Jeff Espinoza
type: MusicGroup
genre: country blues
genre: jazz blues
popularity: 4
followers: 437
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb4be9ca6188d8d41024fa92fa17faf6a4e1e0bd0271dfb24be4c7f721c34d78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953843
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953843
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00348a4f-9816-4787-9b80-6e8018227ed6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00348a4f-9816-4787-9b80-6e8018227ed6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/00348a4f-9816-4787-9b80-6e8018227ed6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:27:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbb4be9ca6188d8d41024fa92fa17faf6a4e1e0bd0271dfb24be4c7f721c34d78","name":"Jeff Espinoza","registered_at":"2026-06-15T13:37:19Z","symbol":"NIM0725027","token_address":"0x69d4baae2dd41196c54c285c0b53fdf672535664","type":"artist","uuid":"00348a4f-9816-4787-9b80-6e8018227ed6"}
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 0xbb4be9ca6188d8d41024fa92fa17faf6a4e1e0bd0271dfb24be4c7f721c34d78. Chain 2 (Bitcoin): anchored in block 953843 (2026-06-15T22:27:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00348a4f-9816-4787-9b80-6e8018227ed6.json and https://artists.proofprofile.net/proofs/artist/00348a4f-9816-4787-9b80-6e8018227ed6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:27:31Z
  text: {"copyright_id":"0xbb4be9ca6188d8d41024fa92fa17faf6a4e1e0bd0271dfb24be4c7f721c34d78","name":"Jeff Espinoza","registered_at":"2026-06-15T13:37:19Z","symbol":"NIM0725027","token_address":"0x69d4baae2dd41196c54c285c0b53fdf672535664","type":"artist","uuid":"00348a4f-9816-4787-9b80-6e8018227ed6"}
album: Gypsy Runner
  type: MusicAlbum
  date published: 2015-04-13
album: Gypsy Runner
  type: MusicAlbum
  date published: 2015-04-13
album: Breathe
  type: MusicAlbum
  date published: 2021-10-01
album: Breathe
  type: MusicAlbum
  date published: 2021-10-01
album: Songs for remembering
  type: MusicAlbum
  date published: 2022-12-16
album: Classic & Vintage Blues
  type: MusicAlbum
  date published: 2023-10-12
album: Classic & Vintage Blues
  type: MusicAlbum
  date published: 2023-10-12
album: Lost Dogs of the Universe
  type: MusicAlbum
  date published: 2024-12-01
album: Lost Dogs of the Universe
  type: MusicAlbum
  date published: 2024-12-01