Amina Kaufman
type: MusicGroup
popularity: 12
followers: 52
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb194473386591003ab5570c5dbcc5d7402247ddeeae0280a6cbc08a6816a7dc4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953794
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953794
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e085bf8d-7cde-4f0d-a3f7-bf69ec775dc2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e085bf8d-7cde-4f0d-a3f7-bf69ec775dc2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e085bf8d-7cde-4f0d-a3f7-bf69ec775dc2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:43:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb194473386591003ab5570c5dbcc5d7402247ddeeae0280a6cbc08a6816a7dc4","name":"Amina Kaufman","registered_at":"2026-06-15T04:07:11Z","symbol":"NIM0677034","token_address":"0x3bf41d3927a31c0218a47c7ce3be2ac02c00f259","type":"artist","uuid":"e085bf8d-7cde-4f0d-a3f7-bf69ec775dc2"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb194473386591003ab5570c5dbcc5d7402247ddeeae0280a6cbc08a6816a7dc4. Chain 2 (Bitcoin): anchored in block 953794 (2026-06-15T13:43:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e085bf8d-7cde-4f0d-a3f7-bf69ec775dc2.json and https://artists.proofprofile.net/proofs/artist/e085bf8d-7cde-4f0d-a3f7-bf69ec775dc2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:43:35Z
  text: {"copyright_id":"0xb194473386591003ab5570c5dbcc5d7402247ddeeae0280a6cbc08a6816a7dc4","name":"Amina Kaufman","registered_at":"2026-06-15T04:07:11Z","symbol":"NIM0677034","token_address":"0x3bf41d3927a31c0218a47c7ce3be2ac02c00f259","type":"artist","uuid":"e085bf8d-7cde-4f0d-a3f7-bf69ec775dc2"}
album: Relaxing Music for Period Cramps - Stress Relief Songs
  type: MusicAlbum
  date published: 2022-02-23