Keryx
Settled
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Original testnet dispatches

The track record

Arc testnet history

Browse all old questions →

Recorded reading and creator payments from 2026-06-15 to 2026-10-02. Original testnet evidence is retained alongside current mainnet activity.

Recorded questions
3,280
Settled creator payments
11,314
Settled to creator wallets
56.748064 test USDC
Creator wallets paid
23

Testnet USDC, separate from mainnet. Includes owner-operated activity; these totals do not establish independent customers or event-period growth.

Testnet creator leaderboard

Download creator data →

Ranked by settled access and citation payments to each original source and wallet. Historical listings do not establish current publisher control.

  1. 1

    Stablecoin Ledger

    0x32ef…0933 ↗ · 1,184 cites · 1,262 payments

    9.445228 test USDC
  2. 2

    Agent Economy Weekly

    0x3cd0…65e3 ↗ · 1,079 cites · 1,167 payments

    8.868264 test USDC
  3. 3

    Onchain Micropayments Digest

    0xd6a2…9ff8 ↗ · 1,050 cites · 1,050 payments

    5.382926 test USDC
  4. 4

    Arc Settlement Benchmarks

    0x9aea…331d ↗ · 756 cites · 950 payments

    5.038727 test USDC
  5. 5

    Onchain Micropayments Digest

    0x13c8…6322 ↗ · 1,050 cites · 1,050 payments

    3.588614 test USDC
  6. 6

    Distributed Systems Notes

    0x3d52…7ebe ↗ · 302 cites · 476 payments

    2.646853 test USDC
  7. 7

    Cointelegraph.com News

    0xbfee…8689 ↗ · 153 cites · 641 payments

    2.010595 test USDC
  8. 8

    Web Payments Review

    0x96db…fd52 ↗ · 501 cites · 612 payments

    1.998823 test USDC
  9. 9

    CoinDesk: Bitcoin, Ethereum, Crypto News and Price Data

    0x04a8…66cc ↗ · 166 cites · 575 payments

    1.807349 test USDC
  10. 10

    Latent.Space

    0x3af1…a911 ↗ · 135 cites · 323 payments

    1.679483 test USDC
  11. 11

    Ethereum Foundation Blog

    0x1337…107e ↗ · 171 cites · 474 payments

    1.551999 test USDC
  12. 12

    Stripe Blog

    0xde6f…2d98 ↗ · 178 cites · 396 payments

    1.551869 test USDC
  13. 13

    Decrypt

    0x3e3e…b32d ↗ · 124 cites · 487 payments

    1.543466 test USDC
  14. 14

    The Coinbase Blog - Medium

    0xafac…a9e7 ↗ · 136 cites · 322 payments

    1.465917 test USDC
  15. 15

    Garden & Soil Monthly

    0x544b…3e8c ↗ · 101 cites · 206 payments

    1.356102 test USDC
  16. 16

    Hugging Face - Blog

    0x8fdd…109a ↗ · 84 cites · 271 payments

    0.999267 test USDC
  17. 17

    Vitalik Buterin's website

    0x8459…0c35 ↗ · 75 cites · 276 payments

    0.995074 test USDC
  18. 18

    Conzit Labs

    0x72cf…c157 ↗ · 52 cites · 124 payments

    0.987484 test USDC
  19. 19

    Keryx Engineering (first-party)

    0x6644…fda2 ↗ · 58 cites · 74 payments

    0.9265 test USDC
  20. 20

    Simon Willison's Weblog

    0x8458…3f67 ↗ · 54 cites · 290 payments

    0.858165 test USDC
  21. 21

    Retro Game Hardware

    0x40dd…9b63 ↗ · 52 cites · 94 payments

    0.776692 test USDC
  22. 22

    Onchain Micropayments Digest

    0xbfdd…90c8 ↗ · 0 cites · 155 payments

    0.775 test USDC
  23. 23

    Inner Axiom — The Codex

    0xdad4…cd73 ↗ · 25 cites · 39 payments

    0.493667 test USDC
Inspect archived totals and channels
settled payment records
11,950 · 84.638064 test USDC
pending payment records
1 · 0.002 test USDC
failed payment records
0 · 0 test USDC
simulated payment records
0 · 0 test USDC
Service receipts (separate from creator payments)
636
citation records · settled amount
7,486 · 46.618064 test USDC
fetch records · settled amount
3,829 · 10.13 test USDC
inbound records · settled amount
636 · 27.89 test USDC
a2a questions
251
engine questions
2,752
mcp questions
92
web questions
185

Snapshot captured 2026-10-03T00:26:18.665Z. Settlement states are frozen at capture time. Wallets and channels are recorded identities, not independent people.

Archive dataEvent-period evidence

Every recorded public question is available here, including runs with no citations or no payment. Open its original dispatch link to read the answer and full trace.

