{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:DGCYAB3PXVVF3QPHPXTDPCJTDG","short_pith_number":"pith:DGCYAB3P","canonical_record":{"source":{"id":"1811.02247","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-06T09:27:55Z","cross_cats_sorted":["nlin.PS"],"title_canon_sha256":"abfe4b7db86bf62fb5cdb43078c3f1938657343c157fd7e4ac7a07356e5acbd3","abstract_canon_sha256":"a0376e32717bbc153041280ea77df4b5c5ef1d5b5bd225dd6cd394d78c8915f0"},"schema_version":"1.0"},"canonical_sha256":"198580076fbd6a5dc1e77de637893319b07f9414679430ded9eac2a3a1c8a2b6","source":{"kind":"arxiv","id":"1811.02247","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.02247","created_at":"2026-05-17T23:58:47Z"},{"alias_kind":"arxiv_version","alias_value":"1811.02247v1","created_at":"2026-05-17T23:58:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.02247","created_at":"2026-05-17T23:58:47Z"},{"alias_kind":"pith_short_12","alias_value":"DGCYAB3PXVVF","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DGCYAB3PXVVF3QPH","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DGCYAB3P","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:DGCYAB3PXVVF3QPHPXTDPCJTDG","target":"record","payload":{"canonical_record":{"source":{"id":"1811.02247","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-06T09:27:55Z","cross_cats_sorted":["nlin.PS"],"title_canon_sha256":"abfe4b7db86bf62fb5cdb43078c3f1938657343c157fd7e4ac7a07356e5acbd3","abstract_canon_sha256":"a0376e32717bbc153041280ea77df4b5c5ef1d5b5bd225dd6cd394d78c8915f0"},"schema_version":"1.0"},"canonical_sha256":"198580076fbd6a5dc1e77de637893319b07f9414679430ded9eac2a3a1c8a2b6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:47.343352Z","signature_b64":"6/yXWHRQte+K1NETTmQe1866iL5TXd4wvFHw3Ob4ph0C1FjPDFK2iteiD43xAGyOwbg8HyHX6E1wglBsR6jgDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"198580076fbd6a5dc1e77de637893319b07f9414679430ded9eac2a3a1c8a2b6","last_reissued_at":"2026-05-17T23:58:47.342797Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:47.342797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.02247","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":"2026-05-17T23:58:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ANMhhEdBFw75MnXQSE//sXIk0T5Dzk1c2aoVVhf9dyT0N2nBiaDs1ItBG+nk+Kf6JjkLKf9mVVPswa3MwY75Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T02:41:08.807643Z"},"content_sha256":"b4256ef2e6089fd12e8057ca74e1683de18dc996be7a8c802ea9afda31c02a3a","schema_version":"1.0","event_id":"sha256:b4256ef2e6089fd12e8057ca74e1683de18dc996be7a8c802ea9afda31c02a3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:DGCYAB3PXVVF3QPHPXTDPCJTDG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coherent perfect absorber and laser for nonlinear waves in optical waveguide arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.PS"],"primary_cat":"physics.optics","authors_text":"Dmitry A. Zezyulin, Herwig Ott, Vladimir V. Konotop","submitted_at":"2018-11-06T09:27:55Z","abstract_excerpt":"A localized non-Hermitian potential can operate as a coherent perfect absorber or as a laser for nonlinear waves. The effect is illustrated for an array of optical waveguides, with the central waveguide being either active or absorbing. The arrays situated to the left and to the right from the center can have different characteristics. The result is generalized to setups with the central waveguide carrying additional nonlinear dissipation or gain and to the two-dimensional arrays with embedded one-dimensional absorbing or lasing sub-arrays."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.02247","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":"2026-05-17T23:58:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v0/M34woivGSsyLYqqXpuua66ONbbl46Qy2UKsUmO4dDYknWm9lbSJxtfTYYP5pZeRceNL/DbcHPMumhnehaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T02:41:08.808358Z"},"content_sha256":"18321f1b3485e3c60f18f616aabeaafe9fd22f06d9a890d4e2793a6e32da98cb","schema_version":"1.0","event_id":"sha256:18321f1b3485e3c60f18f616aabeaafe9fd22f06d9a890d4e2793a6e32da98cb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DGCYAB3PXVVF3QPHPXTDPCJTDG/bundle.json","state_url":"https://pith.science/pith/DGCYAB3PXVVF3QPHPXTDPCJTDG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DGCYAB3PXVVF3QPHPXTDPCJTDG/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":"2026-05-22T02:41:08Z","links":{"resolver":"https://pith.science/pith/DGCYAB3PXVVF3QPHPXTDPCJTDG","bundle":"https://pith.science/pith/DGCYAB3PXVVF3QPHPXTDPCJTDG/bundle.json","state":"https://pith.science/pith/DGCYAB3PXVVF3QPHPXTDPCJTDG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DGCYAB3PXVVF3QPHPXTDPCJTDG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DGCYAB3PXVVF3QPHPXTDPCJTDG","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":"a0376e32717bbc153041280ea77df4b5c5ef1d5b5bd225dd6cd394d78c8915f0","cross_cats_sorted":["nlin.PS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-06T09:27:55Z","title_canon_sha256":"abfe4b7db86bf62fb5cdb43078c3f1938657343c157fd7e4ac7a07356e5acbd3"},"schema_version":"1.0","source":{"id":"1811.02247","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.02247","created_at":"2026-05-17T23:58:47Z"},{"alias_kind":"arxiv_version","alias_value":"1811.02247v1","created_at":"2026-05-17T23:58:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.02247","created_at":"2026-05-17T23:58:47Z"},{"alias_kind":"pith_short_12","alias_value":"DGCYAB3PXVVF","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DGCYAB3PXVVF3QPH","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DGCYAB3P","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:18321f1b3485e3c60f18f616aabeaafe9fd22f06d9a890d4e2793a6e32da98cb","target":"graph","created_at":"2026-05-17T23:58:47Z","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":"A localized non-Hermitian potential can operate as a coherent perfect absorber or as a laser for nonlinear waves. The effect is illustrated for an array of optical waveguides, with the central waveguide being either active or absorbing. The arrays situated to the left and to the right from the center can have different characteristics. The result is generalized to setups with the central waveguide carrying additional nonlinear dissipation or gain and to the two-dimensional arrays with embedded one-dimensional absorbing or lasing sub-arrays.","authors_text":"Dmitry A. Zezyulin, Herwig Ott, Vladimir V. Konotop","cross_cats":["nlin.PS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-06T09:27:55Z","title":"Coherent perfect absorber and laser for nonlinear waves in optical waveguide arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.02247","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:b4256ef2e6089fd12e8057ca74e1683de18dc996be7a8c802ea9afda31c02a3a","target":"record","created_at":"2026-05-17T23:58:47Z","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":"a0376e32717bbc153041280ea77df4b5c5ef1d5b5bd225dd6cd394d78c8915f0","cross_cats_sorted":["nlin.PS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-11-06T09:27:55Z","title_canon_sha256":"abfe4b7db86bf62fb5cdb43078c3f1938657343c157fd7e4ac7a07356e5acbd3"},"schema_version":"1.0","source":{"id":"1811.02247","kind":"arxiv","version":1}},"canonical_sha256":"198580076fbd6a5dc1e77de637893319b07f9414679430ded9eac2a3a1c8a2b6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"198580076fbd6a5dc1e77de637893319b07f9414679430ded9eac2a3a1c8a2b6","first_computed_at":"2026-05-17T23:58:47.342797Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:47.342797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6/yXWHRQte+K1NETTmQe1866iL5TXd4wvFHw3Ob4ph0C1FjPDFK2iteiD43xAGyOwbg8HyHX6E1wglBsR6jgDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:47.343352Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.02247","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4256ef2e6089fd12e8057ca74e1683de18dc996be7a8c802ea9afda31c02a3a","sha256:18321f1b3485e3c60f18f616aabeaafe9fd22f06d9a890d4e2793a6e32da98cb"],"state_sha256":"b0b5a821fef5c1b71bc00d52ca3c26d8c03bb3923d76d23d97f00793a3d20c72"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1oHHz+skpZfitEMv51k/mA5u/vNMFKqi5iCYyqQmgqZdnFGk5tMjlNKMPcWEE0Xn87Y44fx8nJBEjYEjG5R1DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T02:41:08.812347Z","bundle_sha256":"a4d489578d9d0cf6ab95686744d964f80ead625dc067fbe3a8bbad3deed30011"}}