Agnieszka śpiewa
type: MusicGroup
popularity: 11
followers: 495
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x222cab9eb9281a6ee1e66fb25053e7e51be212a68d7027d8048c37cdc0100d27
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e037f59c-c175-416d-989b-d3ac885a2602.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e037f59c-c175-416d-989b-d3ac885a2602.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e037f59c-c175-416d-989b-d3ac885a2602
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x222cab9eb9281a6ee1e66fb25053e7e51be212a68d7027d8048c37cdc0100d27","name":"Agnieszka śpiewa","registered_at":"2026-06-15T04:04:27Z","symbol":"NIM0676380","token_address":"0x7d63898f50a63f9f941b7a87bbbf5c6a4a9782a0","type":"artist","uuid":"e037f59c-c175-416d-989b-d3ac885a2602"}
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 0x222cab9eb9281a6ee1e66fb25053e7e51be212a68d7027d8048c37cdc0100d27. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e037f59c-c175-416d-989b-d3ac885a2602.json and https://artists.proofprofile.net/proofs/artist/e037f59c-c175-416d-989b-d3ac885a2602.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x222cab9eb9281a6ee1e66fb25053e7e51be212a68d7027d8048c37cdc0100d27","name":"Agnieszka śpiewa","registered_at":"2026-06-15T04:04:27Z","symbol":"NIM0676380","token_address":"0x7d63898f50a63f9f941b7a87bbbf5c6a4a9782a0","type":"artist","uuid":"e037f59c-c175-416d-989b-d3ac885a2602"}
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