Kokua
type: MusicGroup
description: is a Japanese musical group formed in 2006 especially to sing "Progress", the title song to the NHK program , known overseas as "The Professionals".https://www3.nhk.or.jp/nhkworld/en/tv/professionals
popularity: 6
followers: 854
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb8daaa55b149f2b5730d852471e98c6f8655e55f2561fe852712768239fbf61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29a9b3db-139e-4937-867a-354327dcf6a9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29a9b3db-139e-4937-867a-354327dcf6a9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29a9b3db-139e-4937-867a-354327dcf6a9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
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 0xcb8daaa55b149f2b5730d852471e98c6f8655e55f2561fe852712768239fbf61. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29a9b3db-139e-4937-867a-354327dcf6a9.json and https://artists.proofprofile.net/proofs/artist/29a9b3db-139e-4937-867a-354327dcf6a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
album: Kokua
  type: MusicAlbum
  date published: 2007-10-23
album: Immanuel
  type: MusicAlbum
  date published: 2012-12-01
album: Wanderlichter
  type: MusicAlbum
  date published: 2016-08-10
album: A Kokua Family Christmas
  type: MusicAlbum
  date published: 2024-11-28
album: Good News Great Joy (Alternate Version)
  type: MusicAlbum
  date published: 2025-02-14