{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TFMU5YOYAG7LEUUT42OUNQLTOC","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":"32748ce8ebc6d64aace7f8a73261dcdffcc4e3406d761bfe91b48326ce9a5608","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2012-06-23T17:15:12Z","title_canon_sha256":"318d09f2ecc90a8fbc401044c6a1b885887bb05a082b37aaaea4c335f2e5b855"},"schema_version":"1.0","source":{"id":"1206.5995","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.5995","created_at":"2026-05-18T03:05:55Z"},{"alias_kind":"arxiv_version","alias_value":"1206.5995v2","created_at":"2026-05-18T03:05:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.5995","created_at":"2026-05-18T03:05:55Z"},{"alias_kind":"pith_short_12","alias_value":"TFMU5YOYAG7L","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TFMU5YOYAG7LEUUT","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TFMU5YOY","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:e3d2cdc5ba756d794022bc0a2da4dc2b26a401f2f6806e0740cbc47e16a87300","target":"graph","created_at":"2026-05-18T03:05:55Z","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":"In this paper we show how appropriate superpositions of Bessel beams can be successfully used to obtain arbitrary longitudinal intensity patterns of nondiffracting ultrasonic wavefields with very high transverse localization.\n  More precisely, the method here described allows generating longitudinal acoustic pressure fields, whose longitudinal intensity patterns can assume, in principle, any desired shape within a freely chosen interval 0 < z < L of the propagation axis, and that can be endowed in particular with a s t a t i c envelope (within which only the carrier wave propagates). Indeed, i","authors_text":"Erasmo Recami, Hugo E. Hernandez-Figueroa, Jose' L. Prego, Michel Zamboni-Rached","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2012-06-23T17:15:12Z","title":"Producing Acoustic 'Frozen Waves': Simulated experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.5995","kind":"arxiv","version":2},"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:d6d2061b2ffa6e73c46a7a368256db95fe97506d8019702d512cc51e10a2f782","target":"record","created_at":"2026-05-18T03:05:55Z","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":"32748ce8ebc6d64aace7f8a73261dcdffcc4e3406d761bfe91b48326ce9a5608","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2012-06-23T17:15:12Z","title_canon_sha256":"318d09f2ecc90a8fbc401044c6a1b885887bb05a082b37aaaea4c335f2e5b855"},"schema_version":"1.0","source":{"id":"1206.5995","kind":"arxiv","version":2}},"canonical_sha256":"99594ee1d801beb25293e69d46c17370bd14037002a96780a25d894ecad68181","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99594ee1d801beb25293e69d46c17370bd14037002a96780a25d894ecad68181","first_computed_at":"2026-05-18T03:05:55.069620Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:05:55.069620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Aqy77CS3SVErZzU/f0xquV8bl/ousKtW7faGyOPwtW0wb0a3+ihxS6uRUKgJWI5u56BPqpWLFrOcfDXmgLrHAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:05:55.070137Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.5995","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6d2061b2ffa6e73c46a7a368256db95fe97506d8019702d512cc51e10a2f782","sha256:e3d2cdc5ba756d794022bc0a2da4dc2b26a401f2f6806e0740cbc47e16a87300"],"state_sha256":"dbc213e4963a27148fd0f68a5f9ba1971c56dfa00d92929262e69f55142dc80a"}