{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2B6BAPPHQYMWZYOYDY4RMOUEUD","short_pith_number":"pith:2B6BAPPH","canonical_record":{"source":{"id":"2406.12201","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-06-18T01:58:10Z","cross_cats_sorted":[],"title_canon_sha256":"0fe8ade9df3194ed22480d1fa610be14c41950f93fa95db93d79ff5e3bfa3492","abstract_canon_sha256":"6a692e1554df47120093bd573ca3c36f7679a9fee786346ad5f01381cd38cc01"},"schema_version":"1.0"},"canonical_sha256":"d07c103de786196ce1d81e39163a84a0f38fbf2797aa5ed1cb90674cfb320db8","source":{"kind":"arxiv","id":"2406.12201","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.12201","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"arxiv_version","alias_value":"2406.12201v1","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.12201","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"pith_short_12","alias_value":"2B6BAPPHQYMW","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"pith_short_16","alias_value":"2B6BAPPHQYMWZYOY","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"pith_short_8","alias_value":"2B6BAPPH","created_at":"2026-07-05T08:33:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2B6BAPPHQYMWZYOYDY4RMOUEUD","target":"record","payload":{"canonical_record":{"source":{"id":"2406.12201","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-06-18T01:58:10Z","cross_cats_sorted":[],"title_canon_sha256":"0fe8ade9df3194ed22480d1fa610be14c41950f93fa95db93d79ff5e3bfa3492","abstract_canon_sha256":"6a692e1554df47120093bd573ca3c36f7679a9fee786346ad5f01381cd38cc01"},"schema_version":"1.0"},"canonical_sha256":"d07c103de786196ce1d81e39163a84a0f38fbf2797aa5ed1cb90674cfb320db8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:33:42.144726Z","signature_b64":"R5DgL6c6X23YYE2nAeVQTvK/osNem9DmceqWVN+P/foYFMtWl+jYBuwc1IWTZ2lTVGnELGVkfdFs3IqBGEeIDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d07c103de786196ce1d81e39163a84a0f38fbf2797aa5ed1cb90674cfb320db8","last_reissued_at":"2026-07-05T08:33:42.144256Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:33:42.144256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.12201","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":"2026-07-05T08:33:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z3h/FGtv32T8dxIHhHU5wZzazJGTrEn2cQljkf52O1pIfBV8gMVnm+qVQ3J28Mx3W3y4wPqOeAEGIwoMGAtRBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:26:33.435506Z"},"content_sha256":"43987ebcff43f5f2d81400747de96494693ed3a1c1217b233e43e99eced2e6ef","schema_version":"1.0","event_id":"sha256:43987ebcff43f5f2d81400747de96494693ed3a1c1217b233e43e99eced2e6ef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2B6BAPPHQYMWZYOYDY4RMOUEUD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Duan-Kimble cavity-atom quantum memory loading scheme revisited","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Clark Embleton, Jeffrey H. Shapiro, Michael G. Raymer","submitted_at":"2024-06-18T01:58:10Z","abstract_excerpt":"We reexamine the well-known Duan-Kimble entanglement scheme, wherein the state of a single-photon qubit is entangled with a quantum memory consisting of a single-atom qubit in a strongly coupled optical cavity, providing the capability to load the photon's state into the memory. We correct a common error appearing in some subsequent papers regarding the validity of the single-photon reflectivity function that characterizes the essential phase shift at the heart of the protocol. Using the validated analytical solution, we introduce an improved scheme-the push-pull configuration-where the photon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.12201","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/2406.12201/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":"2026-07-05T08:33:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5UHHiutmPX0qqx5QaWKlzeIlTQMk+60JF9+83Qq90i+F3YdwLnzR0w/T4auB75yYj6AqZYH4nbVn1JyFDsyICw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:26:33.435905Z"},"content_sha256":"406d216bf3bba9faf890cee960523f3cb48bcbc1bca8a5b4a485912019938bf0","schema_version":"1.0","event_id":"sha256:406d216bf3bba9faf890cee960523f3cb48bcbc1bca8a5b4a485912019938bf0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2B6BAPPHQYMWZYOYDY4RMOUEUD/bundle.json","state_url":"https://pith.science