{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:TCJAEWHR2YTTCIE2KDEVCYSNTF","short_pith_number":"pith:TCJAEWHR","canonical_record":{"source":{"id":"0704.2061","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-04-16T19:34:15Z","cross_cats_sorted":[],"title_canon_sha256":"70b59843ef9162570abd78890fd112686dfca0113558763170d474ed0e509138","abstract_canon_sha256":"04e03345b146553c5fe7d7130937b888db873dce31be5e85549172295161b0a6"},"schema_version":"1.0"},"canonical_sha256":"98920258f1d62731209a50c951624d9955ac67c4296f87bda0be2906c3682692","source":{"kind":"arxiv","id":"0704.2061","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0704.2061","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"arxiv_version","alias_value":"0704.2061v1","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.2061","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"pith_short_12","alias_value":"TCJAEWHR2YTT","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"pith_short_16","alias_value":"TCJAEWHR2YTTCIE2","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"pith_short_8","alias_value":"TCJAEWHR","created_at":"2026-07-04T15:00:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:TCJAEWHR2YTTCIE2KDEVCYSNTF","target":"record","payload":{"canonical_record":{"source":{"id":"0704.2061","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-04-16T19:34:15Z","cross_cats_sorted":[],"title_canon_sha256":"70b59843ef9162570abd78890fd112686dfca0113558763170d474ed0e509138","abstract_canon_sha256":"04e03345b146553c5fe7d7130937b888db873dce31be5e85549172295161b0a6"},"schema_version":"1.0"},"canonical_sha256":"98920258f1d62731209a50c951624d9955ac67c4296f87bda0be2906c3682692","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:00:54.204453Z","signature_b64":"ws0K/0hadmDip3ynBD9Cwz2x+VvikGcrM3EW1wDGSYeJfCsC7JMeC65GNucM85lOVJIq2SnZpbEoIGndw+/xBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98920258f1d62731209a50c951624d9955ac67c4296f87bda0be2906c3682692","last_reissued_at":"2026-07-04T15:00:54.204031Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:00:54.204031Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0704.2061","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":"2026-07-04T15:00:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kCfE7WUhwFun88HFiEg+CmO6ehpTtB+u+pQ5yK4YOgJ6hNqXHsvLHrU8GI0/oUo62/2hz0VxKToDVUvdfdpZDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T09:50:15.802413Z"},"content_sha256":"b0860550837a24feac168dcdb9ee01ae4aa4917da3f3d6b1f811bb5e78374cb9","schema_version":"1.0","event_id":"sha256:b0860550837a24feac168dcdb9ee01ae4aa4917da3f3d6b1f811bb5e78374cb9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:TCJAEWHR2YTTCIE2KDEVCYSNTF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Memory function formalism approach to electrical conductivity and optical response of dilute magnetic semiconductors","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"C.A. Ullrich, F.V. Kyrychenko","submitted_at":"2007-04-16T19:34:15Z","abstract_excerpt":"A combination of the memory function formalism and time-dependent density-functional theory is applied to transport in dilute magnetic semiconductors. The approach considers spin and charge disorder and electron-electron interaction on an equal footing. Within the weak disorder limit and using a simple parabolic approximation for the valence band we show that Coulomb and exchange scattering contributions to the resistivity in GaMnAs are of the same order of magnitude. The positional correlations of defects result in a significant increase of Coulomb scattering, while the suppression of localiz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.2061","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0704.2061/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:00:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u5glrw49KNkfRDWSp/mvWD0s3WmxGGz0YN0hhemCI6o4VA7pvfT/VKq0xptdDVyx21Q2jSxailcXcOxzUu0dDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T09:50:15.802783Z"},"content_sha256":"5aa8537e03194bddf9d7e2ceed318090d92b59cddac09b735857c1d605a94f87","schema_version":"1.0","event_id":"sha256:5aa8537e03194bddf9d7e2ceed318090d92b59cddac09b735857c1d605a94f87"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TCJAEWHR2YTTCIE2KDEVCYSNTF/bundle.json","state_url":"https://pith.science