{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:HMNDZGPBOAYNZVG3VVQRD5VUIA","short_pith_number":"pith:HMNDZGPB","canonical_record":{"source":{"id":"1202.0559","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-02-02T21:19:27Z","cross_cats_sorted":[],"title_canon_sha256":"522b7b50f58bf29e34cb6e9879f7b8d87a008bcae11ed88a3784a336c23d0321","abstract_canon_sha256":"09a0ba532476bf2086a2c57830a264bd7d8ba2e2958ec05ceb5b5d8046893426"},"schema_version":"1.0"},"canonical_sha256":"3b1a3c99e17030dcd4dbad6111f6b4402d83bd93bf1e8b9924562cdc6c3091de","source":{"kind":"arxiv","id":"1202.0559","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.0559","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"arxiv_version","alias_value":"1202.0559v1","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.0559","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"pith_short_12","alias_value":"HMNDZGPBOAYN","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"HMNDZGPBOAYNZVG3","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"HMNDZGPB","created_at":"2026-05-18T12:27:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:HMNDZGPBOAYNZVG3VVQRD5VUIA","target":"record","payload":{"canonical_record":{"source":{"id":"1202.0559","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-02-02T21:19:27Z","cross_cats_sorted":[],"title_canon_sha256":"522b7b50f58bf29e34cb6e9879f7b8d87a008bcae11ed88a3784a336c23d0321","abstract_canon_sha256":"09a0ba532476bf2086a2c57830a264bd7d8ba2e2958ec05ceb5b5d8046893426"},"schema_version":"1.0"},"canonical_sha256":"3b1a3c99e17030dcd4dbad6111f6b4402d83bd93bf1e8b9924562cdc6c3091de","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:08.628726Z","signature_b64":"wsCWGEJ7haqOQfgiPLm1ZC5Mruh14hkEqupV35vMTzZCKOE97KaovJtrD0SMbIjKbI25FrSMlBIz8JvGs4+lBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3b1a3c99e17030dcd4dbad6111f6b4402d83bd93bf1e8b9924562cdc6c3091de","last_reissued_at":"2026-05-18T04:03:08.628003Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:08.628003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.0559","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":"2026-05-18T04:03:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ANtzEBNsNp/JxEfgdek54tV8rOZVZ5siPk/WS1yjq43xPfVwDb+ITSuU2our07JTPidwlUD1utMV+68xNLDAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:14:02.061422Z"},"content_sha256":"38ee4eaa0003bd074e60008de2e00d692dbc5f685ddf1689a2db38514002bc05","schema_version":"1.0","event_id":"sha256:38ee4eaa0003bd074e60008de2e00d692dbc5f685ddf1689a2db38514002bc05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:HMNDZGPBOAYNZVG3VVQRD5VUIA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Time-division multiplexing of the orbital angular momentum of light","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Corrado de Lisio, Ebrahim Karimi, Enrico Santamato, Lorenzo Marrucci","submitted_at":"2012-02-02T21:19:27Z","abstract_excerpt":"We present an optical setup for generating a sequence of light pulses in which the orbital angular momentum (OAM) degree of freedom is correlated with the temporal one. The setup is based on a single $q$-plate within a ring optical resonator. By this approach, we demonstrate the generation of a train of pulses carrying increasing values of OAM, or, alternatively, of a controlled temporal sequence of pulses having prescribed OAM superposition states. Finally, we exhibit an \"OAM-to-time conversion\" apparatus dividing different input OAM states into different time-bins. The latter application pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.0559","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":"2026-05-18T04:03:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+kopAMW0VlEwuqKfwQIw1MZZ7GHcMqZOO5o6w9Htm4ga1IsJc9CP3SvnaXeQkZgf+fn9DpDaFeFKL3IVlPrhAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:14:02.062115Z"},"content_sha256":"4c36b54090ff459112681e72fe0748f17432fa8f32bf8c94e919791e668f7363","schema_version":"1.0","event_id":"sha256:4c36b54090ff459112681e72fe0748f17432fa8f32bf8c94e919791e668f7363"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HMNDZGPBOAYNZVG3VVQRD5VUIA/bundle.json","state_url":"https://