{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:XHF6YLCKCFVBGBNO25RHW4Z6Y2","short_pith_number":"pith:XHF6YLCK","canonical_record":{"source":{"id":"1211.0653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-04T00:20:19Z","cross_cats_sorted":[],"title_canon_sha256":"68d833af9d545b01fb793aa2fbb4087eb9c79627bdabf760954286912ec4b78c","abstract_canon_sha256":"b222e2ab6371f04a23f8a1e60574326100e98411ee1a6f4756414087b131be2d"},"schema_version":"1.0"},"canonical_sha256":"b9cbec2c4a116a1305aed7627b733ec6b37003a64e3407d31e2cf1567bd446d2","source":{"kind":"arxiv","id":"1211.0653","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.0653","created_at":"2026-05-18T03:41:32Z"},{"alias_kind":"arxiv_version","alias_value":"1211.0653v1","created_at":"2026-05-18T03:41:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.0653","created_at":"2026-05-18T03:41:32Z"},{"alias_kind":"pith_short_12","alias_value":"XHF6YLCKCFVB","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XHF6YLCKCFVBGBNO","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XHF6YLCK","created_at":"2026-05-18T12:27:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:XHF6YLCKCFVBGBNO25RHW4Z6Y2","target":"record","payload":{"canonical_record":{"source":{"id":"1211.0653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-04T00:20:19Z","cross_cats_sorted":[],"title_canon_sha256":"68d833af9d545b01fb793aa2fbb4087eb9c79627bdabf760954286912ec4b78c","abstract_canon_sha256":"b222e2ab6371f04a23f8a1e60574326100e98411ee1a6f4756414087b131be2d"},"schema_version":"1.0"},"canonical_sha256":"b9cbec2c4a116a1305aed7627b733ec6b37003a64e3407d31e2cf1567bd446d2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:32.907063Z","signature_b64":"mpKeg/daMnopOcJnZs/217Nh36h6oTNxPkJmj0U+cxvZwSnRvRpHcWj0GPUIdOg9ddt9Ko5lh5j0qfgfDr9QDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9cbec2c4a116a1305aed7627b733ec6b37003a64e3407d31e2cf1567bd446d2","last_reissued_at":"2026-05-18T03:41:32.906355Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:32.906355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.0653","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":"2026-05-18T03:41:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"faf+YCe1dMSdLfGEodW2pBuSsvJq1+RZ36+jLeibJGZs4vRdhlnaGn54q9gJJ3qsu0iDkVpO9CsTNIVFNfGCBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:30:08.683983Z"},"content_sha256":"755ebbca97e8a2c70bd064a134a907ebdde4d72575290fce7774bffa8bdc8849","schema_version":"1.0","event_id":"sha256:755ebbca97e8a2c70bd064a134a907ebdde4d72575290fce7774bffa8bdc8849"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:XHF6YLCKCFVBGBNO25RHW4Z6Y2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermal extraction: enhancing thermal emission of finite size macroscopic blackbody to far-field vacuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Hailiang Wang, Nicholas Sergeant, Shanhui Fan, Torbjorn Skauli Gang Zhang, Zongfu Yu","submitted_at":"2012-11-04T00:20:19Z","abstract_excerpt":"The understanding of far-field thermal radiation had directly led to the discovery of quantum mechanics a century ago, and is of great current practical importance for applications in energy conversions, radiative cooling, and thermal control. It is commonly assumed that for any macroscopic thermal emitter, its maximal emitted power within any given frequency range cannot exceed that of a blackbody with the same surface area. In contrast to such conventional wisdom, here we propose, and experimentally demonstrate, that the emitted power from a finite size macroscopic blackbody to far field vac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.0653","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":"2026-05-18T03:41:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3yDpbx0s8dmAVZ2Eh3qOmebNU8MqEWwLQwrWuwE1M6Sw4oWp9Vh0Madk19qELwARN1Yz8+KODbvzujFgNDspCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:30:08.684384Z"},"content_sha256":"58ff876978323aab69319a994bd80ab1bc31d24d01470a03c46768eabd4bc005","schema_version":"1.0","event_id":"sha256:58ff876978323aab69319a994bd80ab1bc31d24d01470a03c46768eabd4bc005"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHF6YLCKCFVBGBNO25RHW4Z6Y2/bundle.json","state_url":"https