Hao Yun (; born 23 June 1995 in Hebei) is a Chinese swimmer. At the 2012 Summer Olympics, he competed in the Men's 400 metre freestyle as the only teenager, finishing in 4th place in the final. Perso
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5832d5c071d0b071ec0d8ca7edf8e8c37f11203df8f9ca381cfa3ca0f334aa7e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43233e5c-5be4-4972-b418-897f35a6a4b9.json and https://artists.proofprofile.net/proofs/artist/43233e5c-5be4-4972-b418-897f35a6a4b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be5b4131f5945d876ec271de12ff672524c4434362c74e7067d8c56e61c3eac. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNA651302129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fe926061baf562b0309f2d48a7b238675df4d0b773a73589260bf21312c8ea. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNZ641700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759138afbeb2634f94145d67abdfa57fa3bb8ea970cdf8d0d16174cff014f4c0. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNZ641700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf14384d9925364827bf2608a59c2fca119dbd3252efc629ed1c72cb3b94a0f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNZ641700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437bb724276c53600a522661c61ed176948c45843a1d7dec64d3e3e8520a050e. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CNZ641700017.
回到那一天 (《我和我的祖国》电影插曲版)
2020年 春 (龍雲飛-曠世顏值歐巴練習生組合)
我去 (《我們的滾燙人生》第二季·騎行季第三站推廣曲)
出發 (2023-2024賽季國際雪聯單板及自由式滑雪大跳臺世界盃推廣主題歌)