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 0xa3d3e16b5955f08c6997de508c6a11ff9ca9586adbb42e527c07a58cec71dd07. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dffecab-e166-48d4-a893-105f0f04952d.json and https://artists.proofprofile.net/proofs/artist/5dffecab-e166-48d4-a893-105f0f04952d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Warrior (Remastered) [feat. Margaret Singana]
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 0xf3167bc546557f1e5cd541740a43196234c7daaecb26a35d00f472b4c67ff1ac. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ZA95S1400001.
Mama Tembu's Wedding (Remastered) [feat. Margaret Singana]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4606666128a4bb2ce207f45b7d40dc227d0723a0907e47fb6be96407fbbfd18. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:38Z), 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/ZA95S1400004.
Ipi 'ntombi (Remastered) [feat. Margaret Singana]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998ea5849504312311a8908dca2e5b73e183a1ea9eb95218f47b503185e7310a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ZA95S1400006.
Soweto By Night (Remastered) [feat. Margaret Singana]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5853b3b4bd32efccca15e2e906e6b5a6f8aeaccbfeab95c49680f04f1a51fe04. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ZA95S1400007.