Masa Fukuda
type: MusicGroup
description: Masafumi "Masa" Fukuda (福田真史; born in 1976) is a Japanese-American songwriter, music arranger, and choir director. He is the director and founder of One Voice Children's Choir. Born in Osaka, Japan,
popularity: 18
followers: 137
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaa41c78432dde83a7ee42f3736a04803b02817dac013bcb0c4e100d5054a86d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8c19331-8d4d-4446-afe7-1c6930e99e38.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8c19331-8d4d-4446-afe7-1c6930e99e38.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a8c19331-8d4d-4446-afe7-1c6930e99e38
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaa41c78432dde83a7ee42f3736a04803b02817dac013bcb0c4e100d5054a86d4","name":"Masa Fukuda","registered_at":"2026-06-14T22:17:15Z","symbol":"NIM0593456","token_address":"0x2db80df5e13c2f6b37bccce19bcda92a437bdc3f","type":"artist","uuid":"a8c19331-8d4d-4446-afe7-1c6930e99e38"}
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 0xaa41c78432dde83a7ee42f3736a04803b02817dac013bcb0c4e100d5054a86d4. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8c19331-8d4d-4446-afe7-1c6930e99e38.json and https://artists.proofprofile.net/proofs/artist/a8c19331-8d4d-4446-afe7-1c6930e99e38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0xaa41c78432dde83a7ee42f3736a04803b02817dac013bcb0c4e100d5054a86d4","name":"Masa Fukuda","registered_at":"2026-06-14T22:17:15Z","symbol":"NIM0593456","token_address":"0x2db80df5e13c2f6b37bccce19bcda92a437bdc3f","type":"artist","uuid":"a8c19331-8d4d-4446-afe7-1c6930e99e38"}
album: Children Will Listen
  type: MusicAlbum
  date published: 2014-12-30
album: Christmas Wish
  type: MusicAlbum
  date published: 2017-10-30