Filkin's Ensemble
type: MusicGroup
genre: folk
popularity: 2
followers: 362
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7b8ae260320e7e565f31f84fcdf663d249dc88c836f4a2be65c84be2706d39d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a021fa69-78fd-40fb-a71c-42d9a61672ee.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a021fa69-78fd-40fb-a71c-42d9a61672ee.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a021fa69-78fd-40fb-a71c-42d9a61672ee
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe7b8ae260320e7e565f31f84fcdf663d249dc88c836f4a2be65c84be2706d39d","name":"Filkin's Ensemble","registered_at":"2026-06-20T05:10:21Z","symbol":"NIM1522169","token_address":"0x25658abb7422a133bccd6635daf64b25698f3b22","type":"artist","uuid":"a021fa69-78fd-40fb-a71c-42d9a61672ee"}
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 0xe7b8ae260320e7e565f31f84fcdf663d249dc88c836f4a2be65c84be2706d39d. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a021fa69-78fd-40fb-a71c-42d9a61672ee.json and https://artists.proofprofile.net/proofs/artist/a021fa69-78fd-40fb-a71c-42d9a61672ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xe7b8ae260320e7e565f31f84fcdf663d249dc88c836f4a2be65c84be2706d39d","name":"Filkin's Ensemble","registered_at":"2026-06-20T05:10:21Z","symbol":"NIM1522169","token_address":"0x25658abb7422a133bccd6635daf64b25698f3b22","type":"artist","uuid":"a021fa69-78fd-40fb-a71c-42d9a61672ee"}
album: Live from 'The Folk'
  type: MusicAlbum
  date published: 2023-05-31