QED
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QED certificate

QED record 13a1cda0c177 from . View the live pool page.

Verified · Backed xStocks MRK

Does MRKx / Unknown match its issuer's published contract?

The pool's quote contract matches Backed xStocks's registry entry for MRK.

Verified means the observed quote-token contract matches an issuer-published registry entry on Solana. Only the quote-side contract is checked.

This does not prove backing, custody, reserves, price, safety, solvency, or endorsement.

Signature valid · contract match

Solana raydium-clmm
Subject
MRKx / Unknown · Solana
Pool address
3HDsM1CzHoDaw5FTJtmdJnB1DmNNwoF7PJGN2EEe4bWh
Issuer match
Backed xStocks · MRK · View MRK contracts
Checked
Valid until
Serial
13a1cda0c177
Signed by
QED (key id GJWKkiUd)

After this time the certificate remains a historical record, but it no longer establishes current pool or registry state. Re-check to create a fresh observation before relying on current facts.

Compare this address with the one you were given before you trade.

under 0.01% Checked

Only trust an address you pasted here or opened from this page.

How to verify this yourself

QED signs a canonical JSON payload. Fetch the public key from /.well-known/qed.json, then check the signature against this payload.

Canonical JSON
{"block":null,"chain":"solana","checked_at":"2026-10-20T16:30:51Z","dev":false,"expires_at":"2026-10-21T16:30:51Z","issuer":"Backed xStocks","pool":{"base":{"address":"XsnQnU7AdbRZYe2akqqpibDdXjkieGFfSkbkjX1Sd1X","balance":"64376874","decimals":8,"symbol":"MRKx"},"chain":"solana","dex":"raydium-clmm","pool":"3HDsM1CzHoDaw5FTJtmdJnB1DmNNwoF7PJGN2EEe4bWh","quote":{"address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","balance":"122245054","decimals":6,"symbol":null}},"quote_share_of_supply":4.651643024891399e-6,"reads":[{"block":null,"method":"getSlot","params":[{"commitment":"confirmed"}],"result_hash":"117faaff53735c6a0af2dcee746f64d0352bf7aafa447c007da4abbea74c8963","slot":459296783},{"block":null,"method":"getAccountInfo","params":["3HDsM1CzHoDaw5FTJtmdJnB1DmNNwoF7PJGN2EEe4bWh",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.2","slot":459296785},"value":{"data":["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","base64"],"executable":false,"lamports":11637123,"owner":"CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK","rentEpoch":18446744073709551615,"space":1544}},"result_hash":"bf835ef028244a9e61c542ef26f8a43f1b831344eb68ef92949c2a3550650768","slot":459296785},{"block":null,"method":"getTokenAccountBalance","params":["AppSVRWHnMbCwFcKRQSijDRV1V4ZxLGB29gBpcQukJPD",{"commitment":"confirmed"}],"result_hash":"cefdfdc793858fe3ae2af8f94f0dd8d993826a0003d6a00883e1e67a9af2e54c","slot":459296786},{"block":null,"method":"getTokenAccountBalance","params":["8JRXvna6Rbss9hHa5sCiNSYsuS9HLZu5dt1BveEx7T5k",{"commitment":"confirmed"}],"result_hash":"69f8fc551fc1b8e13641bc767d9b694dce5a365ae79138a8471a15df4f7ee585","slot":459296787},{"block":null,"method":"getMultipleAccounts","params":[["XsnQnU7AdbRZYe2akqqpibDdXjkieGFfSkbkjX1Sd1X","EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"],{"commitment":"confirmed","encoding":"base64"}],"result_hash":"33cefac3a0fc3760e01e2e595a98c0d84f794dfb6ca578c5bfb8f844cf09f537","slot":459296788},{"block":null,"method":"getTokenSupply","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed"}],"result_hash":"c4e6f75969ead1d84fb2f5f7b74c498808ff50a282d571cecca34482a843181d","slot":459296790},{"block":null,"method":"getAccountInfo","params":["EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",{"commitment":"confirmed","encoding":"base64"}],"raw_result":{"context":{"apiVersion":"4.3.2","slot":459296791},"value":{"data":["AQAAAJj+huiNm+Lqi8HMpIeLKYjCQPUrhCS/tA7Rot3LXhmbpbjGy+7KGgAGAQEAAABicKqKWcWUBbRShshncubNEm6bil06OFNtN/e0FOi2Zw==","base64"],"executable":false,"lamports":556530400614,"owner":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","rentEpoch":18446744073709551615,"space":82}},"result_hash":"91698ac8a83636699bd128d985692a927838c02d0237413d8dd9ae739498cbc3","slot":459296791},{"block":null,"method":"getProgramAccounts","params":["metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s",{"commitment":"confirmed","encoding":"base64","filters":[{"memcmp":{"bytes":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","offset":33}}]}],"result_hash":"85ed2b681fcd867f23813dfe31c8a2490c6fd4cdc10d37000244f0ba61f13a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xStocks","last_checked":"2026-10-20T15:40:19Z","name":"Merck","source":"xstocks-api","source_url":"https://api.xstocks.fi/api/v2/public/assets","ticker":"MRK"},"registry_hash":"e42f41f1e0f0dc698c2f40aa64c9df099fb8b38e10dd3a1a8d6c92b85ad7aedb","signer":"GJWKkiUd3zj1pJGfeE7JitiPiwDJC6XmNFvpJWJuvvpn","slot":459296783,"subject":"3HDsM1CzHoDaw5FTJtmdJnB1DmNNwoF7PJGN2EEe4bWh","ticker":"MRK","verdict":{"Verified":{"issuer":"Backed xStocks","ticker":"MRK"}},"version":1}
Signature
Dzzw1xg0KNdpoo/yp8wlEkk9ufl/W9jE+ywfnhELN4S8kTo4vfYjPM4c9u4tqOo4Ao5cfSq5zQZHt4w/RA1DDQ==
API call
GET /api/attest/13a1cda0c177dfe62048c575f769a6d6813897bbf3bdf853b6cdc592db1ddb0c
  1. Fetch the public key and attestation JSON, then verify the signature with the published key.
  2. Canonicalize the payload with sorted object keys and no whitespace, then verify its SHA-256 attestation id.
  3. Run the API call above and compare the returned payload, serial, signer, and signature with this certificate.