Xamã
type: MusicGroup
description: Geizon Carlos da Cruz Fernandes (born 30 October 1989), better known by his artistic name Xamã, is a Brazilian rapper, poet and actor. He has released several successful rap albums, with strong sales
popularity: 10
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6dfe4e05a75d429fb1c3de9a8a912c5e2e66b88f57620761d8c09b753c7c2d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b41a757b-4630-46ed-b2e7-39ed9191f365.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b41a757b-4630-46ed-b2e7-39ed9191f365.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b41a757b-4630-46ed-b2e7-39ed9191f365
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa6dfe4e05a75d429fb1c3de9a8a912c5e2e66b88f57620761d8c09b753c7c2d3","name":"Xamã","registered_at":"2026-06-20T13:52:16Z","symbol":"NIM1625953","token_address":"0x4002c581b6b88d508e6653076efcad8ab8ed1891","type":"artist","uuid":"b41a757b-4630-46ed-b2e7-39ed9191f365"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dfe4e05a75d429fb1c3de9a8a912c5e2e66b88f57620761d8c09b753c7c2d3. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b41a757b-4630-46ed-b2e7-39ed9191f365.json and https://artists.proofprofile.net/proofs/artist/b41a757b-4630-46ed-b2e7-39ed9191f365.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0xa6dfe4e05a75d429fb1c3de9a8a912c5e2e66b88f57620761d8c09b753c7c2d3","name":"Xamã","registered_at":"2026-06-20T13:52:16Z","symbol":"NIM1625953","token_address":"0x4002c581b6b88d508e6653076efcad8ab8ed1891","type":"artist","uuid":"b41a757b-4630-46ed-b2e7-39ed9191f365"}