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 0x51a251bbe1bdfa09aa6a7a1902fb73d0a809fff7b0e40a31148c1f931a950fc9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c45e26fe-2086-459a-97c3-8a7d28e7d380.json and https://artists.proofprofile.net/proofs/artist/c45e26fe-2086-459a-97c3-8a7d28e7d380.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 0x8cad3eba795bcf6b06725ba0d24aaec4ee411e55a950fa51745c59f87c979e88. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZHN42199251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3c60bbfb5565967343d5fd58c36c7352070306bdbb00abc6d3f604841f99d7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHZ42150542.
Si Es Trucho Es Trucho (feat. Farruko and El Alfa) [Remix]
Si Es Trucho Es Trucho (feat. Farruko & El Alfa) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b569cb62f7a42d5526ef461f65dbaab4a5debcab953915a7c8cc2f788e5303. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBKPL2173020.
Si Es Trucho Es Trucho (feat. El Alfa & Farruko) [Tiësto Remix]
Si Es Trucho Es Trucho (feat. El Alfa & Farruko) [Tiësto Extended Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668347b2a7ac1ad778e7e39b8854a9169afc7d061130ce474e35e3abddd3cba0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMDA62272283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6de3fe8185843d3195da035f883a136a48ae8e8b20e3b385bf97f152e82f42. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZQAY2368089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc078c9287899d74b68cca1619c6d0829f9b941551075400bf9fa6301e1d0c845. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:55:58Z), 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/QZZ662456906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864e2e06c6801f8a38a74759c4b8bc3b54bddabee7d6f9e46fa538306790c31a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZYFZ2407580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a53ac466a1c52d8d146fd29224debbdc80fd8d30f553aac09d5af15c739009. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2503659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9713d42ee0c3d286d92f4074ecfa0908b26861249dcaf8b20020e4fbc83012c6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWL12402536.