{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:XX5YPWAYAP6K3WFR3MWBJWQXB7","short_pith_number":"pith:XX5YPWAY","canonical_record":{"source":{"id":"1901.09080","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-25T20:50:48Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5a57c3ca341a12cbb6ef3ca010b0b690fb6d63630da16d5e153c138b1d39715d","abstract_canon_sha256":"919ac48931e26bf224847ce791963b3c3c08bfc6e295c0b34909aab99c474e2c"},"schema_version":"1.0"},"canonical_sha256":"bdfb87d81803fcadd8b1db2c14da170fd490123265784a5a779ca45e95fc1e83","source":{"kind":"arxiv","id":"1901.09080","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.09080","created_at":"2026-05-17T23:40:39Z"},{"alias_kind":"arxiv_version","alias_value":"1901.09080v2","created_at":"2026-05-17T23:40:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.09080","created_at":"2026-05-17T23:40:39Z"},{"alias_kind":"pith_short_12","alias_value":"XX5YPWAYAP6K","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"XX5YPWAYAP6K3WFR","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"XX5YPWAY","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:XX5YPWAYAP6K3WFR3MWBJWQXB7","target":"record","payload":{"canonical_record":{"source":{"id":"1901.09080","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-25T20:50:48Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5a57c3ca341a12cbb6ef3ca010b0b690fb6d63630da16d5e153c138b1d39715d","abstract_canon_sha256":"919ac48931e26bf224847ce791963b3c3c08bfc6e295c0b34909aab99c474e2c"},"schema_version":"1.0"},"canonical_sha256":"bdfb87d81803fcadd8b1db2c14da170fd490123265784a5a779ca45e95fc1e83","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:39.081594Z","signature_b64":"LARM3iLGBgbRSLvFGVoQ4obSeW++2dGK73dLNEB2IzwfpnbzeZyDAdMQcmIyxW0IIOpcz0Fz22sYj7iGp0cXDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bdfb87d81803fcadd8b1db2c14da170fd490123265784a5a779ca45e95fc1e83","last_reissued_at":"2026-05-17T23:40:39.081076Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:39.081076Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.09080","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:40:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"73OvwkTwM1hQSJHvyTZpizmTe5NJBrcMFnosNFY6vrmGzP6XK2ge62nEC8Kir+MV8J07DrtpZCOKSMPHWDpyBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:30:51.029079Z"},"content_sha256":"2a36f827e883bc28f7e9259ea64d046b2cffa15b94938b63b96ccbcfc6a8d79a","schema_version":"1.0","event_id":"sha256:2a36f827e883bc28f7e9259ea64d046b2cffa15b94938b63b96ccbcfc6a8d79a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:XX5YPWAYAP6K3WFR3MWBJWQXB7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phononic band structure engineering for high-Q gigahertz surface acoustic wave resonators on lithium niobate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Amirhassan Shams-Ansari, Cheng Wang, Eric Puma, Keji Lai, Linbo Shao, Lue Wu, Lu Zheng, Marko Lon\\v{c}ar, Mian Zhang, M. N. Gadalla, Smarak Maity, Young-Ik Sohn","submitted_at":"2019-01-25T20:50:48Z","abstract_excerpt":"Phonons at gigahertz frequencies interact with electrons, photons, and atomic systems in solids, and therefore have extensive applications in signal processing, sensing, and quantum technologies. Surface acoustic wave (SAW) resonators that confine surface phonons can play a crucial role in such integrated phononic systems due to small mode size, low dissipation, and efficient electrical transduction. To date, it has been challenging to achieve high quality (Q) factor and small phonon mode size for SAW resonators at gigahertz frequencies. Here, we present a methodology to design compact high-Q "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.09080","kind":"arxiv","version":2},"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":"2026-05-17T23:40:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"trYYMw+Du7GlWxUQjKA39xCJxxuj46dA1WXMRvKPzY3SZ4491e3DcZ1c9PLgCj6h7tpcb77wb2RkVusCYZ9FBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:30:51.029747Z"},"content_sha256":"316c3cfc18a490d5b12752c22625ee811df3c18f1319478da7e2912f8c014d79","schema_version":"1.0","event_id":"sha256:316c3cfc18a490d5b12752c22625ee811df3c18f1319478da7e2912f8c014d79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XX5YPWAYAP6K3WFR3MWBJWQXB7/bundle.json","state_url":"https://pith