はいだしょうこ(NHKおかあさんといっしょ)
type: MusicGroup
popularity: 26
followers: 451
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4d44df8ac18e9d8bdec31d7c8ee30d6d637d61e292f7c6a2efa7dedcdf7d699
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc3426b1-81af-435b-a1d8-2aeccacc8dbb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc3426b1-81af-435b-a1d8-2aeccacc8dbb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc3426b1-81af-435b-a1d8-2aeccacc8dbb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa4d44df8ac18e9d8bdec31d7c8ee30d6d637d61e292f7c6a2efa7dedcdf7d699","name":"はいだしょうこ(NHKおかあさんといっしょ)","registered_at":"2026-06-12T08:27:44Z","symbol":"NIM0242083","token_address":"0x1da911b5ee26bb4197258c0704cf902adbc50f7c","type":"artist","uuid":"bc3426b1-81af-435b-a1d8-2aeccacc8dbb"}
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 0xa4d44df8ac18e9d8bdec31d7c8ee30d6d637d61e292f7c6a2efa7dedcdf7d699. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc3426b1-81af-435b-a1d8-2aeccacc8dbb.json and https://artists.proofprofile.net/proofs/artist/bc3426b1-81af-435b-a1d8-2aeccacc8dbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xa4d44df8ac18e9d8bdec31d7c8ee30d6d637d61e292f7c6a2efa7dedcdf7d699","name":"はいだしょうこ(NHKおかあさんといっしょ)","registered_at":"2026-06-12T08:27:44Z","symbol":"NIM0242083","token_address":"0x1da911b5ee26bb4197258c0704cf902adbc50f7c","type":"artist","uuid":"bc3426b1-81af-435b-a1d8-2aeccacc8dbb"}