{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:6XJLHFB45HJOLGFDIMNV6VCBY6","short_pith_number":"pith:6XJLHFB4","canonical_record":{"source":{"id":"2505.02424","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-05T07:42:52Z","cross_cats_sorted":[],"title_canon_sha256":"5dc53b1a6a7f5f425cd46321cbe5d14b3df275fda431f7c243e5d0de6dc8e6d6","abstract_canon_sha256":"6962711889b65ab9836779fb95239393b28d81dc9b1a41a23236ec37e78d11e3"},"schema_version":"1.0"},"canonical_sha256":"f5d2b3943ce9d2e598a3431b5f5441c7a6234f86905130a49a506f069960db80","source":{"kind":"arxiv","id":"2505.02424","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.02424","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"arxiv_version","alias_value":"2505.02424v1","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.02424","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"pith_short_12","alias_value":"6XJLHFB45HJO","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"pith_short_16","alias_value":"6XJLHFB45HJOLGFD","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"pith_short_8","alias_value":"6XJLHFB4","created_at":"2026-07-05T10:58:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:6XJLHFB45HJOLGFDIMNV6VCBY6","target":"record","payload":{"canonical_record":{"source":{"id":"2505.02424","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-05T07:42:52Z","cross_cats_sorted":[],"title_canon_sha256":"5dc53b1a6a7f5f425cd46321cbe5d14b3df275fda431f7c243e5d0de6dc8e6d6","abstract_canon_sha256":"6962711889b65ab9836779fb95239393b28d81dc9b1a41a23236ec37e78d11e3"},"schema_version":"1.0"},"canonical_sha256":"f5d2b3943ce9d2e598a3431b5f5441c7a6234f86905130a49a506f069960db80","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:58:36.831403Z","signature_b64":"g69st34oMJh34r1d/pMOX40RsqlLlR2IBdbahSUC8RBcg7wAthLTeSIeJqaX6ITjuZldghHb01albs5Yj4AsCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f5d2b3943ce9d2e598a3431b5f5441c7a6234f86905130a49a506f069960db80","last_reissued_at":"2026-07-05T10:58:36.830831Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:58:36.830831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.02424","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":"2026-07-05T10:58:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xz/YKc/jRT/VUw4syPJc3u3CfWUfIgqqJJgLFYCF3iuy9rYut5LHKac1Y6u8VvXDmt8FZV94u3YFecU4PmB8Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:21:55.994745Z"},"content_sha256":"da94b1333664ec3520fc2070f2a54a97ac26e1db9f8594abf70ad10ceec934ca","schema_version":"1.0","event_id":"sha256:da94b1333664ec3520fc2070f2a54a97ac26e1db9f8594abf70ad10ceec934ca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:6XJLHFB45HJOLGFDIMNV6VCBY6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Near-perfect broadband quantum memory enabled by intelligent spinwave compaction","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Guzhi Bao, Jinxian Guo, L. Q. Chen, Peiyu Yang, Weiping Zhang, Yuan Wu, Zeliang Wu","submitted_at":"2025-05-05T07:42:52Z","abstract_excerpt":"Quantum memory, a pivotal hub in quantum information processing, is expected to achieve high-performance storage and coherent manipulation of quantum states, with memory efficiency exceeding 90% and quantum fidelity surpassing the non-cloning limit. However, the current performance falls short of these requirements due to the inherent trade-off between memory efficiency enhancement and noise amplification, which not only imposes significant demands on quantum purification but also fundamentally impedes continuous-variable quantum information processing. In this paper, we break through these co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.02424","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.02424/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":"2026-07-05T10:58:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pZJ14BLht4+oqisapbuaO975KV511sZir753rq+x35Q0VaIFEMr0RQD8uFrnklIdLuNtBoiKME6WX/AGCAjfAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:21:55.995122Z"},"content_sha256":"98236d520fdb811a7ad2e8fa8290a08527c1cf5f1cbb8b9cc10664c3ded44cd4","schema_version":"1.0","event_id":"sha256:98236d520fdb811a7ad2e8fa8290a08527c1cf5f1cbb8b9cc10664c3ded44cd4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6XJLHFB45HJOLGFDIMNV6VCBY6/bundle.json","state_url":"https://