momo Kazuhiro
type: MusicGroup
popularity: 7
followers: 1055
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7a091e857291aa9a1ee29f0396aa614aa338311f046bfa74cfe76bc066d08910
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbdc381b-d302-4fa5-9150-6ca53d2879b5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbdc381b-d302-4fa5-9150-6ca53d2879b5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fbdc381b-d302-4fa5-9150-6ca53d2879b5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7a091e857291aa9a1ee29f0396aa614aa338311f046bfa74cfe76bc066d08910","name":"momo Kazuhiro","registered_at":"2026-06-21T17:03:50Z","symbol":"NIM1981860","token_address":"0x37a497fa138cbe7d2992da810f07b67f4fe5d21b","type":"artist","uuid":"fbdc381b-d302-4fa5-9150-6ca53d2879b5"}
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 0x7a091e857291aa9a1ee29f0396aa614aa338311f046bfa74cfe76bc066d08910. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbdc381b-d302-4fa5-9150-6ca53d2879b5.json and https://artists.proofprofile.net/proofs/artist/fbdc381b-d302-4fa5-9150-6ca53d2879b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0x7a091e857291aa9a1ee29f0396aa614aa338311f046bfa74cfe76bc066d08910","name":"momo Kazuhiro","registered_at":"2026-06-21T17:03:50Z","symbol":"NIM1981860","token_address":"0x37a497fa138cbe7d2992da810f07b67f4fe5d21b","type":"artist","uuid":"fbdc381b-d302-4fa5-9150-6ca53d2879b5"}
album: 窓
  type: MusicAlbum
  date published: 2012-04-25
album: スカイ イズ ブルー
  type: MusicAlbum
  date published: 2016-09-07
album: OVERHEAT 49
  type: MusicAlbum
  date published: 2021-11-02
album: OVERHEAT 49
  type: MusicAlbum
  date published: 2021-11-02
album: Anakuro'N' Roll
  type: MusicAlbum
  date published: 2022-04-03
album: アナクロ'N' ROLL
  type: MusicAlbum
  date published: 2022-04-03