{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:LJXY357CUMD5HXSP6AJQE7YSQ2","short_pith_number":"pith:LJXY357C","canonical_record":{"source":{"id":"1407.5543","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-21T16:10:59Z","cross_cats_sorted":[],"title_canon_sha256":"ccfb3481a8ee5f45462a4e303ca810b5124198cc5331eabe6b4d7ed8a53c5cfc","abstract_canon_sha256":"6fcf960aea1ca4499ade583e97fd24a3a12ec87afa5c3c0581e81a7da967a4ca"},"schema_version":"1.0"},"canonical_sha256":"5a6f8df7e2a307d3de4ff013027f1286bfe0964f6479b3300430e7d5b308ebfa","source":{"kind":"arxiv","id":"1407.5543","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5543","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5543v1","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5543","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"LJXY357CUMD5","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"LJXY357CUMD5HXSP","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"LJXY357C","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:LJXY357CUMD5HXSP6AJQE7YSQ2","target":"record","payload":{"canonical_record":{"source":{"id":"1407.5543","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-21T16:10:59Z","cross_cats_sorted":[],"title_canon_sha256":"ccfb3481a8ee5f45462a4e303ca810b5124198cc5331eabe6b4d7ed8a53c5cfc","abstract_canon_sha256":"6fcf960aea1ca4499ade583e97fd24a3a12ec87afa5c3c0581e81a7da967a4ca"},"schema_version":"1.0"},"canonical_sha256":"5a6f8df7e2a307d3de4ff013027f1286bfe0964f6479b3300430e7d5b308ebfa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:13.820248Z","signature_b64":"tqIxw30e3f19KqibValrtVNW5YQ0KAjo7gBYqSjv8EN+AWnM/TA8ulpk6yMs7G3+wV5s0bec83rXSlJNsqbGDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a6f8df7e2a307d3de4ff013027f1286bfe0964f6479b3300430e7d5b308ebfa","last_reissued_at":"2026-05-18T02:47:13.819650Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:13.819650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.5543","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":"2026-05-18T02:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZruHeaat86d9nfAFhFOiSFbLdO8sgp8ypqOkhJiGEYvDC8yAZJZxxjRL7VmrDPvpJT58Ngws2OMLVLPnM25DBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:36:02.429396Z"},"content_sha256":"5d7820713cd437e4d2bd6af12866e52ef222e8b3ec619f2a91db6fd2083ccdb8","schema_version":"1.0","event_id":"sha256:5d7820713cd437e4d2bd6af12866e52ef222e8b3ec619f2a91db6fd2083ccdb8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:LJXY357CUMD5HXSP6AJQE7YSQ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin pumping efficiency in room-temperature CdSe nanocrystal quantum dots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Khastehdel Fumani, J. Berezovsky","submitted_at":"2014-07-21T16:10:59Z","abstract_excerpt":"To understand and optimize optical spin initialization in room temperature CdSe nanocrystal quantum dots (NCQDs) we studied the dependence of the time-resolved Faraday rotation signal on pump energy $E_p$ in a series of NCQD samples with different sizes. In larger NCQDs, we observe two peaks in the spin signal vs. $E_p$, whereas in smaller NQCDs, only a single peak is observed before the signal falls to a low, broad plateau at higher energies. We calculate the spin-dependent oscillator strengths of optical transitions using a simple effective mass model to understand these results. The observe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5543","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":"2026-05-18T02:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NdL6894C9Q3TPeEQhLiyLdG/H9bMijwTTGoWngnj0gp/xqNOJTCEPI7IPIeHXnaBxMQCUoWuF9SGOWW64BapAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:36:02.429732Z"},"content_sha256":"fca926dfeb49e27844e740505219155002ab3cab8fe8ef2ab0c85781ba18079a","schema_version":"1.0","event_id":"sha256:fca926dfeb49e27844e740505219155002ab3cab8fe8ef2ab0c85781ba18079a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LJXY357CUMD5HXSP6AJQE7YSQ2/bundle.json","state_url":"https://pith.science/pith/