GR lean
type: MusicGroup
popularity: 13
followers: 156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6f4cc8793ccfdd32fe75f07c7bf86d8d468a3dcdcc6d7eb2ee6ba240f84dc20
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953626
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953626
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f2305cc-c23c-44c8-ac08-8d74cfa4ad28.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f2305cc-c23c-44c8-ac08-8d74cfa4ad28.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2f2305cc-c23c-44c8-ac08-8d74cfa4ad28
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:41:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe6f4cc8793ccfdd32fe75f07c7bf86d8d468a3dcdcc6d7eb2ee6ba240f84dc20","name":"GR lean","registered_at":"2026-06-14T09:24:03Z","symbol":"NIM0409031","token_address":"0x52c95d30f41028173536b947005654fc28b89f07","type":"artist","uuid":"2f2305cc-c23c-44c8-ac08-8d74cfa4ad28"}
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 0xe6f4cc8793ccfdd32fe75f07c7bf86d8d468a3dcdcc6d7eb2ee6ba240f84dc20. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f2305cc-c23c-44c8-ac08-8d74cfa4ad28.json and https://artists.proofprofile.net/proofs/artist/2f2305cc-c23c-44c8-ac08-8d74cfa4ad28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0xe6f4cc8793ccfdd32fe75f07c7bf86d8d468a3dcdcc6d7eb2ee6ba240f84dc20","name":"GR lean","registered_at":"2026-06-14T09:24:03Z","symbol":"NIM0409031","token_address":"0x52c95d30f41028173536b947005654fc28b89f07","type":"artist","uuid":"2f2305cc-c23c-44c8-ac08-8d74cfa4ad28"}
album: Desapego
  type: MusicAlbum
  date published: 2021-12-11
album: Royal Salute
  type: MusicAlbum
  date published: 2022-09-18