Fann 芳怡
type: MusicGroup
genre: chinese indie
genre: taiwanese indie
popularity: 3
followers: 356
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9391b3083666f0dee5b774b37c3ed032da409c4af06f8db5537f4ec2844a1dc1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d87cd1af-0e01-4686-82e8-bc193a96937a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d87cd1af-0e01-4686-82e8-bc193a96937a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d87cd1af-0e01-4686-82e8-bc193a96937a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9391b3083666f0dee5b774b37c3ed032da409c4af06f8db5537f4ec2844a1dc1","name":"Fann 芳怡","registered_at":"2026-06-21T03:43:27Z","symbol":"NIM1808062","token_address":"0xc832e44f7f849c0c32239d44ae73d51cf338cd37","type":"artist","uuid":"d87cd1af-0e01-4686-82e8-bc193a96937a"}
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 0x9391b3083666f0dee5b774b37c3ed032da409c4af06f8db5537f4ec2844a1dc1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d87cd1af-0e01-4686-82e8-bc193a96937a.json and https://artists.proofprofile.net/proofs/artist/d87cd1af-0e01-4686-82e8-bc193a96937a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x9391b3083666f0dee5b774b37c3ed032da409c4af06f8db5537f4ec2844a1dc1","name":"Fann 芳怡","registered_at":"2026-06-21T03:43:27Z","symbol":"NIM1808062","token_address":"0xc832e44f7f849c0c32239d44ae73d51cf338cd37","type":"artist","uuid":"d87cd1af-0e01-4686-82e8-bc193a96937a"}
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  type: MusicAlbum
  date published: 2012-10-30
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