{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FXWRUV4VSGR6FOHJBCB3BLO37P","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":"142ae92681c47ac05c872279ce9e364570d23c5342b5ef63270ae016d323cf59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2026-06-20T14:55:36Z","title_canon_sha256":"faa5b415b1c7ee54295dc1221bb0333dc451e00427fe1420fe60f1529ca68da7"},"schema_version":"1.0","source":{"id":"2606.22081","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22081","created_at":"2026-06-23T02:13:27Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22081v1","created_at":"2026-06-23T02:13:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22081","created_at":"2026-06-23T02:13:27Z"},{"alias_kind":"pith_short_12","alias_value":"FXWRUV4VSGR6","created_at":"2026-06-23T02:13:27Z"},{"alias_kind":"pith_short_16","alias_value":"FXWRUV4VSGR6FOHJ","created_at":"2026-06-23T02:13:27Z"},{"alias_kind":"pith_short_8","alias_value":"FXWRUV4V","created_at":"2026-06-23T02:13:27Z"}],"graph_snapshots":[{"event_id":"sha256:3539ca29db739d44a085bbeb5e5d78cdde168235751aa91876a72dce6b7a42b3","target":"graph","created_at":"2026-06-23T02:13:27Z","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/2606.22081/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We demonstrate that acoustic waves can induce controlled translation and rotation of macroscopic objects through small, but deliberate, detuning of the driving wave frequency. When an object is patterned with a suitably designed acoustic metasurface, small changes in the incident frequency $\\omega \\pm \\delta \\omega$ are converted into directional radiation forces and torques, enabling steerable motion even for objects much larger than the acoustic wavelength. We present the concept of a force-optimal metasurface topology and show that it enables fully reversible forces in real time: the object","authors_text":"Matthew Stein, Ognjen Ilic, Sam Keller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2026-06-20T14:55:36Z","title":"Steerable Radiation Forces with Frequency-Detuned Acoustic Metasurfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22081","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":"sha256:415edbac50a390637c88d263caec1403baa732b67e6241914da1dd445cc01a11","target":"record","created_at":"2026-06-23T02:13:27Z","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":"142ae92681c47ac05c872279ce9e364570d23c5342b5ef63270ae016d323cf59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2026-06-20T14:55:36Z","title_canon_sha256":"faa5b415b1c7ee54295dc1221bb0333dc451e00427fe1420fe60f1529ca68da7"},"schema_version":"1.0","source":{"id":"2606.22081","kind":"arxiv","version":1}},"canonical_sha256":"2ded1a579591a3e2b8e90883b0addbfbe6dde382896946659f3f71e30ba03de2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ded1a579591a3e2b8e90883b0addbfbe6dde382896946659f3f71e30ba03de2","first_computed_at":"2026-06-23T02:13:27.693912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T02:13:27.693912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pulmviTz68qht7vUrxTsGCUoroe3yUGmNCz9Y6KKZ86KTyW0Qp0EFEjNbnqTCvM7L4JMdZXESrR4hjN4LOS/DA==","signature_status":"signed_v1","signed_at":"2026-06-23T02:13:27.694302Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.22081","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:415edbac50a390637c88d263caec1403baa732b67e6241914da1dd445cc01a11","sha256:3539ca29db739d44a085bbeb5e5d78cdde168235751aa91876a72dce6b7a42b3"],"state_sha256":"ac34ed52e942e047b7a6c08eed5f6f01f21737c2b5f4553dc3daaa572859891b"}