{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:MQIDCR3BZRCAPBV7RNG4CXV6SB","short_pith_number":"pith:MQIDCR3B","canonical_record":{"source":{"id":"1504.01909","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-08T10:52:29Z","cross_cats_sorted":[],"title_canon_sha256":"ded202e7fea495ad4a14c4ca45db6c5fa053b05da577270f12341b2eeabc4a40","abstract_canon_sha256":"b9bd06d827ec32f58a48b9d6b297b66d190aabd20e9b54d0dffe63f60041ef8f"},"schema_version":"1.0"},"canonical_sha256":"6410314761cc440786bf8b4dc15ebe905443784eba351951b1387836a2d245a8","source":{"kind":"arxiv","id":"1504.01909","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01909","created_at":"2026-05-18T02:19:17Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01909v1","created_at":"2026-05-18T02:19:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01909","created_at":"2026-05-18T02:19:17Z"},{"alias_kind":"pith_short_12","alias_value":"MQIDCR3BZRCA","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MQIDCR3BZRCAPBV7","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MQIDCR3B","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:MQIDCR3BZRCAPBV7RNG4CXV6SB","target":"record","payload":{"canonical_record":{"source":{"id":"1504.01909","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-08T10:52:29Z","cross_cats_sorted":[],"title_canon_sha256":"ded202e7fea495ad4a14c4ca45db6c5fa053b05da577270f12341b2eeabc4a40","abstract_canon_sha256":"b9bd06d827ec32f58a48b9d6b297b66d190aabd20e9b54d0dffe63f60041ef8f"},"schema_version":"1.0"},"canonical_sha256":"6410314761cc440786bf8b4dc15ebe905443784eba351951b1387836a2d245a8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:17.833027Z","signature_b64":"vDWIwbJ/XGYX8gNSVeWM2GquuzO4dpdAzQ1gLncw5QRLkUzPyVtww1zlJrznBZe9UX13eJXBWzl5ovjVMwsUAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6410314761cc440786bf8b4dc15ebe905443784eba351951b1387836a2d245a8","last_reissued_at":"2026-05-18T02:19:17.832397Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:17.832397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.01909","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":"2026-05-18T02:19:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/NqoCAxYdU8Kp0bfVYuXs+tVEN9WpLVJ9ShF1wPuW3wKtHZt7o0kiIh0CHCw57FG/2L9bvmOGzl+NEPOZkZ+AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:31:30.873108Z"},"content_sha256":"4322847a0452c073a91283bb3504c3446636183b9d6e581d9fc16367ce3f0faa","schema_version":"1.0","event_id":"sha256:4322847a0452c073a91283bb3504c3446636183b9d6e581d9fc16367ce3f0faa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:MQIDCR3BZRCAPBV7RNG4CXV6SB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Continuously Shaping Orbital Angular Momentum with an Analog Optical Vortex Transmitter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"A. Danner, Chengwei Qiu, Hong Liu, Jinghua Teng, Kun Huang, M. Q. Mehmood, S. Mei","submitted_at":"2015-04-08T10:52:29Z","abstract_excerpt":"Dynamic generation of obitial angular momentum (OAM) of light has enabled complex manipulation of micro-particles, high-dimension quantum entanglement and optical communication. We report an analog vortex transmitter made of one bilaterally symmetric grating and an aperture, emitting optical vortices with the average OAM value continuously variant in the entire rational range. Benefiting from linearly-varying transverse dislocation along its axis of symmetry, this diffractive transmitter possesses extra degree of freedom in engineering broadband optical vortices meanwhile preserving a novel sp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01909","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":"2026-05-18T02:19:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A8qOk8naaQWSv5h0JpDGFqF2hupyV85vP/1IP6tmvDmi/puHcpO4+FCEt97GY03m22xy60N7PopKMbfbzNFvCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:31:30.873777Z"},"content_sha256":"2e5a7a0dc3ef1acee2cfcf1d44756020c76e90645d46fa2d1eddbbbcc05ed5a2","schema_version":"1.0","event_id":"sha256:2e5a7a0dc3ef1acee2cfcf1d44756020c76e90645d46fa2d1eddbbbcc05ed5a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MQIDCR3BZRCAPBV7RNG4CXV6SB/bundle.json","state_url":"https://pith.science/pith