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 0x32ae426b7d53b1f6ff7517321c7ce5dc8340c85d9d7b11b9a391252cf43a7c86. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3727a5b4-bf1a-4f28-bb05-dd7ed9b2f34b.json and https://artists.proofprofile.net/proofs/artist/3727a5b4-bf1a-4f28-bb05-dd7ed9b2f34b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ohthatsmizz BUMBAA ft(Sturdyyougin,Jenn Cater,Swervy) remix challenge
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 0xdd6d8334fc438c62b9cce6faa72d8adf78c0675ed7d60992b8c073cf42c9706f. 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/QZZ7Q2410240.
Ohthatsmizz BUMBAA ft(Sturdyyougin, Datybswervyy)
Joker otv-Switches & Dracs pt2 (ft datybswervyy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb4436009e8e57e3ec6a1e797e4ef35c3d328a68689331947d145b17e5c5d95. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:36:48Z), 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/QZDA52520270.
Touch down 1kracks ft b2thurl datybswervyy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228a5badc115bba00bcd79d337e36ba88dd31cb9026c06cc1fff6a4afd354df8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZES72501818.
2 on kay4ourr ft kid4ourr & datybswervyy
Ohthatsmizz BUMBAA 2 sturdyyoungin(remix challenge)