pith.science/pith/HMNDZGPBOAYNZVG3VVQRD5VUIA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HMNDZGPBOAYNZVG3VVQRD5VUIA/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":"2026-05-25T04:14:02Z","links":{"resolver":"https://pith.science/pith/HMNDZGPBOAYNZVG3VVQRD5VUIA","bundle":"https://pith.science/pith/HMNDZGPBOAYNZVG3VVQRD5VUIA/bundle.json","state":"https://pith.science/pith/HMNDZGPBOAYNZVG3VVQRD5VUIA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HMNDZGPBOAYNZVG3VVQRD5VUIA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:HMNDZGPBOAYNZVG3VVQRD5VUIA","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":"09a0ba532476bf2086a2c57830a264bd7d8ba2e2958ec05ceb5b5d8046893426","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-02-02T21:19:27Z","title_canon_sha256":"522b7b50f58bf29e34cb6e9879f7b8d87a008bcae11ed88a3784a336c23d0321"},"schema_version":"1.0","source":{"id":"1202.0559","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.0559","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"arxiv_version","alias_value":"1202.0559v1","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.0559","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"pith_short_12","alias_value":"HMNDZGPBOAYN","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"HMNDZGPBOAYNZVG3","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"HMNDZGPB","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:4c36b54090ff459112681e72fe0748f17432fa8f32bf8c94e919791e668f7363","target":"graph","created_at":"2026-05-18T04:03:08Z","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 present an optical setup for generating a sequence of light pulses in which the orbital angular momentum (OAM) degree of freedom is correlated with the temporal one. The setup is based on a single $q$-plate within a ring optical resonator. By this approach, we demonstrate the generation of a train of pulses carrying increasing values of OAM, or, alternatively, of a controlled temporal sequence of pulses having prescribed OAM superposition states. Finally, we exhibit an \"OAM-to-time conversion\" apparatus dividing different input OAM states into different time-bins. The latter application pro","authors_text":"Corrado de Lisio, Ebrahim Karimi, Enrico Santamato, Lorenzo Marrucci","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-02-02T21:19:27Z","title":"Time-division multiplexing of the orbital angular momentum of light"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.0559","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":"sha256:38ee4eaa0003bd074e60008de2e00d692dbc5f685ddf1689a2db38514002bc05","target":"record","created_at":"2026-05-18T04:03:08Z","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":"09a0ba532476bf2086a2c57830a264bd7d8ba2e2958ec05ceb5b5d8046893426","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-02-02T21:19:27Z","title_canon_sha256":"522b7b50f58bf29e34cb6e9879f7b8d87a008bcae11ed88a3784a336c23d0321"},"schema_version":"1.0","source":{"id":"1202.0559","kind":"arxiv","version":1}},"canonical_sha256":"3b1a3c99e17030dcd4dbad6111f6b4402d83bd93bf1e8b9924562cdc6c3091de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3b1a3c99e17030dcd4dbad6111f6b4402d83bd93bf1e8b9924562cdc6c3091de","first_computed_at":"2026-05-18T04:03:08.628003Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:08.628003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wsCWGEJ7haqOQfgiPLm1ZC5Mruh14hkEqupV35vMTzZCKOE97KaovJtrD0SMbIjKbI25FrSMlBIz8JvGs4+lBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:08.628726Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.0559","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38ee4eaa0003bd074e60008de2e00d692dbc5f685ddf1689a2db38514002bc05","sha256:4c36b54090ff459112681e72fe0748f17432fa8f32bf8c94e919791e668f7363"],"state_sha256":"ecaa1cda134dd3cf6d04211cf49c50b96cd51b5ad241e46d5fbb98ed06fcf48f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6DrORyOitySUDTvPP0oip1emxH0Ka2oEZN/nYzpHzKPPYXbkwhukf5NbCcx34/2ai1dffH8JKczvIJmkrUEeDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T04:14:02.065401Z","bundle_sha256":"f0d379e6bf51ddf304b96930f314dfc924385c9aae40578a01ed679e6d62e73c"}}