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 0xa9cb2435131a69ab77cc52e37603cd01817041b2ed4f51dbeea7a942ca89f67b. 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/f494a1e0-b0e5-42aa-839d-20118262b55d.json and https://artists.proofprofile.net/proofs/artist/f494a1e0-b0e5-42aa-839d-20118262b55d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All She Wants Is - US Master Mix; 1999 Remaster
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 0xc7c75197e54a8b4950b7e4521cd085c18c3b9e93bfb7aba088c412e9f3b7204d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBAYE9802250.
All She Wants Is - US Master Mix; 2010 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa93536d51bb4880e678aeb4e81a68b6017464671e394229c345d0d435edb4e0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYE1000423.
All She Wants Is - Eurohouse Mix; 2010 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595cd1110b839cb2ab6a37b08ff26b1a07d558b796f27acc4eb068a8abb894e4. 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/GBAYE1000425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf717a66457673e29ce959416af244471f6a69dce5bb82d9bd654651e35692ec6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAJH0400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16596ba027362822718989c33f8d5fbb69b2d94c80eff81cd46f406e29662f9a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBAYE8800445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffa20540680ea4bc4fd415cdfc14a2b448882217de1d2a580140a97006da790. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYE8800306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf717a66457673e29ce959416af244471f6a69dce5bb82d9bd654651e35692ec6. 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/GBAJH0400106.