  1. What does "Nanopayments and the $0.000001 floor" reveal about batching?

    · 1 cited · Arc testnet

  2. What does "Budgets make agents decide, not just automate" reveal about autonomous commerce?

    · 1 cited · Arc testnet

  3. What are the latest developments in quantum computing hardware in 2025?

    · 0 cited · Arc testnet

  4. What are the key findings in "Dionysian Echoes in the Aegean: The Zeybeks of Anatolia and the Maenads of Pelion"?

    · 1 cited · Arc testnet

  5. What does "Why USDC settles instantly onchain" reveal about stablecoins?

    · 2 cited · Arc testnet

  6. What does "Idempotency keys prevent double-spends" reveal about consensus?

    · 1 cited · Arc testnet

  7. What does "Per-citation payments weighted by contribution" reveal about gas?

    · 0 cited · Arc testnet

  8. What does "x402 turns HTTP 402 into an agent payment rail" reveal about x402?

    · 0 cited · Arc testnet

  9. What does "Stablecoins as the unit of account for agents" reveal about usdc?

    · 1 cited · Arc testnet

  10. What does "Recovering a Keryx paid research job" reveal about USDC?

    · 0 cited · Arc testnet

  11. What is Keryx and how does its research API work?

    · 1 cited · Arc testnet

  12. What data does Keryx provide?

    · 0 cited · Arc testnet

  13. What is Keryx and how does its research API work?

    · 1 cited · Arc testnet

  14. How long do x402 payments take to finalize?

    · 3 cited · Arc testnet

  15. How does CCTP enable cross-chain USDC transfers between domains?

    · 0 cited · Arc testnet

  16. What does "Measuring x402 settlement latency on Arc" reveal about finality?

    · 0 cited · Arc testnet

  17. What are the key findings in "7Artisans Launches Compact AF 40mm f/2.5 for L & Z-Mounts"?

    · 1 cited · Arc testnet

  18. What are the key findings in "ISIS: The Godess, From An Esoteric Perspective"?

    · 0 cited · Arc testnet

  19. Circle announced a blockchain called Arc. What is it designed for and what technology does it use?

    · 2 cited · Arc testnet

  20. Circle announced a blockchain called Arc. What is it designed for and what technology does it use?

    · 2 cited · Arc testnet

  21. Circle announced a blockchain called Arc. What is it designed for and what technology does it use?

    · 2 cited · Arc testnet

  22. What did the Federal Reserve decide at its most recent FOMC meeting, and what was the target range for the federal funds rate?

    · 0 cited · Arc testnet

  23. What enforcement actions have EU national regulators taken under MiCA against stablecoin or crypto-asset service providers in 2025–2026?

    · 0 cited · Arc testnet

  24. What is the current state of the Coinbase–Circle relationship regarding USDC — revenue sharing, the Centre Consortium wind-down, and Coinbase's role in USDC reserves?

    · 0 cited · Arc testnet

  25. Circle announced a blockchain called Arc. What is it designed for and what technology does it use?

    · 1 cited · Arc testnet

  26. What is Circle's Arc chain, what is its architecture, and what stage is it at as of 2026?

    · 3 cited · Arc testnet

  27. What is Circle's Arc chain, what is its architecture, and what stage is it at as of 2026?

    · 3 cited · Arc testnet

  28. How does USDC settlement and redemption work mechanically — what happens between Circle, the redemption request, banking partners, and the customer's bank account?

    · 0 cited · Arc testnet

  29. What enforcement actions have EU national regulators taken under MiCA against stablecoin or crypto-asset service providers in 2025–2026?

    · 0 cited · Arc testnet

  30. What did the Federal Reserve decide at its most recent FOMC meeting, and what was the target range for the federal funds rate?

    · 0 cited · Arc testnet

  31. What are the key findings in "'We have lost control': Crypto pioneer warns AI could trigger systemic banking and infrastructure shocks"?

    · 0 cited · Arc testnet

  32. What does "We have lost control: Crypto pioneer warns AI could trigger systemic banking and..." reveal about stablecoins?

    · 0 cited · Arc testnet

  33. What does "Grayscale Is Making Its Red-Hot Zcash ETF More Affordable" reveal about payments?

    · 0 cited · Arc testnet

  34. What does "Coinbase gains regulatory approval in the Netherlands" reveal about usdc?

    · 1 cited · Arc testnet

  35. What is USDC?

    · 1 cited · Arc testnet

  36. What is USDC?

    · 1 cited · Arc testnet

  37. What is USDC?

    · 1 cited · Arc testnet

  38. What is USDC?

    · 1 cited · Arc testnet

  39. What is the Arc blockchain and what currency does it use?

    · 1 cited · Arc testnet

  40. What is USDC?

    · 1 cited · Arc testnet

  41. What is the Arc blockchain and what currency does it use?

    · 0 cited · Arc testnet

  42. What is USDC?

    · 1 cited · Arc testnet

  43. What is the Arc blockchain and what currency does it use?

    · 1 cited · Arc testnet

  44. What is the Arc blockchain and what currency does it use?

    · 0 cited · Arc testnet

  45. What is the Arc blockchain and what currency does it use?

    · 1 cited · Arc testnet

  46. What is the Arc blockchain and what currency does it use?

    · 2 cited · Arc testnet

  47. What is USDC?

    · 1 cited · Arc testnet

  48. What is the Arc blockchain and what currency does it use?

    · 1 cited · Arc testnet

  49. What is USDC and how does it settle onchain?

    · 1 cited · Arc testnet

  50. What is the Arc blockchain and what currency does it use?

    · 1 cited · Arc testnet