RW 落ち着いたピアノ
type: MusicGroup
popularity: 4
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2e52599cf023e29d547d8bf498b80b3df22af83b7772c41735c06e7497b8769
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954025
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954025
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/383e76de-7b70-4f56-9be9-4fc36defdb69.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/383e76de-7b70-4f56-9be9-4fc36defdb69.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/383e76de-7b70-4f56-9be9-4fc36defdb69
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:32:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2e52599cf023e29d547d8bf498b80b3df22af83b7772c41735c06e7497b8769","name":"RW 落ち着いたピアノ","registered_at":"2026-06-16T09:09:32Z","symbol":"NIM1004609","token_address":"0x8c4d89f7c21aabb8b47a0ed36892fdacb020ebe3","type":"artist","uuid":"383e76de-7b70-4f56-9be9-4fc36defdb69"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e52599cf023e29d547d8bf498b80b3df22af83b7772c41735c06e7497b8769. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/383e76de-7b70-4f56-9be9-4fc36defdb69.json and https://artists.proofprofile.net/proofs/artist/383e76de-7b70-4f56-9be9-4fc36defdb69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T00:32:47Z
  text: {"copyright_id":"0xd2e52599cf023e29d547d8bf498b80b3df22af83b7772c41735c06e7497b8769","name":"RW 落ち着いたピアノ","registered_at":"2026-06-16T09:09:32Z","symbol":"NIM1004609","token_address":"0x8c4d89f7c21aabb8b47a0ed36892fdacb020ebe3","type":"artist","uuid":"383e76de-7b70-4f56-9be9-4fc36defdb69"}
album: 心地よいピアノ音楽 - バック グラウンド ミュージック | リラックス | 器楽 | ジャズ バー
  type: MusicAlbum
  date published: 2020-01-10