{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:BZZ5427IBIRJYHD5CAR3WI3V23","short_pith_number":"pith:BZZ5427I","canonical_record":{"source":{"id":"0903.0967","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-03-05T11:50:41Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"ac2f58bd8dfa1e6d944b3ec422632a3ad01f61cab25486fd1282682fdf246b0c","abstract_canon_sha256":"65430571c65108d59078528e4f05cd13dc1854ce3934aa98eeeb91c29ae74f83"},"schema_version":"1.0"},"canonical_sha256":"0e73de6be80a229c1c7d1023bb2375d6f2e8d010a9bed21696bcb635525d0fb6","source":{"kind":"arxiv","id":"0903.0967","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.0967","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"arxiv_version","alias_value":"0903.0967v1","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.0967","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"pith_short_12","alias_value":"BZZ5427IBIRJ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BZZ5427IBIRJYHD5","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BZZ5427I","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:BZZ5427IBIRJYHD5CAR3WI3V23","target":"record","payload":{"canonical_record":{"source":{"id":"0903.0967","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-03-05T11:50:41Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"ac2f58bd8dfa1e6d944b3ec422632a3ad01f61cab25486fd1282682fdf246b0c","abstract_canon_sha256":"65430571c65108d59078528e4f05cd13dc1854ce3934aa98eeeb91c29ae74f83"},"schema_version":"1.0"},"canonical_sha256":"0e73de6be80a229c1c7d1023bb2375d6f2e8d010a9bed21696bcb635525d0fb6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:37.132308Z","signature_b64":"ER+wczqE0RXgN0KNsIHDYQCYNhGSSPuHikecDlDzdz/67durbTXzvHg0CpK+QDlntOOqWpaaZV+UOFZaMpP2Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e73de6be80a229c1c7d1023bb2375d6f2e8d010a9bed21696bcb635525d0fb6","last_reissued_at":"2026-05-18T02:14:37.131625Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:37.131625Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0903.0967","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":"2026-05-18T02:14:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bxr2Ma8NmojZ+1H/ulOj1KHTg1RXH7JPON5fHgoKMDTnJN04Cv4e18YHQOmS/c26oO+0pJewFGvxs4BJdudRAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:10:43.965263Z"},"content_sha256":"c798678eaa3806190c8cfb83931efb1400cec6c0ad5a29f5ebfcabe6b0735827","schema_version":"1.0","event_id":"sha256:c798678eaa3806190c8cfb83931efb1400cec6c0ad5a29f5ebfcabe6b0735827"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:BZZ5427IBIRJYHD5CAR3WI3V23","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electronic structure studies of BaFe2As2 by angle-resolved photoemission spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"C. Felser, D. Johrendt, H.A. Duerr, H.O. Jeschke, J. Fink, M. Rotter, M.S. Golden, R. Follath, R. Ovsyannikov, R. Valenti, S. Dastjani Farahani, S. de Jong, S. Thirupathaiah, Y. Huang, Yu-Zhong Zhang","submitted_at":"2009-03-05T11:50:41Z","abstract_excerpt":"We report high resolution angle-resolved photoemission spectroscopy (ARPES) studies of the electronic structure of BaFe$_2$As$_2$, which is one of the parent compounds of the Fe-pnictide superconductors. ARPES measurements have been performed at 20 K and 300 K, corresponding to the orthorhombic antiferromagnetic phase and the tetragonal paramagnetic phase, respectively. Photon energies between 30 and 175 eV and polarizations parallel and perpendicular to the scattering plane have been used. Measurements of the Fermi surface yield two hole pockets at the $\\Gamma$-point and an electron pocket at"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.0967","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":"2026-05-18T02:14:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9DrCy+/Rz6hhCp2LMO45fStkYt76lOLobgEzKFX2vYS3ZnBdQniNrPreUGHatbb2Nruz8j2ht/8JWZwQRV8cAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:10:43.965713Z"},"content_sha256":"babf089ebc344f65f5125c6135e7a1f703e4c07a71c4994d82f75bc830a6e03d","schema_version":"1.0","event_id":"sha256:babf089ebc344f65f5125c6135e7a1f703e4c07a71c4994d82f75bc830a6e03d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BZZ5427IBIRJYHD5CAR3WI3V23/bundle.json","state_url":"https://pith.science/pith/BZZ5427IBIRJYHD5CAR3WI3V23/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BZZ5427IBIRJYHD5CAR3WI3V23/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":"2026-06-10T13:10:43Z","links":{"resolver":"https://pith.science/pith/BZZ5427IBIRJYHD5CAR3WI3V23","bundle":"https://pith.science/pith/BZZ5427IBIRJYHD5CAR3WI3V23/bundle.json","state":"https://pith.science/pith/BZZ5427IBIRJYHD5CAR3WI3V23/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BZZ5427IBIRJYHD5CAR3WI3V23/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BZZ5427IBIRJYHD5CAR3WI3V23","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":"65430571c65108d59078528e4f05cd13dc1854ce3934aa98eeeb91c29ae74f83","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-03-05T11:50:41Z","title_canon_sha256":"ac2f58bd8dfa1e6d944b3ec422632a3ad01f61cab25486fd1282682fdf246b0c"},"schema_version":"1.0","source":{"id":"0903.0967","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.0967","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"arxiv_version","alias_value":"0903.0967v1","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.0967","created_at":"2026-05-18T02:14:37Z"},{"alias_kind":"pith_short_12","alias_value":"BZZ5427IBIRJ","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BZZ5427IBIRJYHD5","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BZZ5427I","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:babf089ebc344f65f5125c6135e7a1f703e4c07a71c4994d82f75bc830a6e03d","target":"graph","created_at":"2026-05-18T02:14:37Z","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 report high resolution angle-resolved photoemission spectroscopy (ARPES) studies of the electronic structure of BaFe$_2$As$_2$, which is one of the parent compounds of the Fe-pnictide superconductors. ARPES measurements have been performed at 20 K and 300 K, corresponding to the orthorhombic antiferromagnetic phase and the tetragonal paramagnetic phase, respectively. Photon energies between 30 and 175 eV and polarizations parallel and perpendicular to the scattering plane have been used. Measurements of the Fermi surface yield two hole pockets at the $\\Gamma$-point and an electron pocket at","authors_text":"C. Felser, D. Johrendt, H.A. Duerr, H.O. Jeschke, J. Fink, M. Rotter, M.S. Golden, R. Follath, R. Ovsyannikov, R. Valenti, S. Dastjani Farahani, S. de Jong, S. Thirupathaiah, Y. Huang, Yu-Zhong Zhang","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-03-05T11:50:41Z","title":"Electronic structure studies of BaFe2As2 by angle-resolved photoemission spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.0967","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:c798678eaa3806190c8cfb83931efb1400cec6c0ad5a29f5ebfcabe6b0735827","target":"record","created_at":"2026-05-18T02:14:37Z","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":"65430571c65108d59078528e4f05cd13dc1854ce3934aa98eeeb91c29ae74f83","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-03-05T11:50:41Z","title_canon_sha256":"ac2f58bd8dfa1e6d944b3ec422632a3ad01f61cab25486fd1282682fdf246b0c"},"schema_version":"1.0","source":{"id":"0903.0967","kind":"arxiv","version":1}},"canonical_sha256":"0e73de6be80a229c1c7d1023bb2375d6f2e8d010a9bed21696bcb635525d0fb6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e73de6be80a229c1c7d1023bb2375d6f2e8d010a9bed21696bcb635525d0fb6","first_computed_at":"2026-05-18T02:14:37.131625Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:37.131625Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ER+wczqE0RXgN0KNsIHDYQCYNhGSSPuHikecDlDzdz/67durbTXzvHg0CpK+QDlntOOqWpaaZV+UOFZaMpP2Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:37.132308Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.0967","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c798678eaa3806190c8cfb83931efb1400cec6c0ad5a29f5ebfcabe6b0735827","sha256:babf089ebc344f65f5125c6135e7a1f703e4c07a71c4994d82f75bc830a6e03d"],"state_sha256":"18e4893ad14612d125ffbd9daf35714a7a830bead61e1000055870b6d3af8d61"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zn/ldlEmczhpBoXgcOEzkmyaqz2XiBduFGGLleC3zmzy0H5PuNceua8sMc1z80VgMUi+qw6WUSERlZcKBPo8Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T13:10:43.968724Z","bundle_sha256":"e2bc6b7c6f46f99e3cfe29526896a9e0fbe2fde54e68df5a87363f7b64da2fd8"}}