William Nababan
type: MusicGroup
genre: batak
popularity: 21
followers: 356
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x816ba6c445c6acdb1231210fee36a678c07c24abd04026b8bcc28ce85ec25e6a
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/62cfc013-50e2-4fec-b29b-44a0aeaf26b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/62cfc013-50e2-4fec-b29b-44a0aeaf26b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/62cfc013-50e2-4fec-b29b-44a0aeaf26b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x816ba6c445c6acdb1231210fee36a678c07c24abd04026b8bcc28ce85ec25e6a","name":"William Nababan","registered_at":"2026-06-11T22:52:35Z","symbol":"NIM0127861","token_address":"0xe43c9d5a6617755a2b7558179a48622595a73136","type":"artist","uuid":"62cfc013-50e2-4fec-b29b-44a0aeaf26b4"}
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 0x816ba6c445c6acdb1231210fee36a678c07c24abd04026b8bcc28ce85ec25e6a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62cfc013-50e2-4fec-b29b-44a0aeaf26b4.json and https://artists.proofprofile.net/proofs/artist/62cfc013-50e2-4fec-b29b-44a0aeaf26b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x816ba6c445c6acdb1231210fee36a678c07c24abd04026b8bcc28ce85ec25e6a","name":"William Nababan","registered_at":"2026-06-11T22:52:35Z","symbol":"NIM0127861","token_address":"0xe43c9d5a6617755a2b7558179a48622595a73136","type":"artist","uuid":"62cfc013-50e2-4fec-b29b-44a0aeaf26b4"}
album: Muba Rohakki
  type: MusicAlbum
  date published: 2021-03-19
album: Siingoton Nauli
  type: MusicAlbum
  date published: 2023-07-07