{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:CT2F4727OJF3SA4U46M65QTWTK","short_pith_number":"pith:CT2F4727","canonical_record":{"source":{"id":"1201.1649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-08T18:42:05Z","cross_cats_sorted":[],"title_canon_sha256":"1de170748685d5e44b4f81922dbf7d94f4feabd99573f56161d5c456327fd6f0","abstract_canon_sha256":"15ea86056fc7334ca6d688260ccb7ee7d67e16f5782d2ae828f5bc7d9ddb1a8b"},"schema_version":"1.0"},"canonical_sha256":"14f45e7f5f724bb90394e799eec2769aa56df1e1ac2316cccc695e2826b8c276","source":{"kind":"arxiv","id":"1201.1649","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1649","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1649v1","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1649","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"pith_short_12","alias_value":"CT2F4727OJF3","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CT2F4727OJF3SA4U","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CT2F4727","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:CT2F4727OJF3SA4U46M65QTWTK","target":"record","payload":{"canonical_record":{"source":{"id":"1201.1649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-08T18:42:05Z","cross_cats_sorted":[],"title_canon_sha256":"1de170748685d5e44b4f81922dbf7d94f4feabd99573f56161d5c456327fd6f0","abstract_canon_sha256":"15ea86056fc7334ca6d688260ccb7ee7d67e16f5782d2ae828f5bc7d9ddb1a8b"},"schema_version":"1.0"},"canonical_sha256":"14f45e7f5f724bb90394e799eec2769aa56df1e1ac2316cccc695e2826b8c276","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:54.362258Z","signature_b64":"hf/TG/z1qbnMvunMV3zxpQWyB+SIb+84cyD8wwkNQH1GbG4fWURgnB8tFfYUsGA1JpRm2Nc/uTvqP8yHmH/jCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14f45e7f5f724bb90394e799eec2769aa56df1e1ac2316cccc695e2826b8c276","last_reissued_at":"2026-05-18T01:58:54.361505Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:54.361505Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.1649","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":"2026-05-18T01:58:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aUFovWCX6LM4rgmWn/9pnys49Olpyv+ef8B+8uTeqIVQB6Cd5HLrR91Z2fYw8XtjFBM22YJOdIX/vTWkmMV5Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:30:00.466706Z"},"content_sha256":"a705c576e710349eb175c7b75e6364e1fa0a0d80c33c277a51f1a7c9374baa91","schema_version":"1.0","event_id":"sha256:a705c576e710349eb175c7b75e6364e1fa0a0d80c33c277a51f1a7c9374baa91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:CT2F4727OJF3SA4U46M65QTWTK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nodal gap structure in the noncentrosymmetric superconductor LaNiC2 from magnetic-penetration-depth measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"H. H. Sung, I. Bonalde, K. J. Syu, R. L. Ribeiro, W. H. Lee","submitted_at":"2012-01-08T18:42:05Z","abstract_excerpt":"We report measurements of the temperature dependence of the magnetic penetration depth in different quality polycrystalline samples of noncentrosymmetric LaNiC2 down to 0.05 K. This compound has no magnetic phases and breaks time-reversal symmetry. In our highest quality sample we observe a T^2 dependence below 0.4Tc indicative of nodes in the energy gap. We argue that previous results suggesting conventional s-wave behavior may have been affected by magnetic impurities."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1649","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":"2026-05-18T01:58:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PnaOJUkfMhnycydnzh5PhOs+rVQ/wPFFwRFeZG0/lS/RpPzMvzGb2OwZ/NAJpapsFMDOANLCHC7NZd94Fwc+BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:30:00.467348Z"},"content_sha256":"39a4f7c685723fb3066304eebfaffe9fe86ef7adcba4d21a73efc7616363ebf1","schema_version":"1.0","event_id":"sha256:39a4f7c685723fb3066304eebfaffe9fe86ef7adcba4d21a73efc7616363ebf1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CT2F4727OJF3SA4U46M65QTWTK/bundle.json","state_url":"https://pith.