Reinder
type: MusicGroup
genre: nederpop
description: Reinder () and Reindert are Dutch masculine given names derived from Reinier and Reinhard, which are cognate with RainierReinder and Reindert at the Meertens Institute database of given names in the N
popularity: 11
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28d1eb2bbbae473ac1401cb7dbfeac9ad7a50596eff2bf72edffa0d834c77fa4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e356ee32-d53b-4382-b985-5d97d360038f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e356ee32-d53b-4382-b985-5d97d360038f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e356ee32-d53b-4382-b985-5d97d360038f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
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 0x28d1eb2bbbae473ac1401cb7dbfeac9ad7a50596eff2bf72edffa0d834c77fa4. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e356ee32-d53b-4382-b985-5d97d360038f.json and https://artists.proofprofile.net/proofs/artist/e356ee32-d53b-4382-b985-5d97d360038f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
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