/MQIDCR3BZRCAPBV7RNG4CXV6SB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MQIDCR3BZRCAPBV7RNG4CXV6SB/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":"2026-06-01T12:31:30Z","links":{"resolver":"https://pith.science/pith/MQIDCR3BZRCAPBV7RNG4CXV6SB","bundle":"https://pith.science/pith/MQIDCR3BZRCAPBV7RNG4CXV6SB/bundle.json","state":"https://pith.science/pith/MQIDCR3BZRCAPBV7RNG4CXV6SB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MQIDCR3BZRCAPBV7RNG4CXV6SB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:MQIDCR3BZRCAPBV7RNG4CXV6SB","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":"b9bd06d827ec32f58a48b9d6b297b66d190aabd20e9b54d0dffe63f60041ef8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-08T10:52:29Z","title_canon_sha256":"ded202e7fea495ad4a14c4ca45db6c5fa053b05da577270f12341b2eeabc4a40"},"schema_version":"1.0","source":{"id":"1504.01909","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01909","created_at":"2026-05-18T02:19:17Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01909v1","created_at":"2026-05-18T02:19:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01909","created_at":"2026-05-18T02:19:17Z"},{"alias_kind":"pith_short_12","alias_value":"MQIDCR3BZRCA","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MQIDCR3BZRCAPBV7","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MQIDCR3B","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:2e5a7a0dc3ef1acee2cfcf1d44756020c76e90645d46fa2d1eddbbbcc05ed5a2","target":"graph","created_at":"2026-05-18T02:19:17Z","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":"Dynamic generation of obitial angular momentum (OAM) of light has enabled complex manipulation of micro-particles, high-dimension quantum entanglement and optical communication. We report an analog vortex transmitter made of one bilaterally symmetric grating and an aperture, emitting optical vortices with the average OAM value continuously variant in the entire rational range. Benefiting from linearly-varying transverse dislocation along its axis of symmetry, this diffractive transmitter possesses extra degree of freedom in engineering broadband optical vortices meanwhile preserving a novel sp","authors_text":"A. Danner, Chengwei Qiu, Hong Liu, Jinghua Teng, Kun Huang, M. Q. Mehmood, S. Mei","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-08T10:52:29Z","title":"Continuously Shaping Orbital Angular Momentum with an Analog Optical Vortex Transmitter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01909","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":"sha256:4322847a0452c073a91283bb3504c3446636183b9d6e581d9fc16367ce3f0faa","target":"record","created_at":"2026-05-18T02:19:17Z","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":"b9bd06d827ec32f58a48b9d6b297b66d190aabd20e9b54d0dffe63f60041ef8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-08T10:52:29Z","title_canon_sha256":"ded202e7fea495ad4a14c4ca45db6c5fa053b05da577270f12341b2eeabc4a40"},"schema_version":"1.0","source":{"id":"1504.01909","kind":"arxiv","version":1}},"canonical_sha256":"6410314761cc440786bf8b4dc15ebe905443784eba351951b1387836a2d245a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6410314761cc440786bf8b4dc15ebe905443784eba351951b1387836a2d245a8","first_computed_at":"2026-05-18T02:19:17.832397Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:19:17.832397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vDWIwbJ/XGYX8gNSVeWM2GquuzO4dpdAzQ1gLncw5QRLkUzPyVtww1zlJrznBZe9UX13eJXBWzl5ovjVMwsUAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:19:17.833027Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.01909","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4322847a0452c073a91283bb3504c3446636183b9d6e581d9fc16367ce3f0faa","sha256:2e5a7a0dc3ef1acee2cfcf1d44756020c76e90645d46fa2d1eddbbbcc05ed5a2"],"state_sha256":"59016f3605ef63cbfa555784de9ebd77d495f00b6c28b45994832dd1cce4f943"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vV7Yi0HYZB5G89nFgQdR4RtuuL5yEh5d/FlmIYzgChBEH3WKcULoJZVX1FLQG+2NiCWKnpapIap93lr7jAukDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T12:31:30.876863Z","bundle_sha256":"41cc588ee6bd57e1155cef5dd90b73f43ab49e553bdb18a55b91d205a4d0f8ea"}}