{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:W7TRQLA6GJLSXP3DY7BKWYLQOT","short_pith_number":"pith:W7TRQLA6","canonical_record":{"source":{"id":"1308.4649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-08-21T18:09:16Z","cross_cats_sorted":[],"title_canon_sha256":"5ea5fd5fb3d49a5031c07e8b6ac85539b07b461902d3e9865e3fc0419006e862","abstract_canon_sha256":"88163211143d72d091fcfa17d58c11b983e8f4b29d9494aedc4c34b80d84520e"},"schema_version":"1.0"},"canonical_sha256":"b7e7182c1e32572bbf63c7c2ab617074c5b4850f10135bc0337afd2937c6325a","source":{"kind":"arxiv","id":"1308.4649","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.4649","created_at":"2026-05-18T03:07:42Z"},{"alias_kind":"arxiv_version","alias_value":"1308.4649v1","created_at":"2026-05-18T03:07:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.4649","created_at":"2026-05-18T03:07:42Z"},{"alias_kind":"pith_short_12","alias_value":"W7TRQLA6GJLS","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"W7TRQLA6GJLSXP3D","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"W7TRQLA6","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:W7TRQLA6GJLSXP3DY7BKWYLQOT","target":"record","payload":{"canonical_record":{"source":{"id":"1308.4649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-08-21T18:09:16Z","cross_cats_sorted":[],"title_canon_sha256":"5ea5fd5fb3d49a5031c07e8b6ac85539b07b461902d3e9865e3fc0419006e862","abstract_canon_sha256":"88163211143d72d091fcfa17d58c11b983e8f4b29d9494aedc4c34b80d84520e"},"schema_version":"1.0"},"canonical_sha256":"b7e7182c1e32572bbf63c7c2ab617074c5b4850f10135bc0337afd2937c6325a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:07:42.172693Z","signature_b64":"yujnRX1GHywda2pFNYjtwtPitrQynlbBrrvsQ7yWor4fHn60Z8soESdOxpCnp5KXzEtEkGptamO2vqlUIFfQDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7e7182c1e32572bbf63c7c2ab617074c5b4850f10135bc0337afd2937c6325a","last_reissued_at":"2026-05-18T03:07:42.172091Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:07:42.172091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.4649","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":"2026-05-18T03:07:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"drGQCRJ1iDvied5k+yOQFO4qw7Lf58NRRxd3jqjbUHK4i0amNctWDLlxNxOSQI4w0Fo1oSSfhz2ew97iWiHUDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T16:23:55.778579Z"},"content_sha256":"6147b03fcd60f3487f62b220cdafb2b1f32308d8df0394a7b69c0605a34a27be","schema_version":"1.0","event_id":"sha256:6147b03fcd60f3487f62b220cdafb2b1f32308d8df0394a7b69c0605a34a27be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:W7TRQLA6GJLSXP3DY7BKWYLQOT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconductivity in the Mn5Si3-type Zr5Sb3 system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"(2) Department of Physics, 3) ((1) Texas Center for Superconductivity, (3) Lawrence Berkeley National Laboratory, Astronomy, Berkeley, B. Lorenz (1), B. Lv (1), California, C. W. Chu (1, Department of Physics, F. Y. Wei (1), G. Kotliar (2), Houston, New Jersey, Piscataway, Rutgers University, Texas, University of Houston, USA, USA), X. Y. Zhu (1), Y. Y. Xue (1), Z. P. Yin (2)","submitted_at":"2013-08-21T18:09:16Z","abstract_excerpt":"We report the discovery of superconductivity at 2.3 K in Zr5Sb3, the first superconducting member in the large compound family of the Mn5Si3-structure type. Transport, magnetic, and calorimetric measurements and band structure calculations show it to be a phonon-mediated BCS superconductor, with a relatively large density of states at the Fermi level associated with the d-electrons of Zr and substantially larger electron-phonon coupling compared to the Sn counterpart compound Zr5Sn3. More superconductors with even higher transition temperatures are expected to be found in this family of