{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:H2GEADA3YHRJTKN5JRKM2XDZPW","short_pith_number":"pith:H2GEADA3","canonical_record":{"source":{"id":"2504.09863","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-04-14T04:19:17Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"700f3b35f8d15d96e9fbca20389c6a4165c17f3029b8d726b1e54ed442fbc7df","abstract_canon_sha256":"492c9076968ad23a1813e153e9c1012e49101bfa05a16046276e969087c40890"},"schema_version":"1.0"},"canonical_sha256":"3e8c400c1bc1e299a9bd4c54cd5c797d867fb0ee8d013467458f98a646818fdc","source":{"kind":"arxiv","id":"2504.09863","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.09863","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"arxiv_version","alias_value":"2504.09863v1","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.09863","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"pith_short_12","alias_value":"H2GEADA3YHRJ","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"pith_short_16","alias_value":"H2GEADA3YHRJTKN5","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"pith_short_8","alias_value":"H2GEADA3","created_at":"2026-07-05T10:48:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:H2GEADA3YHRJTKN5JRKM2XDZPW","target":"record","payload":{"canonical_record":{"source":{"id":"2504.09863","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-04-14T04:19:17Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"700f3b35f8d15d96e9fbca20389c6a4165c17f3029b8d726b1e54ed442fbc7df","abstract_canon_sha256":"492c9076968ad23a1813e153e9c1012e49101bfa05a16046276e969087c40890"},"schema_version":"1.0"},"canonical_sha256":"3e8c400c1bc1e299a9bd4c54cd5c797d867fb0ee8d013467458f98a646818fdc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:48:43.961824Z","signature_b64":"SnmXYdDR0jukHrAS8Bcw0IrYIDPY9Gro8UmJ3Lj1mQQjCJWy0GhCl/Y0FY3Bv1V88TRH+fEKGQZNHVN0poMtBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e8c400c1bc1e299a9bd4c54cd5c797d867fb0ee8d013467458f98a646818fdc","last_reissued_at":"2026-07-05T10:48:43.961375Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:48:43.961375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.09863","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":"2026-07-05T10:48:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nGBruZdfwVgpaJFtIWnEiVv1083rufrg5m/mYKlqo1lNc/prpI5QrKuW2l8nAlMwn3dIkWZnZGM45GuH/ZHVDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T03:43:18.592550Z"},"content_sha256":"16131c96c456d7ebdedf1d559bac0a20fe3b4ea6f821ba132a0e63a67d65de1c","schema_version":"1.0","event_id":"sha256:16131c96c456d7ebdedf1d559bac0a20fe3b4ea6f821ba132a0e63a67d65de1c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:H2GEADA3YHRJTKN5JRKM2XDZPW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Investigation of Rare-Earth Ion-Photon Interaction and Strong Coupling in Optical Microcavities","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Changkui Duan, Junyu Guan, Kangwei Xia, Li Qian, Quanshen Shen, Wentao Ji, Ya Wang, Zihua Chai","submitted_at":"2025-04-14T04:19:17Z","abstract_excerpt":"The strong coupling between an emitter and a cavity is significant for advancing quantum networks. Due to their long optical and spin coherence times, rare-earth ions (REIs) represent a compelling platform for quantum networks. However, their inherently weak intra-4f optical transitions typically result in low coupling strength, thus restricting most current achievements to the weak coupling regime. This work proposes a scheme to realize an on-chip quantum network by coupling REIs to high-quality whispering gallery mode (WGM) microcavities. Additionally, we provide numerical validation for a p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.09863","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/2504.09863/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":"2026-07-05T10:48:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NKo5E55KH4HyNYykeIMhfkXCS063aqLboyAzkUhqp1qz7myw7okNqmd7EPEaaAkBT0gF4i9iVk/5FjL8LK1BCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T03:43:18.593248Z"},"content_sha256":"8ed93586342616a06e81301cfcea501e23e315a83cda782901febe53810d757f","schema_version":"1.0","event_id":"sha256:8ed93586342616a06e81301cfcea501e23e315a83cda782901febe53810d757f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H2GEADA3YHRJTKN5JRKM2XDZPW/bundle.json","state_url":"https://pith