{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3Y4KAA3HUE4QVPVYUS4EYRAQLO","short_pith_number":"pith:3Y4KAA3H","canonical_record":{"source":{"id":"1805.05223","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-14T15:18:21Z","cross_cats_sorted":[],"title_canon_sha256":"ecb3b5afc01785c0d5d09fc26fa113737fef34527f1edfdd38a6f34e0de10ef8","abstract_canon_sha256":"7953f163097693d64a75b97e4ea9aa42a80ac59d1c8a1675cfbe6f6c8c3bc384"},"schema_version":"1.0"},"canonical_sha256":"de38a00367a1390abeb8a4b84c44105b825f593dc9ee8eecf0a1de31a49ea0b8","source":{"kind":"arxiv","id":"1805.05223","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.05223","created_at":"2026-05-18T00:01:23Z"},{"alias_kind":"arxiv_version","alias_value":"1805.05223v1","created_at":"2026-05-18T00:01:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.05223","created_at":"2026-05-18T00:01:23Z"},{"alias_kind":"pith_short_12","alias_value":"3Y4KAA3HUE4Q","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3Y4KAA3HUE4QVPVY","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3Y4KAA3H","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3Y4KAA3HUE4QVPVYUS4EYRAQLO","target":"record","payload":{"canonical_record":{"source":{"id":"1805.05223","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-14T15:18:21Z","cross_cats_sorted":[],"title_canon_sha256":"ecb3b5afc01785c0d5d09fc26fa113737fef34527f1edfdd38a6f34e0de10ef8","abstract_canon_sha256":"7953f163097693d64a75b97e4ea9aa42a80ac59d1c8a1675cfbe6f6c8c3bc384"},"schema_version":"1.0"},"canonical_sha256":"de38a00367a1390abeb8a4b84c44105b825f593dc9ee8eecf0a1de31a49ea0b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:23.353409Z","signature_b64":"yF0KwHDtbj4w9NzQXp8fppSdNvtcllPALKOPEZ2BWCUeWPSDdlnFHhBlT0S085cYDf+ygF2mX07JwMlVec1UBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de38a00367a1390abeb8a4b84c44105b825f593dc9ee8eecf0a1de31a49ea0b8","last_reissued_at":"2026-05-18T00:01:23.353049Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:23.353049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.05223","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":"2026-05-18T00:01:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i95hc3mwkAV6agfj7GSuYy8745CStq76TYFw2wIQRj1cidUoMXqpZjTKbFdIQbqscu5sOUceKB5ORKWRX9IrCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T19:59:35.208952Z"},"content_sha256":"66e87e34b9fdb70da55d4431029771ccd6d26133252104cb82c30e0f217ba092","schema_version":"1.0","event_id":"sha256:66e87e34b9fdb70da55d4431029771ccd6d26133252104cb82c30e0f217ba092"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3Y4KAA3HUE4QVPVYUS4EYRAQLO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Theory and design of In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$ mid-infrared semiconductor lasers: type-I quantum wells for emission beyond 3 $\\mu$m on InP substrates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Christopher A. Broderick, Eoin P. O'Reilly, Judy M. Rorison, Stephen J. Sweeney, Wanshu Xiong","submitted_at":"2018-05-14T15:18:21Z","abstract_excerpt":"We present a theoretical analysis and optimisation of the properties and performance of mid-infrared semiconductor lasers based on the dilute bismide alloy In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$, grown on conventional (001) InP substrates. The ability to independently vary the epitaxial strain and emission wavelength in this quaternary alloy provides significant scope for band structure engineering. Our calculations demonstrate that structures based on compressively strained In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$ quantum wells (QWs) can readily achieve emission wavelengths in the 3 -- 5 $\\mu$m