Mackenzie Testa
type: MusicGroup
popularity: 2
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x540b2e29f4811b6be8f9fb01d18fa178c0c62daf50aed7045e64f4b1269612fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a6641faa-1964-471c-a528-50e92a137207.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a6641faa-1964-471c-a528-50e92a137207.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a6641faa-1964-471c-a528-50e92a137207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x540b2e29f4811b6be8f9fb01d18fa178c0c62daf50aed7045e64f4b1269612fa","name":"Mackenzie Testa","registered_at":"2026-06-20T07:57:43Z","symbol":"NIM1558564","token_address":"0x0563f56615f7a0c2f2f25eebdcc3b76ed5245f1c","type":"artist","uuid":"a6641faa-1964-471c-a528-50e92a137207"}
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 0x540b2e29f4811b6be8f9fb01d18fa178c0c62daf50aed7045e64f4b1269612fa. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6641faa-1964-471c-a528-50e92a137207.json and https://artists.proofprofile.net/proofs/artist/a6641faa-1964-471c-a528-50e92a137207.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x540b2e29f4811b6be8f9fb01d18fa178c0c62daf50aed7045e64f4b1269612fa","name":"Mackenzie Testa","registered_at":"2026-06-20T07:57:43Z","symbol":"NIM1558564","token_address":"0x0563f56615f7a0c2f2f25eebdcc3b76ed5245f1c","type":"artist","uuid":"a6641faa-1964-471c-a528-50e92a137207"}
album: I Only Want You
  type: MusicAlbum
  date published: 2016-10-28
album: Temporary Lovers
  type: MusicAlbum
  date published: 2017-01-27
album: My Time
  type: MusicAlbum
  date published: 2018-07-14
album: Who Do You Love
  type: MusicAlbum
  date published: 2019-12-07
album: feel it twice
  type: MusicAlbum
  date published: 2024-01-19
album: feel it twice (remixes)
  type: MusicAlbum
  date published: 2024-01-26
album: Touch
  type: MusicAlbum
  date published: 2024-07-26