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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196ae874ec8b5bba0a4ac1573baf3e8d53e0a7a9a724ed383e7c4880b82773ad. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50850a0a-b961-4096-b729-74a0f87686be.json and https://artists.proofprofile.net/proofs/artist/50850a0a-b961-4096-b729-74a0f87686be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1928 / 808 INSTRUMENTAL HIP HOP RAP BEAT (DAGA BEATMAKER)
Boom Bap Beat "Dark Fantasy" Dark Hard Beat
Boom Bap Beat (Three Questions) Type Beat
Ready To Battle (90s Old School Boom Bap Type Beat)
Boom Bap Type Beat "ARE YOU STILL TRYING"
Boom Bap Type Beat "Cashing In on Success"
Boom Bap Type Beat "THE MOST UNDERGROUND"
Boom Bap Type Beat "WOULD NO UNDERSTEAND"