{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:YWO4FSPHHXDXCSFXXHS2VVX355","short_pith_number":"pith:YWO4FSPH","canonical_record":{"source":{"id":"1704.04129","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-13T13:40:51Z","cross_cats_sorted":[],"title_canon_sha256":"98f65cbb900059900818ee330a92606b24edd0ce4161c667dc72d8d6670401c4","abstract_canon_sha256":"4d8b78ddf6739205697d6dd68d4c7d53611a76c70b36c2c99874cc43259289ee"},"schema_version":"1.0"},"canonical_sha256":"c59dc2c9e73dc77148b7b9e5aad6fbef5bf22e407825ac999116e9d8a719b3cf","source":{"kind":"arxiv","id":"1704.04129","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04129","created_at":"2026-05-18T00:23:39Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04129v1","created_at":"2026-05-18T00:23:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04129","created_at":"2026-05-18T00:23:39Z"},{"alias_kind":"pith_short_12","alias_value":"YWO4FSPHHXDX","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YWO4FSPHHXDXCSFX","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YWO4FSPH","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:YWO4FSPHHXDXCSFXXHS2VVX355","target":"record","payload":{"canonical_record":{"source":{"id":"1704.04129","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-13T13:40:51Z","cross_cats_sorted":[],"title_canon_sha256":"98f65cbb900059900818ee330a92606b24edd0ce4161c667dc72d8d6670401c4","abstract_canon_sha256":"4d8b78ddf6739205697d6dd68d4c7d53611a76c70b36c2c99874cc43259289ee"},"schema_version":"1.0"},"canonical_sha256":"c59dc2c9e73dc77148b7b9e5aad6fbef5bf22e407825ac999116e9d8a719b3cf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:39.475125Z","signature_b64":"tfA/Yw6/NaYrmxNhg+QQaIbW0yE7iiMHrEPie4PHS5HXHmkxoEQ2Iq+3fDIu3zSlWVk1lHLDCqpWLEswuvVABg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c59dc2c9e73dc77148b7b9e5aad6fbef5bf22e407825ac999116e9d8a719b3cf","last_reissued_at":"2026-05-18T00:23:39.474384Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:39.474384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.04129","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":"2026-05-18T00:23:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pXlVnWVsNMiGUvcRIWyqK1Te0gHEFHJh56JWAe+kVR68i/5deLOVzFCuy5hQIK+CxkJ2tkmj2IuXrGqRbskLAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:23:39.139933Z"},"content_sha256":"317ce35ba627e055b3a06ce0030e82fd0fe511f2ec10f6b9daa443c248b3a91a","schema_version":"1.0","event_id":"sha256:317ce35ba627e055b3a06ce0030e82fd0fe511f2ec10f6b9daa443c248b3a91a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:YWO4FSPHHXDXCSFXXHS2VVX355","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Streak-camera measurements of single photons at telecom wavelength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Benjamin Brecht, Christine Silberhorn, Christof Eigner, John Matthew Donohue, Manfred Bayer, Marc A{\\ss}mann, Markus Allgaier, Raimund Ricken, Thomas Czerniuk, Vahid Ansari, Viktor Quiring","submitted_at":"2017-04-13T13:40:51Z","abstract_excerpt":"Up to this point streak-cameras have been a powerful tool for temporal characterization of ultrafast light pulses even at the single photon level. However, the low signal-to-noise ratio in the infrared range prevents measurement on weak light sources in the telecom regime. We present an approach to circumvent this problem. The method utilizes an up-conversion process in periodically poled waveguides in Lithium Niobate. We convert single photons from a parametric down-conversion source in order to reach the point of maximum detection efficiency of commercially available streak-cameras. We explo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04129","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":"2026-05-18T00:23:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xh7es/JWKh0nRyR9Hvsc6IUgWWElKwkOQK37TwKJqeoGfZ1j3m6FtWof8u7CjTrhoEWZbxvkzYOD0rI0fOS3Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:23:39.140280Z"},"content_sha256":"b3d58c21a3b7dd0bb66f605c15bd27f3d7b6c2642c7d279e50aba5088d4e2265","schema_version":"1.0","event_id":"sha256:b3d58c21a3b7dd0bb66f605c15bd27f3d7b6c2642c7d279e50aba5088d4e2265"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YWO4FSPHHXDXCSFXXHS2VVX355/bundle.json","state_url":"https://pith.science