ジ・エコーズ
type: MusicGroup
popularity: 17
followers: 121
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf4a8ec8b801c9d54f824ce37e07c419cb68a5ec9ed1dfaadf6c838c2ed7018f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953687
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953687
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a44e408-aa9d-4566-8274-5950f3f52c9c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a44e408-aa9d-4566-8274-5950f3f52c9c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6a44e408-aa9d-4566-8274-5950f3f52c9c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:19:15Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf4a8ec8b801c9d54f824ce37e07c419cb68a5ec9ed1dfaadf6c838c2ed7018f2","name":"ジ・エコーズ","registered_at":"2026-06-14T15:33:02Z","symbol":"NIM0497072","token_address":"0x8e4e8577ed849438a0d540a4b775f6ccc15e2815","type":"artist","uuid":"6a44e408-aa9d-4566-8274-5950f3f52c9c"}
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 0xf4a8ec8b801c9d54f824ce37e07c419cb68a5ec9ed1dfaadf6c838c2ed7018f2. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a44e408-aa9d-4566-8274-5950f3f52c9c.json and https://artists.proofprofile.net/proofs/artist/6a44e408-aa9d-4566-8274-5950f3f52c9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T20:19:15Z
  text: {"copyright_id":"0xf4a8ec8b801c9d54f824ce37e07c419cb68a5ec9ed1dfaadf6c838c2ed7018f2","name":"ジ・エコーズ","registered_at":"2026-06-14T15:33:02Z","symbol":"NIM0497072","token_address":"0x8e4e8577ed849438a0d540a4b775f6ccc15e2815","type":"artist","uuid":"6a44e408-aa9d-4566-8274-5950f3f52c9c"}