The Cost
type: MusicGroup
popularity: 43
followers: 64998
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b53b07edfca9a6a23354e54217e8fa3761d1a9406926557a6709ef7963a54eb
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/dbebafd3-851a-4946-b721-1128ded6169e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbebafd3-851a-4946-b721-1128ded6169e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbebafd3-851a-4946-b721-1128ded6169e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b53b07edfca9a6a23354e54217e8fa3761d1a9406926557a6709ef7963a54eb","name":"The Cost","registered_at":"2026-06-12T11:25:33Z","symbol":"NIM0283321","token_address":"0x04b44a150731e7f8b6d463bff2d10eda3e3b555a","type":"artist","uuid":"dbebafd3-851a-4946-b721-1128ded6169e"}
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 0x9b53b07edfca9a6a23354e54217e8fa3761d1a9406926557a6709ef7963a54eb. 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/dbebafd3-851a-4946-b721-1128ded6169e.json and https://artists.proofprofile.net/proofs/artist/dbebafd3-851a-4946-b721-1128ded6169e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x9b53b07edfca9a6a23354e54217e8fa3761d1a9406926557a6709ef7963a54eb","name":"The Cost","registered_at":"2026-06-12T11:25:33Z","symbol":"NIM0283321","token_address":"0x04b44a150731e7f8b6d463bff2d10eda3e3b555a","type":"artist","uuid":"dbebafd3-851a-4946-b721-1128ded6169e"}
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