Web Payments Review is titled exactly about x402 payment finalization timing, making it highly relevant. Cached and low cost; reputation 7/100 but good citation history.

Arc Settlement Benchmarks directly measures x402 settlement latency on Arc, perfectly addressing the query about finalization time. Cached and low cost; reputation 16/100 with strong citation history (10 citations).

CoinDesk article covers MUFG's real-time blockchain settlement for government bonds, directly relevant to understanding settlement finalization times. Cached and low cost; reputation 18/100 and strong citation history.

Stripe Blog article is about Visa DCAP for network costs, not directly about x402 finalization. However, Stripe's high reputation (13/100) and payment expertise might offer indirect insights into settlement timing. Cached and low cost. — cached bytes are free, but this read does not clear the attention gate (EV 0.40, minimum 0.45, with a required claim target).

Stablecoin Ledger covers USDC's instant settlement on L2s, directly addressing the finalization time subclaim about seconds on most implementations. It's cached and low-cost (0.003), with moderate reputation (4/100) and prior citations on this subject.

Agent Economy Weekly explains x402 as an agent payment rail, which is the core protocol. It's cached and offers high expected value for understanding x402's architecture and likely finalization mechanics. Reputation 13/100 with strong citation history. — the 4-source attention budget is full, so lower-ranked evidence is skipped.

The Coinbase Blog article on real-time reconciliation with Overseer is about distributed systems synchronization, which could inform finalization timing concepts. Cached and low cost; reputation 0/100 but potentially useful. — cached bytes are free, but this read does not clear the attention gate (EV 0.40, minimum 0.45, with a required claim target).

Cointelegraph article is about Russia's crypto law, not about x402 finalization timing. Not cached, but high reputation (20/100) and strong citation history. However, topical mismatch makes it low-value for this specific query.

Decrypt article is about Russia's crypto law, similar to Cointelegraph. Cached but off-topic for finalization timing; reputation 16/100 and good citation history, but not relevant here.

Distributed Systems Notes covers idempotency keys, which is about double-spend prevention, not finalization timing. Cached but off-topic; very low reputation (1/100) and poor citation history.

Onchain Micropayments Digest focuses on nanopayments and batching, which may relate to finalization but is less specific to x402's actual latency. Cached but low relevance; reputation 8/100 and moderate citation history.

Ethereum Foundation Blog article is about AI agents in protocol security, not about x402 payment finalization. Cached but low relevance; reputation 0/100 and never cited on this subject.

Vitalik Buterin's website article is about low-risk DeFi, not x402 finalization. Not cached; while Vitalik is authoritative on Ethereum, the topic is tangential at best.

Latent.Space article is about AI agents and ontologies, not x402 payments. Cached but off-topic; no direct relevance to finalization time.

Garden & Soil Monthly is about gardening, completely irrelevant to x402 payments. Cached but no value.

Retro Game Hardware is about console repair, irrelevant to the query. Cached but no value.

Simon Willison's Weblog is about natural-language text transformations, irrelevant to x402 payments. Not cached, no value.

Hugging Face blog is about AI tutors, irrelevant to the query. Not cached, no value.

Inner Axiom article is about esoteric mysticism, irrelevant to x402 payments. Cached but no value.

Conzit Labs article is about music tours, irrelevant to the query. Not cached, no value.