Haldon Evans
type: MusicGroup
popularity: 11
followers: 43
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c567f316c6146325357c800a3d4971f13933e9a5d5276f04fe4425c3c3fb5c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de1c1290-04bb-49a4-8cff-58acee98fb93.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de1c1290-04bb-49a4-8cff-58acee98fb93.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/de1c1290-04bb-49a4-8cff-58acee98fb93
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c567f316c6146325357c800a3d4971f13933e9a5d5276f04fe4425c3c3fb5c5","name":"Haldon Evans","registered_at":"2026-06-15T03:46:05Z","symbol":"NIM0671995","token_address":"0x5a06f24da213576bb5fa6e0f0e95fded31ede726","type":"artist","uuid":"de1c1290-04bb-49a4-8cff-58acee98fb93"}
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 0x6c567f316c6146325357c800a3d4971f13933e9a5d5276f04fe4425c3c3fb5c5. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de1c1290-04bb-49a4-8cff-58acee98fb93.json and https://artists.proofprofile.net/proofs/artist/de1c1290-04bb-49a4-8cff-58acee98fb93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x6c567f316c6146325357c800a3d4971f13933e9a5d5276f04fe4425c3c3fb5c5","name":"Haldon Evans","registered_at":"2026-06-15T03:46:05Z","symbol":"NIM0671995","token_address":"0x5a06f24da213576bb5fa6e0f0e95fded31ede726","type":"artist","uuid":"de1c1290-04bb-49a4-8cff-58acee98fb93"}
album: H. Evans: Soliloquies on 3 Welsh Folk Songs: No. 2, Suo gân
  type: MusicAlbum
  date published: 2024-05-24