{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:DXSUZURHV7M6HUXR4RQ7HQOHVG","short_pith_number":"pith:DXSUZURH","canonical_record":{"source":{"id":"1908.08664","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2019-08-23T05:03:07Z","cross_cats_sorted":["cs.NA","physics.app-ph"],"title_canon_sha256":"82846227769f61722421bf836234da702133b7b31cc094b2fd5cd47c29f70b64","abstract_canon_sha256":"894568149c48f8ec8c1692f10991aa2f81ee88eeafe1500933f81159eb0661d8"},"schema_version":"1.0"},"canonical_sha256":"1de54cd227afd9e3d2f1e461f3c1c7a9acc777dd20b371a54ba06983fa8dac1b","source":{"kind":"arxiv","id":"1908.08664","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08664","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08664v1","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08664","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_12","alias_value":"DXSUZURHV7M6","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_16","alias_value":"DXSUZURHV7M6HUXR","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_8","alias_value":"DXSUZURH","created_at":"2026-07-05T01:14:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:DXSUZURHV7M6HUXR4RQ7HQOHVG","target":"record","payload":{"canonical_record":{"source":{"id":"1908.08664","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2019-08-23T05:03:07Z","cross_cats_sorted":["cs.NA","physics.app-ph"],"title_canon_sha256":"82846227769f61722421bf836234da702133b7b31cc094b2fd5cd47c29f70b64","abstract_canon_sha256":"894568149c48f8ec8c1692f10991aa2f81ee88eeafe1500933f81159eb0661d8"},"schema_version":"1.0"},"canonical_sha256":"1de54cd227afd9e3d2f1e461f3c1c7a9acc777dd20b371a54ba06983fa8dac1b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:14:27.771067Z","signature_b64":"wpwGFMIu4Mh7XUI9d0caO0w251YZGmqgbWxol9WzxHaNw36/hI50ZWQbA46PMvwfokGeNxjsxHubsZPBXU7rAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1de54cd227afd9e3d2f1e461f3c1c7a9acc777dd20b371a54ba06983fa8dac1b","last_reissued_at":"2026-07-05T01:14:27.770674Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:14:27.770674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.08664","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":"2026-07-05T01:14:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zeoWWXPO82mRXRoNs8IOYVKCh8B79ZZ2MLFYfTRROZkkR8/IBLl1eHS4oVWfAWUllNmMiUJtnMnxJvAdHxjfDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T17:43:38.234028Z"},"content_sha256":"3d8b47f3de199372ed4aa1534481b8cad3c00fed31a389f0436a747c8e68a488","schema_version":"1.0","event_id":"sha256:3d8b47f3de199372ed4aa1534481b8cad3c00fed31a389f0436a747c8e68a488"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:DXSUZURHV7M6HUXR4RQ7HQOHVG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Periodic particle arrangements using standing acoustic waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NA","physics.app-ph"],"primary_cat":"math.NA","authors_text":"China Mauck, Fernando Guevara Vasquez","submitted_at":"2019-08-23T05:03:07Z","abstract_excerpt":"We determine crystal-like materials that can be fabricated by using a standing acoustic wave to arrange small particles in a non-viscous liquid resin, which is cured afterwards to keep the particles in the desired locations. For identical spherical particles with the same physical properties and small compared to the wavelength, the locations where the particles are trapped correspond to the minima of an acoustic radiation potential which describes the net forces that a particle is subject to. We show that the global minima of spatially periodic acoustic radiation potentials can be predicted b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08664","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.08664/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:14:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JgMf8dKD8MzCyqwNT5qNATj/F0GVYaEyofFxXe4rY4FN40tvQriHVI4/Xwv7jz8zD0wk9u4/ySm2BIYn5wOCAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T17:43:38.234942Z"},"content_sha256":"253e7d16af351bea2103d18ad46e449f85009370c21100cf7c982439131a5329","schema_version":"1.0","event_id":"sha256:253e7d16af351bea2103d18ad46e449f85009370c21100cf7c982439131a5329"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DXSUZURHV7M6HUXR4RQ7HQOHVG/bundle.json","state_url":"https://pith.science