{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:6NSDW36Y647GD5FF25NUX5A2HL","short_pith_number":"pith:6NSDW36Y","canonical_record":{"source":{"id":"1808.08564","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-08-26T14:44:13Z","cross_cats_sorted":[],"title_canon_sha256":"790853d805c6bfa492fae4a2281dd72ed34efb2bb8a062382a4fe4658cd50ad4","abstract_canon_sha256":"9646eab4a2a27fc6cf83cbf1504b6ddc98607c5f53569fac77940007a902f858"},"schema_version":"1.0"},"canonical_sha256":"f3643b6fd8f73e61f4a5d75b4bf41a3ae775ceb4680bb65a7b149b7b50219a08","source":{"kind":"arxiv","id":"1808.08564","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.08564","created_at":"2026-05-18T00:07:16Z"},{"alias_kind":"arxiv_version","alias_value":"1808.08564v1","created_at":"2026-05-18T00:07:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.08564","created_at":"2026-05-18T00:07:16Z"},{"alias_kind":"pith_short_12","alias_value":"6NSDW36Y647G","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6NSDW36Y647GD5FF","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6NSDW36Y","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:6NSDW36Y647GD5FF25NUX5A2HL","target":"record","payload":{"canonical_record":{"source":{"id":"1808.08564","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-08-26T14:44:13Z","cross_cats_sorted":[],"title_canon_sha256":"790853d805c6bfa492fae4a2281dd72ed34efb2bb8a062382a4fe4658cd50ad4","abstract_canon_sha256":"9646eab4a2a27fc6cf83cbf1504b6ddc98607c5f53569fac77940007a902f858"},"schema_version":"1.0"},"canonical_sha256":"f3643b6fd8f73e61f4a5d75b4bf41a3ae775ceb4680bb65a7b149b7b50219a08","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:16.058976Z","signature_b64":"+XMuXX5DHivNnnRj73nMV6eq1eNFArK5nsmEkyl7EpdHie7jogqKM/tppqPUOFEwQ5fSfJOMVTkfzigm25iACQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f3643b6fd8f73e61f4a5d75b4bf41a3ae775ceb4680bb65a7b149b7b50219a08","last_reissued_at":"2026-05-18T00:07:16.058238Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:16.058238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.08564","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":"2026-05-18T00:07:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UaKCPdzJ6fd6FIiyZpz+Yp7vTKQI/XOgt17N32nlANLG4HQlHlpjZCtjV+6y7ko9E+5/UW8BzvXbvMMtEsWRDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:24:08.180905Z"},"content_sha256":"a5ac70414db30a20e31c0b8dc413b548bb2a46878702818feb29a4523078d75b","schema_version":"1.0","event_id":"sha256:a5ac70414db30a20e31c0b8dc413b548bb2a46878702818feb29a4523078d75b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:6NSDW36Y647GD5FF25NUX5A2HL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase transition in CaFeAsH: bridging 1111 and 122 iron-based superconductors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Hidenori Hiramatsu, Hideo Hosono, Kazutaka Ikeda, Satoru Matsuishi, Soshi Iimura, Takashi Honda, Toshiya Otomo, Yoshinori Muraba","submitted_at":"2018-08-26T14:44:13Z","abstract_excerpt":"Iron-based superconductors can be categorized as two types of parent compounds by considering the nature of their temperature-induced phase transitions; namely, first order transitions for 122- and 11-type compounds and second-order transitions for 1111-type compounds. This work examines the structural and magnetic transitions (ST and MT) of CaFeAsH by specific heat, X-ray diffraction, neutron diffraction, and electrical resistivity measurements. Heat capacity measurements revealed a second-order phase transition accompanies an apparent single peak at 96 K. However, a clear ST from the tetrago"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.08564","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":"2026-05-18T00:07:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IJYa9xh9rfFNNpF25GhPv7GWGOc3qMPS8bLDzhzKFEMLH2jkjnn3VSEVsvxA4fm/MPoqa8GyOUAkr0Hl9tUuCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:24:08.181572Z"},"content_sha256":"926f504bfcb7249456ae9d12f491d21af87b3702a11b35a33b81ddba295182de","schema_version":"1.0","event_id":"sha256:926f504bfcb7249456ae9d12f491d21af87b3702a11b35a33b81ddba295182de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6NSDW36Y647GD5FF25NUX5A2HL/bundle.json","state_url":"https://pith.science