{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:U6YUD5MH34VNTDW4R5JT4WHLYL","short_pith_number":"pith:U6YUD5MH","canonical_record":{"source":{"id":"1205.1829","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-05-08T21:16:55Z","cross_cats_sorted":[],"title_canon_sha256":"46baf09513e24e520131a56a0c41649dab5590d477077e9738609c8b566cb0c8","abstract_canon_sha256":"df5da257431ef983c83b8e27031d3c4cf1a685cdf95bb3e7469affa9a646eaa2"},"schema_version":"1.0"},"canonical_sha256":"a7b141f587df2ad98edc8f533e58ebc2f8006388f677e82c26de14c3642a8b29","source":{"kind":"arxiv","id":"1205.1829","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.1829","created_at":"2026-05-18T03:30:42Z"},{"alias_kind":"arxiv_version","alias_value":"1205.1829v1","created_at":"2026-05-18T03:30:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.1829","created_at":"2026-05-18T03:30:42Z"},{"alias_kind":"pith_short_12","alias_value":"U6YUD5MH34VN","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"U6YUD5MH34VNTDW4","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"U6YUD5MH","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:U6YUD5MH34VNTDW4R5JT4WHLYL","target":"record","payload":{"canonical_record":{"source":{"id":"1205.1829","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-05-08T21:16:55Z","cross_cats_sorted":[],"title_canon_sha256":"46baf09513e24e520131a56a0c41649dab5590d477077e9738609c8b566cb0c8","abstract_canon_sha256":"df5da257431ef983c83b8e27031d3c4cf1a685cdf95bb3e7469affa9a646eaa2"},"schema_version":"1.0"},"canonical_sha256":"a7b141f587df2ad98edc8f533e58ebc2f8006388f677e82c26de14c3642a8b29","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:30:42.128657Z","signature_b64":"m3tdFkORH+INxjI8Pdb2ksUKNkxjtXsTbKuKUBN1YAhQ5H9nbEK2jGkDC7N78Nz9qp1+rDWEZIPkH11XHFYzDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7b141f587df2ad98edc8f533e58ebc2f8006388f677e82c26de14c3642a8b29","last_reissued_at":"2026-05-18T03:30:42.127705Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:30:42.127705Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1205.1829","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":"2026-05-18T03:30:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8vqmvw8tMKpaehQeJ1KNfL9DwASJ9nRtAQPz6pPznpNtrvJtN6Zcr/ipUOIvsm28aeWENCvm344RZGzd8hXaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:34:25.291413Z"},"content_sha256":"aa711a97dfabc146b7bbd11d3389797fa913e0475c50565632710d7093bc8361","schema_version":"1.0","event_id":"sha256:aa711a97dfabc146b7bbd11d3389797fa913e0475c50565632710d7093bc8361"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:U6YUD5MH34VNTDW4R5JT4WHLYL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Intrinsic Spin Lifetime of Conduction Electrons in Germanium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hanan Dery, Pengke Li, Yang Song","submitted_at":"2012-05-08T21:16:55Z","abstract_excerpt":"We investigate the intrinsic spin relaxation of conduction electrons in germanium due to electron-phonon scattering. We derive intravalley and intervalley spin-flip matrix elements for a general spin orientation and quantify the resulting anisotropy in spin relaxation. The form of the intravalley spin-flip matrix element is derived from the eigenstates of a compact spin-dependent $\\mathbf{k}$$\\cdot$$\\mathbf{p}$ Hamiltonian in the vicinity of the $L$ point (where thermal electrons are populated in Ge). Spin lifetimes from analytical integrations of the intravalley and intervalley matrix element"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.1829","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":"2026-05-18T03:30:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O0hd/NnViLFaSB9B9lFEFfRr8OijBIx8aPXJEhQ09+nyEZpnJyHaeT/dAoq0asQfTHs+lJRq3a8uZoiaPp/3Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:34:25.291818Z"},"content_sha256":"17ce5718060c500fe50895009077a3b447a92e69ff8bec44856e5e33883e3b39","schema_version":"1.0","event_id":"sha256:17ce5718060c500fe50895009077a3b447a92e69ff8bec44856e5e33883e3b39"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U6YUD5MH34VNTDW4R5JT4WHLYL/bundle.json","state_url":"https://pith.science