Mark Stereo
type: MusicGroup
popularity: 5
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdaac6b3ad1cb09a5a61c5971af6c3cbad88872ae3577590da9390aa3e3d65de1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fe8ce4c-9eda-4d90-a804-7dd67ab36957.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fe8ce4c-9eda-4d90-a804-7dd67ab36957.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2fe8ce4c-9eda-4d90-a804-7dd67ab36957
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdaac6b3ad1cb09a5a61c5971af6c3cbad88872ae3577590da9390aa3e3d65de1","name":"Mark Stereo","registered_at":"2026-06-16T06:17:22Z","symbol":"NIM0963504","token_address":"0x59a2e695bf156a5ac525ed30a96c3394d8795283","type":"artist","uuid":"2fe8ce4c-9eda-4d90-a804-7dd67ab36957"}
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 0xdaac6b3ad1cb09a5a61c5971af6c3cbad88872ae3577590da9390aa3e3d65de1. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fe8ce4c-9eda-4d90-a804-7dd67ab36957.json and https://artists.proofprofile.net/proofs/artist/2fe8ce4c-9eda-4d90-a804-7dd67ab36957.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xdaac6b3ad1cb09a5a61c5971af6c3cbad88872ae3577590da9390aa3e3d65de1","name":"Mark Stereo","registered_at":"2026-06-16T06:17:22Z","symbol":"NIM0963504","token_address":"0x59a2e695bf156a5ac525ed30a96c3394d8795283","type":"artist","uuid":"2fe8ce4c-9eda-4d90-a804-7dd67ab36957"}