{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:XHUJEBX75OW6DKZGUG2JB7D3VV","short_pith_number":"pith:XHUJEBX7","canonical_record":{"source":{"id":"1908.06495","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-18T18:15:54Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"6f6e2d7b30234c707c9434f8f3fe3789d3e8af208d79e9402350d0c0d7fff352","abstract_canon_sha256":"dfc7c815cf8369d2374b1ad81ff5dfba2230d72f346cfadee9653cf01e1ba319"},"schema_version":"1.0"},"canonical_sha256":"b9e89206ffebade1ab26a1b490fc7bad733bf62004da418ea5c74b9b216a0261","source":{"kind":"arxiv","id":"1908.06495","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06495","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06495v1","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06495","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"pith_short_12","alias_value":"XHUJEBX75OW6","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"pith_short_16","alias_value":"XHUJEBX75OW6DKZG","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"pith_short_8","alias_value":"XHUJEBX7","created_at":"2026-07-05T00:13:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:XHUJEBX75OW6DKZGUG2JB7D3VV","target":"record","payload":{"canonical_record":{"source":{"id":"1908.06495","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-18T18:15:54Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"6f6e2d7b30234c707c9434f8f3fe3789d3e8af208d79e9402350d0c0d7fff352","abstract_canon_sha256":"dfc7c815cf8369d2374b1ad81ff5dfba2230d72f346cfadee9653cf01e1ba319"},"schema_version":"1.0"},"canonical_sha256":"b9e89206ffebade1ab26a1b490fc7bad733bf62004da418ea5c74b9b216a0261","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:13:53.379676Z","signature_b64":"rSy2IoVEF+BTpttKLC1tuT2uyTycuqcGKSx7adNCzQ+/I7SrGFRl6QJGdJzI4p9oYPXfo4m0gRmbsCoPM5mtAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9e89206ffebade1ab26a1b490fc7bad733bf62004da418ea5c74b9b216a0261","last_reissued_at":"2026-07-05T00:13:53.379332Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:13:53.379332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.06495","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":"2026-07-05T00:13:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J6j46l0gHgnuSpuBbw8Wml0vCC1FJ+ObNJJ0+sQufok7Q/vNthrXswI99rHjh8sbpJz1lhmNPaMIRrb8h96qAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:50:37.740487Z"},"content_sha256":"1b8a83fd4c8f97e59e68ddfde669175856f1db81b2805dcf31bf5558932ba56e","schema_version":"1.0","event_id":"sha256:1b8a83fd4c8f97e59e68ddfde669175856f1db81b2805dcf31bf5558932ba56e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:XHUJEBX75OW6DKZGUG2JB7D3VV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-Speed Phase-Only Spatial Light Modulators with Two-Dimensional Tunable Microcavity Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"physics.optics","authors_text":"Cheng Peng, Dirk Englund, Mohammad Soltani, Ryan Hamerly","submitted_at":"2019-08-18T18:15:54Z","abstract_excerpt":"Spatial light modulators (SLMs) are central to numerous applications ranging from high-speed displays to adaptive optics, structured illumination microscopy, and holography. After decades of advances, SLM arrays based on liquid crystals can now reach large pixel counts exceeding 10^6 with phase-only modulation with a pixel pitch of less than 10 {\\mu}m and reflectance around 75%. However, the rather slow modulation speed in such SLMs (below hundreds of Hz) presents limitations for many applications. Here we propose an SLM architecture that can achieve high pixel count with high-resolution phase"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06495","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/1908.06495/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":"2026-07-05T00:13:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2qgTo3zdl51/KODL7eMvXvOiv108BTVlXbhU6IoRRSN21ceX8FpK4QQVTsXXj9NDtl2S0+C/WEtf1FrpfdFpCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:50:37.741087Z"},"content_sha256":"89d308070217125cd74343b1a2404f855ed6f15f1b9d0773f8db4fd490476b23","schema_version":"1.0","event_id":"sha256:89d308070217125cd74343b1a2404f855ed6f15f1b9d0773f8db4fd490476b23"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHUJEBX75OW6DKZGUG2JB7D3VV/bundle.json","state_url