation times down to 5 ns are measured for circular superparamagnetic tunnel junctions (SMTJs). SMTJs exhibit probabilistic switching of the magnetic free layer, which can be used for the generation of true random numbers. The quality of random bitstreams, generated by our SMTJ, is evaluated with a statistical test suite (NIST STS, sp 800-22) and shows true randomness after thre","authors_text":"Gerhard Jakob, Leo Schnitzspan, Mathias Kl\\\"aui","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-01-13T18:34:56Z","title":"Nanosecond True Random Number Generation with Superparamagnetic Tunnel Junctions -- Identification of Joule Heating and Spin-Transfer-Torque effects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.05694","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":"sha256:530fe64747e94f86fd9cd33bcdedc974cdfc9dfc2462d006115dd1c8f1a0c498","target":"record","created_at":"2026-07-05T05:32:55Z","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":"4a365c6638131e079d306d67a24fe5b0d38116d67639908eb08f8d4176f6e33c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-01-13T18:34:56Z","title_canon_sha256":"5a10c7c809b8d0bde07fb099d4c00fb3d9953231b4980eae9f3920eb070dbf67"},"schema_version":"1.0","source":{"id":"2301.05694","kind":"arxiv","version":1}},"canonical_sha256":"2ad7541c362b377404d3f635f896e1b40168c0c05dc6aa1f9533982447c9c3c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ad7541c362b377404d3f635f896e1b40168c0c05dc6aa1f9533982447c9c3c7","first_computed_at":"2026-07-05T05:32:55.630164Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:32:55.630164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6TZyCJeHhX9LEkrF24WHyTWEkT9NC9TQG9GE5FT4PE5V8VFvCX/zzRWPVfiDJWkZSDXeN35m/XCAVAzKIVc9Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:32:55.630579Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.05694","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:530fe64747e94f86fd9cd33bcdedc974cdfc9dfc2462d006115dd1c8f1a0c498","sha256:c55d457f1ed30dcfcc6758adf64ee941f888ada1dd910aacfa01f211cfb2a6d3"],"state_sha256":"b4c91b976a5c49c6e9ce94cde984ccbdd8ec9d1f990dbbf1d3f8164b6c644526"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gZPmy2kGSZNdyH3PjkbffOPRqNZ1fTznmcDvU07DEe8bVG8RY/yAsNDgOkYg0baZBRGgLdWkdhntQOm7cbNLCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T12:25:27.614955Z","bundle_sha256":"f7d7f064598e739b9543bfdfca2b49525b7b125ee3aa12dd0b44a0162579e11c"}}