{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:UBG4ZQV7TNCRID5Q4QQVCOUJOV","short_pith_number":"pith:UBG4ZQV7","canonical_record":{"source":{"id":"1808.07861","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2018-08-23T17:48:00Z","cross_cats_sorted":["stat.AP"],"title_canon_sha256":"3805539d41e3637868ea80688bad358913d41bf43b78812ac31cd9cba8fc53cc","abstract_canon_sha256":"d9e8955921dcbab149e86e970c3230dd5aa39c817049cdf6834d87bc2d908ca9"},"schema_version":"1.0"},"canonical_sha256":"a04dccc2bf9b45140fb0e421513a897541e9abadbb6ce3c4cf9588efecf2af9b","source":{"kind":"arxiv","id":"1808.07861","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07861","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07861v4","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07861","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"UBG4ZQV7TNCR","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"pith_short_16","alias_value":"UBG4ZQV7TNCRID5Q","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"pith_short_8","alias_value":"UBG4ZQV7","created_at":"2026-07-05T06:03:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:UBG4ZQV7TNCRID5Q4QQVCOUJOV","target":"record","payload":{"canonical_record":{"source":{"id":"1808.07861","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2018-08-23T17:48:00Z","cross_cats_sorted":["stat.AP"],"title_canon_sha256":"3805539d41e3637868ea80688bad358913d41bf43b78812ac31cd9cba8fc53cc","abstract_canon_sha256":"d9e8955921dcbab149e86e970c3230dd5aa39c817049cdf6834d87bc2d908ca9"},"schema_version":"1.0"},"canonical_sha256":"a04dccc2bf9b45140fb0e421513a897541e9abadbb6ce3c4cf9588efecf2af9b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:03:04.791754Z","signature_b64":"MSAlJmVjuuc7K3a/DNkIL7PQGUMSArII1LmcRHx+bLZUKV4GRVgs6AEpCkJ1HgdNK+L281NsZFI3bj+o0gWZDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a04dccc2bf9b45140fb0e421513a897541e9abadbb6ce3c4cf9588efecf2af9b","last_reissued_at":"2026-07-05T06:03:04.791282Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:03:04.791282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.07861","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:03:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xUhG/VLCSXJNYsbd/0IO8cadZrQQGqmiPER2ia5IkhB96QGYtsg4+ZwGHFiAXNChOZnfPxNiZtX1v0kkPzCXDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T17:24:13.737154Z"},"content_sha256":"7f3a3222311079a5393cbbff639c1e34a764fab2b7219b424be5755aa769b406","schema_version":"1.0","event_id":"sha256:7f3a3222311079a5393cbbff639c1e34a764fab2b7219b424be5755aa769b406"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:UBG4ZQV7TNCRID5Q4QQVCOUJOV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On model selection criteria for climate change impact studies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.AP"],"primary_cat":"stat.ME","authors_text":"Bulat Gafarov, Dalia Ghanem, Todd Kuffner, Xiaomeng Cui","submitted_at":"2018-08-23T17:48:00Z","abstract_excerpt":"Climate change impact studies inform policymakers on the estimated damages of future climate change on economic, health and other outcomes. In most studies, an annual outcome variable is observed, e.g. agricultural yield, along with a higher-frequency regressor, e.g. daily temperature. Applied researchers then face a problem of selecting a model to characterize the nonlinear relationship between the outcome and the high-frequency regressor to make a policy recommendation based on the model-implied damage function. We show that existing model selection criteria are only suitable for the policy "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07861","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1808.07861/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T06:03:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qef40+6td3o9gDEGykqMa0p7mTtXhdSCau8GCeFhtBB1hit/nVxDH8oYuuSz2eRqLibr2LPUsYrTMS9oQGXnBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T17:24:13.737548Z"},"content_sha256":"beb260ca4db46bc23a976f85a06bb34a07aa883a10f0196f1434128be779213e","schema_version":"1.0","event_id":"sha256:beb260ca4db46bc23a976f85a06bb34a07aa883a10f0196f1434128be779213e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UBG4ZQV7TNCRID5Q4QQVCOUJOV/bundle.json","state_url":"https://pith.science/pith/UBG4ZQV7TNCRID5Q4QQVCOUJOV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UBG4ZQV7TNCRID5Q4QQVCOUJOV/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":"2026-07-22T17:24:13Z","links":{"resolver":"https://pith.science/pith/UBG4ZQV7TNCRID5Q4QQVCOUJOV","bundle":"https://pith.science/pith/UBG4ZQV7TNCRID5Q4QQVCOUJOV/bundle.json","state":"https://pith.science/pith/UBG4ZQV7TNCRID5Q4QQVCOUJOV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UBG4ZQV7TNCRID5Q4QQVCOUJOV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UBG4ZQV7TNCRID5Q4QQVCOUJOV","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":"d9e8955921dcbab149e86e970c3230dd5aa39c817049cdf6834d87bc2d908ca9","cross_cats_sorted":["stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2018-08-23T17:48:00Z","title_canon_sha256":"3805539d41e3637868ea80688bad358913d41bf43b78812ac31cd9cba8fc53cc"},"schema_version":"1.0","source":{"id":"1808.07861","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07861","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07861v4","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07861","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"UBG4ZQV7TNCR","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"pith_short_16","alias_value":"UBG4ZQV7TNCRID5Q","created_at":"2026-07-05T06:03:04Z"},{"alias_kind":"pith_short_8","alias_value":"UBG4ZQV7","created_at":"2026-07-05T06:03:04Z"}],"graph_snapshots":[{"event_id":"sha256:beb260ca4db46bc23a976f85a06bb34a07aa883a10f0196f1434128be779213e","target":"graph","created_at":"2026-07-05T06:03:04Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1808.07861/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Climate change impact studies inform policymakers on the estimated damages of future climate change on economic, health and other outcomes. In most studies, an annual outcome variable is observed, e.g. agricultural yield, along with a higher-frequency regressor, e.g. daily temperature. Applied researchers then face a problem of selecting a model to characterize the nonlinear relationship between the outcome and the high-frequency regressor to make a policy recommendation based on the model-implied damage function. We show that existing model selection criteria are only suitable for the policy ","authors_text":"Bulat Gafarov, Dalia Ghanem, Todd Kuffner, Xiaomeng Cui","cross_cats":["stat.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2018-08-23T17:48:00Z","title":"On model selection criteria for climate change impact studies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07861","kind":"arxiv","version":4},"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":"sha256:7f3a3222311079a5393cbbff639c1e34a764fab2b7219b424be5755aa769b406","target":"record","created_at":"2026-07-05T06:03:04Z","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":"d9e8955921dcbab149e86e970c3230dd5aa39c817049cdf6834d87bc2d908ca9","cross_cats_sorted":["stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2018-08-23T17:48:00Z","title_canon_sha256":"3805539d41e3637868ea80688bad358913d41bf43b78812ac31cd9cba8fc53cc"},"schema_version":"1.0","source":{"id":"1808.07861","kind":"arxiv","version":4}},"canonical_sha256":"a04dccc2bf9b45140fb0e421513a897541e9abadbb6ce3c4cf9588efecf2af9b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a04dccc2bf9b45140fb0e421513a897541e9abadbb6ce3c4cf9588efecf2af9b","first_computed_at":"2026-07-05T06:03:04.791282Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:03:04.791282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MSAlJmVjuuc7K3a/DNkIL7PQGUMSArII1LmcRHx+bLZUKV4GRVgs6AEpCkJ1HgdNK+L281NsZFI3bj+o0gWZDg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:03:04.791754Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.07861","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f3a3222311079a5393cbbff639c1e34a764fab2b7219b424be5755aa769b406","sha256:beb260ca4db46bc23a976f85a06bb34a07aa883a10f0196f1434128be779213e"],"state_sha256":"3e1fbaadd951ed152ffc59cacafee14370feb6c5ce7728dfe37768a63b9a12b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NFbehleSXdvYuyJfnjAOnUPmhQYB7BXUs1siy9e/SvHJFqvjLpkVziRiw8WfDX7FVk3Bwq50QR7tZE31Op2oDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-22T17:24:13.739748Z","bundle_sha256":"d2b47ec4c66321383e27fd3286e574fbb63fcc09f4a3aab3c81022ecb5a87696"}}