{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:IVI6XNIFN2R36EO4OSRL6ZYWIX","short_pith_number":"pith:IVI6XNIF","canonical_record":{"source":{"id":"1401.5416","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-01-21T18:48:55Z","cross_cats_sorted":[],"title_canon_sha256":"b68154759e2b08fc7419cc8fbc7be308faf14da501a35e2ea90af812384e9b2d","abstract_canon_sha256":"ecb5080f77cd1169f051f5d4771f4200b12f1391d9921d24e8eee651a44551d4"},"schema_version":"1.0"},"canonical_sha256":"4551ebb5056ea3bf11dc74a2bf671645c6d379b8a6c8a29c3a565b3ceee8aca1","source":{"kind":"arxiv","id":"1401.5416","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.5416","created_at":"2026-05-18T00:48:28Z"},{"alias_kind":"arxiv_version","alias_value":"1401.5416v1","created_at":"2026-05-18T00:48:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.5416","created_at":"2026-05-18T00:48:28Z"},{"alias_kind":"pith_short_12","alias_value":"IVI6XNIFN2R3","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IVI6XNIFN2R36EO4","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IVI6XNIF","created_at":"2026-05-18T12:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:IVI6XNIFN2R36EO4OSRL6ZYWIX","target":"record","payload":{"canonical_record":{"source":{"id":"1401.5416","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-01-21T18:48:55Z","cross_cats_sorted":[],"title_canon_sha256":"b68154759e2b08fc7419cc8fbc7be308faf14da501a35e2ea90af812384e9b2d","abstract_canon_sha256":"ecb5080f77cd1169f051f5d4771f4200b12f1391d9921d24e8eee651a44551d4"},"schema_version":"1.0"},"canonical_sha256":"4551ebb5056ea3bf11dc74a2bf671645c6d379b8a6c8a29c3a565b3ceee8aca1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:48:28.924201Z","signature_b64":"JjywFBnuwtqxK6j/zPmsI/QNmwdrp/oSwkOyo+X903CKF+7SptJNLKg4jliSk7SvMbyNQ6/E/HUAsNCp8wAMAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4551ebb5056ea3bf11dc74a2bf671645c6d379b8a6c8a29c3a565b3ceee8aca1","last_reissued_at":"2026-05-18T00:48:28.923548Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:48:28.923548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.5416","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":"2026-05-18T00:48:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xCiEOEu1SSfO6N67Pm3RE8fg34MIbrJdUW8yYi2ggHqG1D74R5jjlSa59JLcT/FvmxMZlsg7Q5nGLmjKw6JeDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T21:33:04.614905Z"},"content_sha256":"dc145abd919eb4deaa5fbf6a108889e751a7e2805a88513ad9589ca872c3ee04","schema_version":"1.0","event_id":"sha256:dc145abd919eb4deaa5fbf6a108889e751a7e2805a88513ad9589ca872c3ee04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:IVI6XNIFN2R36EO4OSRL6ZYWIX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dramatic Changes in the Electronic Structure Upon Transition to the Collapsed Tetragonal Phase in CaFe2As2","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Adam Kaminski, B. N. Harmon, Milan Tomi`c, P. C. Canfield, Roser Valent'i, R. S. Dhaka, Rui Jiang, S. L. Bud'ko, S. Ran, Yongbin Lee","submitted_at":"2014-01-21T18:48:55Z","abstract_excerpt":"We use angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic structure of CaFe$_2$As$_2$ in previously unexplored collapsed tetragonal (CT) phase. This unusual phase of the iron arsenic high temperature superconductors was hard to measure as it exists only under pressure. By inducing internal strain, via the post growth, thermal treatment of the single crystals, we were able to stabilize the CT phase at ambient-pressure. We find significant differences in the Fermi surface topology and band dispersion data from the more commo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.5416","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":"2026-05-18T00:48:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G5Lg/MKKiOW/lLuKo8ZhcKYcwmtw75z0sgXnWu2UmZ1M9pUo6INX+rUAgWZqMXztoF6ybE8prExwkel9PK5SCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T21:33:04.615484Z"},"content_sha256":"1ebf41990a857a1c0dee82853dd0ae65c3d0dc307e4770f2f7dac57dc3df26a9","schema_version":"1.0","event_id":"sha256:1ebf41990a857a1c0dee82853dd0ae65c3d0dc307e4770f2f7dac57dc3df26a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IVI6XNIFN2R36EO4OSRL6ZYWIX/bundle.json","state_url