Sur Y Norte
type: MusicGroup
genre: cumbia norteña
popularity: 2
followers: 373
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf0e55b0b82cadbd334f033a422b321cfa85a09bf4af5693a45b44010f00c3fb6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/039443f2-acd0-424a-b3c5-c156a6207aaf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/039443f2-acd0-424a-b3c5-c156a6207aaf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/039443f2-acd0-424a-b3c5-c156a6207aaf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf0e55b0b82cadbd334f033a422b321cfa85a09bf4af5693a45b44010f00c3fb6","name":"Sur Y Norte","registered_at":"2026-06-15T14:52:51Z","symbol":"NIM0742816","token_address":"0x620529a4d44415555d75ec8d3d10b5b7b43bb504","type":"artist","uuid":"039443f2-acd0-424a-b3c5-c156a6207aaf"}
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 0xf0e55b0b82cadbd334f033a422b321cfa85a09bf4af5693a45b44010f00c3fb6. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/039443f2-acd0-424a-b3c5-c156a6207aaf.json and https://artists.proofprofile.net/proofs/artist/039443f2-acd0-424a-b3c5-c156a6207aaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0xf0e55b0b82cadbd334f033a422b321cfa85a09bf4af5693a45b44010f00c3fb6","name":"Sur Y Norte","registered_at":"2026-06-15T14:52:51Z","symbol":"NIM0742816","token_address":"0x620529a4d44415555d75ec8d3d10b5b7b43bb504","type":"artist","uuid":"039443f2-acd0-424a-b3c5-c156a6207aaf"}
album: En Vivo Desde La Malinche De Tampico Tamps
  type: MusicAlbum
  date published: 2019-06-24