{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:T4BFM6KMVBEVTP3DKZDEWR2DYX","short_pith_number":"pith:T4BFM6KM","canonical_record":{"source":{"id":"1610.01758","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-06T07:22:18Z","cross_cats_sorted":[],"title_canon_sha256":"473161e54bfc5626f891705515d686897f4d94b242f392e88684c02df3efd0f5","abstract_canon_sha256":"816d1c916ba79e626111191a05a4a4f6261953da2b48dd953945c31081f8af52"},"schema_version":"1.0"},"canonical_sha256":"9f0256794ca84959bf6356464b4743c5fc8a702666eab6b85ff7577620919762","source":{"kind":"arxiv","id":"1610.01758","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.01758","created_at":"2026-05-18T01:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"1610.01758v1","created_at":"2026-05-18T01:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.01758","created_at":"2026-05-18T01:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"T4BFM6KMVBEV","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"T4BFM6KMVBEVTP3D","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"T4BFM6KM","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:T4BFM6KMVBEVTP3DKZDEWR2DYX","target":"record","payload":{"canonical_record":{"source":{"id":"1610.01758","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-06T07:22:18Z","cross_cats_sorted":[],"title_canon_sha256":"473161e54bfc5626f891705515d686897f4d94b242f392e88684c02df3efd0f5","abstract_canon_sha256":"816d1c916ba79e626111191a05a4a4f6261953da2b48dd953945c31081f8af52"},"schema_version":"1.0"},"canonical_sha256":"9f0256794ca84959bf6356464b4743c5fc8a702666eab6b85ff7577620919762","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:04.968465Z","signature_b64":"ugJIMobkCLSY3UIbePurOdLSqeSKQX61GCLRZNCeYqyOeHro0RDcVfynRICbZOo8QUGTO3tEaprSw8KrlHFSBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f0256794ca84959bf6356464b4743c5fc8a702666eab6b85ff7577620919762","last_reissued_at":"2026-05-18T01:03:04.967756Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:04.967756Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.01758","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":"2026-05-18T01:03:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/nx6sf8R4vcDoTWxvu6rI0lOY4ZMeLX/aIH9P/gU8Jmuu3vo63OOqqRgytF2lktMmBRy14/HH0ATyA29i/3yAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:44:17.439352Z"},"content_sha256":"324443a8c0d9b37643e7f29e73c75da4f9671dceae461109bc70ff012d133f59","schema_version":"1.0","event_id":"sha256:324443a8c0d9b37643e7f29e73c75da4f9671dceae461109bc70ff012d133f59"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:T4BFM6KMVBEVTP3DKZDEWR2DYX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Comment on pyramidal structure formation at the interface between III/V semiconductors and silicon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Matthias M. May, Oleksandr Romanyuk, Oliver Supplie, Peter Kleinschmidt, Sebastian Bruckner, Thomas Hannappel","submitted_at":"2016-10-06T07:22:18Z","abstract_excerpt":"GaP/Si(100) is considered as pseudomporphic virtual substrate for III/V-on-Si integration in order to reduce defects related to polar-on-nonpolar heteroepitaxy. The atomic structure of the GaP/Si(100) heterointerface is decisive to yield low defect densities and its dependence on nucleation conditions is still under debate. Recently, Beyer et al. suggested the formation of a 'pyramidal' structure as a general mechanism at polar-on-nonpolar interfaces [A. Beyer et al., Chem. Mat. 28, 3265 (2016)]. However, their DFT studies neglected the dependence of the calculated interfacial energies on appr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.01758","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":"2026-05-18T01:03:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CZKs9v7TAMVz2RwH2Ai7SZBPVz+mdS3TOFzuxRu/j5O1Kzp/9dCykTMbR3i42QCUhh4+/JKz4efyRWPO/cA2Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:44:17.440182Z"},"content_sha256":"25fece63377d81f9c1b885cf06f5deca9deed627ad0592f408be7f53d1890be7","schema_version":"1.0","event_id":"sha256:25fece63377d81f9c1b885cf06f5deca9deed627ad0592f408be7f53d1890be7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T4BFM6KMVBEVTP3DKZDEWR2DYX/bundle.json","state_url":"https://pith.science/pith