{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:ETDQLZBMBQPTN7T7IESPVXXGYQ","short_pith_number":"pith:ETDQLZBM","canonical_record":{"source":{"id":"1301.4114","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2013-01-17T15:12:37Z","cross_cats_sorted":[],"title_canon_sha256":"98ede38d0af4960a14d061b1afedb6d9813d5f684afc9fb71ed991dba34971ee","abstract_canon_sha256":"75c2a79761ccde1034c20274cbac96dd6a0fe20ecd4af63d25f01f5a32591ec4"},"schema_version":"1.0"},"canonical_sha256":"24c705e42c0c1f36fe7f4124fadee6c411b22552a085611a7c6dd5cce664a0d7","source":{"kind":"arxiv","id":"1301.4114","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.4114","created_at":"2026-05-18T03:32:31Z"},{"alias_kind":"arxiv_version","alias_value":"1301.4114v2","created_at":"2026-05-18T03:32:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.4114","created_at":"2026-05-18T03:32:31Z"},{"alias_kind":"pith_short_12","alias_value":"ETDQLZBMBQPT","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"ETDQLZBMBQPTN7T7","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"ETDQLZBM","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:ETDQLZBMBQPTN7T7IESPVXXGYQ","target":"record","payload":{"canonical_record":{"source":{"id":"1301.4114","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2013-01-17T15:12:37Z","cross_cats_sorted":[],"title_canon_sha256":"98ede38d0af4960a14d061b1afedb6d9813d5f684afc9fb71ed991dba34971ee","abstract_canon_sha256":"75c2a79761ccde1034c20274cbac96dd6a0fe20ecd4af63d25f01f5a32591ec4"},"schema_version":"1.0"},"canonical_sha256":"24c705e42c0c1f36fe7f4124fadee6c411b22552a085611a7c6dd5cce664a0d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:32:31.182609Z","signature_b64":"GgK/aEeUBda7rqt/VhsTOvbDQLP06hY7TSObqFBON8TCl0XZqgg+q4SgNtdqHC/swEN9v6QgNvQi5Jq4AjA3Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24c705e42c0c1f36fe7f4124fadee6c411b22552a085611a7c6dd5cce664a0d7","last_reissued_at":"2026-05-18T03:32:31.181976Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:32:31.181976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.4114","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":"2026-05-18T03:32:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xfb9WlFBDK08CmJco7Iak9IwcfVF7QITgtOmdm52P72NznNp/V+VYVoK/2OTc/GLbjUOvVHZoeXQn/r/pHl2CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T22:31:09.666085Z"},"content_sha256":"b2676fc4bded195d763783272610dcd31386c560d8831ddae6939d72a8920247","schema_version":"1.0","event_id":"sha256:b2676fc4bded195d763783272610dcd31386c560d8831ddae6939d72a8920247"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:ETDQLZBMBQPTN7T7IESPVXXGYQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Calibration and improved prediction of computer models by universal Kriging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.AP","authors_text":"Fran\\c{c}ois Bachoc, Guillaume Bois, Jean-Marc Martinez, Josselin Garnier","submitted_at":"2013-01-17T15:12:37Z","abstract_excerpt":"This paper addresses the use of experimental data for calibrating a computer model and improving its predictions of the underlying physical system. A global statistical approach is proposed in which the bias between the computer model and the physical system is modeled as a realization of a Gaussian process. The application of classical statistical inference to this statistical model yields a rigorous method for calibrating the computer model and for adding to its predictions a statistical correction based on experimental data. This statistical correction can substantially improve the calibrat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.4114","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":"2026-05-18T03:32:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1gu4zQewcK405NHRi80XeJiW3s7dbrXw0vUgg6qhuSXg+qmyn3bmh8QXVYl35HHHR5iZHEpTbQXBTpix2dDUAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-14T22:31:09.666444Z"},"content_sha256":"524208d4cfedefe8a31dcbd2202952d5bcbd47026b50285e9f8342eb193c966d","schema_version":"1.0","event_id":"sha256:524208d4cfedefe8a31dcbd2202952d5bcbd47026b50285e9f8342eb193c966d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ETDQLZBMBQPTN7T7IESPVXXGYQ/bundle.json","state_url":"https