Last Day Of Summer
type: MusicGroup
genre: acoustic rock
popularity: 12
followers: 343
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8add102ee25739c8e553b021b1df0aed4f0b5816cca36dbff95740c5199f844f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953633
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/329e4537-cfd2-4632-bb8b-00bdfa5d316e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/329e4537-cfd2-4632-bb8b-00bdfa5d316e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/329e4537-cfd2-4632-bb8b-00bdfa5d316e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:47:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8add102ee25739c8e553b021b1df0aed4f0b5816cca36dbff95740c5199f844f","name":"Last Day Of Summer","registered_at":"2026-06-14T09:47:04Z","symbol":"NIM0414510","token_address":"0xdab1f5d3abc1690f28f42437252b958b3ba67464","type":"artist","uuid":"329e4537-cfd2-4632-bb8b-00bdfa5d316e"}
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 0x8add102ee25739c8e553b021b1df0aed4f0b5816cca36dbff95740c5199f844f. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/329e4537-cfd2-4632-bb8b-00bdfa5d316e.json and https://artists.proofprofile.net/proofs/artist/329e4537-cfd2-4632-bb8b-00bdfa5d316e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:47:11Z
  text: {"copyright_id":"0x8add102ee25739c8e553b021b1df0aed4f0b5816cca36dbff95740c5199f844f","name":"Last Day Of Summer","registered_at":"2026-06-14T09:47:04Z","symbol":"NIM0414510","token_address":"0xdab1f5d3abc1690f28f42437252b958b3ba67464","type":"artist","uuid":"329e4537-cfd2-4632-bb8b-00bdfa5d316e"}
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