{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:K4B5O6Y625SZ5K3ZJTB52UU3H4","short_pith_number":"pith:K4B5O6Y6","canonical_record":{"source":{"id":"2511.13375","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-11-17T13:49:28Z","cross_cats_sorted":[],"title_canon_sha256":"12979c52253f00f79734be9936ffe952875c7577dcef59725ee9fd3d8c6c4cae","abstract_canon_sha256":"33bdba2aecae9a95ce0a3c67efd4f821a881bca7d958e35aa6622d5e0540ca06"},"schema_version":"1.0"},"canonical_sha256":"5703d77b1ed7659eab794cc3dd529b3f2c296338b9c149b8815aaa14de0ae9be","source":{"kind":"arxiv","id":"2511.13375","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.13375","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"arxiv_version","alias_value":"2511.13375v1","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.13375","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"pith_short_12","alias_value":"K4B5O6Y625SZ","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"pith_short_16","alias_value":"K4B5O6Y625SZ5K3Z","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"pith_short_8","alias_value":"K4B5O6Y6","created_at":"2026-06-30T02:18:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:K4B5O6Y625SZ5K3ZJTB52UU3H4","target":"record","payload":{"canonical_record":{"source":{"id":"2511.13375","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-11-17T13:49:28Z","cross_cats_sorted":[],"title_canon_sha256":"12979c52253f00f79734be9936ffe952875c7577dcef59725ee9fd3d8c6c4cae","abstract_canon_sha256":"33bdba2aecae9a95ce0a3c67efd4f821a881bca7d958e35aa6622d5e0540ca06"},"schema_version":"1.0"},"canonical_sha256":"5703d77b1ed7659eab794cc3dd529b3f2c296338b9c149b8815aaa14de0ae9be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-30T02:18:05.358809Z","signature_b64":"pLKOqxH+pA9Y6lviTmJk6FJekMyyje1Wn87m+E6gESqgxNZ0X8kwIqDIuvENXhNBwneKaEO1ndpo+O6QoZ0aAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5703d77b1ed7659eab794cc3dd529b3f2c296338b9c149b8815aaa14de0ae9be","last_reissued_at":"2026-06-30T02:18:05.358052Z","signature_status":"signed_v1","first_computed_at":"2026-06-30T02:18:05.358052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2511.13375","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":"2026-06-30T02:18:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q/BTkBIzsR+VmB1MX3cxn82GQiLG0BLoxyxm+dRnHlT0mLUEIECctGCWmEyE/U07KvHRcfV+iFTAYvrUaQfDBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T06:56:09.673277Z"},"content_sha256":"6da5e423344b2ed8a9a7c99e8d80b7ae053346d2cd3c1296c85cf123688ff9ee","schema_version":"1.0","event_id":"sha256:6da5e423344b2ed8a9a7c99e8d80b7ae053346d2cd3c1296c85cf123688ff9ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:K4B5O6Y625SZ5K3ZJTB52UU3H4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Above-Unity Coherent Cooperativity of Tin-Vacancy Centers in Diamond Photonic Crystal Cavities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Caroline E. Smulders, Christian F. Primavera, Daniel Bedialauneta Rodriguez, Leonardo G. C. Wienhoven, Lorenzo De Santis, Matteo Pasini, Maximilian Ruf, Nina Codreanu, Ronald Hanson, Simon Gr\\\"oblacher, Tim Turan","submitted_at":"2025-11-17T13:49:28Z","abstract_excerpt":"The tin-vacancy center in diamond (SnV) has emerged as a compelling building block for realizing next-generation quantum networks thanks to its excellent optical and spin properties. Coupling to photonic crystal cavities (PCCs) promises to further enhance the SnV light-matter interface and unlock a diverse range of entanglement generation protocols. Recent pioneering experiments showing Purcell enhancement of SnV centers in PCCs underscore this potential. However, optical coupling that is coherent - the key ingredient for use in quantum protocols - has so far remained elusive. Here, we demonst"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.13375","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/2511.13375/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":"2026-06-30T02:18:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PTl2tRxccPWdmzzZ45EeQJXgv0nk5HfNO34inwRTOHYLbf4a+2o4Xst6aw8gHClPEbAQsm7YIjRzPktfrld7Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T06:56:09.673663Z"},"content_sha256":"89d194aa4951c06fef41b4304fb4143ed4c049b31159bd4c9178227302d6b08a","schema_version":"1.0","event_id":"sha256:89d194aa4951c06fef41b4304fb4143ed4c049b31159bd4c9178227302d6b08a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K4B5O6Y625SZ5K3ZJTB52UU3H4/bundle.json","state_url":"https://pith