{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZXCLQMF2SFUHFZHDXRPMWAJD64","short_pith_number":"pith:ZXCLQMF2","canonical_record":{"source":{"id":"1901.07126","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-01-22T00:14:42Z","cross_cats_sorted":[],"title_canon_sha256":"d3b056f0a2948502bc80620f1c6a3e3674aa805b89d5810b03d3d86f0aed9916","abstract_canon_sha256":"5033f2c35c6bd6b76ec88de37ee80895a6e9feedba2ca05a437c7c6085c08c56"},"schema_version":"1.0"},"canonical_sha256":"cdc4b830ba916872e4e3bc5ecb0123f709f761fc9ab1bbca573826eb84962de3","source":{"kind":"arxiv","id":"1901.07126","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.07126","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"arxiv_version","alias_value":"1901.07126v1","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.07126","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZXCLQMF2SFUH","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZXCLQMF2SFUHFZHD","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZXCLQMF2","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZXCLQMF2SFUHFZHDXRPMWAJD64","target":"record","payload":{"canonical_record":{"source":{"id":"1901.07126","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-01-22T00:14:42Z","cross_cats_sorted":[],"title_canon_sha256":"d3b056f0a2948502bc80620f1c6a3e3674aa805b89d5810b03d3d86f0aed9916","abstract_canon_sha256":"5033f2c35c6bd6b76ec88de37ee80895a6e9feedba2ca05a437c7c6085c08c56"},"schema_version":"1.0"},"canonical_sha256":"cdc4b830ba916872e4e3bc5ecb0123f709f761fc9ab1bbca573826eb84962de3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:33.602312Z","signature_b64":"tynDfIz/cf3EPYjd/UL3i9w0S1E2mymqM4tt/Hnff00nj94uB+hCDJaaYEuYD5CrmWv0Rd2KSdsY3Ca+UQEDBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cdc4b830ba916872e4e3bc5ecb0123f709f761fc9ab1bbca573826eb84962de3","last_reissued_at":"2026-05-17T23:40:33.601741Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:33.601741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.07126","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":"2026-05-17T23:40:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qmmw0XFWj9VuHLtPmpynlBWamzsR6zZOzEjzPYdsrVZPbKmMNgiFC/InunQDLoK+OzuJ00X8xbMsxbQ7DmZeCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T16:57:44.880295Z"},"content_sha256":"54f2232c24e60add33b173c3fbf5548ecd8079763b6aa00db17882b96d8a9f1d","schema_version":"1.0","event_id":"sha256:54f2232c24e60add33b173c3fbf5548ecd8079763b6aa00db17882b96d8a9f1d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZXCLQMF2SFUHFZHDXRPMWAJD64","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bound states in the continuum through environmental design","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alexander Cerjan, Chia Wei Hsu, Mikael C. Rechtsman","submitted_at":"2019-01-22T00:14:42Z","abstract_excerpt":"We propose a new paradigm for realizing bound states in the continuum (BICs) by engineering the environment of a system to control the number of available radiation channels. Using this method, we demonstrate that a photonic crystal slab embedded in a photonic crystal environment can exhibit both isolated points and lines of BICs in different regions of its Brillouin zone. Finally, we demonstrate that the intersection between a line of BICs and line of leaky resonance can yield exceptional points connected by a bulk Fermi arc. The ability to design the environment of a system opens up a broad "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.07126","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":"2026-05-17T23:40:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h28CrvgCNONpH/hp1sj4lQizyvidl4ihNIIR6fhYaxpwit5VTUHSWzfVjSMAtWE2RCNyI8mc50Dr2T2iwo4+BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T16:57:44.880899Z"},"content_sha256":"a486856e4caf3ace474ef3e96f93d255f57e9c2fdbda7ada65d9dd1a70ccf691","schema_version":"1.0","event_id":"sha256:a486856e4caf3ace474ef3e96f93d255f57e9c2fdbda7ada65d9dd1a70ccf691"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZXCLQMF2SFUHFZHDXRPMWAJD64/bundle.json","state_url":"https://pith.science/pith/ZXCLQMF2SFUHFZHDXRPMWAJD64/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZXCLQMF2SFUHFZHDXRPMWAJD64/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":"2026-06-11T16:57:44Z","links":{"resolver":"https://pith.science/pith/ZXCLQMF2SFUHFZHDXRPMWAJD64","bundle":"https://pith.science/pith/ZXCLQMF2SFUHFZHDXRPMWAJD64/bundle.json","state":"https://pith.science/pith/ZXCLQMF2SFUHFZHDXRPMWAJD64/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZXCLQMF2SFUHFZHDXRPMWAJD64/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZXCLQMF2SFUHFZHDXRPMWAJD64","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":"5033f2c35c6bd6b76ec88de37ee80895a6e9feedba2ca05a437c7c6085c08c56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-01-22T00:14:42Z","title_canon_sha256":"d3b056f0a2948502bc80620f1c6a3e3674aa805b89d5810b03d3d86f0aed9916"},"schema_version":"1.0","source":{"id":"1901.07126","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.07126","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"arxiv_version","alias_value":"1901.07126v1","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.07126","created_at":"2026-05-17T23:40:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZXCLQMF2SFUH","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZXCLQMF2SFUHFZHD","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZXCLQMF2","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:a486856e4caf3ace474ef3e96f93d255f57e9c2fdbda7ada65d9dd1a70ccf691","target":"graph","created_at":"2026-05-17T23:40:33Z","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":"We propose a new paradigm for realizing bound states in the continuum (BICs) by engineering the environment of a system to control the number of available radiation channels. Using this method, we demonstrate that a photonic crystal slab embedded in a photonic crystal environment can exhibit both isolated points and lines of BICs in different regions of its Brillouin zone. Finally, we demonstrate that the intersection between a line of BICs and line of leaky resonance can yield exceptional points connected by a bulk Fermi arc. The ability to design the environment of a system opens up a broad ","authors_text":"Alexander Cerjan, Chia Wei Hsu, Mikael C. Rechtsman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-01-22T00:14:42Z","title":"Bound states in the continuum through environmental design"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.07126","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":"sha256:54f2232c24e60add33b173c3fbf5548ecd8079763b6aa00db17882b96d8a9f1d","target":"record","created_at":"2026-05-17T23:40:33Z","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":"5033f2c35c6bd6b76ec88de37ee80895a6e9feedba2ca05a437c7c6085c08c56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-01-22T00:14:42Z","title_canon_sha256":"d3b056f0a2948502bc80620f1c6a3e3674aa805b89d5810b03d3d86f0aed9916"},"schema_version":"1.0","source":{"id":"1901.07126","kind":"arxiv","version":1}},"canonical_sha256":"cdc4b830ba916872e4e3bc5ecb0123f709f761fc9ab1bbca573826eb84962de3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cdc4b830ba916872e4e3bc5ecb0123f709f761fc9ab1bbca573826eb84962de3","first_computed_at":"2026-05-17T23:40:33.601741Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:33.601741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tynDfIz/cf3EPYjd/UL3i9w0S1E2mymqM4tt/Hnff00nj94uB+hCDJaaYEuYD5CrmWv0Rd2KSdsY3Ca+UQEDBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:33.602312Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.07126","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54f2232c24e60add33b173c3fbf5548ecd8079763b6aa00db17882b96d8a9f1d","sha256:a486856e4caf3ace474ef3e96f93d255f57e9c2fdbda7ada65d9dd1a70ccf691"],"state_sha256":"69dbf7caeff6a83606f94ec0b7afd12d1e94d4ecccf4db74946d32413558f97c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wrof/JqNho5ltNyeYu1vH97HE9e8iIUJmzAFEtWdNA9JK9GjH8fC3S2B2LiFcN2FOgwi8Acp+QLIngpIyYStCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T16:57:44.884910Z","bundle_sha256":"82baffb0e3169dda400c2d499061dec001b8f2d9a53796a25506bb3e292d5ae4"}}