://pith.science/pith/ETDQLZBMBQPTN7T7IESPVXXGYQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ETDQLZBMBQPTN7T7IESPVXXGYQ/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":"2026-07-14T22:31:09Z","links":{"resolver":"https://pith.science/pith/ETDQLZBMBQPTN7T7IESPVXXGYQ","bundle":"https://pith.science/pith/ETDQLZBMBQPTN7T7IESPVXXGYQ/bundle.json","state":"https://pith.science/pith/ETDQLZBMBQPTN7T7IESPVXXGYQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ETDQLZBMBQPTN7T7IESPVXXGYQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ETDQLZBMBQPTN7T7IESPVXXGYQ","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":"75c2a79761ccde1034c20274cbac96dd6a0fe20ecd4af63d25f01f5a32591ec4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2013-01-17T15:12:37Z","title_canon_sha256":"98ede38d0af4960a14d061b1afedb6d9813d5f684afc9fb71ed991dba34971ee"},"schema_version":"1.0","source":{"id":"1301.4114","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.4114","created_at":"2026-05-18T03:32:31Z"},{"alias_kind":"arxiv_version","alias_value":"1301.4114v2","created_at":"2026-05-18T03:32:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.4114","created_at":"2026-05-18T03:32:31Z"},{"alias_kind":"pith_short_12","alias_value":"ETDQLZBMBQPT","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"ETDQLZBMBQPTN7T7","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"ETDQLZBM","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:524208d4cfedefe8a31dcbd2202952d5bcbd47026b50285e9f8342eb193c966d","target":"graph","created_at":"2026-05-18T03:32:31Z","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":"This paper addresses the use of experimental data for calibrating a computer model and improving its predictions of the underlying physical system. A global statistical approach is proposed in which the bias between the computer model and the physical system is modeled as a realization of a Gaussian process. The application of classical statistical inference to this statistical model yields a rigorous method for calibrating the computer model and for adding to its predictions a statistical correction based on experimental data. This statistical correction can substantially improve the calibrat","authors_text":"Fran\\c{c}ois Bachoc, Guillaume Bois, Jean-Marc Martinez, Josselin Garnier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2013-01-17T15:12:37Z","title":"Calibration and improved prediction of computer models by universal Kriging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.4114","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:b2676fc4bded195d763783272610dcd31386c560d8831ddae6939d72a8920247","target":"record","created_at":"2026-05-18T03:32:31Z","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":"75c2a79761ccde1034c20274cbac96dd6a0fe20ecd4af63d25f01f5a32591ec4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2013-01-17T15:12:37Z","title_canon_sha256":"98ede38d0af4960a14d061b1afedb6d9813d5f684afc9fb71ed991dba34971ee"},"schema_version":"1.0","source":{"id":"1301.4114","kind":"arxiv","version":2}},"canonical_sha256":"24c705e42c0c1f36fe7f4124fadee6c411b22552a085611a7c6dd5cce664a0d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24c705e42c0c1f36fe7f4124fadee6c411b22552a085611a7c6dd5cce664a0d7","first_computed_at":"2026-05-18T03:32:31.181976Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:32:31.181976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GgK/aEeUBda7rqt/VhsTOvbDQLP06hY7TSObqFBON8TCl0XZqgg+q4SgNtdqHC/swEN9v6QgNvQi5Jq4AjA3Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:32:31.182609Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.4114","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2676fc4bded195d763783272610dcd31386c560d8831ddae6939d72a8920247","sha256:524208d4cfedefe8a31dcbd2202952d5bcbd47026b50285e9f8342eb193c966d"],"state_sha256":"e7d26cb16128822049d2bad5844096db0fcd411b2e4f4ba8f8f0b06719b4d936"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OPK2XRxKaUYYcoM8F0FVHJEGBw0qfctFdJZKH33IT4dEMq/J8+mbCuUm9TfwMMZboES4Ov7TFgu81w78SRyQDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-14T22:31:09.668435Z","bundle_sha256":"b1aef81c870cd2dd6e0a25d882518312d0d212b4d02456ff898af36187c8e566"}}