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 0x00de21c85c787912e8a72cd9f1b3957f59bbecbf5a4c4ad3835b4abff01b20d7. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddee591b-5fd8-4ef6-87fb-67498f51f409.json and https://artists.proofprofile.net/proofs/artist/ddee591b-5fd8-4ef6-87fb-67498f51f409.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Senizwile Kerh (feat. StokieNChilli, SHORTGUN & Lorenzo)
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 0x244cbdf98d3d42b66f88499610989e7549de1e5d347e7242a36b5911408e3085. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:29Z), 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/ZA56E2419791.
Achuz Mahn (feat. Fezela Mshini, Ta_x_Rsa, Mfana Ka Gogo, Delasmg & Dr Flacko)
BEBETHINI (feat. Kwesta, Malume Hypeman, W4DE & RIVALZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd4596270a86fa866fd25234b934ef764a3ed1c090d8ef69777d6c4919036d2. 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/ZA56E2416116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc887c7907f05876d1af3975669daf438c217026a5537b0c2002e4bc7affb014. 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/DGA0R2413507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b36615b657c8869aff73d6da4e14f070cfeb2d894ee894db69fa3d34943f72. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA0R2413513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133f24953218fc6aeef2a1f0ef847245ddc5769e2ccdbc289a07911e9664cfca. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DGA0R2413514.