.science/pith/K4B5O6Y625SZ5K3ZJTB52UU3H4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K4B5O6Y625SZ5K3ZJTB52UU3H4/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":"2026-07-03T06:56:09Z","links":{"resolver":"https://pith.science/pith/K4B5O6Y625SZ5K3ZJTB52UU3H4","bundle":"https://pith.science/pith/K4B5O6Y625SZ5K3ZJTB52UU3H4/bundle.json","state":"https://pith.science/pith/K4B5O6Y625SZ5K3ZJTB52UU3H4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K4B5O6Y625SZ5K3ZJTB52UU3H4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:K4B5O6Y625SZ5K3ZJTB52UU3H4","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":"33bdba2aecae9a95ce0a3c67efd4f821a881bca7d958e35aa6622d5e0540ca06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-11-17T13:49:28Z","title_canon_sha256":"12979c52253f00f79734be9936ffe952875c7577dcef59725ee9fd3d8c6c4cae"},"schema_version":"1.0","source":{"id":"2511.13375","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.13375","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"arxiv_version","alias_value":"2511.13375v1","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.13375","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"pith_short_12","alias_value":"K4B5O6Y625SZ","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"pith_short_16","alias_value":"K4B5O6Y625SZ5K3Z","created_at":"2026-06-30T02:18:05Z"},{"alias_kind":"pith_short_8","alias_value":"K4B5O6Y6","created_at":"2026-06-30T02:18:05Z"}],"graph_snapshots":[{"event_id":"sha256:89d194aa4951c06fef41b4304fb4143ed4c049b31159bd4c9178227302d6b08a","target":"graph","created_at":"2026-06-30T02:18:05Z","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/2511.13375/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The tin-vacancy center in diamond (SnV) has emerged as a compelling building block for realizing next-generation quantum networks thanks to its excellent optical and spin properties. Coupling to photonic crystal cavities (PCCs) promises to further enhance the SnV light-matter interface and unlock a diverse range of entanglement generation protocols. Recent pioneering experiments showing Purcell enhancement of SnV centers in PCCs underscore this potential. However, optical coupling that is coherent - the key ingredient for use in quantum protocols - has so far remained elusive. Here, we demonst","authors_text":"Caroline E. Smulders, Christian F. Primavera, Daniel Bedialauneta Rodriguez, Leonardo G. C. Wienhoven, Lorenzo De Santis, Matteo Pasini, Maximilian Ruf, Nina Codreanu, Ronald Hanson, Simon Gr\\\"oblacher, Tim Turan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-11-17T13:49:28Z","title":"Above-Unity Coherent Cooperativity of Tin-Vacancy Centers in Diamond Photonic Crystal Cavities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.13375","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":"sha256:6da5e423344b2ed8a9a7c99e8d80b7ae053346d2cd3c1296c85cf123688ff9ee","target":"record","created_at":"2026-06-30T02:18:05Z","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":"33bdba2aecae9a95ce0a3c67efd4f821a881bca7d958e35aa6622d5e0540ca06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-11-17T13:49:28Z","title_canon_sha256":"12979c52253f00f79734be9936ffe952875c7577dcef59725ee9fd3d8c6c4cae"},"schema_version":"1.0","source":{"id":"2511.13375","kind":"arxiv","version":1}},"canonical_sha256":"5703d77b1ed7659eab794cc3dd529b3f2c296338b9c149b8815aaa14de0ae9be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5703d77b1ed7659eab794cc3dd529b3f2c296338b9c149b8815aaa14de0ae9be","first_computed_at":"2026-06-30T02:18:05.358052Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-30T02:18:05.358052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pLKOqxH+pA9Y6lviTmJk6FJekMyyje1Wn87m+E6gESqgxNZ0X8kwIqDIuvENXhNBwneKaEO1ndpo+O6QoZ0aAg==","signature_status":"signed_v1","signed_at":"2026-06-30T02:18:05.358809Z","signed_message":"canonical_sha256_bytes"},"source_id":"2511.13375","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6da5e423344b2ed8a9a7c99e8d80b7ae053346d2cd3c1296c85cf123688ff9ee","sha256:89d194aa4951c06fef41b4304fb4143ed4c049b31159bd4c9178227302d6b08a"],"state_sha256":"e4338e2c33535fee3515a7a4a25cc363cf8e87ca179dd8aa2c98a7889ae74aa5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yX4otA0sbFdi/h1nRUcWFSDAUPUJ0GuV3IXXIZZvWSqqyCvQRNI0uKbMt1PQf3fdunCLFus7ylVBv3pZaqurDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T06:56:09.675587Z","bundle_sha256":"4c2cff57edd1caa784bf43cdb588c9f28690bf59da45f4f85587f8a73674ab15"}}