Yann Tomita
type: MusicGroup
description: is a Japanese musician, composer, record producer, writer, and steelpan player based in Tokyo. In Japan during the 1980s and 1990s, he pioneered various music genres, including hip hop, dub, acid jaz
popularity: 3
followers: 925
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd47f7e43e83f3c084e67a9b6cdc5307183ff07b3296d0f8050cc27bfe0c5c27e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953860
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953860
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/034d1114-f00e-4c1c-8369-a0b554cc1d5d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/034d1114-f00e-4c1c-8369-a0b554cc1d5d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/034d1114-f00e-4c1c-8369-a0b554cc1d5d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:55:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd47f7e43e83f3c084e67a9b6cdc5307183ff07b3296d0f8050cc27bfe0c5c27e","name":"Yann Tomita","registered_at":"2026-06-15T14:47:28Z","symbol":"NIM0741533","token_address":"0x8dd7ba86eb4245484f487c8d7e1a16820363a8ab","type":"artist","uuid":"034d1114-f00e-4c1c-8369-a0b554cc1d5d"}
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 0xd47f7e43e83f3c084e67a9b6cdc5307183ff07b3296d0f8050cc27bfe0c5c27e. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/034d1114-f00e-4c1c-8369-a0b554cc1d5d.json and https://artists.proofprofile.net/proofs/artist/034d1114-f00e-4c1c-8369-a0b554cc1d5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xd47f7e43e83f3c084e67a9b6cdc5307183ff07b3296d0f8050cc27bfe0c5c27e","name":"Yann Tomita","registered_at":"2026-06-15T14:47:28Z","symbol":"NIM0741533","token_address":"0x8dd7ba86eb4245484f487c8d7e1a16820363a8ab","type":"artist","uuid":"034d1114-f00e-4c1c-8369-a0b554cc1d5d"}