春来
type: MusicGroup
popularity: 6
followers: 175
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4efd33d345378c1bd278f8455d0fd01b55fa3d85b3a6ed99b436038db3a4ae65
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c276ab05-c5d1-4113-b225-81565f444eb7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c276ab05-c5d1-4113-b225-81565f444eb7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c276ab05-c5d1-4113-b225-81565f444eb7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4efd33d345378c1bd278f8455d0fd01b55fa3d85b3a6ed99b436038db3a4ae65","name":"春来","registered_at":"2026-06-20T19:48:06Z","symbol":"NIM1696205","token_address":"0x64804f106ef726e2162d5b85aa88f9e410bd874e","type":"artist","uuid":"c276ab05-c5d1-4113-b225-81565f444eb7"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efd33d345378c1bd278f8455d0fd01b55fa3d85b3a6ed99b436038db3a4ae65. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c276ab05-c5d1-4113-b225-81565f444eb7.json and https://artists.proofprofile.net/proofs/artist/c276ab05-c5d1-4113-b225-81565f444eb7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x4efd33d345378c1bd278f8455d0fd01b55fa3d85b3a6ed99b436038db3a4ae65","name":"春来","registered_at":"2026-06-20T19:48:06Z","symbol":"NIM1696205","token_address":"0x64804f106ef726e2162d5b85aa88f9e410bd874e","type":"artist","uuid":"c276ab05-c5d1-4113-b225-81565f444eb7"}
album: 車輪の唄
  type: MusicAlbum
  date published: 2022-07-20
album: 瞬き (mabataki)
  type: MusicAlbum
  date published: 2022-09-21