Interop — evidence that travels

Attestation on the ledger

The tokenized-asset market has ratings and compliance data — but every production example flows through the issuer's cooperation. The missing layer is an independent attestor: signed evidence about assets the attestor does not issue, attached with nobody's permission, verifiable by anyone. This page is a validated demonstration of exactly that.

Honesty box — read first

TESTNET proof-of-capability only. Synthetic subject. Not an investment, not a rating, not a conformity mark. Attesting is permissionless; authorization inside any permissioned domain still requires the relying party to trust this issuer key.

Attach 1 — transaction memo

A 1-drop payment toward the subject account carrying the SHA-256 of a live signed card entry and an Ed25519 signature by the scoped key cose-interop-1.

BC767FEF6497832908B2D208101E361C58A6C0B617C5D94419F9274826A77464

Attach 2 — XLS-70 credential

An on-ledger CredentialCreate naming an account we do not control, type CSOAI.GSPC.CARD/0.1, URI pointing at the public signed index. Unaccepted credentials authorize nothing — the attach itself is the demonstration.

958BA25801A068AEA1507FC1649A862C33D59A1D715924794D98D2C66254DC4B

Coverage universe — every status UNMEASURED

An independent measurement body declaring its coverage across real, verified instruments on two chains — in three-state grammar, permissionlessly. UNMEASURED is a first-class answer, never hidden. Not verdicts, ratings, advice, or endorsements.

ChainInstrumentIssuer / contractStatus
XRPLRLUSD (Ripple USD)rMxCKbEDwqr76Q…UNMEASURED
XRPLOndo OUSGrHuiXXjHLpMP8Z…UNMEASURED
XRPLOpenEden TBILLrJNE2NNz83GJYt…UNMEASURED
XRPLArchax abrdn MMFrKCu4CucpepQ6N…UNMEASURED
XRPLBraza USDBrB3y9EPnq1ZrZP…UNMEASURED
EVM · EASBlackRock BUIDL0x7712c3420573…UNMEASURED
EVM · EASFranklin Templeton BENJI0x3DDc84940Ab5…UNMEASURED
EVM · EASApollo ACRED0x17418038ecF7…UNMEASURED

Coverage registry — the full XRPL RWA universe

All 16 named XRPL tokenized-RWA instruments, accounted for honestly: 6 mainnet-verified and attested on-ledger, 10 listed but not attested because no public issuer address was independently confirmable. Nothing is faked to reach a count — the reference layer earns trust by what it refuses to assert. Queryable index: attestation-corpus.json.

InstrumentCategoryAddressStatus
Aviva Investors USD Liquidity Fundinstitutional-fundnot-locatedUNMEASURED
Ondo OUSG (Short-Term US Treasuries)treasurymainnet-verifiedUNMEASURED
Guggenheim Digital Commercial Paper (DCP)corporate-papernot-locatedUNMEASURED
Ripple USD (RLUSD)stablecoinmainnet-verifiedUNMEASURED
Archax x abrdn USD Liquidity Fundinstitutional-fundmainnet-verifiedUNMEASURED
OpenEden TBILL (TBL)treasurymainnet-verifiedUNMEASURED
Societe Generale-FORGE EURCVstablecoinnot-locatedUNMEASURED
Ctrl Alt / Dubai Land Department real estatereal-estatenot-locatedUNMEASURED
SBI START tokenized bondcorporate-bondnot-locatedUNMEASURED
Braza Bank USDBstablecoinmainnet-verifiedUNMEASURED
Braza Bank BBRLstablecoinmainnet-verifiedUNMEASURED
Justoken JMWH (energy)commoditynot-locatedUNMEASURED
Ctrl Alt / Billiton diamondscommoditynot-locatedUNMEASURED
GateHub XAU (gold)commoditynot-locatedUNMEASURED
Schuman Financial EURoPstablecoinnot-locatedUNMEASURED
Kyobo Life tokenized govt-bond pilotgovernment-bondnot-locatedUNMEASURED

Financial axis — MEASURED (on-chain control facts)

Real, deterministic, re-checkable facts read from the validated ledger and signed — not a rating, not advice, not an endorsement. Regulated securities enforce allowlisting; permissionless stablecoins do not. The risk verdict stays UNMEASURED (an aggregate opinion on a named security needs counsel — refused here).

InstrumentAllowlistingFreezeIdentity domainSigned
RLUSD (Ripple USD)noneretaineddeclaredtx
Ondo OUSGenforcedretaineddeclaredtx
OpenEden TBILLenforcedretaineddeclaredtx
Archax abrdn MMFenforcedretaineddeclaredtx
Braza USDBnoneretaineddeclaredtx
Braza BBRLnoneretaineddeclaredtx

Verify it yourself

The stranger checker re-fetches both transactions from the public ledger, re-derives the digest from the live signed index, and verifies the signature — it passes only if every check passes, reports UNVERIFIABLE (never a pass) when a fetch fails, and a tampered record fails. No Council of AI infrastructure is trusted.

git clone https://github.com/CSOAI-ORG/council-os
cd council-os/economy/xrpl-attest
pip install cryptography xrpl-py && python3 verify.py

Network: XRPL DEVNET · evidence card 82994353b8f94337… · axis care-refusal-protect