Ensemble TACTUS
type: MusicGroup
genre: chamber music
popularity: 6
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf0a1b42e26a0808290a2e1991e2b795113a835ef606182cc87532e0f91b9dc6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66f5c53b-3ea5-4374-92f7-5e53f4360484.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66f5c53b-3ea5-4374-92f7-5e53f4360484.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/66f5c53b-3ea5-4374-92f7-5e53f4360484
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcf0a1b42e26a0808290a2e1991e2b795113a835ef606182cc87532e0f91b9dc6","name":"Ensemble TACTUS","registered_at":"2026-06-17T01:35:36Z","symbol":"NIM1239873","token_address":"0xc6004c96e387fe5d1c5fb03ae0338b5c3cc7e9ac","type":"artist","uuid":"66f5c53b-3ea5-4374-92f7-5e53f4360484"}
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 0xcf0a1b42e26a0808290a2e1991e2b795113a835ef606182cc87532e0f91b9dc6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66f5c53b-3ea5-4374-92f7-5e53f4360484.json and https://artists.proofprofile.net/proofs/artist/66f5c53b-3ea5-4374-92f7-5e53f4360484.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcf0a1b42e26a0808290a2e1991e2b795113a835ef606182cc87532e0f91b9dc6","name":"Ensemble TACTUS","registered_at":"2026-06-17T01:35:36Z","symbol":"NIM1239873","token_address":"0xc6004c96e387fe5d1c5fb03ae0338b5c3cc7e9ac","type":"artist","uuid":"66f5c53b-3ea5-4374-92f7-5e53f4360484"}
album: J.S. Bach: Goldberg Variations, BWV 988 (Arr. R. Aggery)
  type: MusicAlbum
  date published: 2015-04-07