{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YVI6E3Y7KYHJUQNPX2URSIDEJI","short_pith_number":"pith:YVI6E3Y7","canonical_record":{"source":{"id":"1804.05699","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-16T14:21:03Z","cross_cats_sorted":[],"title_canon_sha256":"19619e63d2ab62cd08e371e7e076136f9197f50972fa4158e53f858f89a08b22","abstract_canon_sha256":"eea63aa121d96d8a9f2fa6b8366e8eebe4c6f8bec8f07b3823110efa3fd82f0a"},"schema_version":"1.0"},"canonical_sha256":"c551e26f1f560e9a41afbea91920644a114d39a0672fbba699263e8c8cc290f3","source":{"kind":"arxiv","id":"1804.05699","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05699","created_at":"2026-05-17T23:45:26Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05699v1","created_at":"2026-05-17T23:45:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05699","created_at":"2026-05-17T23:45:26Z"},{"alias_kind":"pith_short_12","alias_value":"YVI6E3Y7KYHJ","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YVI6E3Y7KYHJUQNP","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YVI6E3Y7","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YVI6E3Y7KYHJUQNPX2URSIDEJI","target":"record","payload":{"canonical_record":{"source":{"id":"1804.05699","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-16T14:21:03Z","cross_cats_sorted":[],"title_canon_sha256":"19619e63d2ab62cd08e371e7e076136f9197f50972fa4158e53f858f89a08b22","abstract_canon_sha256":"eea63aa121d96d8a9f2fa6b8366e8eebe4c6f8bec8f07b3823110efa3fd82f0a"},"schema_version":"1.0"},"canonical_sha256":"c551e26f1f560e9a41afbea91920644a114d39a0672fbba699263e8c8cc290f3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:26.187226Z","signature_b64":"V+Kkd12qE0JTzusHe9JUhtJ6Js5dLuo37KCtupKBpseO/hLaGcidkcPGkQ6dq6DNAspaq7eeaM+aa4btwtmEBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c551e26f1f560e9a41afbea91920644a114d39a0672fbba699263e8c8cc290f3","last_reissued_at":"2026-05-17T23:45:26.186765Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:26.186765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.05699","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":"2026-05-17T23:45:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q+5reH5M7OfiGgvP/ABwNhAuYeg7PFPrp3WZMmO+U3H4zODD1DQSZhvC5BpPjlrJYb6WOf3GWxMQRIU0iXphBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:42:41.795538Z"},"content_sha256":"a66ebe06a56a39bee10f751f6f68160bcae12007ee7b6b04d958e92f61611c9d","schema_version":"1.0","event_id":"sha256:a66ebe06a56a39bee10f751f6f68160bcae12007ee7b6b04d958e92f61611c9d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YVI6E3Y7KYHJUQNPX2URSIDEJI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Storage and retrieval of heralded telecommunication-wavelength photons using a solid-state waveguide quantum memory","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Daniel Oblak, Marcel.li Grimau Pugibert, Matthew D. Shaw, Mohsen Falamarzi Askarani, Neil Sinclair, Sae Woo Nam, Thomas Lutz, Varun B. Verma, Wolfgang Tittel","submitted_at":"2018-04-16T14:21:03Z","abstract_excerpt":"Large-scale quantum networks will employ telecommunication-wavelength photons to exchange quantum information between remote measurement, storage, and processing nodes via fibre-optic channels. Quantum memories compatible with telecommunication-wavelength photons are a key element towards building such a quantum network. Here, we demonstrate the storage and retrieval of heralded 1532 nm-wavelength photons using a solid-state waveguide quantum memory. The heralded photons are derived from a photon-pair source that is based on parametric down-conversion, and our quantum memory is based on a 6 GH"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05699","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":"2026-05-17T23:45:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4h6AXnkMdrQQlvqcYknwYSaPBKfVU/whWjHREnT2rLd883S/YYyrx3+U6R/FQPjy8v1R5CIZznl3sV65khsNAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:42:41.796240Z"},"content_sha256":"57f9b0f031c0a560f6ea8a7ef8b8d3810b3d00d66b339842b7725f2d87b1dbae","schema_version":"1.0","event_id":"sha256:57f9b0f031c0a560f6ea8a7ef8b8d3810b3d00d66b339842b7725f2d87b1dbae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YVI6E3Y7KYHJUQNPX2URSIDEJI/bundle.json","state_url":"https://pith.science