Meddison Sa
type: MusicGroup
genre: afropop
popularity: 2
followers: 123
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x918c2d8009681923a24a4b5d2502896e3cbc1f7db9aa249ad56cc975c3db4e57
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7589f7b-bf2d-4a2a-b4d2-3c67f1f21d62.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7589f7b-bf2d-4a2a-b4d2-3c67f1f21d62.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7589f7b-bf2d-4a2a-b4d2-3c67f1f21d62
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x918c2d8009681923a24a4b5d2502896e3cbc1f7db9aa249ad56cc975c3db4e57","name":"Meddison Sa","registered_at":"2026-06-20T15:50:57Z","symbol":"NIM1645695","token_address":"0x019646fe1876765b91dbd5bab0bbac3ca6e576fa","type":"artist","uuid":"b7589f7b-bf2d-4a2a-b4d2-3c67f1f21d62"}
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 0x918c2d8009681923a24a4b5d2502896e3cbc1f7db9aa249ad56cc975c3db4e57. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7589f7b-bf2d-4a2a-b4d2-3c67f1f21d62.json and https://artists.proofprofile.net/proofs/artist/b7589f7b-bf2d-4a2a-b4d2-3c67f1f21d62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x918c2d8009681923a24a4b5d2502896e3cbc1f7db9aa249ad56cc975c3db4e57","name":"Meddison Sa","registered_at":"2026-06-20T15:50:57Z","symbol":"NIM1645695","token_address":"0x019646fe1876765b91dbd5bab0bbac3ca6e576fa","type":"artist","uuid":"b7589f7b-bf2d-4a2a-b4d2-3c67f1f21d62"}
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