Rozalén
type: MusicGroup
description: María de los Ángeles Rozalén Ortuño (born 12 June 1986 in Albacete, Spain) known professionally as Rozalén is a Spanish singer and songwriter. Life She grew up in Letur. She studied psychology at th
popularity: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4379e442da83b48cf44949cf68fe6b6a40c9128914291af7c9b01e17746f2e31
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4f50dfec-76ba-4387-99ff-a9ab34083d68.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4f50dfec-76ba-4387-99ff-a9ab34083d68.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4f50dfec-76ba-4387-99ff-a9ab34083d68
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4379e442da83b48cf44949cf68fe6b6a40c9128914291af7c9b01e17746f2e31","name":"Rozalén","registered_at":"2026-06-16T17:18:45Z","symbol":"NIM1121327","token_address":"0x5356ae6009c6de86a121a9f7044af6b41aa0e0da","type":"artist","uuid":"4f50dfec-76ba-4387-99ff-a9ab34083d68"}
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 0x4379e442da83b48cf44949cf68fe6b6a40c9128914291af7c9b01e17746f2e31. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f50dfec-76ba-4387-99ff-a9ab34083d68.json and https://artists.proofprofile.net/proofs/artist/4f50dfec-76ba-4387-99ff-a9ab34083d68.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x4379e442da83b48cf44949cf68fe6b6a40c9128914291af7c9b01e17746f2e31","name":"Rozalén","registered_at":"2026-06-16T17:18:45Z","symbol":"NIM1121327","token_address":"0x5356ae6009c6de86a121a9f7044af6b41aa0e0da","type":"artist","uuid":"4f50dfec-76ba-4387-99ff-a9ab34083d68"}