/pith/6NSDW36Y647GD5FF25NUX5A2HL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6NSDW36Y647GD5FF25NUX5A2HL/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":"2026-05-25T16:24:08Z","links":{"resolver":"https://pith.science/pith/6NSDW36Y647GD5FF25NUX5A2HL","bundle":"https://pith.science/pith/6NSDW36Y647GD5FF25NUX5A2HL/bundle.json","state":"https://pith.science/pith/6NSDW36Y647GD5FF25NUX5A2HL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6NSDW36Y647GD5FF25NUX5A2HL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6NSDW36Y647GD5FF25NUX5A2HL","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":"9646eab4a2a27fc6cf83cbf1504b6ddc98607c5f53569fac77940007a902f858","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-08-26T14:44:13Z","title_canon_sha256":"790853d805c6bfa492fae4a2281dd72ed34efb2bb8a062382a4fe4658cd50ad4"},"schema_version":"1.0","source":{"id":"1808.08564","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.08564","created_at":"2026-05-18T00:07:16Z"},{"alias_kind":"arxiv_version","alias_value":"1808.08564v1","created_at":"2026-05-18T00:07:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.08564","created_at":"2026-05-18T00:07:16Z"},{"alias_kind":"pith_short_12","alias_value":"6NSDW36Y647G","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6NSDW36Y647GD5FF","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6NSDW36Y","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:926f504bfcb7249456ae9d12f491d21af87b3702a11b35a33b81ddba295182de","target":"graph","created_at":"2026-05-18T00:07:16Z","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":"Iron-based superconductors can be categorized as two types of parent compounds by considering the nature of their temperature-induced phase transitions; namely, first order transitions for 122- and 11-type compounds and second-order transitions for 1111-type compounds. This work examines the structural and magnetic transitions (ST and MT) of CaFeAsH by specific heat, X-ray diffraction, neutron diffraction, and electrical resistivity measurements. Heat capacity measurements revealed a second-order phase transition accompanies an apparent single peak at 96 K. However, a clear ST from the tetrago","authors_text":"Hidenori Hiramatsu, Hideo Hosono, Kazutaka Ikeda, Satoru Matsuishi, Soshi Iimura, Takashi Honda, Toshiya Otomo, Yoshinori Muraba","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-08-26T14:44:13Z","title":"Phase transition in CaFeAsH: bridging 1111 and 122 iron-based superconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.08564","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:a5ac70414db30a20e31c0b8dc413b548bb2a46878702818feb29a4523078d75b","target":"record","created_at":"2026-05-18T00:07:16Z","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":"9646eab4a2a27fc6cf83cbf1504b6ddc98607c5f53569fac77940007a902f858","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-08-26T14:44:13Z","title_canon_sha256":"790853d805c6bfa492fae4a2281dd72ed34efb2bb8a062382a4fe4658cd50ad4"},"schema_version":"1.0","source":{"id":"1808.08564","kind":"arxiv","version":1}},"canonical_sha256":"f3643b6fd8f73e61f4a5d75b4bf41a3ae775ceb4680bb65a7b149b7b50219a08","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f3643b6fd8f73e61f4a5d75b4bf41a3ae775ceb4680bb65a7b149b7b50219a08","first_computed_at":"2026-05-18T00:07:16.058238Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:16.058238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+XMuXX5DHivNnnRj73nMV6eq1eNFArK5nsmEkyl7EpdHie7jogqKM/tppqPUOFEwQ5fSfJOMVTkfzigm25iACQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:16.058976Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.08564","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5ac70414db30a20e31c0b8dc413b548bb2a46878702818feb29a4523078d75b","sha256:926f504bfcb7249456ae9d12f491d21af87b3702a11b35a33b81ddba295182de"],"state_sha256":"ce82a2b89aacd122e2156fb57ed494e47f93f112e9ab2db0c13b08992793b042"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l5kT2OA4/s1Ooq7+CzOi6nw1JEF2Dbrf/rBIbo4oV5Xsd/tguMvTMHVIlcW7wVn/SEiHephiWDvLxCN6nJwEDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:24:08.185788Z","bundle_sha256":"5317016a6e472911ebba669bd3a27acade6f9aeaad277137be7c6dc4782bf36a"}}