":"https://pith.science/pith/XHUJEBX75OW6DKZGUG2JB7D3VV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHUJEBX75OW6DKZGUG2JB7D3VV/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":"2026-08-16T06:50:37Z","links":{"resolver":"https://pith.science/pith/XHUJEBX75OW6DKZGUG2JB7D3VV","bundle":"https://pith.science/pith/XHUJEBX75OW6DKZGUG2JB7D3VV/bundle.json","state":"https://pith.science/pith/XHUJEBX75OW6DKZGUG2JB7D3VV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHUJEBX75OW6DKZGUG2JB7D3VV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XHUJEBX75OW6DKZGUG2JB7D3VV","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":"dfc7c815cf8369d2374b1ad81ff5dfba2230d72f346cfadee9653cf01e1ba319","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-18T18:15:54Z","title_canon_sha256":"6f6e2d7b30234c707c9434f8f3fe3789d3e8af208d79e9402350d0c0d7fff352"},"schema_version":"1.0","source":{"id":"1908.06495","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06495","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06495v1","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06495","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"pith_short_12","alias_value":"XHUJEBX75OW6","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"pith_short_16","alias_value":"XHUJEBX75OW6DKZG","created_at":"2026-07-05T00:13:53Z"},{"alias_kind":"pith_short_8","alias_value":"XHUJEBX7","created_at":"2026-07-05T00:13:53Z"}],"graph_snapshots":[{"event_id":"sha256:89d308070217125cd74343b1a2404f855ed6f15f1b9d0773f8db4fd490476b23","target":"graph","created_at":"2026-07-05T00:13:53Z","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/1908.06495/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spatial light modulators (SLMs) are central to numerous applications ranging from high-speed displays to adaptive optics, structured illumination microscopy, and holography. After decades of advances, SLM arrays based on liquid crystals can now reach large pixel counts exceeding 10^6 with phase-only modulation with a pixel pitch of less than 10 {\\mu}m and reflectance around 75%. However, the rather slow modulation speed in such SLMs (below hundreds of Hz) presents limitations for many applications. Here we propose an SLM architecture that can achieve high pixel count with high-resolution phase","authors_text":"Cheng Peng, Dirk Englund, Mohammad Soltani, Ryan Hamerly","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-18T18:15:54Z","title":"High-Speed Phase-Only Spatial Light Modulators with Two-Dimensional Tunable Microcavity Arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06495","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":"sha256:1b8a83fd4c8f97e59e68ddfde669175856f1db81b2805dcf31bf5558932ba56e","target":"record","created_at":"2026-07-05T00:13:53Z","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":"dfc7c815cf8369d2374b1ad81ff5dfba2230d72f346cfadee9653cf01e1ba319","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-08-18T18:15:54Z","title_canon_sha256":"6f6e2d7b30234c707c9434f8f3fe3789d3e8af208d79e9402350d0c0d7fff352"},"schema_version":"1.0","source":{"id":"1908.06495","kind":"arxiv","version":1}},"canonical_sha256":"b9e89206ffebade1ab26a1b490fc7bad733bf62004da418ea5c74b9b216a0261","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9e89206ffebade1ab26a1b490fc7bad733bf62004da418ea5c74b9b216a0261","first_computed_at":"2026-07-05T00:13:53.379332Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:13:53.379332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rSy2IoVEF+BTpttKLC1tuT2uyTycuqcGKSx7adNCzQ+/I7SrGFRl6QJGdJzI4p9oYPXfo4m0gRmbsCoPM5mtAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:13:53.379676Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.06495","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b8a83fd4c8f97e59e68ddfde669175856f1db81b2805dcf31bf5558932ba56e","sha256:89d308070217125cd74343b1a2404f855ed6f15f1b9d0773f8db4fd490476b23"],"state_sha256":"a2e2f591f21bfacb97cd64496322dedd0ef39b06c3d99ab039ff04c33213b4e2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s2H/j73M0IjlMEk4verY5dvYlnK0HoisHEp8sjiu/qm3q2eQMMFqgCsif6oFz8TQ3KU9JuwdZ6Zog1TlISL/Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T06:50:37.745961Z","bundle_sha256":"3345ccdc9ea42d8fc21f76c3d86f6564eda797b9f20f8ed90f58ec3a7dce4e75"}}