/T4BFM6KMVBEVTP3DKZDEWR2DYX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T4BFM6KMVBEVTP3DKZDEWR2DYX/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":"2026-06-05T00:44:17Z","links":{"resolver":"https://pith.science/pith/T4BFM6KMVBEVTP3DKZDEWR2DYX","bundle":"https://pith.science/pith/T4BFM6KMVBEVTP3DKZDEWR2DYX/bundle.json","state":"https://pith.science/pith/T4BFM6KMVBEVTP3DKZDEWR2DYX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T4BFM6KMVBEVTP3DKZDEWR2DYX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:T4BFM6KMVBEVTP3DKZDEWR2DYX","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":"816d1c916ba79e626111191a05a4a4f6261953da2b48dd953945c31081f8af52","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-06T07:22:18Z","title_canon_sha256":"473161e54bfc5626f891705515d686897f4d94b242f392e88684c02df3efd0f5"},"schema_version":"1.0","source":{"id":"1610.01758","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.01758","created_at":"2026-05-18T01:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"1610.01758v1","created_at":"2026-05-18T01:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.01758","created_at":"2026-05-18T01:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"T4BFM6KMVBEV","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"T4BFM6KMVBEVTP3D","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"T4BFM6KM","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:25fece63377d81f9c1b885cf06f5deca9deed627ad0592f408be7f53d1890be7","target":"graph","created_at":"2026-05-18T01:03:04Z","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":"GaP/Si(100) is considered as pseudomporphic virtual substrate for III/V-on-Si integration in order to reduce defects related to polar-on-nonpolar heteroepitaxy. The atomic structure of the GaP/Si(100) heterointerface is decisive to yield low defect densities and its dependence on nucleation conditions is still under debate. Recently, Beyer et al. suggested the formation of a 'pyramidal' structure as a general mechanism at polar-on-nonpolar interfaces [A. Beyer et al., Chem. Mat. 28, 3265 (2016)]. However, their DFT studies neglected the dependence of the calculated interfacial energies on appr","authors_text":"Matthias M. May, Oleksandr Romanyuk, Oliver Supplie, Peter Kleinschmidt, Sebastian Bruckner, Thomas Hannappel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-06T07:22:18Z","title":"Comment on pyramidal structure formation at the interface between III/V semiconductors and silicon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.01758","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":"sha256:324443a8c0d9b37643e7f29e73c75da4f9671dceae461109bc70ff012d133f59","target":"record","created_at":"2026-05-18T01:03:04Z","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":"816d1c916ba79e626111191a05a4a4f6261953da2b48dd953945c31081f8af52","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-06T07:22:18Z","title_canon_sha256":"473161e54bfc5626f891705515d686897f4d94b242f392e88684c02df3efd0f5"},"schema_version":"1.0","source":{"id":"1610.01758","kind":"arxiv","version":1}},"canonical_sha256":"9f0256794ca84959bf6356464b4743c5fc8a702666eab6b85ff7577620919762","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f0256794ca84959bf6356464b4743c5fc8a702666eab6b85ff7577620919762","first_computed_at":"2026-05-18T01:03:04.967756Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:04.967756Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ugJIMobkCLSY3UIbePurOdLSqeSKQX61GCLRZNCeYqyOeHro0RDcVfynRICbZOo8QUGTO3tEaprSw8KrlHFSBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:04.968465Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.01758","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:324443a8c0d9b37643e7f29e73c75da4f9671dceae461109bc70ff012d133f59","sha256:25fece63377d81f9c1b885cf06f5deca9deed627ad0592f408be7f53d1890be7"],"state_sha256":"06b770e7869097fa1cfb05a3f75f98e9b719a4b40e8738e0cb8bc5cba52cdc8f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"73LEEcrjsnwjJ64InOqtIODyKn2WRpSnLUE/rzFwtHpLVu3FzSXWYWF8lVo0fqA9z3IZROzHgD2FJ5yzit5aAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T00:44:17.443373Z","bundle_sha256":"6ceaef7fdc010a91a124d9a7e4950ad63a506afbcffdba70997630923246adc3"}}