Gradualekór Langholtskirkju
type: MusicGroup
popularity: 6
followers: 300
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70a505f4d32e417ea991e965128ead21d0699183220de122af3c01fdeb5b92a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1267c7a3-fa3b-4b55-ab49-dc59cdf813f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1267c7a3-fa3b-4b55-ab49-dc59cdf813f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1267c7a3-fa3b-4b55-ab49-dc59cdf813f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x70a505f4d32e417ea991e965128ead21d0699183220de122af3c01fdeb5b92a3","name":"Gradualekór Langholtskirkju","registered_at":"2026-06-15T19:58:42Z","symbol":"NIM0815798","token_address":"0x13a1231a040f2232b732b54cea8c392a53607079","type":"artist","uuid":"1267c7a3-fa3b-4b55-ab49-dc59cdf813f4"}
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 0x70a505f4d32e417ea991e965128ead21d0699183220de122af3c01fdeb5b92a3. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1267c7a3-fa3b-4b55-ab49-dc59cdf813f4.json and https://artists.proofprofile.net/proofs/artist/1267c7a3-fa3b-4b55-ab49-dc59cdf813f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x70a505f4d32e417ea991e965128ead21d0699183220de122af3c01fdeb5b92a3","name":"Gradualekór Langholtskirkju","registered_at":"2026-06-15T19:58:42Z","symbol":"NIM0815798","token_address":"0x13a1231a040f2232b732b54cea8c392a53607079","type":"artist","uuid":"1267c7a3-fa3b-4b55-ab49-dc59cdf813f4"}
album: Ég bið að heilsa
  type: MusicAlbum
  date published: 1994-01-01
album: Göngum við í kringum
  type: MusicAlbum
  date published: 1995-01-01
album: Gradualekór Langholtskirkju
  type: MusicAlbum
  date published: 1997
album: Gradualekór Langholtskirkju
  type: MusicAlbum
  date published: 1997-01-01
album: Á jólunum er gleði og gaman
  type: MusicAlbum
  date published: 2020-12-03