Fast Error404
type: MusicGroup
popularity: 2
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde27ff6e3ed08957ef61c14ffce6e77ae867a29ee5c06bfdc8e92aefcd947f7b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bd7515c9-79b1-48f9-9780-d0b84e579a55.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bd7515c9-79b1-48f9-9780-d0b84e579a55.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bd7515c9-79b1-48f9-9780-d0b84e579a55
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xde27ff6e3ed08957ef61c14ffce6e77ae867a29ee5c06bfdc8e92aefcd947f7b","name":"Fast Error404","registered_at":"2026-06-20T17:53:48Z","symbol":"NIM1671394","token_address":"0x21b070ee3fa278255b24ce972b6b8d830aa05e61","type":"artist","uuid":"bd7515c9-79b1-48f9-9780-d0b84e579a55"}
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 0xde27ff6e3ed08957ef61c14ffce6e77ae867a29ee5c06bfdc8e92aefcd947f7b. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd7515c9-79b1-48f9-9780-d0b84e579a55.json and https://artists.proofprofile.net/proofs/artist/bd7515c9-79b1-48f9-9780-d0b84e579a55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0xde27ff6e3ed08957ef61c14ffce6e77ae867a29ee5c06bfdc8e92aefcd947f7b","name":"Fast Error404","registered_at":"2026-06-20T17:53:48Z","symbol":"NIM1671394","token_address":"0x21b070ee3fa278255b24ce972b6b8d830aa05e61","type":"artist","uuid":"bd7515c9-79b1-48f9-9780-d0b84e579a55"}
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