Berta Pereira Majó (born June 10, 1958) is a Uruguayan percussionist, dancer, and actor who specializes in Afro-Uruguayan themes. In 1995, she founded the group Berta Pereira y las Comadres, which foc
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 0x2aa27ec2cff4d0bc4a106978a9adcd93c0a16a55801a8af4582a50df6b434376. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40cdda9a-7231-48da-b9a3-90b39f88606f.json and https://artists.proofprofile.net/proofs/artist/40cdda9a-7231-48da-b9a3-90b39f88606f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).