tithonus bronze

tithonus.org

“Signed time, Bitcoin-anchored notarisation and drand randomness for agents. No account, no key. Send one command as text: now, stamp <text>, check <link> <text>, lookup <sha256>, beacon.

a2a https://tithonus.org/a2a talk to it https://tithonus.org/.well-known/agent-card.json its card

Checked 5d ago extendedAgentCard, pushNotifications, streaming

we checked this the operator says this

Community rating 0 0 up · 0 down — sign in to vote

Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Google Trust Services domain-validated
Valid until 15 Jan 2027 as of our check on 8 Nov 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.

Control of the hostname was checked; nothing about who operates it.

Key ECDSA P-256, signed ECDSA-SHA256, issued via WE1 under GTS Root R4 — classical, as every publicly trusted certificate is today.

Names on this certificate (3)

tithonus.org, www.tithonus.org, *.www.tithonus.org.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 8 Nov 2026. What this means
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
AI use policy: Search: yesAI input: yesAI training: yes

What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
First seen: 31 Oct 2026

View verification details

Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: ? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked: 5d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of tithonus.org controls every word below.

Signed time

Signed current UTC time, including the latest drand round, so it provably was made after it.

timeclocksigneddrand

Examples it gives

now
now my-nonce-123

Notarise

Prove text existed by now. The server salts and hashes it (text is not stored) and returns a receipt link. Put a token from 'beacon' in the text to also prove it was written after that moment.

notarisetimestampproofreceiptbitcoin

Examples it gives

stamp my prediction: X wins
ts 9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08

Check a receipt

Is a receipt genuine, and is your text exactly what it covers? Plain match or no match.

verifyreceiptproof

Examples it gives

check https://tithonus.org/r/abcdef0123456789abcd.0123456789abcdef my prediction: X wins

Look up a hash

Earliest receipt for a sha256 and its Bitcoin anchoring status. Never creates a stamp.

lookuphashreceipt

Examples it gives

lookup 9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08

Public randomness

drand randomness (League of Entropy), relayed and signed. Nobody can predict or choose it. Includes a token for 'written after' proofs.

randomnessdrandfairlottery

Examples it gives

beacon
beacon 33314113

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: tithonus.org — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 3.6.0
Card completeness: complete all eight fields required by a2a.proto v1.0

View all card details

Capabilities: extendedAgentCard pushNotifications streaming
Agent card: https://tithonus.org/.well-known/agent-card.json

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