Nobuteru Maeda
type: MusicGroup
genre: enka
genre: kayokyoku
description: is a Japanese male singer-songwriter from Atsugi, Kanagawa. He is signed onto Sony Music Japan. He is also a leader of rock band Tube. He released the hits "Sobani Iruyo" and "Try Boy, Try Girl". R
popularity: 7
followers: 1031
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7af88827e4313ef84b2fbb7ea566075de2ef0081488ee9bd69d742d6b62ed00
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8cd28e6-96fb-498e-891e-0a81ebe21382.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8cd28e6-96fb-498e-891e-0a81ebe21382.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b8cd28e6-96fb-498e-891e-0a81ebe21382
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb7af88827e4313ef84b2fbb7ea566075de2ef0081488ee9bd69d742d6b62ed00","name":"Nobuteru Maeda","registered_at":"2026-06-20T15:59:50Z","symbol":"NIM1649453","token_address":"0xa81ee1e3c2985855a6cd5b5f802697a263592cc2","type":"artist","uuid":"b8cd28e6-96fb-498e-891e-0a81ebe21382"}
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 0xb7af88827e4313ef84b2fbb7ea566075de2ef0081488ee9bd69d742d6b62ed00. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8cd28e6-96fb-498e-891e-0a81ebe21382.json and https://artists.proofprofile.net/proofs/artist/b8cd28e6-96fb-498e-891e-0a81ebe21382.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xb7af88827e4313ef84b2fbb7ea566075de2ef0081488ee9bd69d742d6b62ed00","name":"Nobuteru Maeda","registered_at":"2026-06-20T15:59:50Z","symbol":"NIM1649453","token_address":"0xa81ee1e3c2985855a6cd5b5f802697a263592cc2","type":"artist","uuid":"b8cd28e6-96fb-498e-891e-0a81ebe21382"}