Q & Q
type: MusicGroup
genre: latin house
description: thumb|Q and Q: Aristides Quarles van Ispen (, left) and Wilbur Quant () Q & Q was a Dutch television series, broadcast by the Katholieke Radio Omroep (KRO) in 1974. With an average audience of three
popularity: 2
followers: 212
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x647d8e839e79dfdecd0e96776f7c7ab24dd0d7401c099d1c9fdf72e2143ede00
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39e3069f-3cf9-490c-99b6-330f02a2106f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39e3069f-3cf9-490c-99b6-330f02a2106f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39e3069f-3cf9-490c-99b6-330f02a2106f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x647d8e839e79dfdecd0e96776f7c7ab24dd0d7401c099d1c9fdf72e2143ede00","name":"Q & Q","registered_at":"2026-06-16T09:40:47Z","symbol":"NIM1012062","token_address":"0x041840984970f921dd509ec87e774258175ba6c4","type":"artist","uuid":"39e3069f-3cf9-490c-99b6-330f02a2106f"}
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 0x647d8e839e79dfdecd0e96776f7c7ab24dd0d7401c099d1c9fdf72e2143ede00. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39e3069f-3cf9-490c-99b6-330f02a2106f.json and https://artists.proofprofile.net/proofs/artist/39e3069f-3cf9-490c-99b6-330f02a2106f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x647d8e839e79dfdecd0e96776f7c7ab24dd0d7401c099d1c9fdf72e2143ede00","name":"Q & Q","registered_at":"2026-06-16T09:40:47Z","symbol":"NIM1012062","token_address":"0x041840984970f921dd509ec87e774258175ba6c4","type":"artist","uuid":"39e3069f-3cf9-490c-99b6-330f02a2106f"}
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  type: MusicAlbum
  date published: 1993-06-04
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  type: MusicAlbum
  date published: 1993-11-19
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  type: MusicAlbum
  date published: 1994-07-07
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  type: MusicAlbum
  date published: 2014-08-09