Anna Chiara Colombo
type: MusicGroup
popularity: 3
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4c026511866bd3d71d4bc769f40f850653490a2bd2e70a5c421153bc3435339
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953941
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953941
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2157e07b-0580-4800-a189-afbd1905fdfc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2157e07b-0580-4800-a189-afbd1905fdfc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2157e07b-0580-4800-a189-afbd1905fdfc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:51:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa4c026511866bd3d71d4bc769f40f850653490a2bd2e70a5c421153bc3435339","name":"Anna Chiara Colombo","registered_at":"2026-06-16T01:03:28Z","symbol":"NIM0888521","token_address":"0x6cebbe757f3e89808f0a4642c179d333ed9597a1","type":"artist","uuid":"2157e07b-0580-4800-a189-afbd1905fdfc"}
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 0xa4c026511866bd3d71d4bc769f40f850653490a2bd2e70a5c421153bc3435339. Chain 2 (Bitcoin): anchored in block 953941 (2026-06-16T11:51:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2157e07b-0580-4800-a189-afbd1905fdfc.json and https://artists.proofprofile.net/proofs/artist/2157e07b-0580-4800-a189-afbd1905fdfc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:51:19Z
  text: {"copyright_id":"0xa4c026511866bd3d71d4bc769f40f850653490a2bd2e70a5c421153bc3435339","name":"Anna Chiara Colombo","registered_at":"2026-06-16T01:03:28Z","symbol":"NIM0888521","token_address":"0x6cebbe757f3e89808f0a4642c179d333ed9597a1","type":"artist","uuid":"2157e07b-0580-4800-a189-afbd1905fdfc"}