El Rubio
type: MusicGroup
description: El Rubio is a town and municipality located in the province of Seville, Spain. According to the 2005 census (INE), the city has a population of 3584 inhabitants. See also List of municipalities in S
popularity: 4
followers: 175
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x985cb1d674839fe9aabd6533468d72b8ae38e7397975bc740955d488653edcb6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954038
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954038
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e2675ed-9260-48de-8b31-2847f64bd5cd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e2675ed-9260-48de-8b31-2847f64bd5cd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e2675ed-9260-48de-8b31-2847f64bd5cd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:57:22Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x985cb1d674839fe9aabd6533468d72b8ae38e7397975bc740955d488653edcb6","name":"El Rubio","registered_at":"2026-06-16T11:17:19Z","symbol":"NIM1035103","token_address":"0xcfeb9e4bcd6e2b597c8f8be3444d2954bcdc4395","type":"artist","uuid":"3e2675ed-9260-48de-8b31-2847f64bd5cd"}
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 0x985cb1d674839fe9aabd6533468d72b8ae38e7397975bc740955d488653edcb6. Chain 2 (Bitcoin): anchored in block 954038 (2026-06-17T02:57:22Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e2675ed-9260-48de-8b31-2847f64bd5cd.json and https://artists.proofprofile.net/proofs/artist/3e2675ed-9260-48de-8b31-2847f64bd5cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:57:22Z
  text: {"copyright_id":"0x985cb1d674839fe9aabd6533468d72b8ae38e7397975bc740955d488653edcb6","name":"El Rubio","registered_at":"2026-06-16T11:17:19Z","symbol":"NIM1035103","token_address":"0xcfeb9e4bcd6e2b597c8f8be3444d2954bcdc4395","type":"artist","uuid":"3e2675ed-9260-48de-8b31-2847f64bd5cd"}
album: Navegando
  type: MusicAlbum
  date published: 2021-09-05
album: Navegando (Buscemi Miami Beach Remix)
  type: MusicAlbum
  date published: 2021-09-30