{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:LVCMIVU33F74YAU2S7JVGLVOKO","short_pith_number":"pith:LVCMIVU3","canonical_record":{"source":{"id":"1105.0044","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-30T04:33:37Z","cross_cats_sorted":[],"title_canon_sha256":"542db5991545def955bd563f7f4fed4203e755b049430bb905553dd4cdabf693","abstract_canon_sha256":"cc7d17fdf0b3dd4cc60a7d754df80c86e49b508c07533ca1d0823c088d67ee58"},"schema_version":"1.0"},"canonical_sha256":"5d44c4569bd97fcc029a97d3532eae539369b1a11075df03916675e8d49f4e71","source":{"kind":"arxiv","id":"1105.0044","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0044","created_at":"2026-05-18T04:12:54Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0044v2","created_at":"2026-05-18T04:12:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0044","created_at":"2026-05-18T04:12:54Z"},{"alias_kind":"pith_short_12","alias_value":"LVCMIVU33F74","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"LVCMIVU33F74YAU2","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"LVCMIVU3","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:LVCMIVU33F74YAU2S7JVGLVOKO","target":"record","payload":{"canonical_record":{"source":{"id":"1105.0044","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-30T04:33:37Z","cross_cats_sorted":[],"title_canon_sha256":"542db5991545def955bd563f7f4fed4203e755b049430bb905553dd4cdabf693","abstract_canon_sha256":"cc7d17fdf0b3dd4cc60a7d754df80c86e49b508c07533ca1d0823c088d67ee58"},"schema_version":"1.0"},"canonical_sha256":"5d44c4569bd97fcc029a97d3532eae539369b1a11075df03916675e8d49f4e71","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:12:54.601005Z","signature_b64":"7BgOTfbyMh9KuWvhJd9JDqKibRPPlkW2dL0CEK6411eXZeGayE3T7gsYmvvaca1+I673ijC0yt9l/81FCsEFCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5d44c4569bd97fcc029a97d3532eae539369b1a11075df03916675e8d49f4e71","last_reissued_at":"2026-05-18T04:12:54.600428Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:12:54.600428Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.0044","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":"2026-05-18T04:12:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A3+zGuvyH6Dc5mgxDrV+nlDb3EwLz2iHrS0NEmJ3shqxj4MLBtVLO8JGK0swTSqNUjCeISsKZhh+djTHJLJMCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:50:34.556523Z"},"content_sha256":"46490e853d91268b90074f9f82c67250efc65c4d6c6bc60db3e3359ef65b3500","schema_version":"1.0","event_id":"sha256:46490e853d91268b90074f9f82c67250efc65c4d6c6bc60db3e3359ef65b3500"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:LVCMIVU33F74YAU2S7JVGLVOKO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tensile-Strained Germanium-on-Insulator Substrate Fabrication for Silicon-Compatible Optoelectronics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Dany-Sebastien Ly-Gagnon, David A. B. Miller, J. Raja Jain, Justin S. White, Krishna C. Balram, Mark L. Brongersma, Roger T. Howe","submitted_at":"2011-04-30T04:33:37Z","abstract_excerpt":"We present a method to fabricate tensile-strained germanium-on-insulator (GOI) substrates using heteroepitaxy and layer transfer techniques. The motivation is to obtain a high-quality wafer-scale GOI platform suitable for silicon-compatible optoelectronic device fabrication. Crystal quality is assessed using X-Ray Diffraction (XRD) and Transmission Electron Microscopy. A biaxial tensile film strain of 0.16% is verified by XRD. Suitability for device manufacturing is demonstrated through fabrication and characterization of metal-semiconductor-metal photodetectors that exhibit photoresponse beyo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0044","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":"2026-05-18T04:12:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lmxzcdiwez/lmbbZkF02+mfUugH5uPTpWpdhRTKlxsZUo88rA8vRpfi94pjfQ/4vWCntGQshLRtLh/flyibDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:50:34.557080Z"},"content_sha256":"2f1dcab307ef88e859adffa6f1c3de209a405da14b5e08b36c61b1263f07a535","schema_version":"1.0","event_id":"sha256:2f1dcab307ef88e859adffa6f1c3de209a405da14b5e08b36c61b1263f07a535"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LVCMIVU33F74YAU2S7JVGLVOKO/bundle.json","state_url":"https://pith.science/pith