.science/pith/XX5YPWAYAP6K3WFR3MWBJWQXB7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XX5YPWAYAP6K3WFR3MWBJWQXB7/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":"2026-05-31T23:30:51Z","links":{"resolver":"https://pith.science/pith/XX5YPWAYAP6K3WFR3MWBJWQXB7","bundle":"https://pith.science/pith/XX5YPWAYAP6K3WFR3MWBJWQXB7/bundle.json","state":"https://pith.science/pith/XX5YPWAYAP6K3WFR3MWBJWQXB7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XX5YPWAYAP6K3WFR3MWBJWQXB7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XX5YPWAYAP6K3WFR3MWBJWQXB7","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":"919ac48931e26bf224847ce791963b3c3c08bfc6e295c0b34909aab99c474e2c","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-25T20:50:48Z","title_canon_sha256":"5a57c3ca341a12cbb6ef3ca010b0b690fb6d63630da16d5e153c138b1d39715d"},"schema_version":"1.0","source":{"id":"1901.09080","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.09080","created_at":"2026-05-17T23:40:39Z"},{"alias_kind":"arxiv_version","alias_value":"1901.09080v2","created_at":"2026-05-17T23:40:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.09080","created_at":"2026-05-17T23:40:39Z"},{"alias_kind":"pith_short_12","alias_value":"XX5YPWAYAP6K","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"XX5YPWAYAP6K3WFR","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"XX5YPWAY","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:316c3cfc18a490d5b12752c22625ee811df3c18f1319478da7e2912f8c014d79","target":"graph","created_at":"2026-05-17T23:40:39Z","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":"Phonons at gigahertz frequencies interact with electrons, photons, and atomic systems in solids, and therefore have extensive applications in signal processing, sensing, and quantum technologies. Surface acoustic wave (SAW) resonators that confine surface phonons can play a crucial role in such integrated phononic systems due to small mode size, low dissipation, and efficient electrical transduction. To date, it has been challenging to achieve high quality (Q) factor and small phonon mode size for SAW resonators at gigahertz frequencies. Here, we present a methodology to design compact high-Q ","authors_text":"Amirhassan Shams-Ansari, Cheng Wang, Eric Puma, Keji Lai, Linbo Shao, Lue Wu, Lu Zheng, Marko Lon\\v{c}ar, Mian Zhang, M. N. Gadalla, Smarak Maity, Young-Ik Sohn","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-25T20:50:48Z","title":"Phononic band structure engineering for high-Q gigahertz surface acoustic wave resonators on lithium niobate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.09080","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":"sha256:2a36f827e883bc28f7e9259ea64d046b2cffa15b94938b63b96ccbcfc6a8d79a","target":"record","created_at":"2026-05-17T23:40:39Z","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":"919ac48931e26bf224847ce791963b3c3c08bfc6e295c0b34909aab99c474e2c","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-01-25T20:50:48Z","title_canon_sha256":"5a57c3ca341a12cbb6ef3ca010b0b690fb6d63630da16d5e153c138b1d39715d"},"schema_version":"1.0","source":{"id":"1901.09080","kind":"arxiv","version":2}},"canonical_sha256":"bdfb87d81803fcadd8b1db2c14da170fd490123265784a5a779ca45e95fc1e83","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bdfb87d81803fcadd8b1db2c14da170fd490123265784a5a779ca45e95fc1e83","first_computed_at":"2026-05-17T23:40:39.081076Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:39.081076Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LARM3iLGBgbRSLvFGVoQ4obSeW++2dGK73dLNEB2IzwfpnbzeZyDAdMQcmIyxW0IIOpcz0Fz22sYj7iGp0cXDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:39.081594Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.09080","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a36f827e883bc28f7e9259ea64d046b2cffa15b94938b63b96ccbcfc6a8d79a","sha256:316c3cfc18a490d5b12752c22625ee811df3c18f1319478da7e2912f8c014d79"],"state_sha256":"f7003ddc37154dbb8859c3908e248d200ab868606ccd3ca74f15a8eb2c2f408d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P9QOhQ3SZ3cGn/Y1eftU0lxYPWf4QsWrJOO909+LhlaPXiW/rxBlGHQDK+4XkjDNUUgQK4tD2WN7EqCQmpCVDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:30:51.033595Z","bundle_sha256":"a368bce632b910dfe4674d58f7882892f0593d8318fb7049e182a64b148b83db"}}