{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:IUGD7EHVEMYDKCDNEQKZQ4EK5A","short_pith_number":"pith:IUGD7EHV","canonical_record":{"source":{"id":"1602.05898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-02-18T18:16:10Z","cross_cats_sorted":["cond-mat.str-el","physics.comp-ph"],"title_canon_sha256":"0123c17ed31b0079314f643428d23f09791d6c92adf1e3939c4d764a73645585","abstract_canon_sha256":"e96473707e83d609ff27eb1c872b4ed70fe06364701d4aa536f242860cedc112"},"schema_version":"1.0"},"canonical_sha256":"450c3f90f5233035086d241598708ae821021eae5930eee4a35f5209e7bbb6fd","source":{"kind":"arxiv","id":"1602.05898","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.05898","created_at":"2026-05-18T00:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"1602.05898v1","created_at":"2026-05-18T00:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.05898","created_at":"2026-05-18T00:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"IUGD7EHVEMYD","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IUGD7EHVEMYDKCDN","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IUGD7EHV","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:IUGD7EHVEMYDKCDNEQKZQ4EK5A","target":"record","payload":{"canonical_record":{"source":{"id":"1602.05898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-02-18T18:16:10Z","cross_cats_sorted":["cond-mat.str-el","physics.comp-ph"],"title_canon_sha256":"0123c17ed31b0079314f643428d23f09791d6c92adf1e3939c4d764a73645585","abstract_canon_sha256":"e96473707e83d609ff27eb1c872b4ed70fe06364701d4aa536f242860cedc112"},"schema_version":"1.0"},"canonical_sha256":"450c3f90f5233035086d241598708ae821021eae5930eee4a35f5209e7bbb6fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:59:25.886436Z","signature_b64":"fHwyzz13S9ZNtET+URHVBUZ2N80iCRKGbyo6psynTIydSShXThkOBT0Batf4Q0QlRdtYRgs/RAglNxdPMfQLBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"450c3f90f5233035086d241598708ae821021eae5930eee4a35f5209e7bbb6fd","last_reissued_at":"2026-05-18T00:59:25.885829Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:59:25.885829Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.05898","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":"2026-05-18T00:59:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2yZbuhE2Y71CG5mg7SrpPOYB4kbpWKc0PrxaWbDSVe4Q/k31xLrOJanbA+EknPklyNEmuK8J6MjSPldY5dfDDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T23:50:25.450772Z"},"content_sha256":"ed5a2d692f63e6bab28660b6e54756b482313543a7d77ee3d5893254c74e651b","schema_version":"1.0","event_id":"sha256:ed5a2d692f63e6bab28660b6e54756b482313543a7d77ee3d5893254c74e651b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:IUGD7EHVEMYDKCDNEQKZQ4EK5A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient temperature-dependent Green's function methods for realistic systems: using cubic spline interpolation to approximate Matsubara Green's functions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","physics.comp-ph"],"primary_cat":"physics.chem-ph","authors_text":"Alexei A. Kananenka, Alicia Rae Welden, Dominika Zgid, Emanuel Gull, Tran Nguyen Lan","submitted_at":"2016-02-18T18:16:10Z","abstract_excerpt":"The popular, stable, robust and computationally inexpensive cubic spline interpolation algorithm is adopted and used for finite temperature Green's function calculations of realistic systems. We demonstrate that with appropriate modifications the temperature dependence can be preserved while the Green's function grid size can be reduced by about two orders of magnitude by replacing the standard Matsubara frequency grid with a sparser grid and a set of interpolation coefficients. We benchmarked the accuracy of our algorithm as a function of a single parameter sensitive to the shape of the