/pith/YWO4FSPHHXDXCSFXXHS2VVX355/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YWO4FSPHHXDXCSFXXHS2VVX355/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":"2026-06-01T21:23:39Z","links":{"resolver":"https://pith.science/pith/YWO4FSPHHXDXCSFXXHS2VVX355","bundle":"https://pith.science/pith/YWO4FSPHHXDXCSFXXHS2VVX355/bundle.json","state":"https://pith.science/pith/YWO4FSPHHXDXCSFXXHS2VVX355/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YWO4FSPHHXDXCSFXXHS2VVX355/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:YWO4FSPHHXDXCSFXXHS2VVX355","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":"4d8b78ddf6739205697d6dd68d4c7d53611a76c70b36c2c99874cc43259289ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-13T13:40:51Z","title_canon_sha256":"98f65cbb900059900818ee330a92606b24edd0ce4161c667dc72d8d6670401c4"},"schema_version":"1.0","source":{"id":"1704.04129","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04129","created_at":"2026-05-18T00:23:39Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04129v1","created_at":"2026-05-18T00:23:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04129","created_at":"2026-05-18T00:23:39Z"},{"alias_kind":"pith_short_12","alias_value":"YWO4FSPHHXDX","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YWO4FSPHHXDXCSFX","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YWO4FSPH","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:b3d58c21a3b7dd0bb66f605c15bd27f3d7b6c2642c7d279e50aba5088d4e2265","target":"graph","created_at":"2026-05-18T00:23:39Z","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":"Up to this point streak-cameras have been a powerful tool for temporal characterization of ultrafast light pulses even at the single photon level. However, the low signal-to-noise ratio in the infrared range prevents measurement on weak light sources in the telecom regime. We present an approach to circumvent this problem. The method utilizes an up-conversion process in periodically poled waveguides in Lithium Niobate. We convert single photons from a parametric down-conversion source in order to reach the point of maximum detection efficiency of commercially available streak-cameras. We explo","authors_text":"Benjamin Brecht, Christine Silberhorn, Christof Eigner, John Matthew Donohue, Manfred Bayer, Marc A{\\ss}mann, Markus Allgaier, Raimund Ricken, Thomas Czerniuk, Vahid Ansari, Viktor Quiring","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-13T13:40:51Z","title":"Streak-camera measurements of single photons at telecom wavelength"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04129","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":"sha256:317ce35ba627e055b3a06ce0030e82fd0fe511f2ec10f6b9daa443c248b3a91a","target":"record","created_at":"2026-05-18T00:23:39Z","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":"4d8b78ddf6739205697d6dd68d4c7d53611a76c70b36c2c99874cc43259289ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-13T13:40:51Z","title_canon_sha256":"98f65cbb900059900818ee330a92606b24edd0ce4161c667dc72d8d6670401c4"},"schema_version":"1.0","source":{"id":"1704.04129","kind":"arxiv","version":1}},"canonical_sha256":"c59dc2c9e73dc77148b7b9e5aad6fbef5bf22e407825ac999116e9d8a719b3cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c59dc2c9e73dc77148b7b9e5aad6fbef5bf22e407825ac999116e9d8a719b3cf","first_computed_at":"2026-05-18T00:23:39.474384Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:39.474384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tfA/Yw6/NaYrmxNhg+QQaIbW0yE7iiMHrEPie4PHS5HXHmkxoEQ2Iq+3fDIu3zSlWVk1lHLDCqpWLEswuvVABg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:39.475125Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.04129","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:317ce35ba627e055b3a06ce0030e82fd0fe511f2ec10f6b9daa443c248b3a91a","sha256:b3d58c21a3b7dd0bb66f605c15bd27f3d7b6c2642c7d279e50aba5088d4e2265"],"state_sha256":"83f70d35a12b9a2da293a968d87012a775accc936012251aaa2c0acf73f4c326"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2S1MekTc43R0TGdCKwnUODGj63FZK/JeEO2EvH2B8Twry8D6kLAfBecTVXTLX8RVWYJ9HStlbFTqs+Wy/zOyAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T21:23:39.142185Z","bundle_sha256":"b2e42f4491fd4ada85055868dab6d1b7546119af2578635fe305f9f723c1a35a"}}