Anders Mattisson
type: MusicGroup
genre: swedish ballads
popularity: 5
followers: 288
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf08b7d005bfd3fd03557be926bac7929351e0d1ce90957beb259db24834e3b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953958
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953958
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2744ef80-61c7-42a0-ab4c-a2248ec81427.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2744ef80-61c7-42a0-ab4c-a2248ec81427.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2744ef80-61c7-42a0-ab4c-a2248ec81427
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:52:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbf08b7d005bfd3fd03557be926bac7929351e0d1ce90957beb259db24834e3b9","name":"Anders Mattisson","registered_at":"2026-06-16T03:10:44Z","symbol":"NIM0918919","token_address":"0x26f9a8e709b7df610207ca2deaf646ac10ddd523","type":"artist","uuid":"2744ef80-61c7-42a0-ab4c-a2248ec81427"}
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 0xbf08b7d005bfd3fd03557be926bac7929351e0d1ce90957beb259db24834e3b9. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2744ef80-61c7-42a0-ab4c-a2248ec81427.json and https://artists.proofprofile.net/proofs/artist/2744ef80-61c7-42a0-ab4c-a2248ec81427.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xbf08b7d005bfd3fd03557be926bac7929351e0d1ce90957beb259db24834e3b9","name":"Anders Mattisson","registered_at":"2026-06-16T03:10:44Z","symbol":"NIM0918919","token_address":"0x26f9a8e709b7df610207ca2deaf646ac10ddd523","type":"artist","uuid":"2744ef80-61c7-42a0-ab4c-a2248ec81427"}