Ethar Akhtaruzzaman
type: MusicGroup
popularity: 4
followers: 217
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3415c01cfd6a161ee395f29344bc53fcf305fa891222c0c3162b1efd1ccdfb8
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/0f9d5415-f7dc-419a-810c-6b250c96f4fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f9d5415-f7dc-419a-810c-6b250c96f4fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0f9d5415-f7dc-419a-810c-6b250c96f4fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa3415c01cfd6a161ee395f29344bc53fcf305fa891222c0c3162b1efd1ccdfb8","name":"Ethar Akhtaruzzaman","registered_at":"2026-06-15T18:58:00Z","symbol":"NIM0801336","token_address":"0xd29baa75b7b55a4dcefc269c23716f2130c930b1","type":"artist","uuid":"0f9d5415-f7dc-419a-810c-6b250c96f4fa"}
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 0xa3415c01cfd6a161ee395f29344bc53fcf305fa891222c0c3162b1efd1ccdfb8. 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/0f9d5415-f7dc-419a-810c-6b250c96f4fa.json and https://artists.proofprofile.net/proofs/artist/0f9d5415-f7dc-419a-810c-6b250c96f4fa.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xa3415c01cfd6a161ee395f29344bc53fcf305fa891222c0c3162b1efd1ccdfb8","name":"Ethar Akhtaruzzaman","registered_at":"2026-06-15T18:58:00Z","symbol":"NIM0801336","token_address":"0xd29baa75b7b55a4dcefc269c23716f2130c930b1","type":"artist","uuid":"0f9d5415-f7dc-419a-810c-6b250c96f4fa"}
album: Backspace
  type: MusicAlbum
  date published: 2021-10-19
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  type: MusicAlbum
  date published: 2023-07-14
album: Circle of Pain, Vol. 1.1
  type: MusicAlbum
  date published: 2024-06-21
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  type: MusicAlbum
  date published: 2025-01-21