Twenty7
type: MusicGroup
description: Twenty7 (27) or with Turkish equivalent yirmi7 is a world music/rock band based in Los Angeles that primarily plays rock with a fusion of ethnic music influences. Its three current members are Okan Şa
popularity: 8
followers: 131
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a83770bff60aa354b50bd868ff631e4f2f9eb47bd7f10a19df9fc103c75853f
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/89d434e2-e136-4548-98ad-ceb6166b0183.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89d434e2-e136-4548-98ad-ceb6166b0183.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/89d434e2-e136-4548-98ad-ceb6166b0183
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
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 0x1a83770bff60aa354b50bd868ff631e4f2f9eb47bd7f10a19df9fc103c75853f. 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/89d434e2-e136-4548-98ad-ceb6166b0183.json and https://artists.proofprofile.net/proofs/artist/89d434e2-e136-4548-98ad-ceb6166b0183.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: Joint
  type: MusicAlbum
  date published: 2022-08-19
album: 1000 Mal
  type: MusicAlbum
  date published: 2023-02-17
album: HOODIE XL
  type: MusicAlbum
  date published: 2023-03-31
album: Kann sein
  type: MusicAlbum
  date published: 2023-06-09
album: Du Suchst
  type: MusicAlbum
  date published: 2023-12-01
album: Drunktext
  type: MusicAlbum
  date published: 2023-12-29
album: Meine Moves
  type: MusicAlbum
  date published: 2024-01-19
album: Mindfucks
  type: MusicAlbum
  date published: 2024-02-16
album: Outkst
  type: MusicAlbum
  date published: 2024-08-30
album: Zu dir
  type: MusicAlbum
  date published: 2024-10-11