健やかなる子ら
type: MusicGroup
genre: j-rock
popularity: 10
followers: 1560
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54ddcda8f93fb0c0ca2ba84cc2af8844bf71dda06938b36d4607446d90ecc970
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db199712-673c-488f-9260-f8e0c1f64a0f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db199712-673c-488f-9260-f8e0c1f64a0f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/db199712-673c-488f-9260-f8e0c1f64a0f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x54ddcda8f93fb0c0ca2ba84cc2af8844bf71dda06938b36d4607446d90ecc970","name":"健やかなる子ら","registered_at":"2026-06-21T04:32:35Z","symbol":"NIM1820720","token_address":"0xc6aabf114207727ef8941e0b52477f0f2e494faf","type":"artist","uuid":"db199712-673c-488f-9260-f8e0c1f64a0f"}
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 0x54ddcda8f93fb0c0ca2ba84cc2af8844bf71dda06938b36d4607446d90ecc970. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db199712-673c-488f-9260-f8e0c1f64a0f.json and https://artists.proofprofile.net/proofs/artist/db199712-673c-488f-9260-f8e0c1f64a0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x54ddcda8f93fb0c0ca2ba84cc2af8844bf71dda06938b36d4607446d90ecc970","name":"健やかなる子ら","registered_at":"2026-06-21T04:32:35Z","symbol":"NIM1820720","token_address":"0xc6aabf114207727ef8941e0b52477f0f2e494faf","type":"artist","uuid":"db199712-673c-488f-9260-f8e0c1f64a0f"}
album: u2semi (bottle green sunset)
  type: MusicAlbum
  date published: 2024-03-23
album: aosag1 (arashigaoka)
  type: MusicAlbum
  date published: 2023-02-26
album: On Writing : Vase,Nepenthes
  type: MusicAlbum
  date published: 2024-11-20
album: ka3nari(Bolt Age Image)
  type: MusicAlbum
  date published: 2026-01-12