":"https://pith.science/pith/IVI6XNIFN2R36EO4OSRL6ZYWIX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IVI6XNIFN2R36EO4OSRL6ZYWIX/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":"2026-05-18T21:33:04Z","links":{"resolver":"https://pith.science/pith/IVI6XNIFN2R36EO4OSRL6ZYWIX","bundle":"https://pith.science/pith/IVI6XNIFN2R36EO4OSRL6ZYWIX/bundle.json","state":"https://pith.science/pith/IVI6XNIFN2R36EO4OSRL6ZYWIX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IVI6XNIFN2R36EO4OSRL6ZYWIX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:IVI6XNIFN2R36EO4OSRL6ZYWIX","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":"ecb5080f77cd1169f051f5d4771f4200b12f1391d9921d24e8eee651a44551d4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-01-21T18:48:55Z","title_canon_sha256":"b68154759e2b08fc7419cc8fbc7be308faf14da501a35e2ea90af812384e9b2d"},"schema_version":"1.0","source":{"id":"1401.5416","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.5416","created_at":"2026-05-18T00:48:28Z"},{"alias_kind":"arxiv_version","alias_value":"1401.5416v1","created_at":"2026-05-18T00:48:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.5416","created_at":"2026-05-18T00:48:28Z"},{"alias_kind":"pith_short_12","alias_value":"IVI6XNIFN2R3","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IVI6XNIFN2R36EO4","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IVI6XNIF","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:1ebf41990a857a1c0dee82853dd0ae65c3d0dc307e4770f2f7dac57dc3df26a9","target":"graph","created_at":"2026-05-18T00:48:28Z","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 use angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic structure of CaFe$_2$As$_2$ in previously unexplored collapsed tetragonal (CT) phase. This unusual phase of the iron arsenic high temperature superconductors was hard to measure as it exists only under pressure. By inducing internal strain, via the post growth, thermal treatment of the single crystals, we were able to stabilize the CT phase at ambient-pressure. We find significant differences in the Fermi surface topology and band dispersion data from the more commo","authors_text":"Adam Kaminski, B. N. Harmon, Milan Tomi`c, P. C. Canfield, Roser Valent'i, R. S. Dhaka, Rui Jiang, S. L. Bud'ko, S. Ran, Yongbin Lee","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-01-21T18:48:55Z","title":"Dramatic Changes in the Electronic Structure Upon Transition to the Collapsed Tetragonal Phase in CaFe2As2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.5416","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:dc145abd919eb4deaa5fbf6a108889e751a7e2805a88513ad9589ca872c3ee04","target":"record","created_at":"2026-05-18T00:48:28Z","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":"ecb5080f77cd1169f051f5d4771f4200b12f1391d9921d24e8eee651a44551d4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-01-21T18:48:55Z","title_canon_sha256":"b68154759e2b08fc7419cc8fbc7be308faf14da501a35e2ea90af812384e9b2d"},"schema_version":"1.0","source":{"id":"1401.5416","kind":"arxiv","version":1}},"canonical_sha256":"4551ebb5056ea3bf11dc74a2bf671645c6d379b8a6c8a29c3a565b3ceee8aca1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4551ebb5056ea3bf11dc74a2bf671645c6d379b8a6c8a29c3a565b3ceee8aca1","first_computed_at":"2026-05-18T00:48:28.923548Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:28.923548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JjywFBnuwtqxK6j/zPmsI/QNmwdrp/oSwkOyo+X903CKF+7SptJNLKg4jliSk7SvMbyNQ6/E/HUAsNCp8wAMAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:28.924201Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.5416","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc145abd919eb4deaa5fbf6a108889e751a7e2805a88513ad9589ca872c3ee04","sha256:1ebf41990a857a1c0dee82853dd0ae65c3d0dc307e4770f2f7dac57dc3df26a9"],"state_sha256":"f998e5734efe25efd6fbb3feacd7c536168355edbc5e3c2f9f6c73984b812945"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SezYEAs2j2TlPWY+pRdoMQ5C8TEolTsOKeYS7EEDCQbjM3sKpf9I/t2wdcTZ7KUHJTsPfSPx2GNczhzuDk8LDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T21:33:04.617206Z","bundle_sha256":"e8cdf4e90e1c07d3d9611364d250043d7694805b3299decf92e652eea70d8f82"}}