{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:YXFTR6BYBI23JMNLVLEO3NYGVT","short_pith_number":"pith:YXFTR6BY","canonical_record":{"source":{"id":"1009.0489","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-02T17:55:39Z","cross_cats_sorted":[],"title_canon_sha256":"cf5df560b9619ffa5a56bfbd7b045dbe60edfe1a7ef7a7aabeb1ce13ab857575","abstract_canon_sha256":"2f7e182695ef70db7c6e8380f4782387d06375fcfb9a123aee9fb1136f79bb56"},"schema_version":"1.0"},"canonical_sha256":"c5cb38f8380a35b4b1abaac8edb706acf8872c52319dc1e5b214c3794ceb348e","source":{"kind":"arxiv","id":"1009.0489","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0489","created_at":"2026-05-18T04:28:21Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0489v3","created_at":"2026-05-18T04:28:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0489","created_at":"2026-05-18T04:28:21Z"},{"alias_kind":"pith_short_12","alias_value":"YXFTR6BYBI23","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"YXFTR6BYBI23JMNL","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"YXFTR6BY","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:YXFTR6BYBI23JMNLVLEO3NYGVT","target":"record","payload":{"canonical_record":{"source":{"id":"1009.0489","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-02T17:55:39Z","cross_cats_sorted":[],"title_canon_sha256":"cf5df560b9619ffa5a56bfbd7b045dbe60edfe1a7ef7a7aabeb1ce13ab857575","abstract_canon_sha256":"2f7e182695ef70db7c6e8380f4782387d06375fcfb9a123aee9fb1136f79bb56"},"schema_version":"1.0"},"canonical_sha256":"c5cb38f8380a35b4b1abaac8edb706acf8872c52319dc1e5b214c3794ceb348e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:21.567154Z","signature_b64":"VFnMgEDydnN0RDhWmTgeLrLkL45j36Dsl5go8rK5+Lqibx2xszdhNx8BvOtiJJNhaCrA86GYkIpWTVcZzV3KBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5cb38f8380a35b4b1abaac8edb706acf8872c52319dc1e5b214c3794ceb348e","last_reissued_at":"2026-05-18T04:28:21.566707Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:21.566707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.0489","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:28:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SrkkdJLtwxSzYZUfobvmG1QVZPgL+D99cc14lxLXcS2gZOecIDP4f6NPlYo6hLFVLMmBAB9ebY4+DFH9R8gMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:32:50.689382Z"},"content_sha256":"b12a47abaaa95296c6126bb43cf5bf999f810875fa24a9092dac1573ebd60aed","schema_version":"1.0","event_id":"sha256:b12a47abaaa95296c6126bb43cf5bf999f810875fa24a9092dac1573ebd60aed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:YXFTR6BYBI23JMNLVLEO3NYGVT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Storage of Photonic Entanglement in a Crystal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Christoph Clausen, Felix Bussieres, Hugues de Riedmatten, Imam Usmani, Mikael Afzelius, Nicolas Gisin, Nicolas Sangouard","submitted_at":"2010-09-02T17:55:39Z","abstract_excerpt":"Entanglement is the fundamental characteristic of quantum physics. Large experimental efforts are devoted to harness entanglement between various physical systems. In particular, entanglement between light and material systems is interesting due to their prospective roles as \"flying\" and stationary qubits in future quantum information technologies, such as quantum repeaters and quantum networks. Here we report the first demonstration of entanglement between a photon at telecommunication wavelength and a single collective atomic excitation stored in a crystal. One photon from an energy-time ent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0489","kind":"arxiv","version":3},"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":"2026-05-18T04:28:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7+zYWNkQeeIx2RZaKSFfosy1akzvuV3binmlElSENlOaGSCRqPZKEnN+eOXdUyw56qpp3xa7XuyGL3DynAxYBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:32:50.689736Z"},"content_sha256":"947542a616bc0a8e8067cb8134045e884d502bd774e075b03406f071aec7ce49","schema_version":"1.0","event_id":"sha256:947542a616bc0a8e8067cb8134045e884d502bd774e075b03406f071aec7ce49"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YXFTR6BYBI23JMNLVLEO3NYGVT/bundle.json","state_url":"https://pith.science/pith/YXFTR6BYBI23JMNLVLEO3NYGVT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YXFTR6BYBI23JMNLVLEO3NYGVT/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":"2026-06-02T13:32:50Z","links":{"resolver":"https://pith.science/pith/YXFTR6BYBI23JMNLVLEO3NYGVT","bundle":"https://pith.science/pith/YXFTR6BYBI23JMNLVLEO3NYGVT/bundle.json","state":"https://pith.science/pith/YXFTR6BYBI23JMNLVLEO3NYGVT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YXFTR6BYBI23JMNLVLEO3NYGVT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:YXFTR6BYBI23JMNLVLEO3NYGVT","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":"2f7e182695ef70db7c6e8380f4782387d06375fcfb9a123aee9fb1136f79bb56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-02T17:55:39Z","title_canon_sha256":"cf5df560b9619ffa5a56bfbd7b045dbe60edfe1a7ef7a7aabeb1ce13ab857575"},"schema_version":"1.0","source":{"id":"1009.0489","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0489","created_at":"2026-05-18T04:28:21Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0489v3","created_at":"2026-05-18T04:28:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0489","created_at":"2026-05-18T04:28:21Z"},{"alias_kind":"pith_short_12","alias_value":"YXFTR6BYBI23","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"YXFTR6BYBI23JMNL","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"YXFTR6BY","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:947542a616bc0a8e8067cb8134045e884d502bd774e075b03406f071aec7ce49","target":"graph","created_at":"2026-05-18T04:28:21Z","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":"Entanglement is the fundamental characteristic of quantum physics. Large experimental efforts are devoted to harness entanglement between various physical systems. In particular, entanglement between light and material systems is interesting due to their prospective roles as \"flying\" and stationary qubits in future quantum information technologies, such as quantum repeaters and quantum networks. Here we report the first demonstration of entanglement between a photon at telecommunication wavelength and a single collective atomic excitation stored in a crystal. One photon from an energy-time ent","authors_text":"Christoph Clausen, Felix Bussieres, Hugues de Riedmatten, Imam Usmani, Mikael Afzelius, Nicolas Gisin, Nicolas Sangouard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-02T17:55:39Z","title":"Quantum Storage of Photonic Entanglement in a Crystal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0489","kind":"arxiv","version":3},"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:b12a47abaaa95296c6126bb43cf5bf999f810875fa24a9092dac1573ebd60aed","target":"record","created_at":"2026-05-18T04:28:21Z","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":"2f7e182695ef70db7c6e8380f4782387d06375fcfb9a123aee9fb1136f79bb56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-02T17:55:39Z","title_canon_sha256":"cf5df560b9619ffa5a56bfbd7b045dbe60edfe1a7ef7a7aabeb1ce13ab857575"},"schema_version":"1.0","source":{"id":"1009.0489","kind":"arxiv","version":3}},"canonical_sha256":"c5cb38f8380a35b4b1abaac8edb706acf8872c52319dc1e5b214c3794ceb348e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5cb38f8380a35b4b1abaac8edb706acf8872c52319dc1e5b214c3794ceb348e","first_computed_at":"2026-05-18T04:28:21.566707Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:28:21.566707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VFnMgEDydnN0RDhWmTgeLrLkL45j36Dsl5go8rK5+Lqibx2xszdhNx8BvOtiJJNhaCrA86GYkIpWTVcZzV3KBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:28:21.567154Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.0489","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b12a47abaaa95296c6126bb43cf5bf999f810875fa24a9092dac1573ebd60aed","sha256:947542a616bc0a8e8067cb8134045e884d502bd774e075b03406f071aec7ce49"],"state_sha256":"252d343ca9e789447af885e8d40e1af114182e768b8ebfdaf207b8c7a4ad46a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jZmfqqNzvGhDtnJAtLflZ7lF17rSdAiE+Bak7vjfUA+rC+hzR/mNKrJOL/8WFxdte0075qpFC1mIl7wnOL4qBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T13:32:50.691676Z","bundle_sha256":"f424c8401a26c1910bb624ae1f4cf9907c42cc615f1455af5db493e08d8e0b11"}}