John Di Martino & Warren Vache
type: MusicGroup
genre: cool jazz
popularity: 2
followers: 135
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x63b39ddf568b74f7722a813f89628df31be241ad5e8af7fd36b63f66172fb102
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953962
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953962
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2812e784-0151-4cc7-af6b-e60107c2ee34.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2812e784-0151-4cc7-af6b-e60107c2ee34.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2812e784-0151-4cc7-af6b-e60107c2ee34
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T15:03:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x63b39ddf568b74f7722a813f89628df31be241ad5e8af7fd36b63f66172fb102","name":"John Di Martino & Warren Vache","registered_at":"2026-06-16T03:27:21Z","symbol":"NIM0922894","token_address":"0x188e88bc244bbbdb94aafe2af9761225dcdc89af","type":"artist","uuid":"2812e784-0151-4cc7-af6b-e60107c2ee34"}
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 0x63b39ddf568b74f7722a813f89628df31be241ad5e8af7fd36b63f66172fb102. Chain 2 (Bitcoin): anchored in block 953963 (2026-06-16T15:12:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2812e784-0151-4cc7-af6b-e60107c2ee34.json and https://artists.proofprofile.net/proofs/artist/2812e784-0151-4cc7-af6b-e60107c2ee34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T15:12:33Z
  text: {"copyright_id":"0x63b39ddf568b74f7722a813f89628df31be241ad5e8af7fd36b63f66172fb102","name":"John Di Martino & Warren Vache","registered_at":"2026-06-16T03:27:21Z","symbol":"NIM0922894","token_address":"0x188e88bc244bbbdb94aafe2af9761225dcdc89af","type":"artist","uuid":"2812e784-0151-4cc7-af6b-e60107c2ee34"}
album: Impromptu
  type: MusicAlbum
  date published: 2012-10-17