Portrait XO
type: MusicGroup
popularity: 2
followers: 391
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3ebfe03e102d764fa9ca14e1e7bd969b800c7177fac488651f5c6369ef08f07f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5a82299-c15f-41f2-a1fe-571851c2453f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5a82299-c15f-41f2-a1fe-571851c2453f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a5a82299-c15f-41f2-a1fe-571851c2453f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3ebfe03e102d764fa9ca14e1e7bd969b800c7177fac488651f5c6369ef08f07f","name":"Portrait XO","registered_at":"2026-06-20T07:04:52Z","symbol":"NIM1552130","token_address":"0x986cebc07edc173c6ee8d8d330f6c74e96701584","type":"artist","uuid":"a5a82299-c15f-41f2-a1fe-571851c2453f"}
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 0x3ebfe03e102d764fa9ca14e1e7bd969b800c7177fac488651f5c6369ef08f07f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5a82299-c15f-41f2-a1fe-571851c2453f.json and https://artists.proofprofile.net/proofs/artist/a5a82299-c15f-41f2-a1fe-571851c2453f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x3ebfe03e102d764fa9ca14e1e7bd969b800c7177fac488651f5c6369ef08f07f","name":"Portrait XO","registered_at":"2026-06-20T07:04:52Z","symbol":"NIM1552130","token_address":"0x986cebc07edc173c6ee8d8d330f6c74e96701584","type":"artist","uuid":"a5a82299-c15f-41f2-a1fe-571851c2453f"}
album: Portrait
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  date published: 2015-03-13
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