うえのたくと
type: MusicGroup
popularity: 10
followers: 978
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x481269eff729723f6aed3f9fff6e6748f88e99ead861349dd2a95e0339ee9dfe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953923
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953923
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cde3bdf-151a-47ef-89fc-b3ee315f5950.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cde3bdf-151a-47ef-89fc-b3ee315f5950.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cde3bdf-151a-47ef-89fc-b3ee315f5950
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:51:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x481269eff729723f6aed3f9fff6e6748f88e99ead861349dd2a95e0339ee9dfe","name":"うえのたくと","registered_at":"2026-06-15T23:30:27Z","symbol":"NIM0866315","token_address":"0x82718ed0d97ff26d9e0af29ece05c2a0dd7ca70f","type":"artist","uuid":"1cde3bdf-151a-47ef-89fc-b3ee315f5950"}
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 0x481269eff729723f6aed3f9fff6e6748f88e99ead861349dd2a95e0339ee9dfe. Chain 2 (Bitcoin): anchored in block 953923 (2026-06-16T09:51:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cde3bdf-151a-47ef-89fc-b3ee315f5950.json and https://artists.proofprofile.net/proofs/artist/1cde3bdf-151a-47ef-89fc-b3ee315f5950.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:51:37Z
  text: {"copyright_id":"0x481269eff729723f6aed3f9fff6e6748f88e99ead861349dd2a95e0339ee9dfe","name":"うえのたくと","registered_at":"2026-06-15T23:30:27Z","symbol":"NIM0866315","token_address":"0x82718ed0d97ff26d9e0af29ece05c2a0dd7ca70f","type":"artist","uuid":"1cde3bdf-151a-47ef-89fc-b3ee315f5950"}
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