Kenichi Maeyamada
type: MusicGroup
description: , also known as , is a Japanese composer, lyricist, and musician. His primary work is composing anime theme songs and for J-pop musicians. He contracts through Supalove, a Japanese record label. He ha
popularity: 8
followers: 399
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ad72cf35c87d39243e0410c324d2427b4efa008e807ea865d828ba611243baa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6155e9a-3dff-470d-ad37-85fae51e620f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6155e9a-3dff-470d-ad37-85fae51e620f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c6155e9a-3dff-470d-ad37-85fae51e620f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8ad72cf35c87d39243e0410c324d2427b4efa008e807ea865d828ba611243baa","name":"Kenichi Maeyamada","registered_at":"2026-06-20T21:00:47Z","symbol":"NIM1712947","token_address":"0xc0579ccb572cf66628d001b50c4a1a4febc85cd1","type":"artist","uuid":"c6155e9a-3dff-470d-ad37-85fae51e620f"}
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 0x8ad72cf35c87d39243e0410c324d2427b4efa008e807ea865d828ba611243baa. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6155e9a-3dff-470d-ad37-85fae51e620f.json and https://artists.proofprofile.net/proofs/artist/c6155e9a-3dff-470d-ad37-85fae51e620f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x8ad72cf35c87d39243e0410c324d2427b4efa008e807ea865d828ba611243baa","name":"Kenichi Maeyamada","registered_at":"2026-06-20T21:00:47Z","symbol":"NIM1712947","token_address":"0xc0579ccb572cf66628d001b50c4a1a4febc85cd1","type":"artist","uuid":"c6155e9a-3dff-470d-ad37-85fae51e620f"}