{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:CRUCO2ETRJB5QZNTEQKXVRA33R","short_pith_number":"pith:CRUCO2ET","canonical_record":{"source":{"id":"0905.0271","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-05-04T14:55:55Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"54db429221db4f27c1037d278d80f600aea11a0baaab2276759211256bb1a3f1","abstract_canon_sha256":"dcbfff671c55c522c0cf34d5159b513ea94f937e62d58e45e9e28ab653aea638"},"schema_version":"1.0"},"canonical_sha256":"14682768938a43d865b324157ac41bdc457558938a3b9bb180aa99178c85b233","source":{"kind":"arxiv","id":"0905.0271","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.0271","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"arxiv_version","alias_value":"0905.0271v1","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.0271","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"pith_short_12","alias_value":"CRUCO2ETRJB5","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"pith_short_16","alias_value":"CRUCO2ETRJB5QZNT","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"pith_short_8","alias_value":"CRUCO2ET","created_at":"2026-07-04T17:22:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:CRUCO2ETRJB5QZNTEQKXVRA33R","target":"record","payload":{"canonical_record":{"source":{"id":"0905.0271","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-05-04T14:55:55Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"54db429221db4f27c1037d278d80f600aea11a0baaab2276759211256bb1a3f1","abstract_canon_sha256":"dcbfff671c55c522c0cf34d5159b513ea94f937e62d58e45e9e28ab653aea638"},"schema_version":"1.0"},"canonical_sha256":"14682768938a43d865b324157ac41bdc457558938a3b9bb180aa99178c85b233","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:22:07.220007Z","signature_b64":"ow6fgo7evydDOgRDLYMh93gJZqGvd0OqEMLDcUfD2jauAG49GifuPR+2vrRjgeNUl0eR/uUDvTJnRWGbZpVYAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14682768938a43d865b324157ac41bdc457558938a3b9bb180aa99178c85b233","last_reissued_at":"2026-07-04T17:22:07.219574Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:22:07.219574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0905.0271","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":"2026-07-04T17:22:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2CR1pZjjoJZEMooeqhP1Bh7l/OI9lIZfvh7hLrL8idoLqVSx4Ot5zBZSlgtDiWAvaiLjFCrG8lNdFJk/HhHwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T12:38:31.140533Z"},"content_sha256":"0d069a085d128de860ba065df5719a06675a221337dda4b26e6ec75ec9d40987","schema_version":"1.0","event_id":"sha256:0d069a085d128de860ba065df5719a06675a221337dda4b26e6ec75ec9d40987"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:CRUCO2ETRJB5QZNTEQKXVRA33R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unusual Fermi surface nesting in parent compounds of iron arsenic high temperature superconductors revealed 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":"A. Bostwick, A. D. Palczewski, A. Kaminski, Chang Liu, E. Rotenberg, J. Schmalian, M. Shi, Ni Ni, P. C. Canfield, R. Khasanov, R. M. Fernandes, S. L. Bud'ko, Takeshi Kondo","submitted_at":"2009-05-04T14:55:55Z","abstract_excerpt":"We use angle resolved photoemission spectroscopy (ARPES) to study the band structure of BaFe2As2 and CaFe2As2, two of the parent compounds of the iron arsenic high temperature superconductors. We find clear evidence for band back folding and hybridization demonstrating that conduction electrons are strongly affected by the emergence of magnetic order. Our high quality data revealed that although the Fermi surface is strongly three-dimensional, it does indeed have long parallel segments along the kz direction that can lead to the emergence of magnetic order. More interestingly, we find very unu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.0271","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/0905.0271/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":"2026-07-04T17:22:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UxJqGG2dMByWqwbviFgykjK+FVmARkobknFJ4Zb5x1/WjPiwvNVp+hTMwRgczuuj1lLOLUGrx9cS3cKY/RAqAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T12:38:31.141436Z"},"content_sha256":"95f8998b9c75ef6bcdecf8e8b4e38f1ae05825f24603889aae4edb9c0cf0c135","schema_version":"1.0","event_id":"sha256:95f8998b9c75ef6bcdecf8e8b4e38f1ae05825f24603889aae4edb9c0cf0c135"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CRUCO2ETRJB5QZNTEQKXVRA33R/bundle.json","state_url":"https://pith.science/pith/CRUCO2ETRJB5QZNTEQKXVRA33R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CRUCO2ETRJB5QZNTEQKXVRA33R/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":"2026-08-13T12:38:31Z","links":{"resolver":"https://pith.science/pith/CRUCO2ETRJB5QZNTEQKXVRA33R","bundle":"https://pith.science/pith/CRUCO2ETRJB5QZNTEQKXVRA33R/bundle.json","state":"https://pith.science/pith/CRUCO2ETRJB5QZNTEQKXVRA33R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CRUCO2ETRJB5QZNTEQKXVRA33R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:CRUCO2ETRJB5QZNTEQKXVRA33R","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":"dcbfff671c55c522c0cf34d5159b513ea94f937e62d58e45e9e28ab653aea638","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-05-04T14:55:55Z","title_canon_sha256":"54db429221db4f27c1037d278d80f600aea11a0baaab2276759211256bb1a3f1"},"schema_version":"1.0","source":{"id":"0905.0271","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.0271","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"arxiv_version","alias_value":"0905.0271v1","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.0271","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"pith_short_12","alias_value":"CRUCO2ETRJB5","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"pith_short_16","alias_value":"CRUCO2ETRJB5QZNT","created_at":"2026-07-04T17:22:07Z"},{"alias_kind":"pith_short_8","alias_value":"CRUCO2ET","created_at":"2026-07-04T17:22:07Z"}],"graph_snapshots":[{"event_id":"sha256:95f8998b9c75ef6bcdecf8e8b4e38f1ae05825f24603889aae4edb9c0cf0c135","target":"graph","created_at":"2026-07-04T17:22:07Z","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/0905.0271/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We use angle resolved photoemission spectroscopy (ARPES) to study the band structure of BaFe2As2 and CaFe2As2, two of the parent compounds of the iron arsenic high temperature superconductors. We find clear evidence for band back folding and hybridization demonstrating that conduction electrons are strongly affected by the emergence of magnetic order. Our high quality data revealed that although the Fermi surface is strongly three-dimensional, it does indeed have long parallel segments along the kz direction that can lead to the emergence of magnetic order. More interestingly, we find very unu","authors_text":"A. Bostwick, A. D. Palczewski, A. Kaminski, Chang Liu, E. Rotenberg, J. Schmalian, M. Shi, Ni Ni, P. C. Canfield, R. Khasanov, R. M. Fernandes, S. L. Bud'ko, Takeshi Kondo","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-05-04T14:55:55Z","title":"Unusual Fermi surface nesting in parent compounds of iron arsenic high temperature superconductors revealed by Angle Resolved Photoemission Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.0271","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":"sha256:0d069a085d128de860ba065df5719a06675a221337dda4b26e6ec75ec9d40987","target":"record","created_at":"2026-07-04T17:22:07Z","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":"dcbfff671c55c522c0cf34d5159b513ea94f937e62d58e45e9e28ab653aea638","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-05-04T14:55:55Z","title_canon_sha256":"54db429221db4f27c1037d278d80f600aea11a0baaab2276759211256bb1a3f1"},"schema_version":"1.0","source":{"id":"0905.0271","kind":"arxiv","version":1}},"canonical_sha256":"14682768938a43d865b324157ac41bdc457558938a3b9bb180aa99178c85b233","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14682768938a43d865b324157ac41bdc457558938a3b9bb180aa99178c85b233","first_computed_at":"2026-07-04T17:22:07.219574Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:22:07.219574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ow6fgo7evydDOgRDLYMh93gJZqGvd0OqEMLDcUfD2jauAG49GifuPR+2vrRjgeNUl0eR/uUDvTJnRWGbZpVYAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T17:22:07.220007Z","signed_message":"canonical_sha256_bytes"},"source_id":"0905.0271","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d069a085d128de860ba065df5719a06675a221337dda4b26e6ec75ec9d40987","sha256:95f8998b9c75ef6bcdecf8e8b4e38f1ae05825f24603889aae4edb9c0cf0c135"],"state_sha256":"e7b6c54af1e32d634141b77c1caafc3aa7dfc6b34e46d86c2ffb5752150ede80"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MZDTn54ilHmjw81b0E9eHut9wnCsaHN6pNQ521u7bvr1OMGz1e+Bh7y4Ao/QfRhxIvkv+lgX8NRkL8zCl249Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T12:38:31.301235Z","bundle_sha256":"8612778682f5d5e3380eafedccc5c2c7285430dfa7a83700dcd2dfe625c97465"}}