{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:LTBXQ2LYDBBVQTUDWSMUQLYSHY","short_pith_number":"pith:LTBXQ2LY","canonical_record":{"source":{"id":"1904.05541","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-11T05:40:17Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"0765cbb71163def18fa77fa26604aea568ff4f964dc5b1f3ce1cc857da52e0c4","abstract_canon_sha256":"ad43c68f4e6d4acd5e02e158d43ab4b2e5a735530f0256af62734c9e33d66816"},"schema_version":"1.0"},"canonical_sha256":"5cc37869781843584e83b499482f123e0cdcefbf2bc857e9af4d20bf1b191053","source":{"kind":"arxiv","id":"1904.05541","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.05541","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"arxiv_version","alias_value":"1904.05541v1","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.05541","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"pith_short_12","alias_value":"LTBXQ2LYDBBV","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LTBXQ2LYDBBVQTUD","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LTBXQ2LY","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:LTBXQ2LYDBBVQTUDWSMUQLYSHY","target":"record","payload":{"canonical_record":{"source":{"id":"1904.05541","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-11T05:40:17Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"0765cbb71163def18fa77fa26604aea568ff4f964dc5b1f3ce1cc857da52e0c4","abstract_canon_sha256":"ad43c68f4e6d4acd5e02e158d43ab4b2e5a735530f0256af62734c9e33d66816"},"schema_version":"1.0"},"canonical_sha256":"5cc37869781843584e83b499482f123e0cdcefbf2bc857e9af4d20bf1b191053","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:44.289973Z","signature_b64":"LEsFbuLmcwv6NgXlNpBF+rt+gHqkI359BBWqg6pGpTnjgLgDJlQr38tz3eiPJR2XdHuXTdEEtAwBPdv3QkIgAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5cc37869781843584e83b499482f123e0cdcefbf2bc857e9af4d20bf1b191053","last_reissued_at":"2026-05-17T23:39:44.289189Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:44.289189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.05541","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":"2026-05-17T23:39:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O2gsD4w7XBMyTnhR08DOXa9gsqfdlRqQ25kDTA2mx9PKAzTKR7MetRj5awtrrKQdYHsSaG6qwtufsEi8YGRkBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T23:08:32.372173Z"},"content_sha256":"b63a7536f1198f2b7a7831e7111b023e77f03537cf28e0b90f20bbe5efbe2437","schema_version":"1.0","event_id":"sha256:b63a7536f1198f2b7a7831e7111b023e77f03537cf28e0b90f20bbe5efbe2437"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:LTBXQ2LYDBBVQTUDWSMUQLYSHY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coexistence of high electrical conductivity and weak ferromagnetism in Cr doped Y$_2$Ir$_2$O$_7$ pyrochlore iridate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Soumik Mukhopadhyay, Vinod Kumar Dwivedi","submitted_at":"2019-04-11T05:40:17Z","abstract_excerpt":"We report the structural, magnetic and electrical transport properties of Y$_2$Ir$_{2-x}$Cr$_x$O$_7$ pyrochlore iridates. The chemical doping leads to order of magnitude enhancement of electrical conductivity. The introduction of Cr3+ at Ir4+ site tends to distort the Ir-O6 octahedra and suppresses antiferromagnetic correlation. The X-ray photoemission spectroscopy measurements suggest the coexistence of Ir4+ and Ir5+ valence states in the Y$_2$Ir$_{2-x}$Cr$_x$O$_7$ compounds. The concentration of Ir5+ is enhanced with Cr doping, leading to weak ferromagnetism and enhanced electrical conductiv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.05541","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":"2026-05-17T23:39:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iIdCFNpLPd1KX2pp3/KTSbjfp4W3BL+XTzmcYUfI08hDyzap6Kf9xwhACcpqb67OIhWiO/ucDEcqhlH/0FrTBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T23:08:32.372560Z"},"content_sha256":"91e7c34abc1e7769ce6b390060c5dab4e0a2a28bea9b75af41ab81d85d9fc173","schema_version":"1.0","event_id":"sha256:91e7c34abc1e7769ce6b390060c5dab4e0a2a28bea9b75af41ab81d85d9fc173"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LTBXQ2LYDBBVQTUDWSMUQLYSHY/bundle.json","state_url":"https