湯山昭
type: MusicGroup
genre: choral
popularity: 7
followers: 343
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14f5de65b9866572d805224749a70cb6020172f267911985f9fe306cbd8183cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a04c161d-98a1-4ffb-8021-1491c64a2c10.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a04c161d-98a1-4ffb-8021-1491c64a2c10.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a04c161d-98a1-4ffb-8021-1491c64a2c10
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x14f5de65b9866572d805224749a70cb6020172f267911985f9fe306cbd8183cc","name":"湯山昭","registered_at":"2026-06-20T05:33:51Z","symbol":"NIM1527136","token_address":"0x36348a28866946669f8b6c8fc14be4808811ca0a","type":"artist","uuid":"a04c161d-98a1-4ffb-8021-1491c64a2c10"}
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 0x14f5de65b9866572d805224749a70cb6020172f267911985f9fe306cbd8183cc. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a04c161d-98a1-4ffb-8021-1491c64a2c10.json and https://artists.proofprofile.net/proofs/artist/a04c161d-98a1-4ffb-8021-1491c64a2c10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x14f5de65b9866572d805224749a70cb6020172f267911985f9fe306cbd8183cc","name":"湯山昭","registered_at":"2026-06-20T05:33:51Z","symbol":"NIM1527136","token_address":"0x36348a28866946669f8b6c8fc14be4808811ca0a","type":"artist","uuid":"a04c161d-98a1-4ffb-8021-1491c64a2c10"}
album: 湯山昭 ピアノ曲集 「こどものせかい」
  type: MusicAlbum
  date published: 1998
album: 湯山昭 3大ヒットピアノ曲集
  type: MusicAlbum
  date published: 2015-08-12