{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:52CAMW7NPOET2ZRCC2JCZOKD5T","short_pith_number":"pith:52CAMW7N","canonical_record":{"source":{"id":"1606.03306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-06-10T13:07:24Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"a20333a6d35f9ee3a0e0dceea1ea3885e1f072f3cff2a32d8fd7e39f9eac0306","abstract_canon_sha256":"7a19707dbf70d3f10510f022849ba9e0324cfe03c2ec9668a28b8db4c1b92aca"},"schema_version":"1.0"},"canonical_sha256":"ee84065bed7b893d662216922cb943ecd885297760f3a756a5ae0af1f3e48beb","source":{"kind":"arxiv","id":"1606.03306","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.03306","created_at":"2026-05-18T01:12:37Z"},{"alias_kind":"arxiv_version","alias_value":"1606.03306v1","created_at":"2026-05-18T01:12:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.03306","created_at":"2026-05-18T01:12:37Z"},{"alias_kind":"pith_short_12","alias_value":"52CAMW7NPOET","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"52CAMW7NPOET2ZRC","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"52CAMW7N","created_at":"2026-05-18T12:29:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:52CAMW7NPOET2ZRCC2JCZOKD5T","target":"record","payload":{"canonical_record":{"source":{"id":"1606.03306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-06-10T13:07:24Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"a20333a6d35f9ee3a0e0dceea1ea3885e1f072f3cff2a32d8fd7e39f9eac0306","abstract_canon_sha256":"7a19707dbf70d3f10510f022849ba9e0324cfe03c2ec9668a28b8db4c1b92aca"},"schema_version":"1.0"},"canonical_sha256":"ee84065bed7b893d662216922cb943ecd885297760f3a756a5ae0af1f3e48beb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:37.177219Z","signature_b64":"V2ETmduWqjGWV7HDYN9kvw4i56ubn06IqyroMa9yOCaJ/ctAuKgYay3vAySp7kj0O2+Pm++3IS6YAqWmRSXHDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee84065bed7b893d662216922cb943ecd885297760f3a756a5ae0af1f3e48beb","last_reissued_at":"2026-05-18T01:12:37.176800Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:37.176800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.03306","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":"2026-05-18T01:12:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fqF4tIlNZkxbovRU0S/cyoHrAYIo8z4uaTO4XRZOatbqVKxQCYiaV2vHuEBIz34pqf4uTa1gBPetcXLzhv2oAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:55:14.735284Z"},"content_sha256":"ce2d6520379c8797b8ebbe6287d8571d6d97d0cad040b619b41f550761489aa8","schema_version":"1.0","event_id":"sha256:ce2d6520379c8797b8ebbe6287d8571d6d97d0cad040b619b41f550761489aa8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:52CAMW7NPOET2ZRCC2JCZOKD5T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical Visualization of Radiative Recombination at Partial Dislocations in GaAs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Andreas D. Wieck, Arne Ludwig, Ashish K. Rai, Kai-Mei C. Fu, Todd Karin, Xiayu Linpeng","submitted_at":"2016-06-10T13:07:24Z","abstract_excerpt":"Individual dislocations in an ultra-pure GaAs epilayer are investigated with spatially and spectrally resolved photoluminescence imaging at 5~K. We find that some dislocations act as strong non-radiative recombination centers, while others are efficient radiative recombination centers. We characterize luminescence bands in GaAs due to dislocations, stacking faults, and pairs of stacking faults. These results indicate that low-temperature, spatially-resolved photoluminescence imaging can be a powerful tool for identifying luminescence bands of extended defects. This mapping could then be used t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.03306","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":"2026-05-18T01:12:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nr/QGQ7uvC11WNYHVVZ4zDtZqeARsTlX17mFWcsgC86MQHJmHv89KiHXf83yJsRZCKeooTldxB8Zx1hFYIdQCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:55:14.735646Z"},"content_sha256":"80f8e257f7605d8ba801bc69d7908c98791e6e265bdaca0609fa8f0305b21ed4","schema_version":"1.0","event_id":"sha256:80f8e257f7605d8ba801bc69d7908c98791e6e265bdaca0609fa8f0305b21ed4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/52CAMW7NPOET2ZRCC2JCZOKD5T/bundle.json","state_url":"https://pith.science