concrete concrete
type: MusicGroup
genre: math rock
popularity: 4
followers: 1922
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa6254b59434387da18369defe14417ab8d84b6376b099137f55fb44bc142e39
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953857
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0233db78-74eb-46ff-a497-6cb9c9a66eb7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0233db78-74eb-46ff-a497-6cb9c9a66eb7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0233db78-74eb-46ff-a497-6cb9c9a66eb7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:34:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa6254b59434387da18369defe14417ab8d84b6376b099137f55fb44bc142e39","name":"concrete concrete","registered_at":"2026-06-15T14:30:08Z","symbol":"NIM0737400","token_address":"0xf3e7b5bbbaa54af79e939a3f763fbb9056fadad1","type":"artist","uuid":"0233db78-74eb-46ff-a497-6cb9c9a66eb7"}
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 0xfa6254b59434387da18369defe14417ab8d84b6376b099137f55fb44bc142e39. Chain 2 (Bitcoin): anchored in block 953857 (2026-06-15T23:34:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0233db78-74eb-46ff-a497-6cb9c9a66eb7.json and https://artists.proofprofile.net/proofs/artist/0233db78-74eb-46ff-a497-6cb9c9a66eb7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T23:34:38Z
  text: {"copyright_id":"0xfa6254b59434387da18369defe14417ab8d84b6376b099137f55fb44bc142e39","name":"concrete concrete","registered_at":"2026-06-15T14:30:08Z","symbol":"NIM0737400","token_address":"0xf3e7b5bbbaa54af79e939a3f763fbb9056fadad1","type":"artist","uuid":"0233db78-74eb-46ff-a497-6cb9c9a66eb7"}
album: Hues
  type: MusicAlbum
  date published: 2019-06-07
album: Iris Sky
  type: MusicAlbum
  date published: 2019-07-12
album: Drifter
  type: MusicAlbum
  date published: 2019-08-02