{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:N57BKNEFMYA7UCWD6SB6PXJIYF","short_pith_number":"pith:N57BKNEF","canonical_record":{"source":{"id":"1805.08285","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-21T20:42:59Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"6208e728463dac854016154d42a7b2c78fdd95e6ae9e504fb68a05351042ef87","abstract_canon_sha256":"a2425adf191214c992276c789e638ca5ab2343cb84a6f65b0ae8cd07effe2934"},"schema_version":"1.0"},"canonical_sha256":"6f7e1534856601fa0ac3f483e7dd28c1640748fca84d97bc1880952631d7cef0","source":{"kind":"arxiv","id":"1805.08285","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.08285","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"arxiv_version","alias_value":"1805.08285v1","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.08285","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"pith_short_12","alias_value":"N57BKNEFMYA7","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"N57BKNEFMYA7UCWD","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"N57BKNEF","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:N57BKNEFMYA7UCWD6SB6PXJIYF","target":"record","payload":{"canonical_record":{"source":{"id":"1805.08285","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-21T20:42:59Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"6208e728463dac854016154d42a7b2c78fdd95e6ae9e504fb68a05351042ef87","abstract_canon_sha256":"a2425adf191214c992276c789e638ca5ab2343cb84a6f65b0ae8cd07effe2934"},"schema_version":"1.0"},"canonical_sha256":"6f7e1534856601fa0ac3f483e7dd28c1640748fca84d97bc1880952631d7cef0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:59.124761Z","signature_b64":"kEZnsQoaQCHe7jZRuDUrf4pF1ZNZB4z67pGI2lLSD5T/0QMK3po6xRt6s2Yzwc/bi7396avnw0e2N1wL71dPBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f7e1534856601fa0ac3f483e7dd28c1640748fca84d97bc1880952631d7cef0","last_reissued_at":"2026-05-18T00:09:59.123980Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:59.123980Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.08285","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":"2026-05-18T00:09:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KVPD2OV7XeoJoetfuhV5TYRs/mJ6RoZNFU01z3C7kXBJsuv0wDVzzqx/0IkL7iSzp51T+lXTrgQZrdFMrUFjAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:28:57.275473Z"},"content_sha256":"7040808cc18d5ce960819681b996f79d3b067363e2183d226a6cf418f6f44905","schema_version":"1.0","event_id":"sha256:7040808cc18d5ce960819681b996f79d3b067363e2183d226a6cf418f6f44905"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:N57BKNEFMYA7UCWD6SB6PXJIYF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Insights on unconventional superconductivity in HfV$_2$Ga$_4$ and ScV$_2$Ga$_4$ from first principles electronic structure calculations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"A. J. S. Machado, F. B. Santos, H. M. Petrilli, L. T. F. Eleno, P. P. Ferreira","submitted_at":"2018-05-21T20:42:59Z","abstract_excerpt":"The HfV$_2$Ga$_4$ compound was recently reported to exhibit unusual bulk superconducting properties, with the possibility of multiband behavior. To gain insight into its properties, we performed ab-initio electronic structure calculations based on the Density Functional Theory (DFT). Our results show that the density of states at the Fermi energy is mainly composed by V--$d$ states. The McMillan formula predicts a superconducting critical temperature ($T_{c}$) of approximately $3.9\\,$K, in excellent agreement with the experimental value at $4.1\\,$K, indicating that superconductivity in this ne"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08285","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":"2026-05-18T00:09:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b1v6U+7Slkx68yG4GtrbJylaeZrMw5ml0XfYskU/xwE+pK8/3v/W1cbHJG7CnluhxZl1A6wQ+aJ6P7X0MKmKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:28:57.276114Z"},"content_sha256":"0437a0c4f92c9c9644a67336e758cdf7a8df0938ef67a0528424db336e88da4b","schema_version":"1.0","event_id":"sha256:0437a0c4f92c9c9644a67336e758cdf7a8df0938ef67a0528424db336e88da4b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N57BKNEFMYA7UCWD6SB6PXJIYF/bundle.json","state_url":"https://pith.