{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:YT444S372BFCYVFGZCBAUS2Y2S","short_pith_number":"pith:YT444S37","canonical_record":{"source":{"id":"1906.09552","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-23T04:37:00Z","cross_cats_sorted":[],"title_canon_sha256":"a0cc04faa3b6a87b112d74a11f875a623a3a1bc17e400e4e06fb50febaadbc2e","abstract_canon_sha256":"85f73496a93a4fa72f73ebf49017cbf3a701688ef2f454394258862f6c1902d2"},"schema_version":"1.0"},"canonical_sha256":"c4f9ce4b7fd04a2c54a6c8820a4b58d4ba1f53cefbc0659d45a229672b7f3294","source":{"kind":"arxiv","id":"1906.09552","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.09552","created_at":"2026-05-17T23:42:37Z"},{"alias_kind":"arxiv_version","alias_value":"1906.09552v1","created_at":"2026-05-17T23:42:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.09552","created_at":"2026-05-17T23:42:37Z"},{"alias_kind":"pith_short_12","alias_value":"YT444S372BFC","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"YT444S372BFCYVFG","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"YT444S37","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:YT444S372BFCYVFGZCBAUS2Y2S","target":"record","payload":{"canonical_record":{"source":{"id":"1906.09552","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-23T04:37:00Z","cross_cats_sorted":[],"title_canon_sha256":"a0cc04faa3b6a87b112d74a11f875a623a3a1bc17e400e4e06fb50febaadbc2e","abstract_canon_sha256":"85f73496a93a4fa72f73ebf49017cbf3a701688ef2f454394258862f6c1902d2"},"schema_version":"1.0"},"canonical_sha256":"c4f9ce4b7fd04a2c54a6c8820a4b58d4ba1f53cefbc0659d45a229672b7f3294","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:37.588589Z","signature_b64":"ShlvJuE/05Jccynr8y/z5Hrlvb8+uYlyeP2uMmA6K7IeQX747CWWWvKqB2CnboKxrbTINtRBj+xh6ixG6udMBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4f9ce4b7fd04a2c54a6c8820a4b58d4ba1f53cefbc0659d45a229672b7f3294","last_reissued_at":"2026-05-17T23:42:37.587832Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:37.587832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.09552","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":"2026-05-17T23:42:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nk9XnCAJrHar3WXUKky1whdparzqXzUffDd4WxCRKEi+7L7a8dZY4N06NSsMt0b0rxl3T6WlX6eBs1rWvYt2Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T06:16:31.686306Z"},"content_sha256":"6c1bc73567b538926102c59c0f4a4b04a775bd20052d714397aae85ba7606346","schema_version":"1.0","event_id":"sha256:6c1bc73567b538926102c59c0f4a4b04a775bd20052d714397aae85ba7606346"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:YT444S372BFCYVFGZCBAUS2Y2S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Cratered Photonic Crystal Cavity Mode for Nonlocal Exciton-Photon Interactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Chenjiang Qian, Jingnan Yang, Xin Xie, Xiulai Xu","submitted_at":"2019-06-23T04:37:00Z","abstract_excerpt":"Optical nanocavities for coherent interfaces usually have their electric field maximum at the center point, which normally benefits interactions with small local quantum emitters. Here, we propose a partial thickness modulation on 2D slab photonic crystal cavities for a cratered cavity mode function to improve nonlocal interactions. The thickness modulation is applied around the central region, and has little effect on the fringe electric field, which determines the coupling to waveguides or other cavities. Furthermore, the partial modulation enhances the cratered electric field at positions t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.09552","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":""},"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":"2026-05-17T23:42:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WC0DXdNzql1jEO7SvdtxnU0g6i3OKRMyeQoMU8yalDfHqx+F9P9xbHgZRCKRI+NfKU5JAE+wz1KDoRAe+fLmAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T06:16:31.686773Z"},"content_sha256":"5d290fc34452bf76eb01274bd82f39d508d5cd9df3739ffe3467f7f87fb13529","schema_version":"1.0","event_id":"sha256:5d290fc34452bf76eb01274bd82f39d508d5cd9df3739ffe3467f7f87fb13529"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YT444S372BFCYVFGZCBAUS2Y2S/bundle.json