{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TOIC2WPTLTP5SHAADG466Q42Q5","short_pith_number":"pith:TOIC2WPT","canonical_record":{"source":{"id":"1802.07139","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-02-20T14:51:03Z","cross_cats_sorted":[],"title_canon_sha256":"cd47742737906ac825b3c43e5a3db0eda4e1c3dfddac0aba36f7d8bd435ac948","abstract_canon_sha256":"babc2947bc8d09156b5bc2d65bc14ad621e85b3afcba091f1e7d095f12507fb1"},"schema_version":"1.0"},"canonical_sha256":"9b902d59f35cdfd91c0019b9ef439a8753198fa4a21e2dbe0eb4e27b963066cd","source":{"kind":"arxiv","id":"1802.07139","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.07139","created_at":"2026-05-17T23:54:41Z"},{"alias_kind":"arxiv_version","alias_value":"1802.07139v3","created_at":"2026-05-17T23:54:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.07139","created_at":"2026-05-17T23:54:41Z"},{"alias_kind":"pith_short_12","alias_value":"TOIC2WPTLTP5","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TOIC2WPTLTP5SHAA","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TOIC2WPT","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TOIC2WPTLTP5SHAADG466Q42Q5","target":"record","payload":{"canonical_record":{"source":{"id":"1802.07139","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-02-20T14:51:03Z","cross_cats_sorted":[],"title_canon_sha256":"cd47742737906ac825b3c43e5a3db0eda4e1c3dfddac0aba36f7d8bd435ac948","abstract_canon_sha256":"babc2947bc8d09156b5bc2d65bc14ad621e85b3afcba091f1e7d095f12507fb1"},"schema_version":"1.0"},"canonical_sha256":"9b902d59f35cdfd91c0019b9ef439a8753198fa4a21e2dbe0eb4e27b963066cd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:41.586233Z","signature_b64":"+5pYWy8vKuBy/xnS5Za5SRijXp6CEhwoD0eEdJDWamIeHfetFfLS4t0OBihgTtIX+bFjcSLaonRtURQuAb1WBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b902d59f35cdfd91c0019b9ef439a8753198fa4a21e2dbe0eb4e27b963066cd","last_reissued_at":"2026-05-17T23:54:41.585596Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:41.585596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.07139","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":"2026-05-17T23:54:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t4PEgFXrmR+bflSY8DT18E3EaPUGDcFzhhCOgWrAeWkiK8qi810mV1cnABFOxpsLTgACjKMwQWWJY9jubEEpCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:20:28.051991Z"},"content_sha256":"8ef51c77e01cbacd0584449574df62ad5cc484ae94267cbcfe483150d7aa8c36","schema_version":"1.0","event_id":"sha256:8ef51c77e01cbacd0584449574df62ad5cc484ae94267cbcfe483150d7aa8c36"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TOIC2WPTLTP5SHAADG466Q42Q5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconductivity of Bi-III phase of elemental Bismuth: insights from Muon-Spin Rotation and Density Functional Theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Alex Amato, Andreas \\\"Ostlin, Elvezio Morenzoni, Gediminas Simutis, Hubertus Luetkens, Liviu Chioncel, Rustem Khasanov, Stephan Sch\\\"onecker","submitted_at":"2018-02-20T14:51:03Z","abstract_excerpt":"Using muon-spin rotation the pressure-induced superconductivity in the Bi-III phase of elemental Bismuth (transition temperature $T_{\\rm c}\\simeq7.05$ K) was investigated. The Ginzburg-Landau parameter $\\kappa=\\lambda/\\xi=30(6)$ ($\\lambda$ is the magnetic penetration depth, $\\xi$ is the coherence length) was estimated which is the highest among single element superconductors. The temperature dependence of the superconducting energy gap [$\\Delta(T)$] reconstructed from $\\lambda^{-2}(T)$ deviates from the weak-coupled BCS prediction. The coupling strength $2\\Delta/k_{\\rm B}T_{\\rm c}\\simeq 4.34$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.07139","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":"2026-05-17T23:54:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cHaSGLV9kNg9EBKaxolbT8XcJTrhFlb+n+ndaO71oKQMo3ai/9iovbZzFb0nI70VvY9wnUJaimPxF5WR17PaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:20:28.052649Z"},"content_sha256":"c3974c7727e84cbff93493d048884030de916c796dd4a877d93ae168568e5342","schema_version":"1.0","event_id":"sha256:c3974c7727e84cbff93493d048884030de916c796dd4a877d93ae168568e5342"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TOIC2WPTLTP5SHAADG466Q42Q5/bundle.json","state_url":"https://pith.science/