science/pith/N57BKNEFMYA7UCWD6SB6PXJIYF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N57BKNEFMYA7UCWD6SB6PXJIYF/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":"2026-05-30T05:28:57Z","links":{"resolver":"https://pith.science/pith/N57BKNEFMYA7UCWD6SB6PXJIYF","bundle":"https://pith.science/pith/N57BKNEFMYA7UCWD6SB6PXJIYF/bundle.json","state":"https://pith.science/pith/N57BKNEFMYA7UCWD6SB6PXJIYF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N57BKNEFMYA7UCWD6SB6PXJIYF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:N57BKNEFMYA7UCWD6SB6PXJIYF","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":"a2425adf191214c992276c789e638ca5ab2343cb84a6f65b0ae8cd07effe2934","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-21T20:42:59Z","title_canon_sha256":"6208e728463dac854016154d42a7b2c78fdd95e6ae9e504fb68a05351042ef87"},"schema_version":"1.0","source":{"id":"1805.08285","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.08285","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"arxiv_version","alias_value":"1805.08285v1","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.08285","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"pith_short_12","alias_value":"N57BKNEFMYA7","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"N57BKNEFMYA7UCWD","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"N57BKNEF","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:0437a0c4f92c9c9644a67336e758cdf7a8df0938ef67a0528424db336e88da4b","target":"graph","created_at":"2026-05-18T00:09:59Z","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 HfV$_2$Ga$_4$ compound was recently reported to exhibit unusual bulk superconducting properties, with the possibility of multiband behavior. To gain insight into its properties, we performed ab-initio electronic structure calculations based on the Density Functional Theory (DFT). Our results show that the density of states at the Fermi energy is mainly composed by V--$d$ states. The McMillan formula predicts a superconducting critical temperature ($T_{c}$) of approximately $3.9\\,$K, in excellent agreement with the experimental value at $4.1\\,$K, indicating that superconductivity in this ne","authors_text":"A. J. S. Machado, F. B. Santos, H. M. Petrilli, L. T. F. Eleno, P. P. Ferreira","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-21T20:42:59Z","title":"Insights on unconventional superconductivity in HfV$_2$Ga$_4$ and ScV$_2$Ga$_4$ from first principles electronic structure calculations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08285","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":"sha256:7040808cc18d5ce960819681b996f79d3b067363e2183d226a6cf418f6f44905","target":"record","created_at":"2026-05-18T00:09:59Z","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":"a2425adf191214c992276c789e638ca5ab2343cb84a6f65b0ae8cd07effe2934","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-21T20:42:59Z","title_canon_sha256":"6208e728463dac854016154d42a7b2c78fdd95e6ae9e504fb68a05351042ef87"},"schema_version":"1.0","source":{"id":"1805.08285","kind":"arxiv","version":1}},"canonical_sha256":"6f7e1534856601fa0ac3f483e7dd28c1640748fca84d97bc1880952631d7cef0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f7e1534856601fa0ac3f483e7dd28c1640748fca84d97bc1880952631d7cef0","first_computed_at":"2026-05-18T00:09:59.123980Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:59.123980Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kEZnsQoaQCHe7jZRuDUrf4pF1ZNZB4z67pGI2lLSD5T/0QMK3po6xRt6s2Yzwc/bi7396avnw0e2N1wL71dPBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:59.124761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.08285","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7040808cc18d5ce960819681b996f79d3b067363e2183d226a6cf418f6f44905","sha256:0437a0c4f92c9c9644a67336e758cdf7a8df0938ef67a0528424db336e88da4b"],"state_sha256":"6442288fda243aef019cfad0a23c7ba5587ab78982a3c495385a52327e746c29"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QJvpcZ9SELXh66nloYz2Qp0+bB6WFqWt0Qt6Y9jSxeleA18c9pPZwN+d8XFE9ICMeTo7dVkEwXfBuX7EOK/IAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:28:57.279121Z","bundle_sha256":"7b011f06f31e16bb2391a450946f5514e441cd6852b9b748687758bc30333870"}}