science/pith/CT2F4727OJF3SA4U46M65QTWTK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CT2F4727OJF3SA4U46M65QTWTK/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":"2026-06-06T21:30:00Z","links":{"resolver":"https://pith.science/pith/CT2F4727OJF3SA4U46M65QTWTK","bundle":"https://pith.science/pith/CT2F4727OJF3SA4U46M65QTWTK/bundle.json","state":"https://pith.science/pith/CT2F4727OJF3SA4U46M65QTWTK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CT2F4727OJF3SA4U46M65QTWTK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:CT2F4727OJF3SA4U46M65QTWTK","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":"15ea86056fc7334ca6d688260ccb7ee7d67e16f5782d2ae828f5bc7d9ddb1a8b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-08T18:42:05Z","title_canon_sha256":"1de170748685d5e44b4f81922dbf7d94f4feabd99573f56161d5c456327fd6f0"},"schema_version":"1.0","source":{"id":"1201.1649","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1649","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1649v1","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1649","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"pith_short_12","alias_value":"CT2F4727OJF3","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CT2F4727OJF3SA4U","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CT2F4727","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:39a4f7c685723fb3066304eebfaffe9fe86ef7adcba4d21a73efc7616363ebf1","target":"graph","created_at":"2026-05-18T01:58:54Z","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 measurements of the temperature dependence of the magnetic penetration depth in different quality polycrystalline samples of noncentrosymmetric LaNiC2 down to 0.05 K. This compound has no magnetic phases and breaks time-reversal symmetry. In our highest quality sample we observe a T^2 dependence below 0.4Tc indicative of nodes in the energy gap. We argue that previous results suggesting conventional s-wave behavior may have been affected by magnetic impurities.","authors_text":"H. H. Sung, I. Bonalde, K. J. Syu, R. L. Ribeiro, W. H. Lee","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-08T18:42:05Z","title":"Nodal gap structure in the noncentrosymmetric superconductor LaNiC2 from magnetic-penetration-depth measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1649","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:a705c576e710349eb175c7b75e6364e1fa0a0d80c33c277a51f1a7c9374baa91","target":"record","created_at":"2026-05-18T01:58:54Z","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":"15ea86056fc7334ca6d688260ccb7ee7d67e16f5782d2ae828f5bc7d9ddb1a8b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-08T18:42:05Z","title_canon_sha256":"1de170748685d5e44b4f81922dbf7d94f4feabd99573f56161d5c456327fd6f0"},"schema_version":"1.0","source":{"id":"1201.1649","kind":"arxiv","version":1}},"canonical_sha256":"14f45e7f5f724bb90394e799eec2769aa56df1e1ac2316cccc695e2826b8c276","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14f45e7f5f724bb90394e799eec2769aa56df1e1ac2316cccc695e2826b8c276","first_computed_at":"2026-05-18T01:58:54.361505Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:54.361505Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hf/TG/z1qbnMvunMV3zxpQWyB+SIb+84cyD8wwkNQH1GbG4fWURgnB8tFfYUsGA1JpRm2Nc/uTvqP8yHmH/jCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:54.362258Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.1649","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a705c576e710349eb175c7b75e6364e1fa0a0d80c33c277a51f1a7c9374baa91","sha256:39a4f7c685723fb3066304eebfaffe9fe86ef7adcba4d21a73efc7616363ebf1"],"state_sha256":"665af09a91dd803fac2440a019c3c8ff69b823bdfbd8f5f61c6c8dce49bad51e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XP6wxLmy8RNObyo0YiEBeLKKG0UK1zoDnuckeshEfRSu29zqdhpeAzaHX6C11ckHbILAOWRVoL1rbC6ATOS0CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T21:30:00.470702Z","bundle_sha256":"67592d75661f5fca3676b231beb069498b58db972930c801862ff56d0efc8d45"}}