{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:FUSEVIGPYS7V5YHJSJNPY5UFEO","short_pith_number":"pith:FUSEVIGP","canonical_record":{"source":{"id":"1108.4778","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-08-24T07:56:57Z","cross_cats_sorted":[],"title_canon_sha256":"46a503534e9fda9b1f042e173454564f16361c5121cd9a6492bbfed5d6851f55","abstract_canon_sha256":"072a61b6d4fcd5525742c37a6d7481f9a406882c1820649dd245817e7b528634"},"schema_version":"1.0"},"canonical_sha256":"2d244aa0cfc4bf5ee0e9925afc7685239762f7a6dd638a967e9f65a4fac74d7e","source":{"kind":"arxiv","id":"1108.4778","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.4778","created_at":"2026-05-18T03:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"1108.4778v2","created_at":"2026-05-18T03:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.4778","created_at":"2026-05-18T03:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"FUSEVIGPYS7V","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FUSEVIGPYS7V5YHJ","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FUSEVIGP","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:FUSEVIGPYS7V5YHJSJNPY5UFEO","target":"record","payload":{"canonical_record":{"source":{"id":"1108.4778","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-08-24T07:56:57Z","cross_cats_sorted":[],"title_canon_sha256":"46a503534e9fda9b1f042e173454564f16361c5121cd9a6492bbfed5d6851f55","abstract_canon_sha256":"072a61b6d4fcd5525742c37a6d7481f9a406882c1820649dd245817e7b528634"},"schema_version":"1.0"},"canonical_sha256":"2d244aa0cfc4bf5ee0e9925afc7685239762f7a6dd638a967e9f65a4fac74d7e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:52:38.786033Z","signature_b64":"/y9VIuPC2lZFv3KdydhlEaDAHdDpsMFhl440G1VSooklPLkxT3f7vOyM+2eBIHLnKXcyvN7fqG3hmNtdcp5WBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d244aa0cfc4bf5ee0e9925afc7685239762f7a6dd638a967e9f65a4fac74d7e","last_reissued_at":"2026-05-18T03:52:38.785463Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:52:38.785463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.4778","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CuiIM9GflkX2FvbOzPLUVd9vM5+E5DxyIEjXle0Jg4lMdrVeCrmbA6cdmCE2FpH8+XSMlIq4s9FPM3o6biVjDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T14:21:22.295723Z"},"content_sha256":"5f60dcd47423ad3e0d6bf7d71ef0b7cfe2c246098f931983334a784d7312eaf9","schema_version":"1.0","event_id":"sha256:5f60dcd47423ad3e0d6bf7d71ef0b7cfe2c246098f931983334a784d7312eaf9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:FUSEVIGPYS7V5YHJSJNPY5UFEO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The superconducting phase of Calcium under the pressure at 200 GPa: the strong-coupling description","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A.P. Durajski, R. Szcz\\k{e}\\'sniak","submitted_at":"2011-08-24T07:56:57Z","abstract_excerpt":"The thermodynamic parameters of the superconducting state in Calcium under the pressure at 200 GPa have been determined. The numerical analysis by using the Eliashberg equations in the mixed representation has been conducted. It has been stated, that the critical temperature ($T_{C}$) decreases from 36.15 K to 20.79 K dependently on the assumed value of the Coulomb pseudopotential ($\\mu^{*}\\in<0.1,0.3>$). Next, the order parameter near the temperature of zero Kelvin ($\\Delta(0)$) has been obtained. It has been proven, that the dimensionless ratio $2\\Delta(0)/k_{B}T_{C}$ decreases from 4.25 to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.4778","kind":"arxiv","version":2},"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":"2026-05-18T03:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M587szXLKT7QRbVyCOGBscs23lSsJpJQdbWwaX/qWACXjP4Fq0mxv79jq5UFPCCZC/h8wzwLI4Gw0X8ZKsqFCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T14:21:22.296435Z"},"content_sha256":"bc5c5af0ac6ef7076110189328dc5a40376d1972d0fb7265e8e456e6fc3b3ba4","schema_version":"1.0","event_id":"sha256:bc5c5af0ac6ef7076110189328dc5a40376d1972d0fb7265e8e456e6fc3b3ba4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FUSEVIGPYS7V5YHJSJNPY5UFEO/bundle.json","state_url":"https://pith.science/pith/FUSEVIGPYS7V5YHJSJNPY5UFEO