Edward Holland Jr.
type: MusicGroup
popularity: 7
followers: 933
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73ce3ff9116b1f24f3e403a6035a9c7747d72876987fd92e4dd5509e40c40e56
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/527973d6-588e-49ae-b947-eaf6dfd0d8a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/527973d6-588e-49ae-b947-eaf6dfd0d8a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/527973d6-588e-49ae-b947-eaf6dfd0d8a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73ce3ff9116b1f24f3e403a6035a9c7747d72876987fd92e4dd5509e40c40e56","name":"Edward Holland Jr.","registered_at":"2026-06-16T18:17:40Z","symbol":"NIM1135388","token_address":"0x37e48ec6d621490e500fdaa3bf3f000b310dab17","type":"artist","uuid":"527973d6-588e-49ae-b947-eaf6dfd0d8a7"}
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 0x73ce3ff9116b1f24f3e403a6035a9c7747d72876987fd92e4dd5509e40c40e56. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/527973d6-588e-49ae-b947-eaf6dfd0d8a7.json and https://artists.proofprofile.net/proofs/artist/527973d6-588e-49ae-b947-eaf6dfd0d8a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x73ce3ff9116b1f24f3e403a6035a9c7747d72876987fd92e4dd5509e40c40e56","name":"Edward Holland Jr.","registered_at":"2026-06-16T18:17:40Z","symbol":"NIM1135388","token_address":"0x37e48ec6d621490e500fdaa3bf3f000b310dab17","type":"artist","uuid":"527973d6-588e-49ae-b947-eaf6dfd0d8a7"}