Esther & Anita
type: MusicGroup
popularity: 16
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x762f3771442226b05c5c0f4f04c0d67399df8f48bffa612557d123a3ed5a91e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f256e483-1178-425b-a9e0-569ee10c67e2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f256e483-1178-425b-a9e0-569ee10c67e2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f256e483-1178-425b-a9e0-569ee10c67e2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x762f3771442226b05c5c0f4f04c0d67399df8f48bffa612557d123a3ed5a91e7","name":"Esther & Anita","registered_at":"2026-06-15T05:54:34Z","symbol":"NIM0702663","token_address":"0xb1e8396cf8972a1960e019d7f18bf18a6aefcff8","type":"artist","uuid":"f256e483-1178-425b-a9e0-569ee10c67e2"}
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 0x762f3771442226b05c5c0f4f04c0d67399df8f48bffa612557d123a3ed5a91e7. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f256e483-1178-425b-a9e0-569ee10c67e2.json and https://artists.proofprofile.net/proofs/artist/f256e483-1178-425b-a9e0-569ee10c67e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
  text: {"copyright_id":"0x762f3771442226b05c5c0f4f04c0d67399df8f48bffa612557d123a3ed5a91e7","name":"Esther & Anita","registered_at":"2026-06-15T05:54:34Z","symbol":"NIM0702663","token_address":"0xb1e8396cf8972a1960e019d7f18bf18a6aefcff8","type":"artist","uuid":"f256e483-1178-425b-a9e0-569ee10c67e2"}
album: Ik Had Je Moeder Kunnen Zijn
  type: MusicAlbum
  date published: 2025-03-21