Esquivel and His Piano Group
type: MusicGroup
popularity: 3
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d49a7bb11830be62ae08b7adb149b18df3ed93a825bc4bf0e1073e24799e731
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa02f378-1896-4def-88c6-2c55b9494fd9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa02f378-1896-4def-88c6-2c55b9494fd9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa02f378-1896-4def-88c6-2c55b9494fd9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d49a7bb11830be62ae08b7adb149b18df3ed93a825bc4bf0e1073e24799e731","name":"Esquivel and His Piano Group","registered_at":"2026-06-21T16:50:33Z","symbol":"NIM1977512","token_address":"0xe433e1829cfdd0d112b8a9a88bd4b9da8cccabef","type":"artist","uuid":"fa02f378-1896-4def-88c6-2c55b9494fd9"}
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 0x3d49a7bb11830be62ae08b7adb149b18df3ed93a825bc4bf0e1073e24799e731. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa02f378-1896-4def-88c6-2c55b9494fd9.json and https://artists.proofprofile.net/proofs/artist/fa02f378-1896-4def-88c6-2c55b9494fd9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x3d49a7bb11830be62ae08b7adb149b18df3ed93a825bc4bf0e1073e24799e731","name":"Esquivel and His Piano Group","registered_at":"2026-06-21T16:50:33Z","symbol":"NIM1977512","token_address":"0xe433e1829cfdd0d112b8a9a88bd4b9da8cccabef","type":"artist","uuid":"fa02f378-1896-4def-88c6-2c55b9494fd9"}
album: Four Corners of the World
  type: MusicAlbum
  date published: 2013-01-01