Tangley Calliope
type: MusicGroup
genre: dark cabaret
popularity: 15
followers: 172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x04002f1ceef1a7c3e37eef69cc18376a880eb2411ed6afe8d0392121d29be756
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dea2033-93a7-45b9-9f1b-13d40f605ba7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dea2033-93a7-45b9-9f1b-13d40f605ba7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7dea2033-93a7-45b9-9f1b-13d40f605ba7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x04002f1ceef1a7c3e37eef69cc18376a880eb2411ed6afe8d0392121d29be756","name":"Tangley Calliope","registered_at":"2026-06-14T17:42:11Z","symbol":"NIM0527896","token_address":"0x3675db38b9acab30592a239a86b7bd244a111320","type":"artist","uuid":"7dea2033-93a7-45b9-9f1b-13d40f605ba7"}
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 0x04002f1ceef1a7c3e37eef69cc18376a880eb2411ed6afe8d0392121d29be756. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dea2033-93a7-45b9-9f1b-13d40f605ba7.json and https://artists.proofprofile.net/proofs/artist/7dea2033-93a7-45b9-9f1b-13d40f605ba7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x04002f1ceef1a7c3e37eef69cc18376a880eb2411ed6afe8d0392121d29be756","name":"Tangley Calliope","registered_at":"2026-06-14T17:42:11Z","symbol":"NIM0527896","token_address":"0x3675db38b9acab30592a239a86b7bd244a111320","type":"artist","uuid":"7dea2033-93a7-45b9-9f1b-13d40f605ba7"}