Silvina Issa
type: MusicGroup
genre: choral
popularity: 7
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2795fd78a78fd1b03d2d7afe96f525b834889387da11ee059b9956894269fcb3
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/65d2727c-bad8-4b09-a563-0dacdf754eb8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65d2727c-bad8-4b09-a563-0dacdf754eb8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/65d2727c-bad8-4b09-a563-0dacdf754eb8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2795fd78a78fd1b03d2d7afe96f525b834889387da11ee059b9956894269fcb3","name":"Silvina Issa","registered_at":"2026-06-17T01:01:24Z","symbol":"NIM1231702","token_address":"0xcd7791582859f7fe6b0ec3dc0d539792c85deaa7","type":"artist","uuid":"65d2727c-bad8-4b09-a563-0dacdf754eb8"}
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 0x2795fd78a78fd1b03d2d7afe96f525b834889387da11ee059b9956894269fcb3. 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/65d2727c-bad8-4b09-a563-0dacdf754eb8.json and https://artists.proofprofile.net/proofs/artist/65d2727c-bad8-4b09-a563-0dacdf754eb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2795fd78a78fd1b03d2d7afe96f525b834889387da11ee059b9956894269fcb3","name":"Silvina Issa","registered_at":"2026-06-17T01:01:24Z","symbol":"NIM1231702","token_address":"0xcd7791582859f7fe6b0ec3dc0d539792c85deaa7","type":"artist","uuid":"65d2727c-bad8-4b09-a563-0dacdf754eb8"}