Toyo Tanaka
type: MusicGroup
popularity: 13
followers: 118
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefc99bf69d55c61bf74c81500c2f7a58ff474c5544c525c175963d3c9d6ccb01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ccb82ad1-4cc3-4e9e-aa65-bef341ccbfdd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ccb82ad1-4cc3-4e9e-aa65-bef341ccbfdd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ccb82ad1-4cc3-4e9e-aa65-bef341ccbfdd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xefc99bf69d55c61bf74c81500c2f7a58ff474c5544c525c175963d3c9d6ccb01","name":"Toyo Tanaka","registered_at":"2026-06-15T02:01:38Z","symbol":"NIM0647069","token_address":"0x9867046de736f71153f434c4092904fe30ddf58e","type":"artist","uuid":"ccb82ad1-4cc3-4e9e-aa65-bef341ccbfdd"}
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 0xefc99bf69d55c61bf74c81500c2f7a58ff474c5544c525c175963d3c9d6ccb01. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccb82ad1-4cc3-4e9e-aa65-bef341ccbfdd.json and https://artists.proofprofile.net/proofs/artist/ccb82ad1-4cc3-4e9e-aa65-bef341ccbfdd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0xefc99bf69d55c61bf74c81500c2f7a58ff474c5544c525c175963d3c9d6ccb01","name":"Toyo Tanaka","registered_at":"2026-06-15T02:01:38Z","symbol":"NIM0647069","token_address":"0x9867046de736f71153f434c4092904fe30ddf58e","type":"artist","uuid":"ccb82ad1-4cc3-4e9e-aa65-bef341ccbfdd"}