Srdjan Vujic
type: MusicGroup
genre: children's music
popularity: 14
followers: 191
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x770b43bc335ca6f65976e411b8cc89cd2da80fbf99c9e84ef4a94e4ce70f717c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7fb641f7-da15-4125-8ec1-78b4d371bf94.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7fb641f7-da15-4125-8ec1-78b4d371bf94.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7fb641f7-da15-4125-8ec1-78b4d371bf94
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:33:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x770b43bc335ca6f65976e411b8cc89cd2da80fbf99c9e84ef4a94e4ce70f717c","name":"Srdjan Vujic","registered_at":"2026-06-14T17:55:03Z","symbol":"NIM0530919","token_address":"0x46e64e3c3b2e63571b38631f790d338944786022","type":"artist","uuid":"7fb641f7-da15-4125-8ec1-78b4d371bf94"}
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 0x770b43bc335ca6f65976e411b8cc89cd2da80fbf99c9e84ef4a94e4ce70f717c. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fb641f7-da15-4125-8ec1-78b4d371bf94.json and https://artists.proofprofile.net/proofs/artist/7fb641f7-da15-4125-8ec1-78b4d371bf94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x770b43bc335ca6f65976e411b8cc89cd2da80fbf99c9e84ef4a94e4ce70f717c","name":"Srdjan Vujic","registered_at":"2026-06-14T17:55:03Z","symbol":"NIM0530919","token_address":"0x46e64e3c3b2e63571b38631f790d338944786022","type":"artist","uuid":"7fb641f7-da15-4125-8ec1-78b4d371bf94"}