da/md
type: MusicGroup
genre: vietnamese hip hop
genre: vietnam indie
genre: v-pop
popularity: 31
followers: 2878
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0f42c3be2d91fe1e6b27cbd1fac1b9b42bab98de818e8d91212114b3401cb302
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953423
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953423
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d376456a-effc-46b6-811f-d2b7774f710f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d376456a-effc-46b6-811f-d2b7774f710f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d376456a-effc-46b6-811f-d2b7774f710f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T21:20:00Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f42c3be2d91fe1e6b27cbd1fac1b9b42bab98de818e8d91212114b3401cb302. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d376456a-effc-46b6-811f-d2b7774f710f.json and https://artists.proofprofile.net/proofs/artist/d376456a-effc-46b6-811f-d2b7774f710f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: Chiều Tím / Lạc Lối
  type: MusicAlbum
  date published: 2020-04-19
album: Young Boy / Hot Box
  type: MusicAlbum
  date published: 2020-07-12
album: Từ Lòng Thành Phố
  type: MusicAlbum
  date published: 2021-07-02
album: Oh Oh
  type: MusicAlbum
  date published: 2021-07-11
album: THU
  type: MusicAlbum
  date published: 2022-10-10
album: THU
  type: MusicAlbum
  date published: 2022-10-10
album: DE ANH NOI GOC PHONG
  type: MusicAlbum
  date published: 2023-03-29
album: Liệu Ta Có Đúng?
  type: MusicAlbum
  date published: 2024-02-27