{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ZJ4X4O7QOE7STZ6AOIIHAGEUES","short_pith_number":"pith:ZJ4X4O7Q","canonical_record":{"source":{"id":"1102.1230","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-02-07T04:11:21Z","cross_cats_sorted":[],"title_canon_sha256":"213ce72e90abedd809edd733b04c67f4d33077ecabcb181f6db2a8275e7a2018","abstract_canon_sha256":"5c2697eb291ea1164816efbd632d121fdc57d6e18bbf7e45f7612ba3921d71e0"},"schema_version":"1.0"},"canonical_sha256":"ca797e3bf0713f29e7c07210701894248394cf4e7d716c0f9e9af27f4cadcf0c","source":{"kind":"arxiv","id":"1102.1230","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.1230","created_at":"2026-05-18T04:16:32Z"},{"alias_kind":"arxiv_version","alias_value":"1102.1230v3","created_at":"2026-05-18T04:16:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.1230","created_at":"2026-05-18T04:16:32Z"},{"alias_kind":"pith_short_12","alias_value":"ZJ4X4O7QOE7S","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZJ4X4O7QOE7STZ6A","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZJ4X4O7Q","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ZJ4X4O7QOE7STZ6AOIIHAGEUES","target":"record","payload":{"canonical_record":{"source":{"id":"1102.1230","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-02-07T04:11:21Z","cross_cats_sorted":[],"title_canon_sha256":"213ce72e90abedd809edd733b04c67f4d33077ecabcb181f6db2a8275e7a2018","abstract_canon_sha256":"5c2697eb291ea1164816efbd632d121fdc57d6e18bbf7e45f7612ba3921d71e0"},"schema_version":"1.0"},"canonical_sha256":"ca797e3bf0713f29e7c07210701894248394cf4e7d716c0f9e9af27f4cadcf0c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:16:32.050610Z","signature_b64":"lMHGJ+uMMd1NQlTCLiZW8eQU4uo8/tRHttdyRDYJ/c8AiuHBY0iO5Q2UdpqAIcnZ1c1OA3H0PIkWkua58iSlAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca797e3bf0713f29e7c07210701894248394cf4e7d716c0f9e9af27f4cadcf0c","last_reissued_at":"2026-05-18T04:16:32.050067Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:16:32.050067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.1230","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:16:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CGoNA4sqZ1UZRbQ29A0+uxnCtsjqe/qPENa96B64nlSnxCpGaJwh6vm6Arha/RoJ5xyTXxfeoR7RQgRgdQCGBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:41:02.391268Z"},"content_sha256":"11ffcafe2f933964d6fe16145d3faee7e739cdeeb24f31502a2e9187fd83d55a","schema_version":"1.0","event_id":"sha256:11ffcafe2f933964d6fe16145d3faee7e739cdeeb24f31502a2e9187fd83d55a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ZJ4X4O7QOE7STZ6AOIIHAGEUES","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"La2Sb, a layered superconductor with metal-metal bonds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Hideo Hosono, Hiroshi Mizoguchi","submitted_at":"2011-02-07T04:11:21Z","abstract_excerpt":"We found La2Sb with a layered structure composed of alternate stacking of La square nets and LaSb layers exhibits bulk superconductivity with a critical temperature of 5.3 K. This suggests that the presence of the square net with strong La-La metal bonding is essential for the emergence of superconductivity."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.1230","kind":"arxiv","version":3},"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":"2026-05-18T04:16:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UjEiwckiDKXs6mmdnqvvOKShMvA2+gQCgsGjKEjFEC5UtRuQZu0Xt9PTLI0at6EujS4MpsjqZbnILGXjz3JzDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:41:02.391894Z"},"content_sha256":"f7184cb90b8929aa6d8de7a61ee1efa2072cd5df0060ac8190261abbc70e70bb","schema_version":"1.0","event_id":"sha256:f7184cb90b8929aa6d8de7a61ee1efa2072cd5df0060ac8190261abbc70e70bb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZJ4X4O7QOE7STZ6AOIIHAGEUES/bundle.json","state_url":"https://pith.science