Dawit Frew Hailu
type: MusicGroup
genre: ethiopian jazz
popularity: 2
followers: 448
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8bb8a46064fcddcff815dd8ef05a5a9ed97d0d4113774fe5c2aeed38b284a7a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d2a4382a-62f6-43be-a30d-afe71c2c6fb7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d2a4382a-62f6-43be-a30d-afe71c2c6fb7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d2a4382a-62f6-43be-a30d-afe71c2c6fb7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8bb8a46064fcddcff815dd8ef05a5a9ed97d0d4113774fe5c2aeed38b284a7a","name":"Dawit Frew Hailu","registered_at":"2026-06-21T01:55:41Z","symbol":"NIM1783392","token_address":"0xca77c5c50be2ce53190112ce742616634b58152f","type":"artist","uuid":"d2a4382a-62f6-43be-a30d-afe71c2c6fb7"}
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 0xb8bb8a46064fcddcff815dd8ef05a5a9ed97d0d4113774fe5c2aeed38b284a7a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2a4382a-62f6-43be-a30d-afe71c2c6fb7.json and https://artists.proofprofile.net/proofs/artist/d2a4382a-62f6-43be-a30d-afe71c2c6fb7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xb8bb8a46064fcddcff815dd8ef05a5a9ed97d0d4113774fe5c2aeed38b284a7a","name":"Dawit Frew Hailu","registered_at":"2026-06-21T01:55:41Z","symbol":"NIM1783392","token_address":"0xca77c5c50be2ce53190112ce742616634b58152f","type":"artist","uuid":"d2a4382a-62f6-43be-a30d-afe71c2c6fb7"}
album: Ambassel
  type: MusicAlbum
  date published: 2005-09-12