杏夜くもり
type: MusicGroup
popularity: 4
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x744ed4e927f7c1a25aa8ea695a9b5d6ac8812520f088958381135fb882deda25
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3538c3a3-cf94-4c39-a1b7-c5ec42a3750b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3538c3a3-cf94-4c39-a1b7-c5ec42a3750b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3538c3a3-cf94-4c39-a1b7-c5ec42a3750b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x744ed4e927f7c1a25aa8ea695a9b5d6ac8812520f088958381135fb882deda25","name":"杏夜くもり","registered_at":"2026-06-16T08:10:06Z","symbol":"NIM0990434","token_address":"0x91a86b65bc2266373ef3f999a3f37a34ca24c87d","type":"artist","uuid":"3538c3a3-cf94-4c39-a1b7-c5ec42a3750b"}
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 0x744ed4e927f7c1a25aa8ea695a9b5d6ac8812520f088958381135fb882deda25. Chain 2 (Bitcoin): anchored in block 954015 (2026-06-16T22:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3538c3a3-cf94-4c39-a1b7-c5ec42a3750b.json and https://artists.proofprofile.net/proofs/artist/3538c3a3-cf94-4c39-a1b7-c5ec42a3750b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:55:46Z
  text: {"copyright_id":"0x744ed4e927f7c1a25aa8ea695a9b5d6ac8812520f088958381135fb882deda25","name":"杏夜くもり","registered_at":"2026-06-16T08:10:06Z","symbol":"NIM0990434","token_address":"0x91a86b65bc2266373ef3f999a3f37a34ca24c87d","type":"artist","uuid":"3538c3a3-cf94-4c39-a1b7-c5ec42a3750b"}
album: くもりのうた
  type: MusicAlbum
  date published: 2025-03-29
album: Cloudy song
  type: MusicAlbum
  date published: 2025-03-29