{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:QI5R2D77PK3NZVVMGKUAXF6FWG","short_pith_number":"pith:QI5R2D77","canonical_record":{"source":{"id":"1601.05444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-20T21:36:50Z","cross_cats_sorted":[],"title_canon_sha256":"6b2ba8b98d86a655f832e4486120c329d37fae43e0f8e9d953f3ccc1e49eab18","abstract_canon_sha256":"85f449f19b0e9cc7240f65c888a53f87aebd871ac5b4e3f095115b12291cc330"},"schema_version":"1.0"},"canonical_sha256":"823b1d0fff7ab6dcd6ac32a80b97c5b1bd7111b7bce6f842fc22f089ec42226b","source":{"kind":"arxiv","id":"1601.05444","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.05444","created_at":"2026-05-18T01:18:18Z"},{"alias_kind":"arxiv_version","alias_value":"1601.05444v1","created_at":"2026-05-18T01:18:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.05444","created_at":"2026-05-18T01:18:18Z"},{"alias_kind":"pith_short_12","alias_value":"QI5R2D77PK3N","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"QI5R2D77PK3NZVVM","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"QI5R2D77","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:QI5R2D77PK3NZVVMGKUAXF6FWG","target":"record","payload":{"canonical_record":{"source":{"id":"1601.05444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-20T21:36:50Z","cross_cats_sorted":[],"title_canon_sha256":"6b2ba8b98d86a655f832e4486120c329d37fae43e0f8e9d953f3ccc1e49eab18","abstract_canon_sha256":"85f449f19b0e9cc7240f65c888a53f87aebd871ac5b4e3f095115b12291cc330"},"schema_version":"1.0"},"canonical_sha256":"823b1d0fff7ab6dcd6ac32a80b97c5b1bd7111b7bce6f842fc22f089ec42226b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:18.087626Z","signature_b64":"3+C2ccl/Tn7TaIbuphr2kYci/DWf4k6wqHNeoXNQ8xMXGSbr72YT3EGFvKbITZ7P4XQTvFd0N+S/L91QDvb0Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"823b1d0fff7ab6dcd6ac32a80b97c5b1bd7111b7bce6f842fc22f089ec42226b","last_reissued_at":"2026-05-18T01:18:18.087076Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:18.087076Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.05444","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":"2026-05-18T01:18:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9HZGDOPhXo+Ea+cItYDDBVe7MEJPM9imZl9x+fgw8tttUGz9PHDyrDM0/wRKcuOPDqu32u5d3Zu6TUYvPDW+Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T07:04:48.470548Z"},"content_sha256":"e7678c8d802dc0771479b5c01e52b21148c1c6afaf893471d05ad3059e3de759","schema_version":"1.0","event_id":"sha256:e7678c8d802dc0771479b5c01e52b21148c1c6afaf893471d05ad3059e3de759"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:QI5R2D77PK3NZVVMGKUAXF6FWG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing surface recombination velocities in semiconductors using two-photon microscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Benoit Gaury, Paul Haney","submitted_at":"2016-01-20T21:36:50Z","abstract_excerpt":"The determination of minority-carrier lifetimes and surface recombination velocities is essential for the development of semiconductor technologies such as solar cells. The recent development of two-photon time-resolved microscopy allows for better measurements of bulk and subsurface interfaces properties. Here we analyze the diffusion problem related to this optical technique. Our three-dimensional treatment enables us to separate lifetime (recombination) from transport effects (diffusion) in the photoluminescence intensity. It also allows us to consider surface recombination occurring at a v"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.05444","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":"2026-05-18T01:18:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CgrI6hAOeKnnJae+9hzfh6khqHJnkJI1ezZ4HMxhRW34LtD4s/zM3AKlcDmySPH3Rdmv9jp7IcN1DeUTWSpVDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T07:04:48.471032Z"},"content_sha256":"9cbf8e579fe0795468005c3ff38bf5a151a30874f22ff05c0f1e12b5d37dbd9c","schema_version":"1.0","event_id":"sha256:9cbf8e579fe0795468005c3ff38bf5a151a30874f22ff05c0f1e12b5d37dbd9c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QI5R2D77PK3NZVVMGKUAXF6FWG/bundle.json","state_url":"https://pith.science