Astrud Castillo
type: MusicGroup
popularity: 2
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2fc3a83ae1b013b37f350dcb8db806c1c35d7b86623d15aeb6405c53980d3dfb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954729
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954729
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb782806-63e8-4a89-9f52-2e79f48751e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb782806-63e8-4a89-9f52-2e79f48751e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb782806-63e8-4a89-9f52-2e79f48751e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:16:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2fc3a83ae1b013b37f350dcb8db806c1c35d7b86623d15aeb6405c53980d3dfb","name":"Astrud Castillo","registered_at":"2026-06-21T16:55:27Z","symbol":"NIM1980337","token_address":"0x0906819b1295091a8cc887819ba2469907fb49d9","type":"artist","uuid":"fb782806-63e8-4a89-9f52-2e79f48751e3"}
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 0x2fc3a83ae1b013b37f350dcb8db806c1c35d7b86623d15aeb6405c53980d3dfb. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb782806-63e8-4a89-9f52-2e79f48751e3.json and https://artists.proofprofile.net/proofs/artist/fb782806-63e8-4a89-9f52-2e79f48751e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0x2fc3a83ae1b013b37f350dcb8db806c1c35d7b86623d15aeb6405c53980d3dfb","name":"Astrud Castillo","registered_at":"2026-06-21T16:55:27Z","symbol":"NIM1980337","token_address":"0x0906819b1295091a8cc887819ba2469907fb49d9","type":"artist","uuid":"fb782806-63e8-4a89-9f52-2e79f48751e3"}
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  type: MusicAlbum
  date published: 2018-06-01
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  type: MusicAlbum
  date published: 2022-06-01
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  type: MusicAlbum
  date published: 2025-03-12