Sana
type: MusicGroup
genre: raï
description: Sana or SANA may refer to: Places Sanaa, the capital of Yemen Sana (river), a river in Bosnia and Herzegovina Sana, Bhutan, a town in Bhutan Sana, Haute-Garonne, a commune in France Sana, Iran,
popularity: 11
followers: 646
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e583516d6cff5fbe0f87493a9d08d5fccde29e58a32cc17912bef111cd23773
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953691
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953691
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b88e5e2-fd8e-4399-9998-88a7d71329a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b88e5e2-fd8e-4399-9998-88a7d71329a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b88e5e2-fd8e-4399-9998-88a7d71329a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:39:17Z
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 0x9e583516d6cff5fbe0f87493a9d08d5fccde29e58a32cc17912bef111cd23773. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b88e5e2-fd8e-4399-9998-88a7d71329a3.json and https://artists.proofprofile.net/proofs/artist/6b88e5e2-fd8e-4399-9998-88a7d71329a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T20:39:17Z
album: Kanojo Wa Tabi Ni Deru (Tik Tok)
  type: MusicAlbum
  date published: 2018