/pith/DXSUZURHV7M6HUXR4RQ7HQOHVG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DXSUZURHV7M6HUXR4RQ7HQOHVG/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":"2026-08-17T17:43:38Z","links":{"resolver":"https://pith.science/pith/DXSUZURHV7M6HUXR4RQ7HQOHVG","bundle":"https://pith.science/pith/DXSUZURHV7M6HUXR4RQ7HQOHVG/bundle.json","state":"https://pith.science/pith/DXSUZURHV7M6HUXR4RQ7HQOHVG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DXSUZURHV7M6HUXR4RQ7HQOHVG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:DXSUZURHV7M6HUXR4RQ7HQOHVG","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":"894568149c48f8ec8c1692f10991aa2f81ee88eeafe1500933f81159eb0661d8","cross_cats_sorted":["cs.NA","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2019-08-23T05:03:07Z","title_canon_sha256":"82846227769f61722421bf836234da702133b7b31cc094b2fd5cd47c29f70b64"},"schema_version":"1.0","source":{"id":"1908.08664","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08664","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08664v1","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08664","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_12","alias_value":"DXSUZURHV7M6","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_16","alias_value":"DXSUZURHV7M6HUXR","created_at":"2026-07-05T01:14:27Z"},{"alias_kind":"pith_short_8","alias_value":"DXSUZURH","created_at":"2026-07-05T01:14:27Z"}],"graph_snapshots":[{"event_id":"sha256:253e7d16af351bea2103d18ad46e449f85009370c21100cf7c982439131a5329","target":"graph","created_at":"2026-07-05T01:14:27Z","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/1908.08664/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We determine crystal-like materials that can be fabricated by using a standing acoustic wave to arrange small particles in a non-viscous liquid resin, which is cured afterwards to keep the particles in the desired locations. For identical spherical particles with the same physical properties and small compared to the wavelength, the locations where the particles are trapped correspond to the minima of an acoustic radiation potential which describes the net forces that a particle is subject to. We show that the global minima of spatially periodic acoustic radiation potentials can be predicted b","authors_text":"China Mauck, Fernando Guevara Vasquez","cross_cats":["cs.NA","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2019-08-23T05:03:07Z","title":"Periodic particle arrangements using standing acoustic waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08664","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":"sha256:3d8b47f3de199372ed4aa1534481b8cad3c00fed31a389f0436a747c8e68a488","target":"record","created_at":"2026-07-05T01:14:27Z","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":"894568149c48f8ec8c1692f10991aa2f81ee88eeafe1500933f81159eb0661d8","cross_cats_sorted":["cs.NA","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2019-08-23T05:03:07Z","title_canon_sha256":"82846227769f61722421bf836234da702133b7b31cc094b2fd5cd47c29f70b64"},"schema_version":"1.0","source":{"id":"1908.08664","kind":"arxiv","version":1}},"canonical_sha256":"1de54cd227afd9e3d2f1e461f3c1c7a9acc777dd20b371a54ba06983fa8dac1b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1de54cd227afd9e3d2f1e461f3c1c7a9acc777dd20b371a54ba06983fa8dac1b","first_computed_at":"2026-07-05T01:14:27.770674Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:14:27.770674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wpwGFMIu4Mh7XUI9d0caO0w251YZGmqgbWxol9WzxHaNw36/hI50ZWQbA46PMvwfokGeNxjsxHubsZPBXU7rAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:14:27.771067Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.08664","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d8b47f3de199372ed4aa1534481b8cad3c00fed31a389f0436a747c8e68a488","sha256:253e7d16af351bea2103d18ad46e449f85009370c21100cf7c982439131a5329"],"state_sha256":"ed1f50689d3eb38f381887e9d040bfdf7896af9c81e44f90fc9845755de5cb9f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cu/8maTYLCePl1YFfSzbBitE1ZahgSFoSjDsXpxZ7mE3H8miJLV8hPiYRnuCGjgKFwxXC90k5t52hqSBmSRVCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T17:43:38.240871Z","bundle_sha256":"ece96d42757b20c20d4130c1f29028307dafb2a74f6a186970704920e9d3f562"}}