Anna Linden
type: MusicGroup
popularity: 3
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce9e018f4b40f27b704afcbf945d58b0b89c00e3410442e86dd0c9d5385e2d13
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e10b440-8a6b-4866-80cc-5732b1e13dd5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e10b440-8a6b-4866-80cc-5732b1e13dd5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1e10b440-8a6b-4866-80cc-5732b1e13dd5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce9e018f4b40f27b704afcbf945d58b0b89c00e3410442e86dd0c9d5385e2d13","name":"Anna Linden","registered_at":"2026-06-16T00:04:45Z","symbol":"NIM0874502","token_address":"0x89a66e64ffc26d11d0f75b47d997c290124cb0c6","type":"artist","uuid":"1e10b440-8a6b-4866-80cc-5732b1e13dd5"}
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 0xce9e018f4b40f27b704afcbf945d58b0b89c00e3410442e86dd0c9d5385e2d13. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e10b440-8a6b-4866-80cc-5732b1e13dd5.json and https://artists.proofprofile.net/proofs/artist/1e10b440-8a6b-4866-80cc-5732b1e13dd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0xce9e018f4b40f27b704afcbf945d58b0b89c00e3410442e86dd0c9d5385e2d13","name":"Anna Linden","registered_at":"2026-06-16T00:04:45Z","symbol":"NIM0874502","token_address":"0x89a66e64ffc26d11d0f75b47d997c290124cb0c6","type":"artist","uuid":"1e10b440-8a6b-4866-80cc-5732b1e13dd5"}