/pith/TCJAEWHR2YTTCIE2KDEVCYSNTF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TCJAEWHR2YTTCIE2KDEVCYSNTF/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":"2026-07-05T09:50:15Z","links":{"resolver":"https://pith.science/pith/TCJAEWHR2YTTCIE2KDEVCYSNTF","bundle":"https://pith.science/pith/TCJAEWHR2YTTCIE2KDEVCYSNTF/bundle.json","state":"https://pith.science/pith/TCJAEWHR2YTTCIE2KDEVCYSNTF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TCJAEWHR2YTTCIE2KDEVCYSNTF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:TCJAEWHR2YTTCIE2KDEVCYSNTF","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":"04e03345b146553c5fe7d7130937b888db873dce31be5e85549172295161b0a6","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-04-16T19:34:15Z","title_canon_sha256":"70b59843ef9162570abd78890fd112686dfca0113558763170d474ed0e509138"},"schema_version":"1.0","source":{"id":"0704.2061","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0704.2061","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"arxiv_version","alias_value":"0704.2061v1","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.2061","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"pith_short_12","alias_value":"TCJAEWHR2YTT","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"pith_short_16","alias_value":"TCJAEWHR2YTTCIE2","created_at":"2026-07-04T15:00:54Z"},{"alias_kind":"pith_short_8","alias_value":"TCJAEWHR","created_at":"2026-07-04T15:00:54Z"}],"graph_snapshots":[{"event_id":"sha256:5aa8537e03194bddf9d7e2ceed318090d92b59cddac09b735857c1d605a94f87","target":"graph","created_at":"2026-07-04T15:00:54Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0704.2061/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A combination of the memory function formalism and time-dependent density-functional theory is applied to transport in dilute magnetic semiconductors. The approach considers spin and charge disorder and electron-electron interaction on an equal footing. Within the weak disorder limit and using a simple parabolic approximation for the valence band we show that Coulomb and exchange scattering contributions to the resistivity in GaMnAs are of the same order of magnitude. The positional correlations of defects result in a significant increase of Coulomb scattering, while the suppression of localiz","authors_text":"C.A. Ullrich, F.V. Kyrychenko","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-04-16T19:34:15Z","title":"Memory function formalism approach to electrical conductivity and optical response of dilute magnetic semiconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.2061","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:b0860550837a24feac168dcdb9ee01ae4aa4917da3f3d6b1f811bb5e78374cb9","target":"record","created_at":"2026-07-04T15:00:54Z","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":"04e03345b146553c5fe7d7130937b888db873dce31be5e85549172295161b0a6","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2007-04-16T19:34:15Z","title_canon_sha256":"70b59843ef9162570abd78890fd112686dfca0113558763170d474ed0e509138"},"schema_version":"1.0","source":{"id":"0704.2061","kind":"arxiv","version":1}},"canonical_sha256":"98920258f1d62731209a50c951624d9955ac67c4296f87bda0be2906c3682692","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98920258f1d62731209a50c951624d9955ac67c4296f87bda0be2906c3682692","first_computed_at":"2026-07-04T15:00:54.204031Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:00:54.204031Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ws0K/0hadmDip3ynBD9Cwz2x+VvikGcrM3EW1wDGSYeJfCsC7JMeC65GNucM85lOVJIq2SnZpbEoIGndw+/xBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:00:54.204453Z","signed_message":"canonical_sha256_bytes"},"source_id":"0704.2061","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0860550837a24feac168dcdb9ee01ae4aa4917da3f3d6b1f811bb5e78374cb9","sha256:5aa8537e03194bddf9d7e2ceed318090d92b59cddac09b735857c1d605a94f87"],"state_sha256":"e0e85014897801ff6240c793fbc37e411934ca20677bc124f63ef238df549e46"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rMf97I6FdqnXT7mGyJtQ3//DCR6fW7ePubJTxR5MBOvqsjbgzI7JZlZ+1dOxZ/6dY3dXZyaUwKI32loYl0NVCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T09:50:15.804663Z","bundle_sha256":"c297ef6fda0805b87ad2e01deecef7d5918b0239049f66b46acc3efeebcb24bf"}}