/pith/2B6BAPPHQYMWZYOYDY4RMOUEUD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2B6BAPPHQYMWZYOYDY4RMOUEUD/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":"2026-07-07T15:26:33Z","links":{"resolver":"https://pith.science/pith/2B6BAPPHQYMWZYOYDY4RMOUEUD","bundle":"https://pith.science/pith/2B6BAPPHQYMWZYOYDY4RMOUEUD/bundle.json","state":"https://pith.science/pith/2B6BAPPHQYMWZYOYDY4RMOUEUD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2B6BAPPHQYMWZYOYDY4RMOUEUD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2B6BAPPHQYMWZYOYDY4RMOUEUD","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":"6a692e1554df47120093bd573ca3c36f7679a9fee786346ad5f01381cd38cc01","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-06-18T01:58:10Z","title_canon_sha256":"0fe8ade9df3194ed22480d1fa610be14c41950f93fa95db93d79ff5e3bfa3492"},"schema_version":"1.0","source":{"id":"2406.12201","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.12201","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"arxiv_version","alias_value":"2406.12201v1","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.12201","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"pith_short_12","alias_value":"2B6BAPPHQYMW","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"pith_short_16","alias_value":"2B6BAPPHQYMWZYOY","created_at":"2026-07-05T08:33:42Z"},{"alias_kind":"pith_short_8","alias_value":"2B6BAPPH","created_at":"2026-07-05T08:33:42Z"}],"graph_snapshots":[{"event_id":"sha256:406d216bf3bba9faf890cee960523f3cb48bcbc1bca8a5b4a485912019938bf0","target":"graph","created_at":"2026-07-05T08:33:42Z","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/2406.12201/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We reexamine the well-known Duan-Kimble entanglement scheme, wherein the state of a single-photon qubit is entangled with a quantum memory consisting of a single-atom qubit in a strongly coupled optical cavity, providing the capability to load the photon's state into the memory. We correct a common error appearing in some subsequent papers regarding the validity of the single-photon reflectivity function that characterizes the essential phase shift at the heart of the protocol. Using the validated analytical solution, we introduce an improved scheme-the push-pull configuration-where the photon","authors_text":"Clark Embleton, Jeffrey H. Shapiro, Michael G. Raymer","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-06-18T01:58:10Z","title":"The Duan-Kimble cavity-atom quantum memory loading scheme revisited"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.12201","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":"sha256:43987ebcff43f5f2d81400747de96494693ed3a1c1217b233e43e99eced2e6ef","target":"record","created_at":"2026-07-05T08:33:42Z","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":"6a692e1554df47120093bd573ca3c36f7679a9fee786346ad5f01381cd38cc01","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-06-18T01:58:10Z","title_canon_sha256":"0fe8ade9df3194ed22480d1fa610be14c41950f93fa95db93d79ff5e3bfa3492"},"schema_version":"1.0","source":{"id":"2406.12201","kind":"arxiv","version":1}},"canonical_sha256":"d07c103de786196ce1d81e39163a84a0f38fbf2797aa5ed1cb90674cfb320db8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d07c103de786196ce1d81e39163a84a0f38fbf2797aa5ed1cb90674cfb320db8","first_computed_at":"2026-07-05T08:33:42.144256Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:33:42.144256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R5DgL6c6X23YYE2nAeVQTvK/osNem9DmceqWVN+P/foYFMtWl+jYBuwc1IWTZ2lTVGnELGVkfdFs3IqBGEeIDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:33:42.144726Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.12201","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43987ebcff43f5f2d81400747de96494693ed3a1c1217b233e43e99eced2e6ef","sha256:406d216bf3bba9faf890cee960523f3cb48bcbc1bca8a5b4a485912019938bf0"],"state_sha256":"bfce5818243c9be49cf83dd1bfe1bbce82f84be517561d3377e7f5bf3caec03f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"csKwkaX8iDLROHdkAKp8iBiQxouRIdJGV9HCdY76+6+I3F7yPaKwBST1iA6BeTRLW+crOOK9wA/6q3wREj3qAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:26:33.438176Z","bundle_sha256":"79a1692c81f889cd51fb445569eecacd29f7b2016826c2b368537a9d197f2151"}}