浦島坂田船
type: MusicGroup
popularity: 10
followers: 116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4714148dd0dc56517a988df0af1b14c07a858ea8fdc4fed7355901bcc4f488d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954013
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954013
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34dbcd0c-a522-4034-bd51-b32aea1d93c4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34dbcd0c-a522-4034-bd51-b32aea1d93c4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/34dbcd0c-a522-4034-bd51-b32aea1d93c4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:27:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4714148dd0dc56517a988df0af1b14c07a858ea8fdc4fed7355901bcc4f488d","name":"浦島坂田船","registered_at":"2026-06-16T07:57:50Z","symbol":"NIM0987503","token_address":"0xc01b8184820149cba83b2c170337abcd1da444fd","type":"artist","uuid":"34dbcd0c-a522-4034-bd51-b32aea1d93c4"}
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 0xc4714148dd0dc56517a988df0af1b14c07a858ea8fdc4fed7355901bcc4f488d. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34dbcd0c-a522-4034-bd51-b32aea1d93c4.json and https://artists.proofprofile.net/proofs/artist/34dbcd0c-a522-4034-bd51-b32aea1d93c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:27:01Z
  text: {"copyright_id":"0xc4714148dd0dc56517a988df0af1b14c07a858ea8fdc4fed7355901bcc4f488d","name":"浦島坂田船","registered_at":"2026-06-16T07:57:50Z","symbol":"NIM0987503","token_address":"0xc01b8184820149cba83b2c170337abcd1da444fd","type":"artist","uuid":"34dbcd0c-a522-4034-bd51-b32aea1d93c4"}
album: はじまりの合図
  type: MusicAlbum
  date published: 2025-09-03
album: Memory Log
  type: MusicAlbum
  date published: 2025-09-05