ピアノ リラクゼーション
type: MusicGroup
popularity: 4
followers: 800
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac04af050542cd9d9243a8cdc33ec93a17010d9b1e22fd8556fe8b84aa1f3f1f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8caa1109-be13-4780-bff6-220e4d23bd06.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8caa1109-be13-4780-bff6-220e4d23bd06.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8caa1109-be13-4780-bff6-220e4d23bd06
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xac04af050542cd9d9243a8cdc33ec93a17010d9b1e22fd8556fe8b84aa1f3f1f","name":"ピアノ リラクゼーション","registered_at":"2026-06-17T14:41:54Z","symbol":"NIM1427337","token_address":"0x8b49b7a6d5d0232f962ae4b0f71fb01a7c494d19","type":"artist","uuid":"8caa1109-be13-4780-bff6-220e4d23bd06"}
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 0xac04af050542cd9d9243a8cdc33ec93a17010d9b1e22fd8556fe8b84aa1f3f1f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8caa1109-be13-4780-bff6-220e4d23bd06.json and https://artists.proofprofile.net/proofs/artist/8caa1109-be13-4780-bff6-220e4d23bd06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xac04af050542cd9d9243a8cdc33ec93a17010d9b1e22fd8556fe8b84aa1f3f1f","name":"ピアノ リラクゼーション","registered_at":"2026-06-17T14:41:54Z","symbol":"NIM1427337","token_address":"0x8b49b7a6d5d0232f962ae4b0f71fb01a7c494d19","type":"artist","uuid":"8caa1109-be13-4780-bff6-220e4d23bd06"}
album: ピアノ (Electric Piano): 音楽療法, リラクゼーション, 瞑想, 快眠 and 癒し 音楽
  type: MusicAlbum
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