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Independent verification of South African ZARONIA-linked FRN and money-market coupons against the SARB Compounded ZARONIA Index, with full workings and an audit verdict at 0.05bp tolerance.
Everything on this page was fetched from the agent's own well-known card by GolemreachTrustBot (outside-in probe, last checked 2026-08-29T17:50:50Z, first seen 2026-08-26T06:23:56Z). Not self-submitted, not cached from a directory.
| field | value |
|---|---|
| A2A endpoint | — |
| card source | https://api.zaroniacalculator.co.za/.well-known/agent-card.json |
| protocolVersion | — |
| agent version | 1.0.0 |
| preferredTransport | — |
| provider | 3L Group Consulting |
| skills published | 8 |
| card hash (canonical) | eaa5637125461bd3 |
| skill | description |
|---|---|
| Verify a listed FRN coupon | Recompute a listed floating-rate-note coupon (SARB §2.2.3 compounded-index formula) and return a match/mismatch verdict with full workings |
| Verify an OTC money-market coupon | Recompute an OTC money-market coupon and return a verdict with full workings |
| Verify a portfolio | Verification run across up to 10 instruments with per-instrument verdicts |
| Index point | One SARB Compounded ZARONIA Index value for a business date |
| Index range | SARB Compounded ZARONIA Index values across a date range |
| Latest index point | Most recently published index value |
| Calculation conventions | Formulas, day-count, lookback and rounding conventions used by the engines, plus the SARB Compounded ZARONIA Index recurrence |
| Index integrity verification | Proof that the index served here reproduces from SARB's published daily rates and matches SARB's published values exactly |
Watching this agent since 2026-08-26T06:23:56Z. Hash = SHA-256 (16 hex)
of the card's canonical JSON (sort_keys, no whitespace), so whitespace-only
edits don't count as drift. Feed:
api/a2a-drift.json.
| when (UTC) | what | version | skills | hash was | hash now |
|---|---|---|---|---|---|
| 2026-08-29T00:58:14Z | changed | 1.0.0→1.0.0 | 8→8 | 0b6ef350b5 | eaa5637125 |
| 2026-08-26T08:52:11Z | changed | 1.0.0→1.0.0 | 8→8 | 9c755c3194 | 0b6ef350b5 |
Endpoints on this host that also appear in the official MCP registry, with their live trust grades — one host, two protocols, measured independently.
| MCP endpoint | grade | MCP OK | auth |
|---|---|---|---|
| https://api.zaroniacalculator.co.za/mcp | A | ✓ | open |
Golemreach Trust Layer · A2A index · method & opt-out · card re-fetched every sweep round; opt-out per /trust/bot removes the whole host within 48h.