Tromsø Big Band
type: MusicGroup
genre: big band
popularity: 7
followers: 90
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x90d1a660e79625d5b0ea82c2ac45de9cb755c2fdc567aadb2dd8dcf7871ee827
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/046fc23a-a4e3-4f28-8c50-5d1250a34c1f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/046fc23a-a4e3-4f28-8c50-5d1250a34c1f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/046fc23a-a4e3-4f28-8c50-5d1250a34c1f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x90d1a660e79625d5b0ea82c2ac45de9cb755c2fdc567aadb2dd8dcf7871ee827","name":"Tromsø Big Band","registered_at":"2026-06-15T15:03:41Z","symbol":"NIM0745400","token_address":"0x420d832d737658ac9ef364234f221cd7b29e3b40","type":"artist","uuid":"046fc23a-a4e3-4f28-8c50-5d1250a34c1f"}
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 0x90d1a660e79625d5b0ea82c2ac45de9cb755c2fdc567aadb2dd8dcf7871ee827. 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/046fc23a-a4e3-4f28-8c50-5d1250a34c1f.json and https://artists.proofprofile.net/proofs/artist/046fc23a-a4e3-4f28-8c50-5d1250a34c1f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0x90d1a660e79625d5b0ea82c2ac45de9cb755c2fdc567aadb2dd8dcf7871ee827","name":"Tromsø Big Band","registered_at":"2026-06-15T15:03:41Z","symbol":"NIM0745400","token_address":"0x420d832d737658ac9ef364234f221cd7b29e3b40","type":"artist","uuid":"046fc23a-a4e3-4f28-8c50-5d1250a34c1f"}
album: In Traffic
  type: MusicAlbum
  date published: 2011-02-24
album: 69° 39′ NORTH
  type: MusicAlbum
  date published: 2024-10-22