{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:5QP764YGC3QM2KJ4W26CSQBRLX","short_pith_number":"pith:5QP764YG","canonical_record":{"source":{"id":"1906.10309","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-25T03:28:19Z","cross_cats_sorted":[],"title_canon_sha256":"a51be12e11c0e544b8e057a1354c660b84199f7ccec01d7752c215eff517f314","abstract_canon_sha256":"3426b11d3dfed10eaac6fada1ff3d6e9cccd33c45700fc8b8fc3432808bed9d0"},"schema_version":"1.0"},"canonical_sha256":"ec1fff730616e0cd293cb6bc2940315dc0b1c2d6388266fbd2750e3ba5f76956","source":{"kind":"arxiv","id":"1906.10309","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.10309","created_at":"2026-05-17T23:42:31Z"},{"alias_kind":"arxiv_version","alias_value":"1906.10309v1","created_at":"2026-05-17T23:42:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.10309","created_at":"2026-05-17T23:42:31Z"},{"alias_kind":"pith_short_12","alias_value":"5QP764YGC3QM","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"5QP764YGC3QM2KJ4","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"5QP764YG","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:5QP764YGC3QM2KJ4W26CSQBRLX","target":"record","payload":{"canonical_record":{"source":{"id":"1906.10309","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-25T03:28:19Z","cross_cats_sorted":[],"title_canon_sha256":"a51be12e11c0e544b8e057a1354c660b84199f7ccec01d7752c215eff517f314","abstract_canon_sha256":"3426b11d3dfed10eaac6fada1ff3d6e9cccd33c45700fc8b8fc3432808bed9d0"},"schema_version":"1.0"},"canonical_sha256":"ec1fff730616e0cd293cb6bc2940315dc0b1c2d6388266fbd2750e3ba5f76956","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:31.666726Z","signature_b64":"c2z9euKq7lFqeXbk+LPHePR10dlNQVPDkGlzbQQG7U07U3xv7kZMLnOETfIfCfG+APpioKrgDhAADRsyVatQBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec1fff730616e0cd293cb6bc2940315dc0b1c2d6388266fbd2750e3ba5f76956","last_reissued_at":"2026-05-17T23:42:31.666245Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:31.666245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.10309","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":"2026-05-17T23:42:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ycorBDEEJo3b3+uaUlItDrPVHQDmPm/P4LfjXAlsF2TTLoZYpmaqmtRA9EmiBQQGac5NM9gC09PWfu/gZwaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T03:26:29.595755Z"},"content_sha256":"4a4c6bb0803d29644de74a94bee9b6681ad2200e8a1f08c6659d4f3c97213b80","schema_version":"1.0","event_id":"sha256:4a4c6bb0803d29644de74a94bee9b6681ad2200e8a1f08c6659d4f3c97213b80"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:5QP764YGC3QM2KJ4W26CSQBRLX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of enhanced optical spin Hall effect in a vertical hyperbolic metamaterial","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Dasol Lee, Hui Joon Park, Junsuk Rho, Minkyung Kim, Tae Hak Kim, Younghwan Yang","submitted_at":"2019-06-25T03:28:19Z","abstract_excerpt":"Hyperbolic metamaterials, horizontally stacked metal and dielectric multilayer, have recently been studied as a platform to observe optical spin Hall effect. However, the large optical spin Hall effect in the horizontal hyperbolic metamaterials accompanies extremely low transmission, which obstructs its practical applications. Reducing the sample thickness to augment the transmission causes diminishment of the shift. In this letter, we demonstrate that a vertical hyperbolic metamaterial can enhance the shift by several orders of magnitude in comparison to the shift of its horizontal counterpar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.10309","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":"2026-05-17T23:42:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oDoEmowK+3KGoDeTgaZFsNjTLWJ9cZQd86dsnqFtphj/J8UXw8YnrIwOeHLJjPa7XCcVjtHyXLkH3BRLqHBjCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T03:26:29.596120Z"},"content_sha256":"45b5536c5b93b643ccd8b62cac30c88bf61501defc5ff6791f3b5d5506342d1b","schema_version":"1.0","event_id":"sha256:45b5536c5b93b643ccd8b62cac30c88bf61501defc5ff6791f3b5d5506342d1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5QP764YGC3QM2KJ4W26CSQBRLX/bundle.json","state_url":"https://pith.science/