Mads Nilsson
type: MusicGroup
popularity: 6
followers: 105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82ab9e2c0687a761c20b8c1b60fd5002a3a7fc369aac1009e0ef09c51b3be257
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/104b9b5f-a6f3-427e-8769-3792b6e6d047.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/104b9b5f-a6f3-427e-8769-3792b6e6d047.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/104b9b5f-a6f3-427e-8769-3792b6e6d047
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x82ab9e2c0687a761c20b8c1b60fd5002a3a7fc369aac1009e0ef09c51b3be257","name":"Mads Nilsson","registered_at":"2026-06-15T19:16:57Z","symbol":"NIM0805852","token_address":"0x6e75fe8e60131d9bd61c082dcb3441432fba2ac1","type":"artist","uuid":"104b9b5f-a6f3-427e-8769-3792b6e6d047"}
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 0x82ab9e2c0687a761c20b8c1b60fd5002a3a7fc369aac1009e0ef09c51b3be257. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/104b9b5f-a6f3-427e-8769-3792b6e6d047.json and https://artists.proofprofile.net/proofs/artist/104b9b5f-a6f3-427e-8769-3792b6e6d047.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x82ab9e2c0687a761c20b8c1b60fd5002a3a7fc369aac1009e0ef09c51b3be257","name":"Mads Nilsson","registered_at":"2026-06-15T19:16:57Z","symbol":"NIM0805852","token_address":"0x6e75fe8e60131d9bd61c082dcb3441432fba2ac1","type":"artist","uuid":"104b9b5f-a6f3-427e-8769-3792b6e6d047"}