{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:5ZU7S2MP33GDD2KYC3ERYH2JJU","short_pith_number":"pith:5ZU7S2MP","canonical_record":{"source":{"id":"1303.4413","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-03-18T20:28:50Z","cross_cats_sorted":[],"title_canon_sha256":"8ca06f515fa0d439172688eaf673712075ddbc3104c3977f4f847dd26f34569b","abstract_canon_sha256":"f8cfd4d2c903fa58c2d7254d599a30f21e25177bcbf5a4ecbc148caa5a1af33a"},"schema_version":"1.0"},"canonical_sha256":"ee69f9698fdecc31e95816c91c1f494d0735e28c97df7b72a2e37620d65f2c1f","source":{"kind":"arxiv","id":"1303.4413","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4413","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4413v1","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4413","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"pith_short_12","alias_value":"5ZU7S2MP33GD","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5ZU7S2MP33GDD2KY","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5ZU7S2MP","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:5ZU7S2MP33GDD2KYC3ERYH2JJU","target":"record","payload":{"canonical_record":{"source":{"id":"1303.4413","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-03-18T20:28:50Z","cross_cats_sorted":[],"title_canon_sha256":"8ca06f515fa0d439172688eaf673712075ddbc3104c3977f4f847dd26f34569b","abstract_canon_sha256":"f8cfd4d2c903fa58c2d7254d599a30f21e25177bcbf5a4ecbc148caa5a1af33a"},"schema_version":"1.0"},"canonical_sha256":"ee69f9698fdecc31e95816c91c1f494d0735e28c97df7b72a2e37620d65f2c1f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:01.011868Z","signature_b64":"5giqrQDfQb3ajnVNMjMz2YS5tsUqxta+T7asT5cXrP7rK9w+T9wx0PjGRX5C4SZBMwCb8PpA7K29wkGkkV1YDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee69f9698fdecc31e95816c91c1f494d0735e28c97df7b72a2e37620d65f2c1f","last_reissued_at":"2026-05-18T01:51:01.011206Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:01.011206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.4413","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":"2026-05-18T01:51:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tdOky1a3QnQZsSoEsg9H3oiVnSrcC/wcNVebwotNKIMf1/it8rz7+hnWzvbzK8KXOUaAuAkW8ssqaDjXY3rkDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T22:18:42.670666Z"},"content_sha256":"8c69feea2a880a14d4a3e02bdf1a0bed914e0b35010cf4929eb2318ddd2955bb","schema_version":"1.0","event_id":"sha256:8c69feea2a880a14d4a3e02bdf1a0bed914e0b35010cf4929eb2318ddd2955bb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:5ZU7S2MP33GDD2KYC3ERYH2JJU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Intrinsic to extrinsic phonon lifetime transition in a GaAs-AlAs superlattice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Adam Jandl, Alexei A Maznev, Eugene A Fitzgerald, Felix Hofmann, Gang Chen, Jivtesh Garg, Keith A Nelson, Mayank T Bulsara","submitted_at":"2013-03-18T20:28:50Z","abstract_excerpt":"We have measured the lifetimes of two zone-center longitudinal acoustic phonon modes, at 320 GHz and 640 GHz respectively, in a 14 nm GaAs / 2 nm AlAs superlattice structure. By comparing measurements at 296 K and 79 K we separate the intrinsic contribution to phonon lifetime determined by phonon-phonon scattering from the extrinsic contribution due to defects and interface roughness. At 296 K, the 320-GHz phonon lifetime has approximately equal contributions from intrinsic and extrinsic scattering, whilst at 640 GHz it is dominated by extrinsic effects. These measurements are compared with fi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4413","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":""},"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":"2026-05-18T01:51:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f8xhJFlJxAIQ596pEvo4yOsWhDQcAERI+2qNtxmbUqOEX/NRiijLyE1gEyyo6tBQfqJmtFxymzp4A5ToCplPBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T22:18:42.671286Z"},"content_sha256":"aefc55e626146533396c831329433ac720ee9951e8c8415597369ae5801e7008","schema_version":"1.0","event_id":"sha256:aefc55e626146533396c831329433ac720ee9951e8c8415597369ae5801e7008"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5ZU7S2MP33GDD2KYC3ERYH2JJU/bundle.json","