://pith.science/pith/LTBXQ2LYDBBVQTUDWSMUQLYSHY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LTBXQ2LYDBBVQTUDWSMUQLYSHY/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":"2026-07-04T23:08:32Z","links":{"resolver":"https://pith.science/pith/LTBXQ2LYDBBVQTUDWSMUQLYSHY","bundle":"https://pith.science/pith/LTBXQ2LYDBBVQTUDWSMUQLYSHY/bundle.json","state":"https://pith.science/pith/LTBXQ2LYDBBVQTUDWSMUQLYSHY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LTBXQ2LYDBBVQTUDWSMUQLYSHY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:LTBXQ2LYDBBVQTUDWSMUQLYSHY","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":"ad43c68f4e6d4acd5e02e158d43ab4b2e5a735530f0256af62734c9e33d66816","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-11T05:40:17Z","title_canon_sha256":"0765cbb71163def18fa77fa26604aea568ff4f964dc5b1f3ce1cc857da52e0c4"},"schema_version":"1.0","source":{"id":"1904.05541","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.05541","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"arxiv_version","alias_value":"1904.05541v1","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.05541","created_at":"2026-05-17T23:39:44Z"},{"alias_kind":"pith_short_12","alias_value":"LTBXQ2LYDBBV","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LTBXQ2LYDBBVQTUD","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LTBXQ2LY","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:91e7c34abc1e7769ce6b390060c5dab4e0a2a28bea9b75af41ab81d85d9fc173","target":"graph","created_at":"2026-05-17T23:39:44Z","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 the structural, magnetic and electrical transport properties of Y$_2$Ir$_{2-x}$Cr$_x$O$_7$ pyrochlore iridates. The chemical doping leads to order of magnitude enhancement of electrical conductivity. The introduction of Cr3+ at Ir4+ site tends to distort the Ir-O6 octahedra and suppresses antiferromagnetic correlation. The X-ray photoemission spectroscopy measurements suggest the coexistence of Ir4+ and Ir5+ valence states in the Y$_2$Ir$_{2-x}$Cr$_x$O$_7$ compounds. The concentration of Ir5+ is enhanced with Cr doping, leading to weak ferromagnetism and enhanced electrical conductiv","authors_text":"Soumik Mukhopadhyay, Vinod Kumar Dwivedi","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-11T05:40:17Z","title":"Coexistence of high electrical conductivity and weak ferromagnetism in Cr doped Y$_2$Ir$_2$O$_7$ pyrochlore iridate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.05541","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:b63a7536f1198f2b7a7831e7111b023e77f03537cf28e0b90f20bbe5efbe2437","target":"record","created_at":"2026-05-17T23:39:44Z","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":"ad43c68f4e6d4acd5e02e158d43ab4b2e5a735530f0256af62734c9e33d66816","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-04-11T05:40:17Z","title_canon_sha256":"0765cbb71163def18fa77fa26604aea568ff4f964dc5b1f3ce1cc857da52e0c4"},"schema_version":"1.0","source":{"id":"1904.05541","kind":"arxiv","version":1}},"canonical_sha256":"5cc37869781843584e83b499482f123e0cdcefbf2bc857e9af4d20bf1b191053","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5cc37869781843584e83b499482f123e0cdcefbf2bc857e9af4d20bf1b191053","first_computed_at":"2026-05-17T23:39:44.289189Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:44.289189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LEsFbuLmcwv6NgXlNpBF+rt+gHqkI359BBWqg6pGpTnjgLgDJlQr38tz3eiPJR2XdHuXTdEEtAwBPdv3QkIgAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:44.289973Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.05541","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b63a7536f1198f2b7a7831e7111b023e77f03537cf28e0b90f20bbe5efbe2437","sha256:91e7c34abc1e7769ce6b390060c5dab4e0a2a28bea9b75af41ab81d85d9fc173"],"state_sha256":"23c36fde2363a3be96da5d3ec036b201e912abc5ea7856942e107a51b53cf6b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NQmEAq1X7CAUshZLww9Vbztvp+9sz3CqTNFd8uzzCqFLLNGs6SGrdn7jdsBi4+/pocXKBd0LHL8wI6dS3nbzAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T23:08:32.374434Z","bundle_sha256":"269bed015c5033e37f50c0c4011e49212247f2783280577ba9f7747452641c11"}}