{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3KNVXAEFDHJLQ76EEEMUOKZNZF","short_pith_number":"pith:3KNVXAEF","canonical_record":{"source":{"id":"1804.10736","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-04-28T03:54:06Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"58059e61c8c483f69b3d9e618183b72892bd522cd6be57f5dd2c2837c9a1321f","abstract_canon_sha256":"c2dd82048f4a3512d935d8962a23e359cbb96bd0863f5808aa2eaf21d07897e8"},"schema_version":"1.0"},"canonical_sha256":"da9b5b808519d2b87fc42119472b2dc9485ddd02b7917eceb135a687d6c4a74c","source":{"kind":"arxiv","id":"1804.10736","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.10736","created_at":"2026-05-18T00:13:44Z"},{"alias_kind":"arxiv_version","alias_value":"1804.10736v3","created_at":"2026-05-18T00:13:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.10736","created_at":"2026-05-18T00:13:44Z"},{"alias_kind":"pith_short_12","alias_value":"3KNVXAEFDHJL","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3KNVXAEFDHJLQ76E","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3KNVXAEF","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3KNVXAEFDHJLQ76EEEMUOKZNZF","target":"record","payload":{"canonical_record":{"source":{"id":"1804.10736","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-04-28T03:54:06Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"58059e61c8c483f69b3d9e618183b72892bd522cd6be57f5dd2c2837c9a1321f","abstract_canon_sha256":"c2dd82048f4a3512d935d8962a23e359cbb96bd0863f5808aa2eaf21d07897e8"},"schema_version":"1.0"},"canonical_sha256":"da9b5b808519d2b87fc42119472b2dc9485ddd02b7917eceb135a687d6c4a74c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:13:44.339772Z","signature_b64":"brVjIeaLo0A/ig3nGiDO8z1aXd3eM6FPcx1ynG4IDNOI4awOw29/+H9WtYRXPx+gk7F+LupC/wDK2XU49LXzCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da9b5b808519d2b87fc42119472b2dc9485ddd02b7917eceb135a687d6c4a74c","last_reissued_at":"2026-05-18T00:13:44.339026Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:13:44.339026Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.10736","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:13:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mA+Y1wUR0cUo6X++DQ1/YlALhZTgb67tVdk5rtwI6sNo8xIm+w5Xj4rK+9ljR0Vr0qKdtaMg9iHY5tf8zG8vCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T08:04:25.469492Z"},"content_sha256":"24c44f1a6420b307a894a305b0d74cfac456c1c513a89278e6a295af7cea479c","schema_version":"1.0","event_id":"sha256:24c44f1a6420b307a894a305b0d74cfac456c1c513a89278e6a295af7cea479c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3KNVXAEFDHJLQ76EEEMUOKZNZF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accelerating vapor condensation with daytime radiative cooling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.app-ph","authors_text":"Alireza Shahsafi, Boon S. Ooi, Haomin Song, Jia Zhu, Mikhail Kats, Ming Zhou, Qiaoqiang Gan, Xingyu Xu, Zhenqiang Ma, Zhenyang Xia, Zongfu Yu","submitted_at":"2018-04-28T03:54:06Z","abstract_excerpt":"Vapor condensation plays a crucial role in solar water-purification technologies. Conventional condensers in solar water-purification systems do not provide sufficient cooling power for vapor condensation, limiting the water production rate to $0.4 L m^{-2} hour^{-1}$. On the other hand, radiative dew condensation, a technique used by existing radiative dew condensers, only works at nighttime and is incompatible with solar water-purification technologies. Here, we develop daytime radiative condensers that reflect almost all solar radiation, and can thus create dew water even in direct sunlight"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.10736","kind":"arxiv","version":3},"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":"2026-05-18T00:13:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BEFwfcAi6T2ZMOgDO/q6b/6mtPxR8SWZ1ZhUi29xPR0CLvL/cfEGJqviq6q7NE+kqSHBvvs1OeJY7/s5/vomBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T08:04:25.469878Z"},"content_sha256":"8705a61674b6ee543c1adac9c9c57c6c803235ffccd2448d50dc57302371b736","schema_version":"1.0","event_id":"sha256:8705a61674b6ee543c1adac9c9c57c6c803235ffccd2448d50dc57302371b736"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3KNVXAEFDHJLQ76EEEMUOKZNZF/bundle.json","state_url":"https://pith