/pith/YVI6E3Y7KYHJUQNPX2URSIDEJI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YVI6E3Y7KYHJUQNPX2URSIDEJI/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":"2026-05-29T17:42:41Z","links":{"resolver":"https://pith.science/pith/YVI6E3Y7KYHJUQNPX2URSIDEJI","bundle":"https://pith.science/pith/YVI6E3Y7KYHJUQNPX2URSIDEJI/bundle.json","state":"https://pith.science/pith/YVI6E3Y7KYHJUQNPX2URSIDEJI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YVI6E3Y7KYHJUQNPX2URSIDEJI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YVI6E3Y7KYHJUQNPX2URSIDEJI","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":"eea63aa121d96d8a9f2fa6b8366e8eebe4c6f8bec8f07b3823110efa3fd82f0a","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-16T14:21:03Z","title_canon_sha256":"19619e63d2ab62cd08e371e7e076136f9197f50972fa4158e53f858f89a08b22"},"schema_version":"1.0","source":{"id":"1804.05699","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05699","created_at":"2026-05-17T23:45:26Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05699v1","created_at":"2026-05-17T23:45:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05699","created_at":"2026-05-17T23:45:26Z"},{"alias_kind":"pith_short_12","alias_value":"YVI6E3Y7KYHJ","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YVI6E3Y7KYHJUQNP","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YVI6E3Y7","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:57f9b0f031c0a560f6ea8a7ef8b8d3810b3d00d66b339842b7725f2d87b1dbae","target":"graph","created_at":"2026-05-17T23:45:26Z","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":"Large-scale quantum networks will employ telecommunication-wavelength photons to exchange quantum information between remote measurement, storage, and processing nodes via fibre-optic channels. Quantum memories compatible with telecommunication-wavelength photons are a key element towards building such a quantum network. Here, we demonstrate the storage and retrieval of heralded 1532 nm-wavelength photons using a solid-state waveguide quantum memory. The heralded photons are derived from a photon-pair source that is based on parametric down-conversion, and our quantum memory is based on a 6 GH","authors_text":"Daniel Oblak, Marcel.li Grimau Pugibert, Matthew D. Shaw, Mohsen Falamarzi Askarani, Neil Sinclair, Sae Woo Nam, Thomas Lutz, Varun B. Verma, Wolfgang Tittel","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-16T14:21:03Z","title":"Storage and retrieval of heralded telecommunication-wavelength photons using a solid-state waveguide quantum memory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05699","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:a66ebe06a56a39bee10f751f6f68160bcae12007ee7b6b04d958e92f61611c9d","target":"record","created_at":"2026-05-17T23:45:26Z","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":"eea63aa121d96d8a9f2fa6b8366e8eebe4c6f8bec8f07b3823110efa3fd82f0a","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-16T14:21:03Z","title_canon_sha256":"19619e63d2ab62cd08e371e7e076136f9197f50972fa4158e53f858f89a08b22"},"schema_version":"1.0","source":{"id":"1804.05699","kind":"arxiv","version":1}},"canonical_sha256":"c551e26f1f560e9a41afbea91920644a114d39a0672fbba699263e8c8cc290f3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c551e26f1f560e9a41afbea91920644a114d39a0672fbba699263e8c8cc290f3","first_computed_at":"2026-05-17T23:45:26.186765Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:26.186765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V+Kkd12qE0JTzusHe9JUhtJ6Js5dLuo37KCtupKBpseO/hLaGcidkcPGkQ6dq6DNAspaq7eeaM+aa4btwtmEBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:26.187226Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.05699","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a66ebe06a56a39bee10f751f6f68160bcae12007ee7b6b04d958e92f61611c9d","sha256:57f9b0f031c0a560f6ea8a7ef8b8d3810b3d00d66b339842b7725f2d87b1dbae"],"state_sha256":"88d0388841034e80138f11becc0306e40692bbdeea80f00b55c28d89f5900aba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MjGkip+7XwOcO8uUAw7id51hFG0WWGb6BfsY8H5zP9UgEzTI7OfieTeZttnHSY2cHRGyqED7KKotCH9gE8hxDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T17:42:41.799728Z","bundle_sha256":"d23e97c2228480cb11df27c346a8618ce1efea9a512a0e74e9460db6ca56690a"}}