Mamraj Mamu
type: MusicGroup
popularity: 2
followers: 91
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef2cda4572e21636616363681214359d5b5ce58e13395d0f6d767f847e19c1bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17ad4834-4fbf-49a0-a6be-31568d052a68.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17ad4834-4fbf-49a0-a6be-31568d052a68.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/17ad4834-4fbf-49a0-a6be-31568d052a68
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef2cda4572e21636616363681214359d5b5ce58e13395d0f6d767f847e19c1bc","name":"Mamraj Mamu","registered_at":"2026-06-15T21:52:07Z","symbol":"NIM0842852","token_address":"0x93f0c1ac848df7c9c463df4d71befbdf4c8c361b","type":"artist","uuid":"17ad4834-4fbf-49a0-a6be-31568d052a68"}
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 0xef2cda4572e21636616363681214359d5b5ce58e13395d0f6d767f847e19c1bc. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17ad4834-4fbf-49a0-a6be-31568d052a68.json and https://artists.proofprofile.net/proofs/artist/17ad4834-4fbf-49a0-a6be-31568d052a68.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xef2cda4572e21636616363681214359d5b5ce58e13395d0f6d767f847e19c1bc","name":"Mamraj Mamu","registered_at":"2026-06-15T21:52:07Z","symbol":"NIM0842852","token_address":"0x93f0c1ac848df7c9c463df4d71befbdf4c8c361b","type":"artist","uuid":"17ad4834-4fbf-49a0-a6be-31568d052a68"}
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