Medium Choir
type: MusicGroup
popularity: 3
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd56e6a692de263fb23e94c198cf3af207aae386447227dba2a826bec6eab4a1d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954081
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954081
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79860439-4893-4939-99ed-eec933b11bdd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79860439-4893-4939-99ed-eec933b11bdd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/79860439-4893-4939-99ed-eec933b11bdd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T10:15:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd56e6a692de263fb23e94c198cf3af207aae386447227dba2a826bec6eab4a1d","name":"Medium Choir","registered_at":"2026-06-17T08:23:28Z","symbol":"NIM1337162","token_address":"0x87837c674db996f556173e09d0a68b3b4044944a","type":"artist","uuid":"79860439-4893-4939-99ed-eec933b11bdd"}
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 0xd56e6a692de263fb23e94c198cf3af207aae386447227dba2a826bec6eab4a1d. Chain 2 (Bitcoin): anchored in block 954081 (2026-06-17T10:15:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79860439-4893-4939-99ed-eec933b11bdd.json and https://artists.proofprofile.net/proofs/artist/79860439-4893-4939-99ed-eec933b11bdd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T10:15:47Z
  text: {"copyright_id":"0xd56e6a692de263fb23e94c198cf3af207aae386447227dba2a826bec6eab4a1d","name":"Medium Choir","registered_at":"2026-06-17T08:23:28Z","symbol":"NIM1337162","token_address":"0x87837c674db996f556173e09d0a68b3b4044944a","type":"artist","uuid":"79860439-4893-4939-99ed-eec933b11bdd"}
album: Sione
  type: MusicAlbum
  date published: 2014-08-01