/pith/ZJ4X4O7QOE7STZ6AOIIHAGEUES/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZJ4X4O7QOE7STZ6AOIIHAGEUES/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":"2026-05-26T03:41:02Z","links":{"resolver":"https://pith.science/pith/ZJ4X4O7QOE7STZ6AOIIHAGEUES","bundle":"https://pith.science/pith/ZJ4X4O7QOE7STZ6AOIIHAGEUES/bundle.json","state":"https://pith.science/pith/ZJ4X4O7QOE7STZ6AOIIHAGEUES/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZJ4X4O7QOE7STZ6AOIIHAGEUES/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ZJ4X4O7QOE7STZ6AOIIHAGEUES","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":"5c2697eb291ea1164816efbd632d121fdc57d6e18bbf7e45f7612ba3921d71e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-02-07T04:11:21Z","title_canon_sha256":"213ce72e90abedd809edd733b04c67f4d33077ecabcb181f6db2a8275e7a2018"},"schema_version":"1.0","source":{"id":"1102.1230","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.1230","created_at":"2026-05-18T04:16:32Z"},{"alias_kind":"arxiv_version","alias_value":"1102.1230v3","created_at":"2026-05-18T04:16:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.1230","created_at":"2026-05-18T04:16:32Z"},{"alias_kind":"pith_short_12","alias_value":"ZJ4X4O7QOE7S","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZJ4X4O7QOE7STZ6A","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZJ4X4O7Q","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:f7184cb90b8929aa6d8de7a61ee1efa2072cd5df0060ac8190261abbc70e70bb","target":"graph","created_at":"2026-05-18T04:16:32Z","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 found La2Sb with a layered structure composed of alternate stacking of La square nets and LaSb layers exhibits bulk superconductivity with a critical temperature of 5.3 K. This suggests that the presence of the square net with strong La-La metal bonding is essential for the emergence of superconductivity.","authors_text":"Hideo Hosono, Hiroshi Mizoguchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-02-07T04:11:21Z","title":"La2Sb, a layered superconductor with metal-metal bonds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.1230","kind":"arxiv","version":3},"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":"sha256:11ffcafe2f933964d6fe16145d3faee7e739cdeeb24f31502a2e9187fd83d55a","target":"record","created_at":"2026-05-18T04:16:32Z","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":"5c2697eb291ea1164816efbd632d121fdc57d6e18bbf7e45f7612ba3921d71e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-02-07T04:11:21Z","title_canon_sha256":"213ce72e90abedd809edd733b04c67f4d33077ecabcb181f6db2a8275e7a2018"},"schema_version":"1.0","source":{"id":"1102.1230","kind":"arxiv","version":3}},"canonical_sha256":"ca797e3bf0713f29e7c07210701894248394cf4e7d716c0f9e9af27f4cadcf0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca797e3bf0713f29e7c07210701894248394cf4e7d716c0f9e9af27f4cadcf0c","first_computed_at":"2026-05-18T04:16:32.050067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:32.050067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lMHGJ+uMMd1NQlTCLiZW8eQU4uo8/tRHttdyRDYJ/c8AiuHBY0iO5Q2UdpqAIcnZ1c1OA3H0PIkWkua58iSlAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:32.050610Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.1230","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11ffcafe2f933964d6fe16145d3faee7e739cdeeb24f31502a2e9187fd83d55a","sha256:f7184cb90b8929aa6d8de7a61ee1efa2072cd5df0060ac8190261abbc70e70bb"],"state_sha256":"4d896de650367454512c119138940706c07d41c2a431d49f1d8cf0b63870f451"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jd+8f917xqiFa6PSkdvGdgFY31rYB5z3sijKgeeNp7irQLg0mu5LOYQ6RbhZ6y1xAu1pRKJil3Gfp6KNx2F2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:41:02.394877Z","bundle_sha256":"78c6d11ec391e0453de9637bc22946cfb1d815ece75b7b1624c66e182b4be95b"}}