Juan Manuel
type: MusicGroup
description: Don Juan Manuel (5 May 128213 June 1348) was a Spanish medieval writer, nephew of Alfonso X of Castile, son of Manuel of Castile and Beatrice of Savoy. He inherited from his father the great Lordship
popularity: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc328438cda0f8e9783808633b345a28890b2e7fa9fde3ad787f0abb17750a777
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/3c49b144-683c-49fb-9353-4469a68225a9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c49b144-683c-49fb-9353-4469a68225a9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c49b144-683c-49fb-9353-4469a68225a9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc328438cda0f8e9783808633b345a28890b2e7fa9fde3ad787f0abb17750a777","name":"Juan Manuel","registered_at":"2026-06-16T10:55:02Z","symbol":"NIM1029787","token_address":"0xe688e3c15b39d02768a9c4647a7e000e010516e3","type":"artist","uuid":"3c49b144-683c-49fb-9353-4469a68225a9"}
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 0xc328438cda0f8e9783808633b345a28890b2e7fa9fde3ad787f0abb17750a777. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c49b144-683c-49fb-9353-4469a68225a9.json and https://artists.proofprofile.net/proofs/artist/3c49b144-683c-49fb-9353-4469a68225a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xc328438cda0f8e9783808633b345a28890b2e7fa9fde3ad787f0abb17750a777","name":"Juan Manuel","registered_at":"2026-06-16T10:55:02Z","symbol":"NIM1029787","token_address":"0xe688e3c15b39d02768a9c4647a7e000e010516e3","type":"artist","uuid":"3c49b144-683c-49fb-9353-4469a68225a9"}
album: Ella Vino
  type: MusicAlbum
  date published: 2023-11-17