NSD Block
type: MusicGroup
popularity: 5
followers: 3086
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d1d57f2e5218c53a25cccd52c951525b1988869f36da79f8445a4a44915eb9c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f30f94c3-58c6-4707-b2d5-7969b2d1ae83.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f30f94c3-58c6-4707-b2d5-7969b2d1ae83.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f30f94c3-58c6-4707-b2d5-7969b2d1ae83
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8d1d57f2e5218c53a25cccd52c951525b1988869f36da79f8445a4a44915eb9c","name":"NSD Block","registered_at":"2026-06-21T13:59:22Z","symbol":"NIM1941115","token_address":"0x788c27df1b8c98be646a60d5e2302cae53e15c71","type":"artist","uuid":"f30f94c3-58c6-4707-b2d5-7969b2d1ae83"}
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 0x8d1d57f2e5218c53a25cccd52c951525b1988869f36da79f8445a4a44915eb9c. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f30f94c3-58c6-4707-b2d5-7969b2d1ae83.json and https://artists.proofprofile.net/proofs/artist/f30f94c3-58c6-4707-b2d5-7969b2d1ae83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0x8d1d57f2e5218c53a25cccd52c951525b1988869f36da79f8445a4a44915eb9c","name":"NSD Block","registered_at":"2026-06-21T13:59:22Z","symbol":"NIM1941115","token_address":"0x788c27df1b8c98be646a60d5e2302cae53e15c71","type":"artist","uuid":"f30f94c3-58c6-4707-b2d5-7969b2d1ae83"}
album: Locadime
  type: MusicAlbum
  date published: 2021-08-09
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