{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:SEXOHHZTP624YRT7KGQ55SZKAB","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":"ea91678a237b0d12a7b08f6477bce71ba9f45ed3c485e3e2f16fd5909ca2fa51","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-12T05:29:51Z","title_canon_sha256":"b1d8975b6456397c9c1ab5d3725ba0f21ab5d1b447f4b536d567656bcb3965fd"},"schema_version":"1.0","source":{"id":"1705.04445","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.04445","created_at":"2026-05-18T00:44:38Z"},{"alias_kind":"arxiv_version","alias_value":"1705.04445v1","created_at":"2026-05-18T00:44:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.04445","created_at":"2026-05-18T00:44:38Z"},{"alias_kind":"pith_short_12","alias_value":"SEXOHHZTP624","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SEXOHHZTP624YRT7","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SEXOHHZT","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:2adbdbc96bdf42d83e3a934df1ec1f3838c118195d302e2d5b872e481b628e57","target":"graph","created_at":"2026-05-18T00:44:38Z","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":"Interface phonon (IF) modes of c-plane oriented [AlN/GaN]20 and Al0.35Ga0.65N/Al0.55Ga0.45N]20 multi quantum well (MQW) structures grown via plasma assisted molecular beam epitaxy are reported. The effect of variation in dielectric constant of barrier layers to the IF optical phonon modes of well layers periodically arranged in the MQWs investigated.","authors_text":"A. Bhattacharyya, A. K. Sivadasan, Chirantan Singha, Sandip Dhara","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-12T05:29:51Z","title":"Interface Phonon Modes in the [AlN/GaN]20 and [Al0.35Ga0.65N/Al0.55Ga0.45N]20 2D Multi Quantum Well Structures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.04445","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":"sha256:2b948bd0ada35b40f81bd03a1210e38b8c16d7b76b1ac31431e9e8a95966b3ff","target":"record","created_at":"2026-05-18T00:44:38Z","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":"ea91678a237b0d12a7b08f6477bce71ba9f45ed3c485e3e2f16fd5909ca2fa51","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-12T05:29:51Z","title_canon_sha256":"b1d8975b6456397c9c1ab5d3725ba0f21ab5d1b447f4b536d567656bcb3965fd"},"schema_version":"1.0","source":{"id":"1705.04445","kind":"arxiv","version":1}},"canonical_sha256":"912ee39f337fb5cc467f51a1decb2a007e0fd1a87f773ecb6bc51a7d9894d0ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"912ee39f337fb5cc467f51a1decb2a007e0fd1a87f773ecb6bc51a7d9894d0ea","first_computed_at":"2026-05-18T00:44:38.063197Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:38.063197Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wbrvbhs6jnc3WZVMGhAuU+GOzYK2pK0TOLp02i4wqDp+1fMggzzA0PW7DdiQAHHKqY/VvMewoJgWYo6JpHmNBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:38.063624Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.04445","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b948bd0ada35b40f81bd03a1210e38b8c16d7b76b1ac31431e9e8a95966b3ff","sha256:2adbdbc96bdf42d83e3a934df1ec1f3838c118195d302e2d5b872e481b628e57"],"state_sha256":"b0ca5bbad5b8146932dd02f39c7dce31464234ada843d2a673a055d63daa2aa0"}