.science/pith/H2GEADA3YHRJTKN5JRKM2XDZPW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H2GEADA3YHRJTKN5JRKM2XDZPW/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":"2026-08-24T03:43:18Z","links":{"resolver":"https://pith.science/pith/H2GEADA3YHRJTKN5JRKM2XDZPW","bundle":"https://pith.science/pith/H2GEADA3YHRJTKN5JRKM2XDZPW/bundle.json","state":"https://pith.science/pith/H2GEADA3YHRJTKN5JRKM2XDZPW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H2GEADA3YHRJTKN5JRKM2XDZPW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:H2GEADA3YHRJTKN5JRKM2XDZPW","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":"492c9076968ad23a1813e153e9c1012e49101bfa05a16046276e969087c40890","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-04-14T04:19:17Z","title_canon_sha256":"700f3b35f8d15d96e9fbca20389c6a4165c17f3029b8d726b1e54ed442fbc7df"},"schema_version":"1.0","source":{"id":"2504.09863","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.09863","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"arxiv_version","alias_value":"2504.09863v1","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.09863","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"pith_short_12","alias_value":"H2GEADA3YHRJ","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"pith_short_16","alias_value":"H2GEADA3YHRJTKN5","created_at":"2026-07-05T10:48:43Z"},{"alias_kind":"pith_short_8","alias_value":"H2GEADA3","created_at":"2026-07-05T10:48:43Z"}],"graph_snapshots":[{"event_id":"sha256:8ed93586342616a06e81301cfcea501e23e315a83cda782901febe53810d757f","target":"graph","created_at":"2026-07-05T10:48:43Z","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/2504.09863/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The strong coupling between an emitter and a cavity is significant for advancing quantum networks. Due to their long optical and spin coherence times, rare-earth ions (REIs) represent a compelling platform for quantum networks. However, their inherently weak intra-4f optical transitions typically result in low coupling strength, thus restricting most current achievements to the weak coupling regime. This work proposes a scheme to realize an on-chip quantum network by coupling REIs to high-quality whispering gallery mode (WGM) microcavities. Additionally, we provide numerical validation for a p","authors_text":"Changkui Duan, Junyu Guan, Kangwei Xia, Li Qian, Quanshen Shen, Wentao Ji, Ya Wang, Zihua Chai","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-04-14T04:19:17Z","title":"Investigation of Rare-Earth Ion-Photon Interaction and Strong Coupling in Optical Microcavities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.09863","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":"sha256:16131c96c456d7ebdedf1d559bac0a20fe3b4ea6f821ba132a0e63a67d65de1c","target":"record","created_at":"2026-07-05T10:48:43Z","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":"492c9076968ad23a1813e153e9c1012e49101bfa05a16046276e969087c40890","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-04-14T04:19:17Z","title_canon_sha256":"700f3b35f8d15d96e9fbca20389c6a4165c17f3029b8d726b1e54ed442fbc7df"},"schema_version":"1.0","source":{"id":"2504.09863","kind":"arxiv","version":1}},"canonical_sha256":"3e8c400c1bc1e299a9bd4c54cd5c797d867fb0ee8d013467458f98a646818fdc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e8c400c1bc1e299a9bd4c54cd5c797d867fb0ee8d013467458f98a646818fdc","first_computed_at":"2026-07-05T10:48:43.961375Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:48:43.961375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SnmXYdDR0jukHrAS8Bcw0IrYIDPY9Gro8UmJ3Lj1mQQjCJWy0GhCl/Y0FY3Bv1V88TRH+fEKGQZNHVN0poMtBw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:48:43.961824Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.09863","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16131c96c456d7ebdedf1d559bac0a20fe3b4ea6f821ba132a0e63a67d65de1c","sha256:8ed93586342616a06e81301cfcea501e23e315a83cda782901febe53810d757f"],"state_sha256":"c0fb1d137172fcdc5ffc1c199fd7a536cee74309b3c7682eb30c6d41859a7778"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R9k1pQMnGRljcCny6opxQvii//ThG3N79P8b52OSLSlPOlLdv+yhZzvo4wSUP8BH8KWfWhOIUVjYt3ECR5fPBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-24T03:43:18.599042Z","bundle_sha256":"6a60a0b8c9eb5dda8d9426c841558124dc267227d9e875e45f5f98b065291b11"}}