/pith/52CAMW7NPOET2ZRCC2JCZOKD5T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/52CAMW7NPOET2ZRCC2JCZOKD5T/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":"2026-06-01T19:55:14Z","links":{"resolver":"https://pith.science/pith/52CAMW7NPOET2ZRCC2JCZOKD5T","bundle":"https://pith.science/pith/52CAMW7NPOET2ZRCC2JCZOKD5T/bundle.json","state":"https://pith.science/pith/52CAMW7NPOET2ZRCC2JCZOKD5T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/52CAMW7NPOET2ZRCC2JCZOKD5T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:52CAMW7NPOET2ZRCC2JCZOKD5T","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":"7a19707dbf70d3f10510f022849ba9e0324cfe03c2ec9668a28b8db4c1b92aca","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-06-10T13:07:24Z","title_canon_sha256":"a20333a6d35f9ee3a0e0dceea1ea3885e1f072f3cff2a32d8fd7e39f9eac0306"},"schema_version":"1.0","source":{"id":"1606.03306","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.03306","created_at":"2026-05-18T01:12:37Z"},{"alias_kind":"arxiv_version","alias_value":"1606.03306v1","created_at":"2026-05-18T01:12:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.03306","created_at":"2026-05-18T01:12:37Z"},{"alias_kind":"pith_short_12","alias_value":"52CAMW7NPOET","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"52CAMW7NPOET2ZRC","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"52CAMW7N","created_at":"2026-05-18T12:29:58Z"}],"graph_snapshots":[{"event_id":"sha256:80f8e257f7605d8ba801bc69d7908c98791e6e265bdaca0609fa8f0305b21ed4","target":"graph","created_at":"2026-05-18T01:12:37Z","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":"Individual dislocations in an ultra-pure GaAs epilayer are investigated with spatially and spectrally resolved photoluminescence imaging at 5~K. We find that some dislocations act as strong non-radiative recombination centers, while others are efficient radiative recombination centers. We characterize luminescence bands in GaAs due to dislocations, stacking faults, and pairs of stacking faults. These results indicate that low-temperature, spatially-resolved photoluminescence imaging can be a powerful tool for identifying luminescence bands of extended defects. This mapping could then be used t","authors_text":"Andreas D. Wieck, Arne Ludwig, Ashish K. Rai, Kai-Mei C. Fu, Todd Karin, Xiayu Linpeng","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-06-10T13:07:24Z","title":"Optical Visualization of Radiative Recombination at Partial Dislocations in GaAs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.03306","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:ce2d6520379c8797b8ebbe6287d8571d6d97d0cad040b619b41f550761489aa8","target":"record","created_at":"2026-05-18T01:12:37Z","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":"7a19707dbf70d3f10510f022849ba9e0324cfe03c2ec9668a28b8db4c1b92aca","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-06-10T13:07:24Z","title_canon_sha256":"a20333a6d35f9ee3a0e0dceea1ea3885e1f072f3cff2a32d8fd7e39f9eac0306"},"schema_version":"1.0","source":{"id":"1606.03306","kind":"arxiv","version":1}},"canonical_sha256":"ee84065bed7b893d662216922cb943ecd885297760f3a756a5ae0af1f3e48beb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee84065bed7b893d662216922cb943ecd885297760f3a756a5ae0af1f3e48beb","first_computed_at":"2026-05-18T01:12:37.176800Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:37.176800Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V2ETmduWqjGWV7HDYN9kvw4i56ubn06IqyroMa9yOCaJ/ctAuKgYay3vAySp7kj0O2+Pm++3IS6YAqWmRSXHDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:37.177219Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.03306","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce2d6520379c8797b8ebbe6287d8571d6d97d0cad040b619b41f550761489aa8","sha256:80f8e257f7605d8ba801bc69d7908c98791e6e265bdaca0609fa8f0305b21ed4"],"state_sha256":"2aa54145e32fffe2afc5f244e8b39b1aaddfe8b08993d705467b5fe603ee8988"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GpOF8mglfM3jqsux4+o7kSQqP1maeUquu7dkJJXudAyi7waMX88UY3PPrAPhRVGogxEafASK9whFcveIZFCnDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T19:55:14.737728Z","bundle_sha256":"d2f45402ece0113737169c3295694f3520331555eecdd079bc03bdda5a398935"}}