BlockchainLive

Content Simhash

Fingerprints text with a 64-bit SimHash for near-duplicate detection, computed entirely locally.

$0.00575USDC per call · settled on Base · no subscription, no API key

Overview

Fingerprints text with a 64-bit SimHash for near-duplicate detection, computed entirely locally. Uses token-level k-shingles (default k=3) with FNV-1a; two SimHashes are 'close' (small Hamming distance) iff the underlying texts share many shingles. Returns hex + decimal forms plus token + shingle counts. Useful for content dedup pipelines, plagiarism detection, and bot-content clustering. Use it as a content fingerprint, dedup hash, or locality-sensitive hash.

Endpoint

MethodEndpointPriceDescription
POST/v1/marketplace/api/content-simhash$0.00575Invoke Content Simhash (Blockchain) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i -X POST https://api.jarvisclaw.ai/v1/marketplace/api/content-simhash \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/content-simhash \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'
Open in the marketplace

Docs: Getting started · x402 payments · x402 discovery · All APIs