Sendecki & Spiegel
type: MusicGroup
genre: french jazz
popularity: 5
followers: 1251
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb7dca6bf5e4f4a5c060297b2fea05d4c824420734809a3742a04606016fb4e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/85d96660-bc61-479d-8638-be800ac89b9c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/85d96660-bc61-479d-8638-be800ac89b9c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/85d96660-bc61-479d-8638-be800ac89b9c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb7dca6bf5e4f4a5c060297b2fea05d4c824420734809a3742a04606016fb4e7","name":"Sendecki & Spiegel","registered_at":"2026-06-17T12:19:25Z","symbol":"NIM1393423","token_address":"0x6c0255f6fa2e58ed585a02cc2586e21184e9dd70","type":"artist","uuid":"85d96660-bc61-479d-8638-be800ac89b9c"}
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 0xdb7dca6bf5e4f4a5c060297b2fea05d4c824420734809a3742a04606016fb4e7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85d96660-bc61-479d-8638-be800ac89b9c.json and https://artists.proofprofile.net/proofs/artist/85d96660-bc61-479d-8638-be800ac89b9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xdb7dca6bf5e4f4a5c060297b2fea05d4c824420734809a3742a04606016fb4e7","name":"Sendecki & Spiegel","registered_at":"2026-06-17T12:19:25Z","symbol":"NIM1393423","token_address":"0x6c0255f6fa2e58ed585a02cc2586e21184e9dd70","type":"artist","uuid":"85d96660-bc61-479d-8638-be800ac89b9c"}
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