こだまさおり
type: MusicGroup
popularity: 3
followers: 479
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47f6cb4f3a0b3d3f6b5547133e61da68a3e567e9778d344da6e306858fd68465
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e655c90c-3249-4126-8bf1-cf2f3798b40d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e655c90c-3249-4126-8bf1-cf2f3798b40d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e655c90c-3249-4126-8bf1-cf2f3798b40d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x47f6cb4f3a0b3d3f6b5547133e61da68a3e567e9778d344da6e306858fd68465","name":"こだまさおり","registered_at":"2026-06-21T08:51:37Z","symbol":"NIM1876599","token_address":"0x2dcb2f3742584e9a2a28a0474e0e788d11c093c9","type":"artist","uuid":"e655c90c-3249-4126-8bf1-cf2f3798b40d"}
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 0x47f6cb4f3a0b3d3f6b5547133e61da68a3e567e9778d344da6e306858fd68465. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e655c90c-3249-4126-8bf1-cf2f3798b40d.json and https://artists.proofprofile.net/proofs/artist/e655c90c-3249-4126-8bf1-cf2f3798b40d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x47f6cb4f3a0b3d3f6b5547133e61da68a3e567e9778d344da6e306858fd68465","name":"こだまさおり","registered_at":"2026-06-21T08:51:37Z","symbol":"NIM1876599","token_address":"0x2dcb2f3742584e9a2a28a0474e0e788d11c093c9","type":"artist","uuid":"e655c90c-3249-4126-8bf1-cf2f3798b40d"}
album: あたたかい雨
  type: MusicAlbum
  date published: 1999
album: ひまわりと泣き虫
  type: MusicAlbum
  date published: 2000