Berta Pereira
type: MusicGroup
description: 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
popularity: 3
followers: 423
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2aa27ec2cff4d0bc4a106978a9adcd93c0a16a55801a8af4582a50df6b434376
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954046
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954046
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40cdda9a-7231-48da-b9a3-90b39f88606f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40cdda9a-7231-48da-b9a3-90b39f88606f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/40cdda9a-7231-48da-b9a3-90b39f88606f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:53:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2aa27ec2cff4d0bc4a106978a9adcd93c0a16a55801a8af4582a50df6b434376","name":"Berta Pereira","registered_at":"2026-06-16T12:11:36Z","symbol":"NIM1048047","token_address":"0x9d45d6dac5acea23bcbb9c6c1103f1e41ac7ff67","type":"artist","uuid":"40cdda9a-7231-48da-b9a3-90b39f88606f"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2aa27ec2cff4d0bc4a106978a9adcd93c0a16a55801a8af4582a50df6b434376","name":"Berta Pereira","registered_at":"2026-06-16T12:11:36Z","symbol":"NIM1048047","token_address":"0x9d45d6dac5acea23bcbb9c6c1103f1e41ac7ff67","type":"artist","uuid":"40cdda9a-7231-48da-b9a3-90b39f88606f"}
album: Bicho de Luz
  type: MusicAlbum
  date published: 2000-10-01
album: Gracias
  type: MusicAlbum
  date published: 2015-07-31