pith/5QP764YGC3QM2KJ4W26CSQBRLX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5QP764YGC3QM2KJ4W26CSQBRLX/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":"2026-06-27T03:26:29Z","links":{"resolver":"https://pith.science/pith/5QP764YGC3QM2KJ4W26CSQBRLX","bundle":"https://pith.science/pith/5QP764YGC3QM2KJ4W26CSQBRLX/bundle.json","state":"https://pith.science/pith/5QP764YGC3QM2KJ4W26CSQBRLX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5QP764YGC3QM2KJ4W26CSQBRLX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:5QP764YGC3QM2KJ4W26CSQBRLX","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":"3426b11d3dfed10eaac6fada1ff3d6e9cccd33c45700fc8b8fc3432808bed9d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-25T03:28:19Z","title_canon_sha256":"a51be12e11c0e544b8e057a1354c660b84199f7ccec01d7752c215eff517f314"},"schema_version":"1.0","source":{"id":"1906.10309","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.10309","created_at":"2026-05-17T23:42:31Z"},{"alias_kind":"arxiv_version","alias_value":"1906.10309v1","created_at":"2026-05-17T23:42:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.10309","created_at":"2026-05-17T23:42:31Z"},{"alias_kind":"pith_short_12","alias_value":"5QP764YGC3QM","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"5QP764YGC3QM2KJ4","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"5QP764YG","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:45b5536c5b93b643ccd8b62cac30c88bf61501defc5ff6791f3b5d5506342d1b","target":"graph","created_at":"2026-05-17T23:42:31Z","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":"Hyperbolic metamaterials, horizontally stacked metal and dielectric multilayer, have recently been studied as a platform to observe optical spin Hall effect. However, the large optical spin Hall effect in the horizontal hyperbolic metamaterials accompanies extremely low transmission, which obstructs its practical applications. Reducing the sample thickness to augment the transmission causes diminishment of the shift. In this letter, we demonstrate that a vertical hyperbolic metamaterial can enhance the shift by several orders of magnitude in comparison to the shift of its horizontal counterpar","authors_text":"Dasol Lee, Hui Joon Park, Junsuk Rho, Minkyung Kim, Tae Hak Kim, Younghwan Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-25T03:28:19Z","title":"Observation of enhanced optical spin Hall effect in a vertical hyperbolic metamaterial"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.10309","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":"sha256:4a4c6bb0803d29644de74a94bee9b6681ad2200e8a1f08c6659d4f3c97213b80","target":"record","created_at":"2026-05-17T23:42:31Z","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":"3426b11d3dfed10eaac6fada1ff3d6e9cccd33c45700fc8b8fc3432808bed9d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-06-25T03:28:19Z","title_canon_sha256":"a51be12e11c0e544b8e057a1354c660b84199f7ccec01d7752c215eff517f314"},"schema_version":"1.0","source":{"id":"1906.10309","kind":"arxiv","version":1}},"canonical_sha256":"ec1fff730616e0cd293cb6bc2940315dc0b1c2d6388266fbd2750e3ba5f76956","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec1fff730616e0cd293cb6bc2940315dc0b1c2d6388266fbd2750e3ba5f76956","first_computed_at":"2026-05-17T23:42:31.666245Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:31.666245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c2z9euKq7lFqeXbk+LPHePR10dlNQVPDkGlzbQQG7U07U3xv7kZMLnOETfIfCfG+APpioKrgDhAADRsyVatQBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:31.666726Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.10309","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a4c6bb0803d29644de74a94bee9b6681ad2200e8a1f08c6659d4f3c97213b80","sha256:45b5536c5b93b643ccd8b62cac30c88bf61501defc5ff6791f3b5d5506342d1b"],"state_sha256":"06cb4198dd51e168a6fc63084ac8a3377ced33b7f886930aa2a1df05c18df545"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kgzZhR0iUjojVIzau+su5EN8mWxn5RzWKyUrAX61TK4j1mf3UcQwb3lVs9v9f8yuELNYmLP5KtetEVS5MXQ6CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T03:26:29.598014Z","bundle_sha256":"8051354537abe9963f44e2df02bf4bacc37b9d754390d5deea6b8511462c54cf"}}