{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:YPG6DQMQTGC2CT37O6C7VKXJH6","short_pith_number":"pith:YPG6DQMQ","canonical_record":{"source":{"id":"1908.01673","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-05T15:02:28Z","cross_cats_sorted":[],"title_canon_sha256":"501ed4fa22bd4fcc6ab0b6711c45f8f49a3b307fd61b1a9dc8e33ce800cae45a","abstract_canon_sha256":"a3b583b57b7d02a7ac0ba594aca1c2f9f22d2a03e1f8b194ce4bb76a835b3e56"},"schema_version":"1.0"},"canonical_sha256":"c3cde1c1909985a14f7f7785faaae93fb24c0a6539bef9acc7f651c9f2d5425c","source":{"kind":"arxiv","id":"1908.01673","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.01673","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.01673v2","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.01673","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"pith_short_12","alias_value":"YPG6DQMQTGC2","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"pith_short_16","alias_value":"YPG6DQMQTGC2CT37","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"pith_short_8","alias_value":"YPG6DQMQ","created_at":"2026-07-05T00:58:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:YPG6DQMQTGC2CT37O6C7VKXJH6","target":"record","payload":{"canonical_record":{"source":{"id":"1908.01673","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-05T15:02:28Z","cross_cats_sorted":[],"title_canon_sha256":"501ed4fa22bd4fcc6ab0b6711c45f8f49a3b307fd61b1a9dc8e33ce800cae45a","abstract_canon_sha256":"a3b583b57b7d02a7ac0ba594aca1c2f9f22d2a03e1f8b194ce4bb76a835b3e56"},"schema_version":"1.0"},"canonical_sha256":"c3cde1c1909985a14f7f7785faaae93fb24c0a6539bef9acc7f651c9f2d5425c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:58:36.465153Z","signature_b64":"qxjjcTxnWxv9dVLmzAeX2/gTp9IYlGS+p3TdzIXMbJHrVPNKGYwTk184o6xF1lFBvjQjSITHNWIrYIMCcLlkDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3cde1c1909985a14f7f7785faaae93fb24c0a6539bef9acc7f651c9f2d5425c","last_reissued_at":"2026-07-05T00:58:36.464674Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:58:36.464674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.01673","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":"2026-07-05T00:58:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PGmYYBlZJY3PkKdIwVeon11PNmhMCfV+noJum/WQ8exjq7UE+MxvGTZD/FqXew5cACAOqcAFYA1cXxya/pfvBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T20:54:57.839551Z"},"content_sha256":"738e7b1d1ac4236142c95ce05cb45f5695af32ac738109c51f35525c65a99520","schema_version":"1.0","event_id":"sha256:738e7b1d1ac4236142c95ce05cb45f5695af32ac738109c51f35525c65a99520"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:YPG6DQMQTGC2CT37O6C7VKXJH6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Flexible Cloud/User-Centric Entanglement and Photon Pair Distribution with Synthesizable Optical Router","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bernhard Schrenk, Dinka Milovan\\v{c}ev, Fabian Laudenbach, Hannes H\\\"ubel, Martin Achleitner, Nemanja Voki\\'c","submitted_at":"2019-08-05T15:02:28Z","abstract_excerpt":"The practical roll-out of quantum communication technologies in optical networks and the adoption of novel quantum applications demand the distribution of single or entangled photons. Flexibility and dynamicity are paramount for the provision of quantum resources, in order to scale with the number of users and to meet the demand of complex network architectures. We present a quantum network architecture that features this degree of reconfigurability, without being restricted to a rigid physical-layer network based on purely passive multiplexing componentry. We leverage spectral assets of photo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.01673","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/1908.01673/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":"2026-07-05T00:58:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QTcmXQXU7y5s3V49TtzpCHa8xzEV6nhYLWxBwYuXSB82UCuUawom8PAE/SOGRUyhngBZfq2XDowL2cc1/vOgAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T20:54:57.840456Z"},"content_sha256":"c02bd69654065abb455acb4958ee06cc7c4ea7c8f10392833fae3b6d291aa7c1","schema_version":"1.0","event_id":"sha256:c02bd69654065abb455acb4958ee06cc7c4ea7c8f10392833fae3b6d291aa7c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YPG6DQMQTGC2CT37O6C7VKXJH6/bundle.json","state_url":"https://pith