Svart Crown
type: MusicGroup
genre: black metal
genre: death metal
popularity: 11
followers: 11306
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73cd82ad11ef51bf7fc172429b2fe64342745746b33abf57ddb7fbd1a8cfbfd0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953701
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953701
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/762cb16d-6d52-471e-9b46-105d0553f1bc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/762cb16d-6d52-471e-9b46-105d0553f1bc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/762cb16d-6d52-471e-9b46-105d0553f1bc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:16:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73cd82ad11ef51bf7fc172429b2fe64342745746b33abf57ddb7fbd1a8cfbfd0","name":"Svart Crown","registered_at":"2026-06-14T16:53:43Z","symbol":"NIM0516323","token_address":"0x28c0be07b52267c121670ab6599b46730ba915d7","type":"artist","uuid":"762cb16d-6d52-471e-9b46-105d0553f1bc"}
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 0x73cd82ad11ef51bf7fc172429b2fe64342745746b33abf57ddb7fbd1a8cfbfd0. 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/762cb16d-6d52-471e-9b46-105d0553f1bc.json and https://artists.proofprofile.net/proofs/artist/762cb16d-6d52-471e-9b46-105d0553f1bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x73cd82ad11ef51bf7fc172429b2fe64342745746b33abf57ddb7fbd1a8cfbfd0","name":"Svart Crown","registered_at":"2026-06-14T16:53:43Z","symbol":"NIM0516323","token_address":"0x28c0be07b52267c121670ab6599b46730ba915d7","type":"artist","uuid":"762cb16d-6d52-471e-9b46-105d0553f1bc"}
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