1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x89d5ef789c09820a3992a2304f9abf9d06b624848757186e27c97671bdfdeef6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccd2d361-38d2-4705-90ec-3c5841102809.json and https://artists.proofprofile.net/proofs/artist/ccd2d361-38d2-4705-90ec-3c5841102809.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mic Check Yo! - Bruno Be & Jean Bacarreza Remix
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15ce30aee3f3c398184a46c900d141c3bb3d73b57e63ed8c755d1e0409f765d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6E3JBA2lYYUG3Iaj1Yy9TW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6E3JBA2lYYUG3Iaj1Yy9TW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e752211cc625ecab4d396b0dba2235a79c24703248bcd4639acd06b801e0c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1VXpkQJSOqFisD32lTPzx7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1VXpkQJSOqFisD32lTPzx7.
{"copyright_id":"0xd65ed5d32eede9a06a2b38dd214c5bb8cf44dde95f9806268441d7778e58178c","isrc":"GBLV62422639","name":"Headbangin' Shhh","registered_at":"2026-06-23T15:26:51Z","spotify_id":"2yuiRToYxckWAr6mGcDV7z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65ed5d32eede9a06a2b38dd214c5bb8cf44dde95f9806268441d7778e58178c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2yuiRToYxckWAr6mGcDV7z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2yuiRToYxckWAr6mGcDV7z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e752211cc625ecab4d396b0dba2235a79c24703248bcd4639acd06b801e0c7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/74D94ev8JfRHido3SgzqWL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/74D94ev8JfRHido3SgzqWL.
{"copyright_id":"0x691d0b0570f14dcc6aa38c498fbd76780f5e7925d09f0ff6ba0da0deae6ffe46","isrc":"QM4TX1854738","name":"Blue Sky","registered_at":"2026-06-24T14:14:07Z","spotify_id":"7zPFDa6qgLzGF2tBpLbwlK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691d0b0570f14dcc6aa38c498fbd76780f5e7925d09f0ff6ba0da0deae6ffe46. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7zPFDa6qgLzGF2tBpLbwlK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7zPFDa6qgLzGF2tBpLbwlK.
THE BIG HOUSE BANG!, Vol. 8 - 60 House Monsters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1136a425597415e94073846a502e399cb4c8c665b0daaa6ff183be43aa3170aa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1wbqWhsSzGBXtYeO40L5M1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1wbqWhsSzGBXtYeO40L5M1.
House Invaders - Pure House Music, Vol. 4.3