LJXY357CUMD5HXSP6AJQE7YSQ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LJXY357CUMD5HXSP6AJQE7YSQ2/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":"2026-05-28T11:36:02Z","links":{"resolver":"https://pith.science/pith/LJXY357CUMD5HXSP6AJQE7YSQ2","bundle":"https://pith.science/pith/LJXY357CUMD5HXSP6AJQE7YSQ2/bundle.json","state":"https://pith.science/pith/LJXY357CUMD5HXSP6AJQE7YSQ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LJXY357CUMD5HXSP6AJQE7YSQ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:LJXY357CUMD5HXSP6AJQE7YSQ2","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":"6fcf960aea1ca4499ade583e97fd24a3a12ec87afa5c3c0581e81a7da967a4ca","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-21T16:10:59Z","title_canon_sha256":"ccfb3481a8ee5f45462a4e303ca810b5124198cc5331eabe6b4d7ed8a53c5cfc"},"schema_version":"1.0","source":{"id":"1407.5543","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5543","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5543v1","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5543","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"LJXY357CUMD5","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"LJXY357CUMD5HXSP","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"LJXY357C","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:fca926dfeb49e27844e740505219155002ab3cab8fe8ef2ab0c85781ba18079a","target":"graph","created_at":"2026-05-18T02:47:13Z","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":"To understand and optimize optical spin initialization in room temperature CdSe nanocrystal quantum dots (NCQDs) we studied the dependence of the time-resolved Faraday rotation signal on pump energy $E_p$ in a series of NCQD samples with different sizes. In larger NCQDs, we observe two peaks in the spin signal vs. $E_p$, whereas in smaller NQCDs, only a single peak is observed before the signal falls to a low, broad plateau at higher energies. We calculate the spin-dependent oscillator strengths of optical transitions using a simple effective mass model to understand these results. The observe","authors_text":"A. Khastehdel Fumani, J. Berezovsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-21T16:10:59Z","title":"Spin pumping efficiency in room-temperature CdSe nanocrystal quantum dots"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5543","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":"sha256:5d7820713cd437e4d2bd6af12866e52ef222e8b3ec619f2a91db6fd2083ccdb8","target":"record","created_at":"2026-05-18T02:47:13Z","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":"6fcf960aea1ca4499ade583e97fd24a3a12ec87afa5c3c0581e81a7da967a4ca","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-21T16:10:59Z","title_canon_sha256":"ccfb3481a8ee5f45462a4e303ca810b5124198cc5331eabe6b4d7ed8a53c5cfc"},"schema_version":"1.0","source":{"id":"1407.5543","kind":"arxiv","version":1}},"canonical_sha256":"5a6f8df7e2a307d3de4ff013027f1286bfe0964f6479b3300430e7d5b308ebfa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a6f8df7e2a307d3de4ff013027f1286bfe0964f6479b3300430e7d5b308ebfa","first_computed_at":"2026-05-18T02:47:13.819650Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:13.819650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tqIxw30e3f19KqibValrtVNW5YQ0KAjo7gBYqSjv8EN+AWnM/TA8ulpk6yMs7G3+wV5s0bec83rXSlJNsqbGDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:13.820248Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.5543","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d7820713cd437e4d2bd6af12866e52ef222e8b3ec619f2a91db6fd2083ccdb8","sha256:fca926dfeb49e27844e740505219155002ab3cab8fe8ef2ab0c85781ba18079a"],"state_sha256":"3cab5951d814d6b09d9d4df373b882f7439cb0ada8b6eaef37068373e90b88eb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KRKK26GmxWKEoYn69lzYnh2QzJMAQWW8BDURBrA4/YUbdhdaATKLWKKugylfExxAPH5iKJcHmH7NZixoou0ABQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:36:02.431628Z","bundle_sha256":"844467f73f02da9a915a99b08558cecb321556f8c4fe27550d41551a1f3792ae"}}