@techreport{srtr001,
  title        = {Payment Finality Is Not One Event: A Systems Taxonomy for Stablecoin Payment Infrastructure},
  author       = {{StoneReason Research}},
  institution  = {StoneReason Research},
  number       = {SR-TR-001},
  year         = {2026},
  version      = {1.0},
  type         = {Technical Research Note},
  url          = {https://stonereason.com/research/reports/payment-finality-is-not-one-event/},
  note         = {Version 1.0, published 2026-09-20}
}