compou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.4649","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":"2026-05-18T03:07:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"14a21XkwiZhpQDGb2ZhsPAbH02tXONEn0C+fW/KVvVyRSfj+IxWlFnH2z1MpdRNOlOrFxFRAMJQZAniNak0uAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T16:23:55.778930Z"},"content_sha256":"bb36021433cbd0d1a7dda29eeea692a0a3476558f2e06889234c76010e6444d3","schema_version":"1.0","event_id":"sha256:bb36021433cbd0d1a7dda29eeea692a0a3476558f2e06889234c76010e6444d3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W7TRQLA6GJLSXP3DY7BKWYLQOT/bundle.json","state_url":"https://pith.science/pith/W7TRQLA6GJLSXP3DY7BKWYLQOT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W7TRQLA6GJLSXP3DY7BKWYLQOT/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":"2026-06-04T16:23:55Z","links":{"resolver":"https://pith.science/pith/W7TRQLA6GJLSXP3DY7BKWYLQOT","bundle":"https://pith.science/pith/W7TRQLA6GJLSXP3DY7BKWYLQOT/bundle.json","state":"https://pith.science/pith/W7TRQLA6GJLSXP3DY7BKWYLQOT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W7TRQLA6GJLSXP3DY7BKWYLQOT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:W7TRQLA6GJLSXP3DY7BKWYLQOT","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":"88163211143d72d091fcfa17d58c11b983e8f4b29d9494aedc4c34b80d84520e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-08-21T18:09:16Z","title_canon_sha256":"5ea5fd5fb3d49a5031c07e8b6ac85539b07b461902d3e9865e3fc0419006e862"},"schema_version":"1.0","source":{"id":"1308.4649","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.4649","created_at":"2026-05-18T03:07:42Z"},{"alias_kind":"arxiv_version","alias_value":"1308.4649v1","created_at":"2026-05-18T03:07:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.4649","created_at":"2026-05-18T03:07:42Z"},{"alias_kind":"pith_short_12","alias_value":"W7TRQLA6GJLS","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"W7TRQLA6GJLSXP3D","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"W7TRQLA6","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:bb36021433cbd0d1a7dda29eeea692a0a3476558f2e06889234c76010e6444d3","target":"graph","created_at":"2026-05-18T03:07:42Z","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 discovery of superconductivity at 2.3 K in Zr5Sb3, the first superconducting member in the large compound family of the Mn5Si3-structure type. Transport, magnetic, and calorimetric measurements and band structure calculations show it to be a phonon-mediated BCS superconductor, with a relatively large density of states at the Fermi level associated with the d-electrons of Zr and substantially larger electron-phonon coupling compared to the Sn counterpart compound Zr5Sn3. More superconductors with even higher transition temperatures are expected to be found in this family of compou","authors_text":"(2) Department of Physics, 3) ((1) Texas Center for Superconductivity, (3) Lawrence Berkeley National Laboratory, Astronomy, Berkeley, B. Lorenz (1), B. Lv (1), California, C. W. Chu (1, Department of Physics, F. Y. Wei (1), G. Kotliar (2), Houston, New Jersey, Piscataway, Rutgers University, Texas, University of Houston, USA, USA), X. Y. Zhu (1), Y. Y. Xue (1), Z. P. Yin (2)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-08-21T18:09:16Z","title":"Superconductivity in the Mn5Si3-type Zr5Sb3 system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.4649","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":"sha256:6147b03fcd60f3487f62b220cdafb2b1f32308d8df0394a7b69c0605a34a27be","target":"record","created_at":"2026-05-18T03:07:42Z","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":"88163211143d72d091fcfa17d58c11b983e8f4b29d9494aedc4c34b80d84520e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-08-21T18:09:16Z","title_canon_sha256":"5ea5fd5fb3d49a5031c07e8b6ac85539b07b461902d3e9865e3fc0419006e862"},"schema_version":"1.0","source":{"id":"1308.4649","kind":"arxiv","version":1}},"canonical_sha256":"b7e7182c1e32572bbf63c7c2ab617074c5b4850f10135bc0337afd2937c6325a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7e7182c1e32572bbf63c7c2ab617074c5b4850f10135bc0337afd2937c6325a","first_computed_at":"2026-05-18T03:07:42.172091Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:07:42.172091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yujnRX1GHywda2pFNYjtwtPitrQynlbBrrvsQ7yWor4fHn60Z8soESdOxpCnp5KXzEtEkGptamO2vqlUIFfQDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:07:42.172693Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.4649","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6147b03fcd60f3487f62b220cdafb2b1f32308d8df0394a7b69c0605a34a27be","sha256:bb36021433cbd0d1a7dda29eeea692a0a3476558f2e06889234c76010e6444d3"],"state_sha256":"8c2a79ce38e5f6fd65bf6625c2257ed74282f9db0efc0d65fbd6568c251ccc2a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RBTvvoCSttBZHywQeVSPbf9+d4eZk4fk/zVWjzLpUpZweDeirxHvuf9x8cd6WJvpaTUUheL92uvQgwYEeB5IDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T16:23:55.780939Z","bundle_sha256":"a013b8574ed15219069698be287279bd48511b410a95f62c1cfdfca24fff84ac"}}