月川
type: MusicGroup
popularity: 2
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1bf5b2eac93273b14ac7fd98c3fd8a49dd17516fec37c263b755c24c77bd217
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf55c371-050d-4bd7-b133-7b71ba5a9f7a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf55c371-050d-4bd7-b133-7b71ba5a9f7a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cf55c371-050d-4bd7-b133-7b71ba5a9f7a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf1bf5b2eac93273b14ac7fd98c3fd8a49dd17516fec37c263b755c24c77bd217","name":"月川","registered_at":"2026-06-21T00:15:28Z","symbol":"NIM1759891","token_address":"0xd92f82de0bdae5eaa8ebc07be6f2b1d800afb60c","type":"artist","uuid":"cf55c371-050d-4bd7-b133-7b71ba5a9f7a"}
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 0xf1bf5b2eac93273b14ac7fd98c3fd8a49dd17516fec37c263b755c24c77bd217. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf55c371-050d-4bd7-b133-7b71ba5a9f7a.json and https://artists.proofprofile.net/proofs/artist/cf55c371-050d-4bd7-b133-7b71ba5a9f7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xf1bf5b2eac93273b14ac7fd98c3fd8a49dd17516fec37c263b755c24c77bd217","name":"月川","registered_at":"2026-06-21T00:15:28Z","symbol":"NIM1759891","token_address":"0xd92f82de0bdae5eaa8ebc07be6f2b1d800afb60c","type":"artist","uuid":"cf55c371-050d-4bd7-b133-7b71ba5a9f7a"}
album: Release your Desire
  type: MusicAlbum
  date published: 2022-05-30
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  type: MusicAlbum
  date published: 2022-11-13
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  type: MusicAlbum
  date published: 2023-01-25
album: ツキカワ
  type: MusicAlbum
  date published: 2023-08-09
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2024-11-19