Siina Rehu
type: MusicGroup
genre: children's music
popularity: 13
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc34088921a2eb05fa2a00dea200178d7b0a99329ab1bad6c5ad3a717560e3fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953699
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953699
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7337d785-af4d-453f-a29d-5cd740a2dcfe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7337d785-af4d-453f-a29d-5cd740a2dcfe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7337d785-af4d-453f-a29d-5cd740a2dcfe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:00:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdc34088921a2eb05fa2a00dea200178d7b0a99329ab1bad6c5ad3a717560e3fb","name":"Siina Rehu","registered_at":"2026-06-14T16:36:06Z","symbol":"NIM0512121","token_address":"0x401c45d2abc5eca7e8f9f067999d03f336590c23","type":"artist","uuid":"7337d785-af4d-453f-a29d-5cd740a2dcfe"}
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 0xdc34088921a2eb05fa2a00dea200178d7b0a99329ab1bad6c5ad3a717560e3fb. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7337d785-af4d-453f-a29d-5cd740a2dcfe.json and https://artists.proofprofile.net/proofs/artist/7337d785-af4d-453f-a29d-5cd740a2dcfe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:00:24Z
  text: {"copyright_id":"0xdc34088921a2eb05fa2a00dea200178d7b0a99329ab1bad6c5ad3a717560e3fb","name":"Siina Rehu","registered_at":"2026-06-14T16:36:06Z","symbol":"NIM0512121","token_address":"0x401c45d2abc5eca7e8f9f067999d03f336590c23","type":"artist","uuid":"7337d785-af4d-453f-a29d-5cd740a2dcfe"}