","state_url":"https://pith.science/pith/YT444S372BFCYVFGZCBAUS2Y2S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YT444S372BFCYVFGZCBAUS2Y2S/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":"2026-06-11T06:16:31Z","links":{"resolver":"https://pith.science/pith/YT444S372BFCYVFGZCBAUS2Y2S","bundle":"https://pith.science/pith/YT444S372BFCYVFGZCBAUS2Y2S/bundle.json","state":"https://pith.science/pith/YT444S372BFCYVFGZCBAUS2Y2S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YT444S372BFCYVFGZCBAUS2Y2S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YT444S372BFCYVFGZCBAUS2Y2S","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":"85f73496a93a4fa72f73ebf49017cbf3a701688ef2f454394258862f6c1902d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-23T04:37:00Z","title_canon_sha256":"a0cc04faa3b6a87b112d74a11f875a623a3a1bc17e400e4e06fb50febaadbc2e"},"schema_version":"1.0","source":{"id":"1906.09552","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.09552","created_at":"2026-05-17T23:42:37Z"},{"alias_kind":"arxiv_version","alias_value":"1906.09552v1","created_at":"2026-05-17T23:42:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.09552","created_at":"2026-05-17T23:42:37Z"},{"alias_kind":"pith_short_12","alias_value":"YT444S372BFC","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"YT444S372BFCYVFG","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"YT444S37","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:5d290fc34452bf76eb01274bd82f39d508d5cd9df3739ffe3467f7f87fb13529","target":"graph","created_at":"2026-05-17T23:42:37Z","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":"Optical nanocavities for coherent interfaces usually have their electric field maximum at the center point, which normally benefits interactions with small local quantum emitters. Here, we propose a partial thickness modulation on 2D slab photonic crystal cavities for a cratered cavity mode function to improve nonlocal interactions. The thickness modulation is applied around the central region, and has little effect on the fringe electric field, which determines the coupling to waveguides or other cavities. Furthermore, the partial modulation enhances the cratered electric field at positions t","authors_text":"Chenjiang Qian, Jingnan Yang, Xin Xie, Xiulai Xu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-23T04:37:00Z","title":"A Cratered Photonic Crystal Cavity Mode for Nonlocal Exciton-Photon Interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.09552","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":"sha256:6c1bc73567b538926102c59c0f4a4b04a775bd20052d714397aae85ba7606346","target":"record","created_at":"2026-05-17T23:42:37Z","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":"85f73496a93a4fa72f73ebf49017cbf3a701688ef2f454394258862f6c1902d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-23T04:37:00Z","title_canon_sha256":"a0cc04faa3b6a87b112d74a11f875a623a3a1bc17e400e4e06fb50febaadbc2e"},"schema_version":"1.0","source":{"id":"1906.09552","kind":"arxiv","version":1}},"canonical_sha256":"c4f9ce4b7fd04a2c54a6c8820a4b58d4ba1f53cefbc0659d45a229672b7f3294","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4f9ce4b7fd04a2c54a6c8820a4b58d4ba1f53cefbc0659d45a229672b7f3294","first_computed_at":"2026-05-17T23:42:37.587832Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:37.587832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ShlvJuE/05Jccynr8y/z5Hrlvb8+uYlyeP2uMmA6K7IeQX747CWWWvKqB2CnboKxrbTINtRBj+xh6ixG6udMBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:37.588589Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.09552","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c1bc73567b538926102c59c0f4a4b04a775bd20052d714397aae85ba7606346","sha256:5d290fc34452bf76eb01274bd82f39d508d5cd9df3739ffe3467f7f87fb13529"],"state_sha256":"78e57ebb5a9ffe99d3334e2bb733016bf8ff6b2b71a6fe0718f7ec74edcb7cbd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AJd92pQcNFkCVeGFibInEFgKbpLrM5WHvGsfeSAfDofrcnYrnLW8UbTOSo2B7FdQwMGa6BxOWc58q7YtF/I1Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T06:16:31.690168Z","bundle_sha256":"dca23c0c75700819e0641b0c7a781d8b40284cda1defddb21b446c99ffac5ce9"}}