pith.science/pith/6XJLHFB45HJOLGFDIMNV6VCBY6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6XJLHFB45HJOLGFDIMNV6VCBY6/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":"2026-07-07T12:21:55Z","links":{"resolver":"https://pith.science/pith/6XJLHFB45HJOLGFDIMNV6VCBY6","bundle":"https://pith.science/pith/6XJLHFB45HJOLGFDIMNV6VCBY6/bundle.json","state":"https://pith.science/pith/6XJLHFB45HJOLGFDIMNV6VCBY6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6XJLHFB45HJOLGFDIMNV6VCBY6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:6XJLHFB45HJOLGFDIMNV6VCBY6","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":"6962711889b65ab9836779fb95239393b28d81dc9b1a41a23236ec37e78d11e3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-05T07:42:52Z","title_canon_sha256":"5dc53b1a6a7f5f425cd46321cbe5d14b3df275fda431f7c243e5d0de6dc8e6d6"},"schema_version":"1.0","source":{"id":"2505.02424","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.02424","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"arxiv_version","alias_value":"2505.02424v1","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.02424","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"pith_short_12","alias_value":"6XJLHFB45HJO","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"pith_short_16","alias_value":"6XJLHFB45HJOLGFD","created_at":"2026-07-05T10:58:36Z"},{"alias_kind":"pith_short_8","alias_value":"6XJLHFB4","created_at":"2026-07-05T10:58:36Z"}],"graph_snapshots":[{"event_id":"sha256:98236d520fdb811a7ad2e8fa8290a08527c1cf5f1cbb8b9cc10664c3ded44cd4","target":"graph","created_at":"2026-07-05T10:58:36Z","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/2505.02424/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum memory, a pivotal hub in quantum information processing, is expected to achieve high-performance storage and coherent manipulation of quantum states, with memory efficiency exceeding 90% and quantum fidelity surpassing the non-cloning limit. However, the current performance falls short of these requirements due to the inherent trade-off between memory efficiency enhancement and noise amplification, which not only imposes significant demands on quantum purification but also fundamentally impedes continuous-variable quantum information processing. In this paper, we break through these co","authors_text":"Guzhi Bao, Jinxian Guo, L. Q. Chen, Peiyu Yang, Weiping Zhang, Yuan Wu, Zeliang Wu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-05T07:42:52Z","title":"Near-perfect broadband quantum memory enabled by intelligent spinwave compaction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.02424","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:da94b1333664ec3520fc2070f2a54a97ac26e1db9f8594abf70ad10ceec934ca","target":"record","created_at":"2026-07-05T10:58:36Z","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":"6962711889b65ab9836779fb95239393b28d81dc9b1a41a23236ec37e78d11e3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-05T07:42:52Z","title_canon_sha256":"5dc53b1a6a7f5f425cd46321cbe5d14b3df275fda431f7c243e5d0de6dc8e6d6"},"schema_version":"1.0","source":{"id":"2505.02424","kind":"arxiv","version":1}},"canonical_sha256":"f5d2b3943ce9d2e598a3431b5f5441c7a6234f86905130a49a506f069960db80","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5d2b3943ce9d2e598a3431b5f5441c7a6234f86905130a49a506f069960db80","first_computed_at":"2026-07-05T10:58:36.830831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:58:36.830831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g69st34oMJh34r1d/pMOX40RsqlLlR2IBdbahSUC8RBcg7wAthLTeSIeJqaX6ITjuZldghHb01albs5Yj4AsCw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:58:36.831403Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.02424","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da94b1333664ec3520fc2070f2a54a97ac26e1db9f8594abf70ad10ceec934ca","sha256:98236d520fdb811a7ad2e8fa8290a08527c1cf5f1cbb8b9cc10664c3ded44cd4"],"state_sha256":"fad002bc7b35f43b3625b4127d4e7dc6e8f5431e11a90815f1b929e100d7c435"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1QG/uesyVUI7Vzu591bZ4ImbcYKvFeyIfTtBc+biDvG0JyN8P8lLdNB62Jjdlm+gzuotIMuIxvo62kXPni6LCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:21:55.996938Z","bundle_sha256":"13917ee0661b108a14d31682f43a814b6755f51beaf8512cf364067d03630c5b"}}