Metrö258
type: MusicGroup
popularity: 6
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62dcd7f9ee31365f8641d52bb9afba47b24a8b2c11e6c13bd3bfc49994c5e274
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4de426dc-f3e1-4eb2-805d-b0ae5a376933.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4de426dc-f3e1-4eb2-805d-b0ae5a376933.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4de426dc-f3e1-4eb2-805d-b0ae5a376933
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x62dcd7f9ee31365f8641d52bb9afba47b24a8b2c11e6c13bd3bfc49994c5e274","name":"Metrö258","registered_at":"2026-06-16T16:39:34Z","symbol":"NIM1111976","token_address":"0x3d19b11293c477ab062a0754d44f0ad1e1071a07","type":"artist","uuid":"4de426dc-f3e1-4eb2-805d-b0ae5a376933"}
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 0x62dcd7f9ee31365f8641d52bb9afba47b24a8b2c11e6c13bd3bfc49994c5e274. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4de426dc-f3e1-4eb2-805d-b0ae5a376933.json and https://artists.proofprofile.net/proofs/artist/4de426dc-f3e1-4eb2-805d-b0ae5a376933.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x62dcd7f9ee31365f8641d52bb9afba47b24a8b2c11e6c13bd3bfc49994c5e274","name":"Metrö258","registered_at":"2026-06-16T16:39:34Z","symbol":"NIM1111976","token_address":"0x3d19b11293c477ab062a0754d44f0ad1e1071a07","type":"artist","uuid":"4de426dc-f3e1-4eb2-805d-b0ae5a376933"}
album: Heaven
  type: MusicAlbum
  date published: 2024-01-15
album: Lonely
  type: MusicAlbum
  date published: 2024-04-09
album: LAST TEARS
  type: MusicAlbum
  date published: 2024-05-11
album: FAITH
  type: MusicAlbum
  date published: 2024-11-22
album: ASIJABULEN
  type: MusicAlbum
  date published: 2025-04-05
album: REFRÕES DE TRISTEZA
  type: MusicAlbum
  date published: 2025-08-07
album: PROMISES
  type: MusicAlbum
  date published: 2025-08-08
album: JÚLIA
  type: MusicAlbum
  date published: 2025-08-08
album: JANETTE
  type: MusicAlbum
  date published: 2025-08-23