/pith/QI5R2D77PK3NZVVMGKUAXF6FWG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QI5R2D77PK3NZVVMGKUAXF6FWG/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":"2026-06-30T07:04:48Z","links":{"resolver":"https://pith.science/pith/QI5R2D77PK3NZVVMGKUAXF6FWG","bundle":"https://pith.science/pith/QI5R2D77PK3NZVVMGKUAXF6FWG/bundle.json","state":"https://pith.science/pith/QI5R2D77PK3NZVVMGKUAXF6FWG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QI5R2D77PK3NZVVMGKUAXF6FWG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:QI5R2D77PK3NZVVMGKUAXF6FWG","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":"85f449f19b0e9cc7240f65c888a53f87aebd871ac5b4e3f095115b12291cc330","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-20T21:36:50Z","title_canon_sha256":"6b2ba8b98d86a655f832e4486120c329d37fae43e0f8e9d953f3ccc1e49eab18"},"schema_version":"1.0","source":{"id":"1601.05444","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.05444","created_at":"2026-05-18T01:18:18Z"},{"alias_kind":"arxiv_version","alias_value":"1601.05444v1","created_at":"2026-05-18T01:18:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.05444","created_at":"2026-05-18T01:18:18Z"},{"alias_kind":"pith_short_12","alias_value":"QI5R2D77PK3N","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"QI5R2D77PK3NZVVM","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"QI5R2D77","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:9cbf8e579fe0795468005c3ff38bf5a151a30874f22ff05c0f1e12b5d37dbd9c","target":"graph","created_at":"2026-05-18T01:18:18Z","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":"The determination of minority-carrier lifetimes and surface recombination velocities is essential for the development of semiconductor technologies such as solar cells. The recent development of two-photon time-resolved microscopy allows for better measurements of bulk and subsurface interfaces properties. Here we analyze the diffusion problem related to this optical technique. Our three-dimensional treatment enables us to separate lifetime (recombination) from transport effects (diffusion) in the photoluminescence intensity. It also allows us to consider surface recombination occurring at a v","authors_text":"Benoit Gaury, Paul Haney","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-20T21:36:50Z","title":"Probing surface recombination velocities in semiconductors using two-photon microscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.05444","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:e7678c8d802dc0771479b5c01e52b21148c1c6afaf893471d05ad3059e3de759","target":"record","created_at":"2026-05-18T01:18:18Z","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":"85f449f19b0e9cc7240f65c888a53f87aebd871ac5b4e3f095115b12291cc330","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-20T21:36:50Z","title_canon_sha256":"6b2ba8b98d86a655f832e4486120c329d37fae43e0f8e9d953f3ccc1e49eab18"},"schema_version":"1.0","source":{"id":"1601.05444","kind":"arxiv","version":1}},"canonical_sha256":"823b1d0fff7ab6dcd6ac32a80b97c5b1bd7111b7bce6f842fc22f089ec42226b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"823b1d0fff7ab6dcd6ac32a80b97c5b1bd7111b7bce6f842fc22f089ec42226b","first_computed_at":"2026-05-18T01:18:18.087076Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:18.087076Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3+C2ccl/Tn7TaIbuphr2kYci/DWf4k6wqHNeoXNQ8xMXGSbr72YT3EGFvKbITZ7P4XQTvFd0N+S/L91QDvb0Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:18.087626Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.05444","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e7678c8d802dc0771479b5c01e52b21148c1c6afaf893471d05ad3059e3de759","sha256:9cbf8e579fe0795468005c3ff38bf5a151a30874f22ff05c0f1e12b5d37dbd9c"],"state_sha256":"45f7380bafc854cdb8ade4bcf7ef65564daf85c13221d0a8ce770ef0c49951fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RjEKlGibkR6IRHff0sPvEHQCqLyW0dl5C5iNLwvsger6WdxL412+IWOHX9/lOP70pUfPNDDZP6Rah+oTfuEqAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T07:04:48.473178Z","bundle_sha256":"56462ba56a93947ada0c6ab867d0da0a168b926b1a2cb8fbda2f4f33e588df4b"}}