{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:VRL4AZK6OK6KOPPLCBZMX5L7LW","short_pith_number":"pith:VRL4AZK6","canonical_record":{"source":{"id":"1610.07115","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-23T02:35:58Z","cross_cats_sorted":[],"title_canon_sha256":"344183294e52b163c2d5a8501789e8aa158e8458a15af1b1a53d25d63882eb3b","abstract_canon_sha256":"7e1334b88679d122be0769530e6b07913aa833336cf641fe6502315d173d924a"},"schema_version":"1.0"},"canonical_sha256":"ac57c0655e72bca73deb1072cbf57f5dbe167fa7f792a1684ac7de9022427ed1","source":{"kind":"arxiv","id":"1610.07115","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07115","created_at":"2026-05-18T00:32:51Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07115v1","created_at":"2026-05-18T00:32:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07115","created_at":"2026-05-18T00:32:51Z"},{"alias_kind":"pith_short_12","alias_value":"VRL4AZK6OK6K","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VRL4AZK6OK6KOPPL","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VRL4AZK6","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:VRL4AZK6OK6KOPPLCBZMX5L7LW","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07115","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-23T02:35:58Z","cross_cats_sorted":[],"title_canon_sha256":"344183294e52b163c2d5a8501789e8aa158e8458a15af1b1a53d25d63882eb3b","abstract_canon_sha256":"7e1334b88679d122be0769530e6b07913aa833336cf641fe6502315d173d924a"},"schema_version":"1.0"},"canonical_sha256":"ac57c0655e72bca73deb1072cbf57f5dbe167fa7f792a1684ac7de9022427ed1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:32:51.174578Z","signature_b64":"LCEvQBmTcVwa9aj9vR/JzLaLw7Vz57BIhuQ3Dq+VMgTlTWrV3+zljMHKQNZL6snNg/zsf3OfDmPe9j5hodg0Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac57c0655e72bca73deb1072cbf57f5dbe167fa7f792a1684ac7de9022427ed1","last_reissued_at":"2026-05-18T00:32:51.173897Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:32:51.173897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07115","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":"2026-05-18T00:32:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xuQtWKWGLF7Wi3ndigtDjVEK99MiVpscVzmpEt+1dLH2E7VyX8d7TdY3FgS4wfaOLjj5CrbzZj9ydXihzIS/Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T17:02:53.489108Z"},"content_sha256":"7746d59aab2ed64dcd5f80bb57080fe88d0c7112db30ba8a0e11e1e597be7e2b","schema_version":"1.0","event_id":"sha256:7746d59aab2ed64dcd5f80bb57080fe88d0c7112db30ba8a0e11e1e597be7e2b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:VRL4AZK6OK6KOPPLCBZMX5L7LW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Simple Picosecond Pulse Generator Based on a Pair of Step Recovery Diodes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Christophe Caloz, Lianfeng Zou, Shulabh Gupta","submitted_at":"2016-10-23T02:35:58Z","abstract_excerpt":"A picosecond pulse generator based on a pair of step recovery diodes (SRD), leveraging the transient response of the SRD PN junction and controlling the pulse width by a resistor, is proposed. We first explain the operation principle of the device, decomposing the pulse generation into different phases, and then demonstrate an experimental prototype with two different resistance, and hence pulse width, values."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07115","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":"2026-05-18T00:32:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a148hubnlxNHdXwPYegf+Z/cGAoJCj3tcfu62WUuO2QQxuEgazoEqMnk2CYdfDILAJnmAEceUjQieXP+DgEiAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T17:02:53.489762Z"},"content_sha256":"8d429d73954a3a90b20eb765f97340c10e1b6b21eda994f08437cedf905e5370","schema_version":"1.0","event_id":"sha256:8d429d73954a3a90b20eb765f97340c10e1b6b21eda994f08437cedf905e5370"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VRL4AZK6OK6KOPPLCBZMX5L7LW/bundle.json","state_url":"https://pith.science/pith/