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FUSEVIGPYS7V5YHJSJNPY5UFEO/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":"2026-06-07T14:21:22Z","links":{"resolver":"https://pith.science/pith/FUSEVIGPYS7V5YHJSJNPY5UFEO","bundle":"https://pith.science/pith/FUSEVIGPYS7V5YHJSJNPY5UFEO/bundle.json","state":"https://pith.science/pith/FUSEVIGPYS7V5YHJSJNPY5UFEO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FUSEVIGPYS7V5YHJSJNPY5UFEO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FUSEVIGPYS7V5YHJSJNPY5UFEO","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":"072a61b6d4fcd5525742c37a6d7481f9a406882c1820649dd245817e7b528634","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-08-24T07:56:57Z","title_canon_sha256":"46a503534e9fda9b1f042e173454564f16361c5121cd9a6492bbfed5d6851f55"},"schema_version":"1.0","source":{"id":"1108.4778","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.4778","created_at":"2026-05-18T03:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"1108.4778v2","created_at":"2026-05-18T03:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.4778","created_at":"2026-05-18T03:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"FUSEVIGPYS7V","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FUSEVIGPYS7V5YHJ","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FUSEVIGP","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:bc5c5af0ac6ef7076110189328dc5a40376d1972d0fb7265e8e456e6fc3b3ba4","target":"graph","created_at":"2026-05-18T03:52:38Z","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":"The thermodynamic parameters of the superconducting state in Calcium under the pressure at 200 GPa have been determined. The numerical analysis by using the Eliashberg equations in the mixed representation has been conducted. It has been stated, that the critical temperature ($T_{C}$) decreases from 36.15 K to 20.79 K dependently on the assumed value of the Coulomb pseudopotential ($\\mu^{*}\\in<0.1,0.3>$). Next, the order parameter near the temperature of zero Kelvin ($\\Delta(0)$) has been obtained. It has been proven, that the dimensionless ratio $2\\Delta(0)/k_{B}T_{C}$ decreases from 4.25 to ","authors_text":"A.P. Durajski, R. Szcz\\k{e}\\'sniak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-08-24T07:56:57Z","title":"The superconducting phase of Calcium under the pressure at 200 GPa: the strong-coupling description"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.4778","kind":"arxiv","version":2},"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":"sha256:5f60dcd47423ad3e0d6bf7d71ef0b7cfe2c246098f931983334a784d7312eaf9","target":"record","created_at":"2026-05-18T03:52:38Z","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":"072a61b6d4fcd5525742c37a6d7481f9a406882c1820649dd245817e7b528634","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-08-24T07:56:57Z","title_canon_sha256":"46a503534e9fda9b1f042e173454564f16361c5121cd9a6492bbfed5d6851f55"},"schema_version":"1.0","source":{"id":"1108.4778","kind":"arxiv","version":2}},"canonical_sha256":"2d244aa0cfc4bf5ee0e9925afc7685239762f7a6dd638a967e9f65a4fac74d7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d244aa0cfc4bf5ee0e9925afc7685239762f7a6dd638a967e9f65a4fac74d7e","first_computed_at":"2026-05-18T03:52:38.785463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:52:38.785463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/y9VIuPC2lZFv3KdydhlEaDAHdDpsMFhl440G1VSooklPLkxT3f7vOyM+2eBIHLnKXcyvN7fqG3hmNtdcp5WBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:52:38.786033Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.4778","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f60dcd47423ad3e0d6bf7d71ef0b7cfe2c246098f931983334a784d7312eaf9","sha256:bc5c5af0ac6ef7076110189328dc5a40376d1972d0fb7265e8e456e6fc3b3ba4"],"state_sha256":"5d57800ccf44827993ddf17bbe222644e476700e4d48c56f5bbbecd027f33764"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HW3BPou/MlJIhTHbXVZG50xYt5cw95cg9KRqjwy+IIdxsypT9m//1fAQ5m+97vYFnGZbEll/KDGZYs5sFHT6AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T14:21:22.301098Z","bundle_sha256":"8dab1d8bbbeff72988112d93a0baed7db943f261852da0b086427bdb908d3de4"}}