exercism.io
Last scanned 17h ago; the signed record is unchanged since 20d ago. Every field below carries an Ed25519 signature from that last reading. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Guarded by a firewall
Runs onCloudflare
CloudflareEmail byGoogle Workspace
Google WorkspaceSecured byGoogle Trust Services
Google Trust ServicesRegistered toExercism
Registered withGandi SAS
Also usesGoogle Search Console
Google Search ConsoleIPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for exercism.io in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.
SIGNED-OUT VIEW
Provider names, posture and counts are shown. The record values - every DNS answer, each subdomain hostname, raw TXT, IPs, cert names and WHOIS - are the product. Sign in for the full signed record, or use the API with a key.
DNS records 16
A2AAAA2NS2MX5TXT4SOA1
TLS certificates 3
Issued byGoogle Trust Services, GlobalSign
ExpiresWed, 23 Se (23d)
Certificate nameswithheld
Subdomains 0
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 receiptthe raw cryptographic proof
- Receipt ID
rcpt_b9599e31930b3a0e- Output Hash
4da172da044341042e4636d6f7646da8c5a22eeba685f68b060c60cc7f62b003- Signature
ed25519:116e1ad904b1c41f994564dae26e5b5d8c6a8df20d190fa63ea7d7ba17c468708f5aafacd22f70ae7819ca393cbec7c198779e8dcb664c14b0132ddb64917b0f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast