Discover / twin.unykorn.org

One Bitcoin block by hash

■ Challenge detected

ABI-decode return data against declared types — Genesis402 / UnyKorn Operator Network

Listed price
$0.003
Challenge detected
5 of the last 9 checks
Median response
340 ms
Last checked
16 Oct, 18:49 UTC
In our index since
26 Sept 2026

Endpoint

curl -i https://twin.unykorn.org/abi-decode
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
368 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://twin.unykorn.org

  • POST/price/bitcoin$0.003Bitcoin (BTC) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
  • POST/hash-hmac$0.003HMAC of a message under a key — Genesis402 / UnyKorn Operator Network
  • POST/erc721-owner$0.003Who currently owns one ERC721 token — Genesis402 / UnyKorn Operator Network
  • POST/stellar-offers$0.004Open offers an account has on the Stellar DEX — Genesis402 / UnyKorn Operator Network
  • POST/evm-tx$0.006EVM transaction + receipt + decoded ERC20 transfers in ONE call — Genesis402 / UnyKorn Operator Network
  • POST/evm-address-summary$0.006Everything cheap that is knowable about an address, in one call — Genesis402 / UnyKorn Operator Network
  • POST/research/wiki-summary$0.003Wikipedia article summary (lead section) by title — Genesis402 / UnyKorn Operator Network
  • POST/defi/chain/bitcoin$0.01Bitcoin DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees — Genesis402 / UnyKorn Operator Network
  • POST/price/ethereum$0.003Ethereum (ETH) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
  • POST/geo/public-holidays$0.003Public holidays for 100+ countries for any year — Genesis402 / UnyKorn Operator Network
  • POST/price/bitcoin-cash$0.003Bitcoin Cash (BCH) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
  • POST/stellar-account$0.008Stellar account read — balances, trustlines, signers, thresholds, flags — Genesis402 / UnyKorn Operator Network
  • POST/evm-chain-id$0.003EIP-155 chain id, confirmed from the node itself — Genesis402 / UnyKorn Operator Network
  • POST/price/dogecoin$0.003Dogecoin (DOGE) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
  • POST/btc-difficulty$0.003Bitcoin difficulty adjustment progress and estimate — Genesis402 / UnyKorn Operator Network
  • POST/stellar-ledger$0.003Latest Stellar ledger — height, close time, fees and throughput — Genesis402 / UnyKorn Operator Network
  • POST/records/federal-register$0.003US Federal Register search: rules, proposed rules, notices, executive orders — Genesis402 / UnyKorn Operator Network
  • POST/defi/chain/avalanche$0.01Avalanche DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees — Genesis402 / UnyKorn Operator Network
  • POST/records/treasury-yields$0.003US Treasury yield curve (1m-30y) with 10y-2y spread and inversion flag — Genesis402 / UnyKorn Operator Network
  • POST/price/avalanche-2$0.003Avalanche (AVAX) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
  • POST/price/monero$0.003Monero (XMR) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network
  • POST/percent-change$0.003Percentage and multiple change between two values — Genesis402 / UnyKorn Operator Network
  • POST/solana-account$0.008Solana account read — SOL balance plus every SPL token the owner holds — Genesis402 / UnyKorn Operator Network
  • POST/ai/json-repair$0.003Repair malformed JSON (trailing commas, single quotes, code fences, Python literals) — Genesis402 / UnyKorn Operator Network
  • POST/research/arxiv-search$0.003arXiv paper search: titles, authors, abstracts, PDF links — Genesis402 / UnyKorn Operator Network

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 25 of 368 listed endpoints. Next endpoints First endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/twin.unykorn.org

Recent checks

4 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026
All 9 checks
When (UTC)ResultHTTPResponse
16 Oct, 18:49 UTCChallenge detected40299ms
15 Oct, 14:11 UTCChallenge detected402810ms
14 Oct, 08:45 UTCChallenge detected402340ms
12 Oct, 22:31 UTCNo challenge detected200181ms
11 Oct, 00:15 UTCNo challenge detected200127ms
9 Oct, 15:32 UTCNo challenge detected200225ms
8 Oct, 09:33 UTCNo challenge detected200181ms
7 Oct, 03:32 UTCChallenge detected402621ms
4 Oct, 05:04 UTCChallenge detected40275ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 18:49 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for One Bitcoin block by hash?

Its listed price is $0.003.

What payment terms does One Bitcoin block by hash advertise?

The listing advertises x402, Base, Polygon, Solana, Stellar, Xrpl, USDC and XRP. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is One Bitcoin block by hash listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.

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