Sofia Portela
type: MusicGroup
popularity: 2
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b42e7b51daa4f9c143af6972ee786031b2739d4cadf970c0077944e48f51bdf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb3dc5b0-ae5b-479e-9b05-3658d2f8a1b9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb3dc5b0-ae5b-479e-9b05-3658d2f8a1b9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb3dc5b0-ae5b-479e-9b05-3658d2f8a1b9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8b42e7b51daa4f9c143af6972ee786031b2739d4cadf970c0077944e48f51bdf","name":"Sofia Portela","registered_at":"2026-06-20T23:06:41Z","symbol":"NIM1743829","token_address":"0x02936d94f47bd110f92f7469ba9ca5a070003567","type":"artist","uuid":"cb3dc5b0-ae5b-479e-9b05-3658d2f8a1b9"}
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 0x8b42e7b51daa4f9c143af6972ee786031b2739d4cadf970c0077944e48f51bdf. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb3dc5b0-ae5b-479e-9b05-3658d2f8a1b9.json and https://artists.proofprofile.net/proofs/artist/cb3dc5b0-ae5b-479e-9b05-3658d2f8a1b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x8b42e7b51daa4f9c143af6972ee786031b2739d4cadf970c0077944e48f51bdf","name":"Sofia Portela","registered_at":"2026-06-20T23:06:41Z","symbol":"NIM1743829","token_address":"0x02936d94f47bd110f92f7469ba9ca5a070003567","type":"artist","uuid":"cb3dc5b0-ae5b-479e-9b05-3658d2f8a1b9"}
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  type: MusicAlbum
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  type: MusicAlbum
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