://pith.science/pith/XHF6YLCKCFVBGBNO25RHW4Z6Y2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHF6YLCKCFVBGBNO25RHW4Z6Y2/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":"2026-05-26T04:30:08Z","links":{"resolver":"https://pith.science/pith/XHF6YLCKCFVBGBNO25RHW4Z6Y2","bundle":"https://pith.science/pith/XHF6YLCKCFVBGBNO25RHW4Z6Y2/bundle.json","state":"https://pith.science/pith/XHF6YLCKCFVBGBNO25RHW4Z6Y2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHF6YLCKCFVBGBNO25RHW4Z6Y2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:XHF6YLCKCFVBGBNO25RHW4Z6Y2","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":"b222e2ab6371f04a23f8a1e60574326100e98411ee1a6f4756414087b131be2d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-04T00:20:19Z","title_canon_sha256":"68d833af9d545b01fb793aa2fbb4087eb9c79627bdabf760954286912ec4b78c"},"schema_version":"1.0","source":{"id":"1211.0653","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.0653","created_at":"2026-05-18T03:41:32Z"},{"alias_kind":"arxiv_version","alias_value":"1211.0653v1","created_at":"2026-05-18T03:41:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.0653","created_at":"2026-05-18T03:41:32Z"},{"alias_kind":"pith_short_12","alias_value":"XHF6YLCKCFVB","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XHF6YLCKCFVBGBNO","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XHF6YLCK","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:58ff876978323aab69319a994bd80ab1bc31d24d01470a03c46768eabd4bc005","target":"graph","created_at":"2026-05-18T03:41:32Z","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 understanding of far-field thermal radiation had directly led to the discovery of quantum mechanics a century ago, and is of great current practical importance for applications in energy conversions, radiative cooling, and thermal control. It is commonly assumed that for any macroscopic thermal emitter, its maximal emitted power within any given frequency range cannot exceed that of a blackbody with the same surface area. In contrast to such conventional wisdom, here we propose, and experimentally demonstrate, that the emitted power from a finite size macroscopic blackbody to far field vac","authors_text":"Hailiang Wang, Nicholas Sergeant, Shanhui Fan, Torbjorn Skauli Gang Zhang, Zongfu Yu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-04T00:20:19Z","title":"Thermal extraction: enhancing thermal emission of finite size macroscopic blackbody to far-field vacuum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.0653","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":"sha256:755ebbca97e8a2c70bd064a134a907ebdde4d72575290fce7774bffa8bdc8849","target":"record","created_at":"2026-05-18T03:41:32Z","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":"b222e2ab6371f04a23f8a1e60574326100e98411ee1a6f4756414087b131be2d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-04T00:20:19Z","title_canon_sha256":"68d833af9d545b01fb793aa2fbb4087eb9c79627bdabf760954286912ec4b78c"},"schema_version":"1.0","source":{"id":"1211.0653","kind":"arxiv","version":1}},"canonical_sha256":"b9cbec2c4a116a1305aed7627b733ec6b37003a64e3407d31e2cf1567bd446d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9cbec2c4a116a1305aed7627b733ec6b37003a64e3407d31e2cf1567bd446d2","first_computed_at":"2026-05-18T03:41:32.906355Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:32.906355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mpKeg/daMnopOcJnZs/217Nh36h6oTNxPkJmj0U+cxvZwSnRvRpHcWj0GPUIdOg9ddt9Ko5lh5j0qfgfDr9QDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:32.907063Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.0653","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:755ebbca97e8a2c70bd064a134a907ebdde4d72575290fce7774bffa8bdc8849","sha256:58ff876978323aab69319a994bd80ab1bc31d24d01470a03c46768eabd4bc005"],"state_sha256":"18a025223980d47a475559bdc681b8669eb9f1e9fa677e026f102886ad6499d9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X0z+ZA2F3FzNaCbjrpgt56ufyO7memuQXNRIFWqTv9SLMTOh13BbO9Glj/4foAq6OGMnIwX5H3pEOpQWtFhnCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T04:30:08.687012Z","bundle_sha256":"dffcb9a188c851ca9e1efbf8fe4ddbd503ec954ce0fdab0c1891ad57d410d225"}}