VRL4AZK6OK6KOPPLCBZMX5L7LW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VRL4AZK6OK6KOPPLCBZMX5L7LW/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":"2026-06-08T17:02:53Z","links":{"resolver":"https://pith.science/pith/VRL4AZK6OK6KOPPLCBZMX5L7LW","bundle":"https://pith.science/pith/VRL4AZK6OK6KOPPLCBZMX5L7LW/bundle.json","state":"https://pith.science/pith/VRL4AZK6OK6KOPPLCBZMX5L7LW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VRL4AZK6OK6KOPPLCBZMX5L7LW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:VRL4AZK6OK6KOPPLCBZMX5L7LW","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":"7e1334b88679d122be0769530e6b07913aa833336cf641fe6502315d173d924a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-23T02:35:58Z","title_canon_sha256":"344183294e52b163c2d5a8501789e8aa158e8458a15af1b1a53d25d63882eb3b"},"schema_version":"1.0","source":{"id":"1610.07115","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07115","created_at":"2026-05-18T00:32:51Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07115v1","created_at":"2026-05-18T00:32:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07115","created_at":"2026-05-18T00:32:51Z"},{"alias_kind":"pith_short_12","alias_value":"VRL4AZK6OK6K","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VRL4AZK6OK6KOPPL","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VRL4AZK6","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:8d429d73954a3a90b20eb765f97340c10e1b6b21eda994f08437cedf905e5370","target":"graph","created_at":"2026-05-18T00:32:51Z","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 picosecond pulse generator based on a pair of step recovery diodes (SRD), leveraging the transient response of the SRD PN junction and controlling the pulse width by a resistor, is proposed. We first explain the operation principle of the device, decomposing the pulse generation into different phases, and then demonstrate an experimental prototype with two different resistance, and hence pulse width, values.","authors_text":"Christophe Caloz, Lianfeng Zou, Shulabh Gupta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-23T02:35:58Z","title":"A Simple Picosecond Pulse Generator Based on a Pair of Step Recovery Diodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07115","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":"sha256:7746d59aab2ed64dcd5f80bb57080fe88d0c7112db30ba8a0e11e1e597be7e2b","target":"record","created_at":"2026-05-18T00:32:51Z","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":"7e1334b88679d122be0769530e6b07913aa833336cf641fe6502315d173d924a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2016-10-23T02:35:58Z","title_canon_sha256":"344183294e52b163c2d5a8501789e8aa158e8458a15af1b1a53d25d63882eb3b"},"schema_version":"1.0","source":{"id":"1610.07115","kind":"arxiv","version":1}},"canonical_sha256":"ac57c0655e72bca73deb1072cbf57f5dbe167fa7f792a1684ac7de9022427ed1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac57c0655e72bca73deb1072cbf57f5dbe167fa7f792a1684ac7de9022427ed1","first_computed_at":"2026-05-18T00:32:51.173897Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:32:51.173897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LCEvQBmTcVwa9aj9vR/JzLaLw7Vz57BIhuQ3Dq+VMgTlTWrV3+zljMHKQNZL6snNg/zsf3OfDmPe9j5hodg0Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:32:51.174578Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07115","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7746d59aab2ed64dcd5f80bb57080fe88d0c7112db30ba8a0e11e1e597be7e2b","sha256:8d429d73954a3a90b20eb765f97340c10e1b6b21eda994f08437cedf905e5370"],"state_sha256":"e1f5b45f6d6d4ffca4b74ee39f4c01cbde135bcebe67ee1d02dc08ab1aa6cbef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uxdN9xnmQUrWJuWEPadupJmX0v0wnGpTADqgF6UKMVG4UvQq3BX9a35Wd+Nvg3xH7Bht0x1pTWeZeT0tjsiABA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T17:02:53.493351Z","bundle_sha256":"43697afb7ef5eee6f415ffa6ff9290371ff57ea544975c8e0e86bdd2dd1ad35c"}}