.science/pith/3KNVXAEFDHJLQ76EEEMUOKZNZF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3KNVXAEFDHJLQ76EEEMUOKZNZF/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":"2026-05-20T08:04:25Z","links":{"resolver":"https://pith.science/pith/3KNVXAEFDHJLQ76EEEMUOKZNZF","bundle":"https://pith.science/pith/3KNVXAEFDHJLQ76EEEMUOKZNZF/bundle.json","state":"https://pith.science/pith/3KNVXAEFDHJLQ76EEEMUOKZNZF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3KNVXAEFDHJLQ76EEEMUOKZNZF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3KNVXAEFDHJLQ76EEEMUOKZNZF","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":"c2dd82048f4a3512d935d8962a23e359cbb96bd0863f5808aa2eaf21d07897e8","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-04-28T03:54:06Z","title_canon_sha256":"58059e61c8c483f69b3d9e618183b72892bd522cd6be57f5dd2c2837c9a1321f"},"schema_version":"1.0","source":{"id":"1804.10736","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.10736","created_at":"2026-05-18T00:13:44Z"},{"alias_kind":"arxiv_version","alias_value":"1804.10736v3","created_at":"2026-05-18T00:13:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.10736","created_at":"2026-05-18T00:13:44Z"},{"alias_kind":"pith_short_12","alias_value":"3KNVXAEFDHJL","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3KNVXAEFDHJLQ76E","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3KNVXAEF","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:8705a61674b6ee543c1adac9c9c57c6c803235ffccd2448d50dc57302371b736","target":"graph","created_at":"2026-05-18T00:13:44Z","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":"Vapor condensation plays a crucial role in solar water-purification technologies. Conventional condensers in solar water-purification systems do not provide sufficient cooling power for vapor condensation, limiting the water production rate to $0.4 L m^{-2} hour^{-1}$. On the other hand, radiative dew condensation, a technique used by existing radiative dew condensers, only works at nighttime and is incompatible with solar water-purification technologies. Here, we develop daytime radiative condensers that reflect almost all solar radiation, and can thus create dew water even in direct sunlight","authors_text":"Alireza Shahsafi, Boon S. Ooi, Haomin Song, Jia Zhu, Mikhail Kats, Ming Zhou, Qiaoqiang Gan, Xingyu Xu, Zhenqiang Ma, Zhenyang Xia, Zongfu Yu","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-04-28T03:54:06Z","title":"Accelerating vapor condensation with daytime radiative cooling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.10736","kind":"arxiv","version":3},"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":"sha256:24c44f1a6420b307a894a305b0d74cfac456c1c513a89278e6a295af7cea479c","target":"record","created_at":"2026-05-18T00:13:44Z","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":"c2dd82048f4a3512d935d8962a23e359cbb96bd0863f5808aa2eaf21d07897e8","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-04-28T03:54:06Z","title_canon_sha256":"58059e61c8c483f69b3d9e618183b72892bd522cd6be57f5dd2c2837c9a1321f"},"schema_version":"1.0","source":{"id":"1804.10736","kind":"arxiv","version":3}},"canonical_sha256":"da9b5b808519d2b87fc42119472b2dc9485ddd02b7917eceb135a687d6c4a74c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da9b5b808519d2b87fc42119472b2dc9485ddd02b7917eceb135a687d6c4a74c","first_computed_at":"2026-05-18T00:13:44.339026Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:44.339026Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"brVjIeaLo0A/ig3nGiDO8z1aXd3eM6FPcx1ynG4IDNOI4awOw29/+H9WtYRXPx+gk7F+LupC/wDK2XU49LXzCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:44.339772Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.10736","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24c44f1a6420b307a894a305b0d74cfac456c1c513a89278e6a295af7cea479c","sha256:8705a61674b6ee543c1adac9c9c57c6c803235ffccd2448d50dc57302371b736"],"state_sha256":"2af1c05f18bcff879fe2e4f7d3adc9d5a11f3f6c4e02db081f1e07e781849801"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DMxQ0TUb5kMyxHMpKupkfh0lxvHNRiHIYVeT/mqQxRLxJIMbMc8Md5NDhas0sLp1WJ4dCKZqVbWooghPWuNuBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T08:04:25.471872Z","bundle_sha256":"0ce1bb62340995ae76301934cf47a55293dfc12499c38c4177c7c0fbb67ca83a"}}