ran"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.05223","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":"2026-05-18T00:01:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eSSL71sVBwgo7uhRv4Dg163Xp2fbukA4waw8OQldN5oSoxxhN1y+dvpRqLEuu+uEnNro96f89YeWWiRbbV6JCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T19:59:35.209300Z"},"content_sha256":"e4cbf60fa6a6a29121c1609f8700fe58b2a86e8d1bb88f0f7d188269284ffaf6","schema_version":"1.0","event_id":"sha256:e4cbf60fa6a6a29121c1609f8700fe58b2a86e8d1bb88f0f7d188269284ffaf6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3Y4KAA3HUE4QVPVYUS4EYRAQLO/bundle.json","state_url":"https://pith.science/pith/3Y4KAA3HUE4QVPVYUS4EYRAQLO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3Y4KAA3HUE4QVPVYUS4EYRAQLO/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":"2026-06-21T19:59:35Z","links":{"resolver":"https://pith.science/pith/3Y4KAA3HUE4QVPVYUS4EYRAQLO","bundle":"https://pith.science/pith/3Y4KAA3HUE4QVPVYUS4EYRAQLO/bundle.json","state":"https://pith.science/pith/3Y4KAA3HUE4QVPVYUS4EYRAQLO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3Y4KAA3HUE4QVPVYUS4EYRAQLO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3Y4KAA3HUE4QVPVYUS4EYRAQLO","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":"7953f163097693d64a75b97e4ea9aa42a80ac59d1c8a1675cfbe6f6c8c3bc384","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-14T15:18:21Z","title_canon_sha256":"ecb3b5afc01785c0d5d09fc26fa113737fef34527f1edfdd38a6f34e0de10ef8"},"schema_version":"1.0","source":{"id":"1805.05223","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.05223","created_at":"2026-05-18T00:01:23Z"},{"alias_kind":"arxiv_version","alias_value":"1805.05223v1","created_at":"2026-05-18T00:01:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.05223","created_at":"2026-05-18T00:01:23Z"},{"alias_kind":"pith_short_12","alias_value":"3Y4KAA3HUE4Q","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3Y4KAA3HUE4QVPVY","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3Y4KAA3H","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:e4cbf60fa6a6a29121c1609f8700fe58b2a86e8d1bb88f0f7d188269284ffaf6","target":"graph","created_at":"2026-05-18T00:01:23Z","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 theoretical analysis and optimisation of the properties and performance of mid-infrared semiconductor lasers based on the dilute bismide alloy In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$, grown on conventional (001) InP substrates. The ability to independently vary the epitaxial strain and emission wavelength in this quaternary alloy provides significant scope for band structure engineering. Our calculations demonstrate that structures based on compressively strained In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$ quantum wells (QWs) can readily achieve emission wavelengths in the 3 -- 5 $\\mu$m ran","authors_text":"Christopher A. Broderick, Eoin P. O'Reilly, Judy M. Rorison, Stephen J. Sweeney, Wanshu Xiong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-14T15:18:21Z","title":"Theory and design of In$_{x}$Ga$_{1-x}$As$_{1-y}$Bi$_{y}$ mid-infrared semiconductor lasers: type-I quantum wells for emission beyond 3 $\\mu$m on InP substrates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.05223","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":"sha256:66e87e34b9fdb70da55d4431029771ccd6d26133252104cb82c30e0f217ba092","target":"record","created_at":"2026-05-18T00:01:23Z","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":"7953f163097693d64a75b97e4ea9aa42a80ac59d1c8a1675cfbe6f6c8c3bc384","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-14T15:18:21Z","title_canon_sha256":"ecb3b5afc01785c0d5d09fc26fa113737fef34527f1edfdd38a6f34e0de10ef8"},"schema_version":"1.0","source":{"id":"1805.05223","kind":"arxiv","version":1}},"canonical_sha256":"de38a00367a1390abeb8a4b84c44105b825f593dc9ee8eecf0a1de31a49ea0b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de38a00367a1390abeb8a4b84c44105b825f593dc9ee8eecf0a1de31a49ea0b8","first_computed_at":"2026-05-18T00:01:23.353049Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:23.353049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yF0KwHDtbj4w9NzQXp8fppSdNvtcllPALKOPEZ2BWCUeWPSDdlnFHhBlT0S085cYDf+ygF2mX07JwMlVec1UBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:23.353409Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.05223","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66e87e34b9fdb70da55d4431029771ccd6d26133252104cb82c30e0f217ba092","sha256:e4cbf60fa6a6a29121c1609f8700fe58b2a86e8d1bb88f0f7d188269284ffaf6"],"state_sha256":"e6f567a1c93415e949143d2e537c9c59adeadb3e4f3132c16496d2ff5aecdc76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c7GN+gQj++34Qe3PQJoOyThBRQX9hlgv0dHJZl2VQisqIPcz7XoB/3tWcAxibGDhrLNTawo1i0PRmq6zD9/FAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T19:59:35.211680Z","bundle_sha256":"5b160ddcaaedd15349da9d0ef11e368e281688e787692461b06c46b76327f7f9"}}