state_url":"https://pith.science/pith/5ZU7S2MP33GDD2KYC3ERYH2JJU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5ZU7S2MP33GDD2KYC3ERYH2JJU/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":"2026-06-04T22:18:42Z","links":{"resolver":"https://pith.science/pith/5ZU7S2MP33GDD2KYC3ERYH2JJU","bundle":"https://pith.science/pith/5ZU7S2MP33GDD2KYC3ERYH2JJU/bundle.json","state":"https://pith.science/pith/5ZU7S2MP33GDD2KYC3ERYH2JJU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5ZU7S2MP33GDD2KYC3ERYH2JJU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:5ZU7S2MP33GDD2KYC3ERYH2JJU","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":"f8cfd4d2c903fa58c2d7254d599a30f21e25177bcbf5a4ecbc148caa5a1af33a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-03-18T20:28:50Z","title_canon_sha256":"8ca06f515fa0d439172688eaf673712075ddbc3104c3977f4f847dd26f34569b"},"schema_version":"1.0","source":{"id":"1303.4413","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4413","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4413v1","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4413","created_at":"2026-05-18T01:51:01Z"},{"alias_kind":"pith_short_12","alias_value":"5ZU7S2MP33GD","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"5ZU7S2MP33GDD2KY","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"5ZU7S2MP","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:aefc55e626146533396c831329433ac720ee9951e8c8415597369ae5801e7008","target":"graph","created_at":"2026-05-18T01:51:01Z","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":"We have measured the lifetimes of two zone-center longitudinal acoustic phonon modes, at 320 GHz and 640 GHz respectively, in a 14 nm GaAs / 2 nm AlAs superlattice structure. By comparing measurements at 296 K and 79 K we separate the intrinsic contribution to phonon lifetime determined by phonon-phonon scattering from the extrinsic contribution due to defects and interface roughness. At 296 K, the 320-GHz phonon lifetime has approximately equal contributions from intrinsic and extrinsic scattering, whilst at 640 GHz it is dominated by extrinsic effects. These measurements are compared with fi","authors_text":"Adam Jandl, Alexei A Maznev, Eugene A Fitzgerald, Felix Hofmann, Gang Chen, Jivtesh Garg, Keith A Nelson, Mayank T Bulsara","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-03-18T20:28:50Z","title":"Intrinsic to extrinsic phonon lifetime transition in a GaAs-AlAs superlattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4413","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":"sha256:8c69feea2a880a14d4a3e02bdf1a0bed914e0b35010cf4929eb2318ddd2955bb","target":"record","created_at":"2026-05-18T01:51:01Z","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":"f8cfd4d2c903fa58c2d7254d599a30f21e25177bcbf5a4ecbc148caa5a1af33a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-03-18T20:28:50Z","title_canon_sha256":"8ca06f515fa0d439172688eaf673712075ddbc3104c3977f4f847dd26f34569b"},"schema_version":"1.0","source":{"id":"1303.4413","kind":"arxiv","version":1}},"canonical_sha256":"ee69f9698fdecc31e95816c91c1f494d0735e28c97df7b72a2e37620d65f2c1f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee69f9698fdecc31e95816c91c1f494d0735e28c97df7b72a2e37620d65f2c1f","first_computed_at":"2026-05-18T01:51:01.011206Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:01.011206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5giqrQDfQb3ajnVNMjMz2YS5tsUqxta+T7asT5cXrP7rK9w+T9wx0PjGRX5C4SZBMwCb8PpA7K29wkGkkV1YDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:01.011868Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.4413","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c69feea2a880a14d4a3e02bdf1a0bed914e0b35010cf4929eb2318ddd2955bb","sha256:aefc55e626146533396c831329433ac720ee9951e8c8415597369ae5801e7008"],"state_sha256":"53fe1733d8d2d00a494c67088683b2469f751e0021c36e8507246baa5a1bb387"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1jZNDqspHD81s9Muaj/+HPJhQKGn6RLDFnUSXsCMqVwXH6I52wAukhtM26NOrSOFfa3oWA6sxI1dJ4j01ro8Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T22:18:42.674572Z","bundle_sha256":"fa1722a049dfa612ff3bd05b19ee8fc6be0b013803dcbc26a9a085042c6cf661"}}