.science/pith/YPG6DQMQTGC2CT37O6C7VKXJH6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YPG6DQMQTGC2CT37O6C7VKXJH6/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":"2026-08-17T20:54:57Z","links":{"resolver":"https://pith.science/pith/YPG6DQMQTGC2CT37O6C7VKXJH6","bundle":"https://pith.science/pith/YPG6DQMQTGC2CT37O6C7VKXJH6/bundle.json","state":"https://pith.science/pith/YPG6DQMQTGC2CT37O6C7VKXJH6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YPG6DQMQTGC2CT37O6C7VKXJH6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YPG6DQMQTGC2CT37O6C7VKXJH6","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":"a3b583b57b7d02a7ac0ba594aca1c2f9f22d2a03e1f8b194ce4bb76a835b3e56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-05T15:02:28Z","title_canon_sha256":"501ed4fa22bd4fcc6ab0b6711c45f8f49a3b307fd61b1a9dc8e33ce800cae45a"},"schema_version":"1.0","source":{"id":"1908.01673","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.01673","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.01673v2","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.01673","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"pith_short_12","alias_value":"YPG6DQMQTGC2","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"pith_short_16","alias_value":"YPG6DQMQTGC2CT37","created_at":"2026-07-05T00:58:36Z"},{"alias_kind":"pith_short_8","alias_value":"YPG6DQMQ","created_at":"2026-07-05T00:58:36Z"}],"graph_snapshots":[{"event_id":"sha256:c02bd69654065abb455acb4958ee06cc7c4ea7c8f10392833fae3b6d291aa7c1","target":"graph","created_at":"2026-07-05T00:58:36Z","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/1908.01673/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The practical roll-out of quantum communication technologies in optical networks and the adoption of novel quantum applications demand the distribution of single or entangled photons. Flexibility and dynamicity are paramount for the provision of quantum resources, in order to scale with the number of users and to meet the demand of complex network architectures. We present a quantum network architecture that features this degree of reconfigurability, without being restricted to a rigid physical-layer network based on purely passive multiplexing componentry. We leverage spectral assets of photo","authors_text":"Bernhard Schrenk, Dinka Milovan\\v{c}ev, Fabian Laudenbach, Hannes H\\\"ubel, Martin Achleitner, Nemanja Voki\\'c","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-05T15:02:28Z","title":"Flexible Cloud/User-Centric Entanglement and Photon Pair Distribution with Synthesizable Optical Router"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.01673","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":"sha256:738e7b1d1ac4236142c95ce05cb45f5695af32ac738109c51f35525c65a99520","target":"record","created_at":"2026-07-05T00:58:36Z","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":"a3b583b57b7d02a7ac0ba594aca1c2f9f22d2a03e1f8b194ce4bb76a835b3e56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-05T15:02:28Z","title_canon_sha256":"501ed4fa22bd4fcc6ab0b6711c45f8f49a3b307fd61b1a9dc8e33ce800cae45a"},"schema_version":"1.0","source":{"id":"1908.01673","kind":"arxiv","version":2}},"canonical_sha256":"c3cde1c1909985a14f7f7785faaae93fb24c0a6539bef9acc7f651c9f2d5425c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3cde1c1909985a14f7f7785faaae93fb24c0a6539bef9acc7f651c9f2d5425c","first_computed_at":"2026-07-05T00:58:36.464674Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:58:36.464674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qxjjcTxnWxv9dVLmzAeX2/gTp9IYlGS+p3TdzIXMbJHrVPNKGYwTk184o6xF1lFBvjQjSITHNWIrYIMCcLlkDg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:58:36.465153Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.01673","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:738e7b1d1ac4236142c95ce05cb45f5695af32ac738109c51f35525c65a99520","sha256:c02bd69654065abb455acb4958ee06cc7c4ea7c8f10392833fae3b6d291aa7c1"],"state_sha256":"e72699ae31155aefb79b4dc0234e1aa33df1b89f5933de94769965b5a1f6aae2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bFULKjcsqnQ97Upf46u59KGp0EaOgEUU4VwPA51mrLsjvOSQXu9LCoMsAVVoV53myzN6kw2WUGjwnIEwqcA5Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T20:54:57.848844Z","bundle_sha256":"a03790de76f8730692c1fe70657b984ab67893a35730d19bed1d6617d50bc9ef"}}