/LVCMIVU33F74YAU2S7JVGLVOKO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LVCMIVU33F74YAU2S7JVGLVOKO/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":"2026-05-31T02:50:34Z","links":{"resolver":"https://pith.science/pith/LVCMIVU33F74YAU2S7JVGLVOKO","bundle":"https://pith.science/pith/LVCMIVU33F74YAU2S7JVGLVOKO/bundle.json","state":"https://pith.science/pith/LVCMIVU33F74YAU2S7JVGLVOKO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LVCMIVU33F74YAU2S7JVGLVOKO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:LVCMIVU33F74YAU2S7JVGLVOKO","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":"cc7d17fdf0b3dd4cc60a7d754df80c86e49b508c07533ca1d0823c088d67ee58","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-30T04:33:37Z","title_canon_sha256":"542db5991545def955bd563f7f4fed4203e755b049430bb905553dd4cdabf693"},"schema_version":"1.0","source":{"id":"1105.0044","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0044","created_at":"2026-05-18T04:12:54Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0044v2","created_at":"2026-05-18T04:12:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0044","created_at":"2026-05-18T04:12:54Z"},{"alias_kind":"pith_short_12","alias_value":"LVCMIVU33F74","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"LVCMIVU33F74YAU2","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"LVCMIVU3","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:2f1dcab307ef88e859adffa6f1c3de209a405da14b5e08b36c61b1263f07a535","target":"graph","created_at":"2026-05-18T04:12:54Z","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 present a method to fabricate tensile-strained germanium-on-insulator (GOI) substrates using heteroepitaxy and layer transfer techniques. The motivation is to obtain a high-quality wafer-scale GOI platform suitable for silicon-compatible optoelectronic device fabrication. Crystal quality is assessed using X-Ray Diffraction (XRD) and Transmission Electron Microscopy. A biaxial tensile film strain of 0.16% is verified by XRD. Suitability for device manufacturing is demonstrated through fabrication and characterization of metal-semiconductor-metal photodetectors that exhibit photoresponse beyo","authors_text":"Dany-Sebastien Ly-Gagnon, David A. B. Miller, J. Raja Jain, Justin S. White, Krishna C. Balram, Mark L. Brongersma, Roger T. Howe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-30T04:33:37Z","title":"Tensile-Strained Germanium-on-Insulator Substrate Fabrication for Silicon-Compatible Optoelectronics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0044","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":"sha256:46490e853d91268b90074f9f82c67250efc65c4d6c6bc60db3e3359ef65b3500","target":"record","created_at":"2026-05-18T04:12:54Z","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":"cc7d17fdf0b3dd4cc60a7d754df80c86e49b508c07533ca1d0823c088d67ee58","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2011-04-30T04:33:37Z","title_canon_sha256":"542db5991545def955bd563f7f4fed4203e755b049430bb905553dd4cdabf693"},"schema_version":"1.0","source":{"id":"1105.0044","kind":"arxiv","version":2}},"canonical_sha256":"5d44c4569bd97fcc029a97d3532eae539369b1a11075df03916675e8d49f4e71","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d44c4569bd97fcc029a97d3532eae539369b1a11075df03916675e8d49f4e71","first_computed_at":"2026-05-18T04:12:54.600428Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:12:54.600428Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7BgOTfbyMh9KuWvhJd9JDqKibRPPlkW2dL0CEK6411eXZeGayE3T7gsYmvvaca1+I673ijC0yt9l/81FCsEFCw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:12:54.601005Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.0044","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46490e853d91268b90074f9f82c67250efc65c4d6c6bc60db3e3359ef65b3500","sha256:2f1dcab307ef88e859adffa6f1c3de209a405da14b5e08b36c61b1263f07a535"],"state_sha256":"7bcd6853e0de4e8a2b305f6ec5adb225b84092e3c66b2b833fbbdfccdf8acbcc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AfEYWTZSLl51UBBJkWxxC0eHilUCdEvhHxSEdwT43wxxFP7ucVllN2Yshruow9Gin2f14V8evw9ewekWlc1pCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T02:50:34.560407Z","bundle_sha256":"29071beba659fe0d87ee8c812b0508a62a4678aad48226c6aa9a5401499ce344"}}