Sir Blvd
type: MusicGroup
popularity: 14
followers: 95
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7c2cd7e62b78afb598f3e9ef94331c2a9422ba558723613cb5d0693f84f5d76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e2430acd-b995-495b-93e6-9c3b943d463c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e2430acd-b995-495b-93e6-9c3b943d463c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e2430acd-b995-495b-93e6-9c3b943d463c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa7c2cd7e62b78afb598f3e9ef94331c2a9422ba558723613cb5d0693f84f5d76","name":"Sir Blvd","registered_at":"2026-06-15T04:11:55Z","symbol":"NIM0678162","token_address":"0xf0cb0372c070f5a0978d1fd68b77771508e3ed96","type":"artist","uuid":"e2430acd-b995-495b-93e6-9c3b943d463c"}
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 0xa7c2cd7e62b78afb598f3e9ef94331c2a9422ba558723613cb5d0693f84f5d76. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2430acd-b995-495b-93e6-9c3b943d463c.json and https://artists.proofprofile.net/proofs/artist/e2430acd-b995-495b-93e6-9c3b943d463c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
  text: {"copyright_id":"0xa7c2cd7e62b78afb598f3e9ef94331c2a9422ba558723613cb5d0693f84f5d76","name":"Sir Blvd","registered_at":"2026-06-15T04:11:55Z","symbol":"NIM0678162","token_address":"0xf0cb0372c070f5a0978d1fd68b77771508e3ed96","type":"artist","uuid":"e2430acd-b995-495b-93e6-9c3b943d463c"}
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album: Intermission 2
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album: Blvd, Vol. 2
  type: MusicAlbum
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