Katla María
type: MusicGroup
popularity: 11
followers: 414
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb007d9a7c258c924c37a2a582502897145a82cc273194b071293334121baa3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/432a4965-2bd7-456b-8594-13045f173b2d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/432a4965-2bd7-456b-8594-13045f173b2d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/432a4965-2bd7-456b-8594-13045f173b2d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcb007d9a7c258c924c37a2a582502897145a82cc273194b071293334121baa3c","name":"Katla María","registered_at":"2026-06-14T11:29:32Z","symbol":"NIM0438957","token_address":"0x40654bd95c5428e75a9e3a76a2065124df112155","type":"artist","uuid":"432a4965-2bd7-456b-8594-13045f173b2d"}
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 0xcb007d9a7c258c924c37a2a582502897145a82cc273194b071293334121baa3c. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/432a4965-2bd7-456b-8594-13045f173b2d.json and https://artists.proofprofile.net/proofs/artist/432a4965-2bd7-456b-8594-13045f173b2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xcb007d9a7c258c924c37a2a582502897145a82cc273194b071293334121baa3c","name":"Katla María","registered_at":"2026-06-14T11:29:32Z","symbol":"NIM0438957","token_address":"0x40654bd95c5428e75a9e3a76a2065124df112155","type":"artist","uuid":"432a4965-2bd7-456b-8594-13045f173b2d"}
album: Litli Mexíkaninn
  type: MusicAlbum
  date published: 1977-01-01
album: Litli Mexíkaninn
  type: MusicAlbum
  date published: 1977-01-01
album: Syngur spænsk barnalög við íslenska texta Guðmundar Guðmundarsonar
  type: MusicAlbum
  date published: 1979
album: Syngur spænsk barnalög við íslenska texta Guðmundar Guðmundarsonar
  type: MusicAlbum
  date published: 1979-01-01
album: Katla og Pálmi
  type: MusicAlbum
  date published: 1982
album: Katla og Pálmi
  type: MusicAlbum
  date published: 1982-01-01