Mariska Setiawan
type: MusicGroup
description: Mariska Setiawan is an Indonesian soprano. She lives in Surabaya. Early life Mariska was born in Surabaya, Indonesia. She has participated in master classes in Indonesia and abroad, working with St
popularity: 6
followers: 144
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7be25f5982e11cfd986c538fb296ef469478ceea658bdf89d08851ffe9f4d114
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7001977-088a-4e88-bfaa-e9a0bf28af3e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7001977-088a-4e88-bfaa-e9a0bf28af3e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7001977-088a-4e88-bfaa-e9a0bf28af3e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7be25f5982e11cfd986c538fb296ef469478ceea658bdf89d08851ffe9f4d114","name":"Mariska Setiawan","registered_at":"2026-06-20T08:20:45Z","symbol":"NIM1563764","token_address":"0x189d9e72a2df89877573bc271e4d0361b10adf9f","type":"artist","uuid":"a7001977-088a-4e88-bfaa-e9a0bf28af3e"}
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 0x7be25f5982e11cfd986c538fb296ef469478ceea658bdf89d08851ffe9f4d114. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7001977-088a-4e88-bfaa-e9a0bf28af3e.json and https://artists.proofprofile.net/proofs/artist/a7001977-088a-4e88-bfaa-e9a0bf28af3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x7be25f5982e11cfd986c538fb296ef469478ceea658bdf89d08851ffe9f4d114","name":"Mariska Setiawan","registered_at":"2026-06-20T08:20:45Z","symbol":"NIM1563764","token_address":"0x189d9e72a2df89877573bc271e4d0361b10adf9f","type":"artist","uuid":"a7001977-088a-4e88-bfaa-e9a0bf28af3e"}
album: Satu / Lonely Girl Live from Studio Sangita
  type: MusicAlbum
  date published: 2021-10-21
album: Rembulan
  type: MusicAlbum
  date published: 2024-09-08