In Blanco
type: MusicGroup
popularity: 4
followers: 161
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9ffaa90f0dd31a5c7a53fca4b3e373a5c72512f5516cf75f650d561e0863f45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec1d27a4-971c-449a-b0f4-dbdeede22148.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec1d27a4-971c-449a-b0f4-dbdeede22148.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ec1d27a4-971c-449a-b0f4-dbdeede22148
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf9ffaa90f0dd31a5c7a53fca4b3e373a5c72512f5516cf75f650d561e0863f45","name":"In Blanco","registered_at":"2026-06-21T11:18:12Z","symbol":"NIM1905423","token_address":"0x9c277824ed53bbe7bb420d64c9e55583b46eea09","type":"artist","uuid":"ec1d27a4-971c-449a-b0f4-dbdeede22148"}
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 0xf9ffaa90f0dd31a5c7a53fca4b3e373a5c72512f5516cf75f650d561e0863f45. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec1d27a4-971c-449a-b0f4-dbdeede22148.json and https://artists.proofprofile.net/proofs/artist/ec1d27a4-971c-449a-b0f4-dbdeede22148.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xf9ffaa90f0dd31a5c7a53fca4b3e373a5c72512f5516cf75f650d561e0863f45","name":"In Blanco","registered_at":"2026-06-21T11:18:12Z","symbol":"NIM1905423","token_address":"0x9c277824ed53bbe7bb420d64c9e55583b46eea09","type":"artist","uuid":"ec1d27a4-971c-449a-b0f4-dbdeede22148"}
album: In Blanco
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  date published: 2019-09-06
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