Roberto Colombo
type: MusicGroup
genre: avant-garde
genre: progressive rock
popularity: 4
followers: 435
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68f9b33c1856c71d5e778bf4238f62847d4b0244a6cfdff94c88b2bd6b2bbf4f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b76cf4b-b1ed-4067-9360-c1b61e31b3b3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b76cf4b-b1ed-4067-9360-c1b61e31b3b3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b76cf4b-b1ed-4067-9360-c1b61e31b3b3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x68f9b33c1856c71d5e778bf4238f62847d4b0244a6cfdff94c88b2bd6b2bbf4f","name":"Roberto Colombo","registered_at":"2026-06-16T04:46:41Z","symbol":"NIM0941838","token_address":"0xbcfdb1230dd314c560c0a6d5fafec3d63747432c","type":"artist","uuid":"2b76cf4b-b1ed-4067-9360-c1b61e31b3b3"}
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 0x68f9b33c1856c71d5e778bf4238f62847d4b0244a6cfdff94c88b2bd6b2bbf4f. Chain 2 (Bitcoin): anchored in block 953978 (2026-06-16T17:11:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b76cf4b-b1ed-4067-9360-c1b61e31b3b3.json and https://artists.proofprofile.net/proofs/artist/2b76cf4b-b1ed-4067-9360-c1b61e31b3b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T17:11:18Z
  text: {"copyright_id":"0x68f9b33c1856c71d5e778bf4238f62847d4b0244a6cfdff94c88b2bd6b2bbf4f","name":"Roberto Colombo","registered_at":"2026-06-16T04:46:41Z","symbol":"NIM0941838","token_address":"0xbcfdb1230dd314c560c0a6d5fafec3d63747432c","type":"artist","uuid":"2b76cf4b-b1ed-4067-9360-c1b61e31b3b3"}
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