{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:QRH7D7Y4KEVPOG64RLC4B3IM4B","short_pith_number":"pith:QRH7D7Y4","canonical_record":{"source":{"id":"2402.06646","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2024-02-02T01:34:33Z","cross_cats_sorted":["cs.LG","physics.geo-ph"],"title_canon_sha256":"e2c85b2e44c0fa1e8a6396fd5ce40c5ac2540a38536ddfe078b24556589fc08b","abstract_canon_sha256":"3fe27bbfcaa55df125ec1f38f0665ff464702643516c370846fe9a45b20bacfe"},"schema_version":"1.0"},"canonical_sha256":"844ff1ff1c512af71bdc8ac5c0ed0ce043ff7bc5f0cab65973a409f2fc5df8ff","source":{"kind":"arxiv","id":"2402.06646","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.06646","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"arxiv_version","alias_value":"2402.06646v2","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.06646","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"pith_short_12","alias_value":"QRH7D7Y4KEVP","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"pith_short_16","alias_value":"QRH7D7Y4KEVPOG64","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"pith_short_8","alias_value":"QRH7D7Y4","created_at":"2026-07-05T08:04:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:QRH7D7Y4KEVPOG64RLC4B3IM4B","target":"record","payload":{"canonical_record":{"source":{"id":"2402.06646","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2024-02-02T01:34:33Z","cross_cats_sorted":["cs.LG","physics.geo-ph"],"title_canon_sha256":"e2c85b2e44c0fa1e8a6396fd5ce40c5ac2540a38536ddfe078b24556589fc08b","abstract_canon_sha256":"3fe27bbfcaa55df125ec1f38f0665ff464702643516c370846fe9a45b20bacfe"},"schema_version":"1.0"},"canonical_sha256":"844ff1ff1c512af71bdc8ac5c0ed0ce043ff7bc5f0cab65973a409f2fc5df8ff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:04:37.599217Z","signature_b64":"CyZbpjH121IZP+1gruxPwhnCm1FDD9ZeZ24BVRKyXDLY+P2hxVBHx/lZ4ovmpWi/z34Os2SiKUR+jaDwR1UkAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"844ff1ff1c512af71bdc8ac5c0ed0ce043ff7bc5f0cab65973a409f2fc5df8ff","last_reissued_at":"2026-07-05T08:04:37.598686Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:04:37.598686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.06646","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":"2026-07-05T08:04:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"38qQunw5jhz8n2F3kX0v51FZHsabWlT8dktbCm/aySgGbNBFLJVc+2ui/oE0Tv16lQfHpwQXqjbCV4HTWc5iBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T17:22:04.629584Z"},"content_sha256":"7d9c4e771fe504aa57efd762cf5ea359eebad57ca92811c25ec3fc6f8c56c5c7","schema_version":"1.0","event_id":"sha256:7d9c4e771fe504aa57efd762cf5ea359eebad57ca92811c25ec3fc6f8c56c5c7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:QRH7D7Y4KEVPOG64RLC4B3IM4B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diffusion Model-based Probabilistic Downscaling for 180-year East Asian Climate Reconstruction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","physics.geo-ph"],"primary_cat":"physics.ao-ph","authors_text":"Baoxiang Pan, Dachao Jin, Fenghua Ling, Huidong Jiang, Jing-Jia Luo, Lei Bai, Swadhin K. Behera, Toshio Yamagata, Zeyu Lu","submitted_at":"2024-02-02T01:34:33Z","abstract_excerpt":"As our planet is entering into the \"global boiling\" era, understanding regional climate change becomes imperative. Effective downscaling methods that provide localized insights are crucial for this target. Traditional approaches, including computationally-demanding regional dynamical models or statistical downscaling frameworks, are often susceptible to the influence of downscaling uncertainty. Here, we address these limitations by introducing a diffusion probabilistic downscaling model (DPDM) into the meteorological field. This model can efficiently transform data from 1{\\deg} to 0.1{\\deg} re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.06646","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2402.06646/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":"2026-07-05T08:04:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x73y6SOC3DKQZcPkieAStounvRzReTWSycrwR8qmO/bLmk4CZ+vAkPWl+/DgNXLqUVTS60mpOdMeK56L810PDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T17:22:04.629958Z"},"content_sha256":"591445f3a0c665df6069ea900870c2c8f4768e45814101149698c109f41b3ec3","schema_version":"1.0","event_id":"sha256:591445f3a0c665df6069ea900870c2c8f4768e45814101149698c109f41b3ec3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QRH7D7Y4KEVPOG64RLC4B3IM4B/bundle.json","state_url":"https://pith