NGOC HAN
type: MusicGroup
popularity: 2
followers: 49
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97416563313c46d65cf9ff51108cb30bce0328d5ad8698e258de8ff3b3dd7be8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c58964c4-ffbe-4d03-8bea-1ef2eeb26d42.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c58964c4-ffbe-4d03-8bea-1ef2eeb26d42.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c58964c4-ffbe-4d03-8bea-1ef2eeb26d42
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97416563313c46d65cf9ff51108cb30bce0328d5ad8698e258de8ff3b3dd7be8","name":"NGOC HAN","registered_at":"2026-06-20T21:19:26Z","symbol":"NIM1716854","token_address":"0x3f37df467f83a3014d93b5f2a8a93e1f94c97855","type":"artist","uuid":"c58964c4-ffbe-4d03-8bea-1ef2eeb26d42"}
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 0x97416563313c46d65cf9ff51108cb30bce0328d5ad8698e258de8ff3b3dd7be8. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c58964c4-ffbe-4d03-8bea-1ef2eeb26d42.json and https://artists.proofprofile.net/proofs/artist/c58964c4-ffbe-4d03-8bea-1ef2eeb26d42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x97416563313c46d65cf9ff51108cb30bce0328d5ad8698e258de8ff3b3dd7be8","name":"NGOC HAN","registered_at":"2026-06-20T21:19:26Z","symbol":"NIM1716854","token_address":"0x3f37df467f83a3014d93b5f2a8a93e1f94c97855","type":"artist","uuid":"c58964c4-ffbe-4d03-8bea-1ef2eeb26d42"}
album: Một Chiếc Hồn Hoang Trong Chiều Hoàng Hôn
  type: MusicAlbum
  date published: 2023-09-28
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  type: MusicAlbum
  date published: 2024-09-03
album: Nắng Ban Mai
  type: MusicAlbum
  date published: 2024-11-08
album: em là em bé iu
  type: MusicAlbum
  date published: 2025-03-19