/pith/U6YUD5MH34VNTDW4R5JT4WHLYL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U6YUD5MH34VNTDW4R5JT4WHLYL/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":"2026-06-04T20:34:25Z","links":{"resolver":"https://pith.science/pith/U6YUD5MH34VNTDW4R5JT4WHLYL","bundle":"https://pith.science/pith/U6YUD5MH34VNTDW4R5JT4WHLYL/bundle.json","state":"https://pith.science/pith/U6YUD5MH34VNTDW4R5JT4WHLYL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U6YUD5MH34VNTDW4R5JT4WHLYL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:U6YUD5MH34VNTDW4R5JT4WHLYL","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":"df5da257431ef983c83b8e27031d3c4cf1a685cdf95bb3e7469affa9a646eaa2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-05-08T21:16:55Z","title_canon_sha256":"46baf09513e24e520131a56a0c41649dab5590d477077e9738609c8b566cb0c8"},"schema_version":"1.0","source":{"id":"1205.1829","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.1829","created_at":"2026-05-18T03:30:42Z"},{"alias_kind":"arxiv_version","alias_value":"1205.1829v1","created_at":"2026-05-18T03:30:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.1829","created_at":"2026-05-18T03:30:42Z"},{"alias_kind":"pith_short_12","alias_value":"U6YUD5MH34VN","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"U6YUD5MH34VNTDW4","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"U6YUD5MH","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:17ce5718060c500fe50895009077a3b447a92e69ff8bec44856e5e33883e3b39","target":"graph","created_at":"2026-05-18T03:30:42Z","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 investigate the intrinsic spin relaxation of conduction electrons in germanium due to electron-phonon scattering. We derive intravalley and intervalley spin-flip matrix elements for a general spin orientation and quantify the resulting anisotropy in spin relaxation. The form of the intravalley spin-flip matrix element is derived from the eigenstates of a compact spin-dependent $\\mathbf{k}$$\\cdot$$\\mathbf{p}$ Hamiltonian in the vicinity of the $L$ point (where thermal electrons are populated in Ge). Spin lifetimes from analytical integrations of the intravalley and intervalley matrix element","authors_text":"Hanan Dery, Pengke Li, Yang Song","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-05-08T21:16:55Z","title":"Intrinsic Spin Lifetime of Conduction Electrons in Germanium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.1829","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:aa711a97dfabc146b7bbd11d3389797fa913e0475c50565632710d7093bc8361","target":"record","created_at":"2026-05-18T03:30:42Z","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":"df5da257431ef983c83b8e27031d3c4cf1a685cdf95bb3e7469affa9a646eaa2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-05-08T21:16:55Z","title_canon_sha256":"46baf09513e24e520131a56a0c41649dab5590d477077e9738609c8b566cb0c8"},"schema_version":"1.0","source":{"id":"1205.1829","kind":"arxiv","version":1}},"canonical_sha256":"a7b141f587df2ad98edc8f533e58ebc2f8006388f677e82c26de14c3642a8b29","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7b141f587df2ad98edc8f533e58ebc2f8006388f677e82c26de14c3642a8b29","first_computed_at":"2026-05-18T03:30:42.127705Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:30:42.127705Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m3tdFkORH+INxjI8Pdb2ksUKNkxjtXsTbKuKUBN1YAhQ5H9nbEK2jGkDC7N78Nz9qp1+rDWEZIPkH11XHFYzDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:30:42.128657Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.1829","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa711a97dfabc146b7bbd11d3389797fa913e0475c50565632710d7093bc8361","sha256:17ce5718060c500fe50895009077a3b447a92e69ff8bec44856e5e33883e3b39"],"state_sha256":"b7f85bfcf9b0fa69f3a3770553dd8190428e2f48c420e85f60b54f59cd984631"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JE/y+YmjYWLDScjEkCi5u2LoIEmnB05VMPaqUu6pCV3LGiR8m9Kn82CUR+bnoPFsJFRk4+XLZZAMZlbcLSs3CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T20:34:25.294079Z","bundle_sha256":"28ae67e794881a66c582e906f5af65771aadea6ef68acd7ddefac6bfd74ea402"}}