Black Dolphin
type: MusicGroup
popularity: 34
followers: 130
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77fa539fba6911c15af7f7e8bf264fe75274c4980764f3a9f14fe2f788eab5f5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6a4bcde-050d-4d0f-a0d3-20aaa58c1f12.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6a4bcde-050d-4d0f-a0d3-20aaa58c1f12.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b6a4bcde-050d-4d0f-a0d3-20aaa58c1f12
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x77fa539fba6911c15af7f7e8bf264fe75274c4980764f3a9f14fe2f788eab5f5","name":"Black Dolphin","registered_at":"2026-06-12T08:02:49Z","symbol":"NIM0236263","token_address":"0x5e19999b4f7f93ec2fdff4dceeb16514a47ae576","type":"artist","uuid":"b6a4bcde-050d-4d0f-a0d3-20aaa58c1f12"}
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 0x77fa539fba6911c15af7f7e8bf264fe75274c4980764f3a9f14fe2f788eab5f5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6a4bcde-050d-4d0f-a0d3-20aaa58c1f12.json and https://artists.proofprofile.net/proofs/artist/b6a4bcde-050d-4d0f-a0d3-20aaa58c1f12.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x77fa539fba6911c15af7f7e8bf264fe75274c4980764f3a9f14fe2f788eab5f5","name":"Black Dolphin","registered_at":"2026-06-12T08:02:49Z","symbol":"NIM0236263","token_address":"0x5e19999b4f7f93ec2fdff4dceeb16514a47ae576","type":"artist","uuid":"b6a4bcde-050d-4d0f-a0d3-20aaa58c1f12"}