pith/TOIC2WPTLTP5SHAADG466Q42Q5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TOIC2WPTLTP5SHAADG466Q42Q5/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":"2026-05-27T15:20:28Z","links":{"resolver":"https://pith.science/pith/TOIC2WPTLTP5SHAADG466Q42Q5","bundle":"https://pith.science/pith/TOIC2WPTLTP5SHAADG466Q42Q5/bundle.json","state":"https://pith.science/pith/TOIC2WPTLTP5SHAADG466Q42Q5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TOIC2WPTLTP5SHAADG466Q42Q5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TOIC2WPTLTP5SHAADG466Q42Q5","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":"babc2947bc8d09156b5bc2d65bc14ad621e85b3afcba091f1e7d095f12507fb1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-02-20T14:51:03Z","title_canon_sha256":"cd47742737906ac825b3c43e5a3db0eda4e1c3dfddac0aba36f7d8bd435ac948"},"schema_version":"1.0","source":{"id":"1802.07139","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.07139","created_at":"2026-05-17T23:54:41Z"},{"alias_kind":"arxiv_version","alias_value":"1802.07139v3","created_at":"2026-05-17T23:54:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.07139","created_at":"2026-05-17T23:54:41Z"},{"alias_kind":"pith_short_12","alias_value":"TOIC2WPTLTP5","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TOIC2WPTLTP5SHAA","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TOIC2WPT","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:c3974c7727e84cbff93493d048884030de916c796dd4a877d93ae168568e5342","target":"graph","created_at":"2026-05-17T23:54:41Z","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":"Using muon-spin rotation the pressure-induced superconductivity in the Bi-III phase of elemental Bismuth (transition temperature $T_{\\rm c}\\simeq7.05$ K) was investigated. The Ginzburg-Landau parameter $\\kappa=\\lambda/\\xi=30(6)$ ($\\lambda$ is the magnetic penetration depth, $\\xi$ is the coherence length) was estimated which is the highest among single element superconductors. The temperature dependence of the superconducting energy gap [$\\Delta(T)$] reconstructed from $\\lambda^{-2}(T)$ deviates from the weak-coupled BCS prediction. The coupling strength $2\\Delta/k_{\\rm B}T_{\\rm c}\\simeq 4.34$ ","authors_text":"Alex Amato, Andreas \\\"Ostlin, Elvezio Morenzoni, Gediminas Simutis, Hubertus Luetkens, Liviu Chioncel, Rustem Khasanov, Stephan Sch\\\"onecker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-02-20T14:51:03Z","title":"Superconductivity of Bi-III phase of elemental Bismuth: insights from Muon-Spin Rotation and Density Functional Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.07139","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":"sha256:8ef51c77e01cbacd0584449574df62ad5cc484ae94267cbcfe483150d7aa8c36","target":"record","created_at":"2026-05-17T23:54:41Z","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":"babc2947bc8d09156b5bc2d65bc14ad621e85b3afcba091f1e7d095f12507fb1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-02-20T14:51:03Z","title_canon_sha256":"cd47742737906ac825b3c43e5a3db0eda4e1c3dfddac0aba36f7d8bd435ac948"},"schema_version":"1.0","source":{"id":"1802.07139","kind":"arxiv","version":3}},"canonical_sha256":"9b902d59f35cdfd91c0019b9ef439a8753198fa4a21e2dbe0eb4e27b963066cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b902d59f35cdfd91c0019b9ef439a8753198fa4a21e2dbe0eb4e27b963066cd","first_computed_at":"2026-05-17T23:54:41.585596Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:41.585596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+5pYWy8vKuBy/xnS5Za5SRijXp6CEhwoD0eEdJDWamIeHfetFfLS4t0OBihgTtIX+bFjcSLaonRtURQuAb1WBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:41.586233Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.07139","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ef51c77e01cbacd0584449574df62ad5cc484ae94267cbcfe483150d7aa8c36","sha256:c3974c7727e84cbff93493d048884030de916c796dd4a877d93ae168568e5342"],"state_sha256":"9cdd42709828c0fef71cb7dd2ba0c0a495a058e891c655736f783a701548fdea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Be4hkeBYMHaSAMPjrhsLyajLLZ5c7GttMnWmWis4nTcbPdlVu72OvI4nSYN/4DLLt+tDDVqigaVAwTcWLgfZAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T15:20:28.056054Z","bundle_sha256":"82aba5a342e146c99f46e890d8f9a2a702bb2dc1e103365b09bfb4ca258dc12c"}}