Double M
type: MusicGroup
genre: italo dance
popularity: 21
followers: 332
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0d1ae5ab02267acdaccf04541c223aa47267ee4d42665d151f6886b2724ef68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9b05acd-022f-4361-b1ef-78e0a0edd0d0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9b05acd-022f-4361-b1ef-78e0a0edd0d0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e9b05acd-022f-4361-b1ef-78e0a0edd0d0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd0d1ae5ab02267acdaccf04541c223aa47267ee4d42665d151f6886b2724ef68","name":"Double M","registered_at":"2026-06-12T12:39:09Z","symbol":"NIM0300358","token_address":"0x7e68c868c6c3d1f3862ff070910d26f61ca619ca","type":"artist","uuid":"e9b05acd-022f-4361-b1ef-78e0a0edd0d0"}
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 0xd0d1ae5ab02267acdaccf04541c223aa47267ee4d42665d151f6886b2724ef68. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9b05acd-022f-4361-b1ef-78e0a0edd0d0.json and https://artists.proofprofile.net/proofs/artist/e9b05acd-022f-4361-b1ef-78e0a0edd0d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xd0d1ae5ab02267acdaccf04541c223aa47267ee4d42665d151f6886b2724ef68","name":"Double M","registered_at":"2026-06-12T12:39:09Z","symbol":"NIM0300358","token_address":"0x7e68c868c6c3d1f3862ff070910d26f61ca619ca","type":"artist","uuid":"e9b05acd-022f-4361-b1ef-78e0a0edd0d0"}
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