Dandan
type: MusicGroup
description: thumb|Trophy depicting a dandan at MagicCon: Chicago in 2025 A dandan or dendan is a mythical sea creature from The Book of One Thousand and One Nights (or Arabian Nights) appearing in the tale "Abdu
popularity: 24
followers: 379
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92f12eb38d1b1cfb6c1689b9ab188deae889fb6fcd83b5730f4d1cab3fcf70b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8070792-5d3d-486e-b121-6e3b4e16a342.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8070792-5d3d-486e-b121-6e3b4e16a342.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d8070792-5d3d-486e-b121-6e3b4e16a342
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f12eb38d1b1cfb6c1689b9ab188deae889fb6fcd83b5730f4d1cab3fcf70b1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8070792-5d3d-486e-b121-6e3b4e16a342.json and https://artists.proofprofile.net/proofs/artist/d8070792-5d3d-486e-b121-6e3b4e16a342.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Fofo
  type: MusicAlbum
  date published: 2015-12-07
album: Draai Asina
  type: MusicAlbum
  date published: 2016-10-10
album: Sali Ku 'Bo
  type: MusicAlbum
  date published: 2016-10-29