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 0x198aa99f3cfc0fea544738903c734540614739e9061a1caf53d640523fd7b06b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/809de916-1533-4818-93b0-fdc75b8ed952.json and https://artists.proofprofile.net/proofs/artist/809de916-1533-4818-93b0-fdc75b8ed952.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sound For Production Olympic Game Attitude
Sound For Production Profound Tranquillity
Sound For Production Electro Trendy Fresh
Sound For Production Electro Drop Signal
Sound For Production Christmas Greetings
Sound For Production: Hard Rock Possession
Sound For Production - Rock in Mozzarella
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 0xaa3366f4f3936ed362e1d076d1683cb5fac20762f773b938d4891f96497c366f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USLZJ1689589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400ae7c642256d16203581f43387a05568eebbf700f0d32636aed4992ed9258a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZS1Z1608230.
Sound For Production African Beats, Vol. 1
Sound For Production Hip Hop Beats, Vol. 3
Sound For Production Hip Hop Beats, Vol. 4
Sound For Production Hip Hop Beats, Vol. 2
Sound For Production Hip Hop Beats, Vol. 1
Sound For Production Ambient Beats, Vol. 2
Sound For Production Ambient Beats, Vol. 1
Sound For Production: Ambient Beats, Vol. 3
Sound For Production Ethnic Beats, Vol. 3
Sound For Production Ethnic Beats, Vol. 2
Sound For Production Bossa Guitar, Vol. 1
Sound For Production Folk Guitar, Vol. 5
Sound For Production Funk Guitar, Vol. 3
Sound For Production Drum Beats, Vol. 11
Sound For Production Drum Beats, Vol. 10