Green"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.05898","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":"2026-05-18T00:59:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OClL5shtUQyzROdZf2NKTCNhVK88y4CukvuybT35OchvKCyzvE/4TSXh1oHvhxW+ILyK6siuiHR6jC+OlnvGCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T23:50:25.451126Z"},"content_sha256":"367b64bd50be01173f2464a50aa6850fbe91a1217087078d4273961f491367e9","schema_version":"1.0","event_id":"sha256:367b64bd50be01173f2464a50aa6850fbe91a1217087078d4273961f491367e9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IUGD7EHVEMYDKCDNEQKZQ4EK5A/bundle.json","state_url":"https://pith.science/pith/IUGD7EHVEMYDKCDNEQKZQ4EK5A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IUGD7EHVEMYDKCDNEQKZQ4EK5A/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":"2026-05-28T23:50:25Z","links":{"resolver":"https://pith.science/pith/IUGD7EHVEMYDKCDNEQKZQ4EK5A","bundle":"https://pith.science/pith/IUGD7EHVEMYDKCDNEQKZQ4EK5A/bundle.json","state":"https://pith.science/pith/IUGD7EHVEMYDKCDNEQKZQ4EK5A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IUGD7EHVEMYDKCDNEQKZQ4EK5A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:IUGD7EHVEMYDKCDNEQKZQ4EK5A","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":"e96473707e83d609ff27eb1c872b4ed70fe06364701d4aa536f242860cedc112","cross_cats_sorted":["cond-mat.str-el","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-02-18T18:16:10Z","title_canon_sha256":"0123c17ed31b0079314f643428d23f09791d6c92adf1e3939c4d764a73645585"},"schema_version":"1.0","source":{"id":"1602.05898","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.05898","created_at":"2026-05-18T00:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"1602.05898v1","created_at":"2026-05-18T00:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.05898","created_at":"2026-05-18T00:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"IUGD7EHVEMYD","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IUGD7EHVEMYDKCDN","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IUGD7EHV","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:367b64bd50be01173f2464a50aa6850fbe91a1217087078d4273961f491367e9","target":"graph","created_at":"2026-05-18T00:59:25Z","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 popular, stable, robust and computationally inexpensive cubic spline interpolation algorithm is adopted and used for finite temperature Green's function calculations of realistic systems. We demonstrate that with appropriate modifications the temperature dependence can be preserved while the Green's function grid size can be reduced by about two orders of magnitude by replacing the standard Matsubara frequency grid with a sparser grid and a set of interpolation coefficients. We benchmarked the accuracy of our algorithm as a function of a single parameter sensitive to the shape of the Green","authors_text":"Alexei A. Kananenka, Alicia Rae Welden, Dominika Zgid, Emanuel Gull, Tran Nguyen Lan","cross_cats":["cond-mat.str-el","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-02-18T18:16:10Z","title":"Efficient temperature-dependent Green's function methods for realistic systems: using cubic spline interpolation to approximate Matsubara Green's functions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.05898","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:ed5a2d692f63e6bab28660b6e54756b482313543a7d77ee3d5893254c74e651b","target":"record","created_at":"2026-05-18T00:59:25Z","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":"e96473707e83d609ff27eb1c872b4ed70fe06364701d4aa536f242860cedc112","cross_cats_sorted":["cond-mat.str-el","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-02-18T18:16:10Z","title_canon_sha256":"0123c17ed31b0079314f643428d23f09791d6c92adf1e3939c4d764a73645585"},"schema_version":"1.0","source":{"id":"1602.05898","kind":"arxiv","version":1}},"canonical_sha256":"450c3f90f5233035086d241598708ae821021eae5930eee4a35f5209e7bbb6fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"450c3f90f5233035086d241598708ae821021eae5930eee4a35f5209e7bbb6fd","first_computed_at":"2026-05-18T00:59:25.885829Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:25.885829Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fHwyzz13S9ZNtET+URHVBUZ2N80iCRKGbyo6psynTIydSShXThkOBT0Batf4Q0QlRdtYRgs/RAglNxdPMfQLBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:25.886436Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.05898","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed5a2d692f63e6bab28660b6e54756b482313543a7d77ee3d5893254c74e651b","sha256:367b64bd50be01173f2464a50aa6850fbe91a1217087078d4273961f491367e9"],"state_sha256":"5139e67e92c038e72ed4f845a0d0986d8cfe6fd2fc1965bcc6d1a3b65ef8301b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hvC3bo0Jpsl6yMBzD8ZKyaZiRJHVioMHDX4JWC8qAw3xtQN17m1MPbibkqUJsiXxSGmKEvMa1h2INWjo90AyDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T23:50:25.453327Z","bundle_sha256":"4d27437712c379333b10466522ee3907085ff35a4cadb637bfcc878155203e69"}}