{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:QNNEK65QGE55Z2QSWNNETL4QTZ","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":"6f86930e5ceccfde1a934639c7a0cf557044dab3b45593171dbcaea16e882bc1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-11-30T15:54:20Z","title_canon_sha256":"abc912c400ba7f9efcc034370e55e436051bfe51417d35ae5c4098e97625d2e7"},"schema_version":"1.0","source":{"id":"1412.0234","kind":"arxiv","version":13}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.0234","created_at":"2026-05-18T01:20:22Z"},{"alias_kind":"arxiv_version","alias_value":"1412.0234v13","created_at":"2026-05-18T01:20:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.0234","created_at":"2026-05-18T01:20:22Z"},{"alias_kind":"pith_short_12","alias_value":"QNNEK65QGE55","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QNNEK65QGE55Z2QS","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QNNEK65Q","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:b1d46d11e291b1c4f06e80774b56ec0565cedaf484548ee59d7671e943f9784d","target":"graph","created_at":"2026-05-18T01:20:22Z","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":"Orbital angular momentum (OAM) has gained great interest due to its most attractive feature of high dimensionality, and several ground-breaking demonstrations in communication based on OAM multiplexing have been carried out. Accordingly, a rapid data-density growth from OAM multiplexing has posed a great challenge to the signal-processing layer. Meanwhile, in another area, optical signal-processing circuit based on photon-phonon conversion has received considerable attention and made rapid progress. Here, with an aim of finding the intersection between OAM multiplexing and photon-phonon conver","authors_text":"Chunyuan Mu, Hongwei Li, Wei Gao, Zhihan Zhu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-11-30T15:54:20Z","title":"Observation of reversible orbital angular momentum transfer based on photon-phonon coupling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.0234","kind":"arxiv","version":13},"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":"sha256:3d2c20085f1c083ac5ab08b4c7bafa9d031e0be5f45f8112d9332ee22f4aefcb","target":"record","created_at":"2026-05-18T01:20:22Z","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":"6f86930e5ceccfde1a934639c7a0cf557044dab3b45593171dbcaea16e882bc1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-11-30T15:54:20Z","title_canon_sha256":"abc912c400ba7f9efcc034370e55e436051bfe51417d35ae5c4098e97625d2e7"},"schema_version":"1.0","source":{"id":"1412.0234","kind":"arxiv","version":13}},"canonical_sha256":"835a457bb0313bdcea12b35a49af909e6eb8ed4541fb5e84c19242f3f7deb0b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"835a457bb0313bdcea12b35a49af909e6eb8ed4541fb5e84c19242f3f7deb0b0","first_computed_at":"2026-05-18T01:20:22.317684Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:22.317684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6IbeP6wm46gxtVZAhvje8O3m8Llx0BqBT78/Dya8FXY9S8ficH8HaVgfnw+yn9cTrYMP121X7NBSWQt+OSUDDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:22.318275Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.0234","source_kind":"arxiv","source_version":13}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d2c20085f1c083ac5ab08b4c7bafa9d031e0be5f45f8112d9332ee22f4aefcb","sha256:b1d46d11e291b1c4f06e80774b56ec0565cedaf484548ee59d7671e943f9784d"],"state_sha256":"29665d2496550b957c29e53a15d1ca1fc318f2ab96cb0f510e20de33794540c7"}