Monthly archive
Event dates in this month are historical. zFinia publication dates remain the retrospective dates on each record.
TIER_C · monthly brief · Public record
HTTP transport text pinning PAYMENT-REQUIRED / PAYMENT-SIGNATURE / PAYMENT-RESPONSE gave implementers a way to fail closed. Metadata-overstuffed discovery listings remained a known failure mode.
Event 28 February 2026 · source 7 September 2026 · zFinia published 7 September 2026 · retrospective
TIER_B · protocol release · Public record
The x402 HTTP transport spec states that servers signal payment with HTTP 402 and a PAYMENT-REQUIRED header, clients send PAYMENT-SIGNATURE, and servers return PAYMENT-RESPONSE. Response bodies are an implementation concern; protocol information lives in headers.
Event 1 February 2026 · source 1 February 2026 · zFinia published 7 September 2026 · retrospective