Sorry Holka
type: MusicGroup
popularity: 5
followers: 469
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7963030d7e520a49f75313b9edd93f494f0afd50fcbb5eae816feb2b4c46ba7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b084603f-4185-4a36-b4b3-edcb58d29d4b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b084603f-4185-4a36-b4b3-edcb58d29d4b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b084603f-4185-4a36-b4b3-edcb58d29d4b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd7963030d7e520a49f75313b9edd93f494f0afd50fcbb5eae816feb2b4c46ba7","name":"Sorry Holka","registered_at":"2026-06-20T12:04:03Z","symbol":"NIM1608750","token_address":"0x3fa60f8a2651b1b926f62e7a89bd27c0b1cc4c10","type":"artist","uuid":"b084603f-4185-4a36-b4b3-edcb58d29d4b"}
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 0xd7963030d7e520a49f75313b9edd93f494f0afd50fcbb5eae816feb2b4c46ba7. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b084603f-4185-4a36-b4b3-edcb58d29d4b.json and https://artists.proofprofile.net/proofs/artist/b084603f-4185-4a36-b4b3-edcb58d29d4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xd7963030d7e520a49f75313b9edd93f494f0afd50fcbb5eae816feb2b4c46ba7","name":"Sorry Holka","registered_at":"2026-06-20T12:04:03Z","symbol":"NIM1608750","token_address":"0x3fa60f8a2651b1b926f62e7a89bd27c0b1cc4c10","type":"artist","uuid":"b084603f-4185-4a36-b4b3-edcb58d29d4b"}
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  type: MusicAlbum
  date published: 2015-11-23
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