なおちゃん(NHKおとうさんといっしょ)
type: MusicGroup
popularity: 8
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeac18a7391cf7c1f55eb0527bcdc08b715ce799685c4077473bd8b02912189cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/106aa26e-189b-4639-b90c-eed7ce21e265.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/106aa26e-189b-4639-b90c-eed7ce21e265.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/106aa26e-189b-4639-b90c-eed7ce21e265
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeac18a7391cf7c1f55eb0527bcdc08b715ce799685c4077473bd8b02912189cd","name":"なおちゃん(NHKおとうさんといっしょ)","registered_at":"2026-06-15T19:19:29Z","symbol":"NIM0806451","token_address":"0xe8971af2521c0381761d75c56159f0ca5672c4ca","type":"artist","uuid":"106aa26e-189b-4639-b90c-eed7ce21e265"}
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 0xeac18a7391cf7c1f55eb0527bcdc08b715ce799685c4077473bd8b02912189cd. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/106aa26e-189b-4639-b90c-eed7ce21e265.json and https://artists.proofprofile.net/proofs/artist/106aa26e-189b-4639-b90c-eed7ce21e265.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:05:56Z
  text: {"copyright_id":"0xeac18a7391cf7c1f55eb0527bcdc08b715ce799685c4077473bd8b02912189cd","name":"なおちゃん(NHKおとうさんといっしょ)","registered_at":"2026-06-15T19:19:29Z","symbol":"NIM0806451","token_address":"0xe8971af2521c0381761d75c56159f0ca5672c4ca","type":"artist","uuid":"106aa26e-189b-4639-b90c-eed7ce21e265"}