{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:QAA3ZBFCLFXKIV6TILDWK5ILP4","short_pith_number":"pith:QAA3ZBFC","canonical_record":{"source":{"id":"cond-mat/0612698","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2006-12-29T15:34:30Z","cross_cats_sorted":[],"title_canon_sha256":"9cc59e8e39bd60685f4ef4664aa3e7b215361c2a0d403b05ca8d633fd8f23d5b","abstract_canon_sha256":"c961c55e6a43d75d474f3c16d589d7527973621e30895d17d8dd5cb87e845eb8"},"schema_version":"1.0"},"canonical_sha256":"8001bc84a2596ea457d342c765750b7f0f443e5e21f8657c04f43318e65e5023","source":{"kind":"arxiv","id":"cond-mat/0612698","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0612698","created_at":"2026-05-18T03:19:01Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0612698v1","created_at":"2026-05-18T03:19:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0612698","created_at":"2026-05-18T03:19:01Z"},{"alias_kind":"pith_short_12","alias_value":"QAA3ZBFCLFXK","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"QAA3ZBFCLFXKIV6T","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"QAA3ZBFC","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:QAA3ZBFCLFXKIV6TILDWK5ILP4","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0612698","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2006-12-29T15:34:30Z","cross_cats_sorted":[],"title_canon_sha256":"9cc59e8e39bd60685f4ef4664aa3e7b215361c2a0d403b05ca8d633fd8f23d5b","abstract_canon_sha256":"c961c55e6a43d75d474f3c16d589d7527973621e30895d17d8dd5cb87e845eb8"},"schema_version":"1.0"},"canonical_sha256":"8001bc84a2596ea457d342c765750b7f0f443e5e21f8657c04f43318e65e5023","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:01.996294Z","signature_b64":"+g7UMgiK239nxcmVPL0MOOyvnWHH8IGjPZglMbArNRFvRuTtBhERlfDNT+sCIKA4rWHI08eAChPahrARF+eAAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8001bc84a2596ea457d342c765750b7f0f443e5e21f8657c04f43318e65e5023","last_reissued_at":"2026-05-18T03:19:01.995827Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:01.995827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0612698","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":"2026-05-18T03:19:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sc10TuBNQpHyl/LjetAZfIgI4ESYe2ZtXLKqCQaFk6t7zFen6t0J0eLE+MnW041Lm6jGHjX2Sc/6vAsyq/Q9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:49:49.487268Z"},"content_sha256":"279b1626322211346be19b37c84de303b3ea6b458c0e7b9bb5134ba6531594f2","schema_version":"1.0","event_id":"sha256:279b1626322211346be19b37c84de303b3ea6b458c0e7b9bb5134ba6531594f2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:QAA3ZBFCLFXKIV6TILDWK5ILP4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of valley polarization in graphene by a superconducting contact","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. R. Akhmerov, C. W. J. Beenakker","submitted_at":"2006-12-29T15:34:30Z","abstract_excerpt":"Because the valleys in the band structure of graphene are related by time-reversal symmetry, electrons from one valley are reflected as holes from the other valley at the junction with a superconductor. We show how this Andreev reflection can be used to detect the valley polarization of edge states produced by a magnetic field. In the absence of intervalley relaxation, the conductance G_NS=2(e^2/h)(1-cos(Theta)) of the junction on the lowest quantum Hall plateau is entirely determined by the angle Theta between the valley isospins of the edge states approaching and leaving the superconductor. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0612698","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":"2026-05-18T03:19:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HeOFAHo8khZJF+y5vMrVeo3DGoYGYcPiPLCGf6dt9I30uXHVahQtMkTZsz10UnQ4CjICHh7XV+yZXOduHHKnCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:49:49.487640Z"},"content_sha256":"77b08dd5b76b5cba7455fa9207c4ac6d1071961acb7d97920d19e9e5d02ab4db","schema_version":"1.0","event_id":"sha256:77b08dd5b76b5cba7455fa9207c4ac6d1071961acb7d97920d19e9e5d02ab4db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QAA3ZBFCLFXKIV6TILDWK5ILP4/bundle.json","state_url":"https://pith.science/pith/QAA3ZBFCLFXKIV6TILDWK5ILP4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QAA3ZBFCLFXKIV6TILDWK5ILP4/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":"2026-06-05T12:49:49Z","links":{"resolver":"https://pith.science/pith/QAA3ZBFCLFXKIV6TILDWK5ILP4","bundle":"https://pith.science/pith/QAA3ZBFCLFXKIV6TILDWK5ILP4/bundle.json","state":"https://pith.science/pith/QAA3ZBFCLFXKIV6TILDWK5ILP4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QAA3ZBFCLFXKIV6TILDWK5ILP4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:QAA3ZBFCLFXKIV6TILDWK5ILP4","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":"c961c55e6a43d75d474f3c16d589d7527973621e30895d17d8dd5cb87e845eb8","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2006-12-29T15:34:30Z","title_canon_sha256":"9cc59e8e39bd60685f4ef4664aa3e7b215361c2a0d403b05ca8d633fd8f23d5b"},"schema_version":"1.0","source":{"id":"cond-mat/0612698","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0612698","created_at":"2026-05-18T03:19:01Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0612698v1","created_at":"2026-05-18T03:19:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0612698","created_at":"2026-05-18T03:19:01Z"},{"alias_kind":"pith_short_12","alias_value":"QAA3ZBFCLFXK","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"QAA3ZBFCLFXKIV6T","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"QAA3ZBFC","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:77b08dd5b76b5cba7455fa9207c4ac6d1071961acb7d97920d19e9e5d02ab4db","target":"graph","created_at":"2026-05-18T03:19:01Z","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":"Because the valleys in the band structure of graphene are related by time-reversal symmetry, electrons from one valley are reflected as holes from the other valley at the junction with a superconductor. We show how this Andreev reflection can be used to detect the valley polarization of edge states produced by a magnetic field. In the absence of intervalley relaxation, the conductance G_NS=2(e^2/h)(1-cos(Theta)) of the junction on the lowest quantum Hall plateau is entirely determined by the angle Theta between the valley isospins of the edge states approaching and leaving the superconductor. ","authors_text":"A. R. Akhmerov, C. W. J. Beenakker","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2006-12-29T15:34:30Z","title":"Detection of valley polarization in graphene by a superconducting contact"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0612698","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":"sha256:279b1626322211346be19b37c84de303b3ea6b458c0e7b9bb5134ba6531594f2","target":"record","created_at":"2026-05-18T03:19:01Z","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":"c961c55e6a43d75d474f3c16d589d7527973621e30895d17d8dd5cb87e845eb8","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2006-12-29T15:34:30Z","title_canon_sha256":"9cc59e8e39bd60685f4ef4664aa3e7b215361c2a0d403b05ca8d633fd8f23d5b"},"schema_version":"1.0","source":{"id":"cond-mat/0612698","kind":"arxiv","version":1}},"canonical_sha256":"8001bc84a2596ea457d342c765750b7f0f443e5e21f8657c04f43318e65e5023","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8001bc84a2596ea457d342c765750b7f0f443e5e21f8657c04f43318e65e5023","first_computed_at":"2026-05-18T03:19:01.995827Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:19:01.995827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+g7UMgiK239nxcmVPL0MOOyvnWHH8IGjPZglMbArNRFvRuTtBhERlfDNT+sCIKA4rWHI08eAChPahrARF+eAAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:19:01.996294Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0612698","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:279b1626322211346be19b37c84de303b3ea6b458c0e7b9bb5134ba6531594f2","sha256:77b08dd5b76b5cba7455fa9207c4ac6d1071961acb7d97920d19e9e5d02ab4db"],"state_sha256":"f0e46e910ca99bfc3890f8a6c547e624904f96ebeb3e470f496c295016603acc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kXkTwbH4zCSU4qWYhnlCXDJDgrtctS974h1Bs2V7y5KpH8CSgDWrb3cus2KOZO0mcZiG/oJ07jdzqQCv6LJ2Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T12:49:49.489572Z","bundle_sha256":"db25d760144b90e2cbba245d9961c9a193892d915606d433c4a80ea518422c66"}}