.science/pith/QRH7D7Y4KEVPOG64RLC4B3IM4B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QRH7D7Y4KEVPOG64RLC4B3IM4B/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":"2026-07-06T17:22:04Z","links":{"resolver":"https://pith.science/pith/QRH7D7Y4KEVPOG64RLC4B3IM4B","bundle":"https://pith.science/pith/QRH7D7Y4KEVPOG64RLC4B3IM4B/bundle.json","state":"https://pith.science/pith/QRH7D7Y4KEVPOG64RLC4B3IM4B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QRH7D7Y4KEVPOG64RLC4B3IM4B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:QRH7D7Y4KEVPOG64RLC4B3IM4B","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":"3fe27bbfcaa55df125ec1f38f0665ff464702643516c370846fe9a45b20bacfe","cross_cats_sorted":["cs.LG","physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2024-02-02T01:34:33Z","title_canon_sha256":"e2c85b2e44c0fa1e8a6396fd5ce40c5ac2540a38536ddfe078b24556589fc08b"},"schema_version":"1.0","source":{"id":"2402.06646","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.06646","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"arxiv_version","alias_value":"2402.06646v2","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.06646","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"pith_short_12","alias_value":"QRH7D7Y4KEVP","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"pith_short_16","alias_value":"QRH7D7Y4KEVPOG64","created_at":"2026-07-05T08:04:37Z"},{"alias_kind":"pith_short_8","alias_value":"QRH7D7Y4","created_at":"2026-07-05T08:04:37Z"}],"graph_snapshots":[{"event_id":"sha256:591445f3a0c665df6069ea900870c2c8f4768e45814101149698c109f41b3ec3","target":"graph","created_at":"2026-07-05T08:04:37Z","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/2402.06646/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As our planet is entering into the \"global boiling\" era, understanding regional climate change becomes imperative. Effective downscaling methods that provide localized insights are crucial for this target. Traditional approaches, including computationally-demanding regional dynamical models or statistical downscaling frameworks, are often susceptible to the influence of downscaling uncertainty. Here, we address these limitations by introducing a diffusion probabilistic downscaling model (DPDM) into the meteorological field. This model can efficiently transform data from 1{\\deg} to 0.1{\\deg} re","authors_text":"Baoxiang Pan, Dachao Jin, Fenghua Ling, Huidong Jiang, Jing-Jia Luo, Lei Bai, Swadhin K. Behera, Toshio Yamagata, Zeyu Lu","cross_cats":["cs.LG","physics.geo-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2024-02-02T01:34:33Z","title":"Diffusion Model-based Probabilistic Downscaling for 180-year East Asian Climate Reconstruction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.06646","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":"sha256:7d9c4e771fe504aa57efd762cf5ea359eebad57ca92811c25ec3fc6f8c56c5c7","target":"record","created_at":"2026-07-05T08:04:37Z","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":"3fe27bbfcaa55df125ec1f38f0665ff464702643516c370846fe9a45b20bacfe","cross_cats_sorted":["cs.LG","physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2024-02-02T01:34:33Z","title_canon_sha256":"e2c85b2e44c0fa1e8a6396fd5ce40c5ac2540a38536ddfe078b24556589fc08b"},"schema_version":"1.0","source":{"id":"2402.06646","kind":"arxiv","version":2}},"canonical_sha256":"844ff1ff1c512af71bdc8ac5c0ed0ce043ff7bc5f0cab65973a409f2fc5df8ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"844ff1ff1c512af71bdc8ac5c0ed0ce043ff7bc5f0cab65973a409f2fc5df8ff","first_computed_at":"2026-07-05T08:04:37.598686Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:04:37.598686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CyZbpjH121IZP+1gruxPwhnCm1FDD9ZeZ24BVRKyXDLY+P2hxVBHx/lZ4ovmpWi/z34Os2SiKUR+jaDwR1UkAw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:04:37.599217Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.06646","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d9c4e771fe504aa57efd762cf5ea359eebad57ca92811c25ec3fc6f8c56c5c7","sha256:591445f3a0c665df6069ea900870c2c8f4768e45814101149698c109f41b3ec3"],"state_sha256":"e773da72cce045921d01606b7b807a9ee765c9a3be102a34b47c6d6423431172"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"brWLIimJs2d3oFZeeZbrUbKd3hmZ7S3xwmVXCsXQXDZg+wlgt7xH61SdOQK8W1typJhZLmbWJE5BLgbrkMPuBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T17:22:04.631959Z","bundle_sha256":"5d0161528746a96a906563d7943b607a0a78971811cf5e39fede907e41315b88"}}