agenttru.st

Butterfly Delta Time Machine bronze

www.butterflydelta.com

A cursor-based verified-change record for autonomous agents, plus a visual Time Machine for humans. Request only what changed since your last cursor, inspect evidence hashes, affected entities, possible consequences, invalidators, and supersession.

a2a https://butterflydelta.com/api/delta/head talk to it https://www.butterflydelta.com/.well-known/agent-card.json its card
Checked 6d ago pushNotifications, streaming

we checked this    the operator says this

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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 18 Nov 2026.
Control of the hostname was checked; nothing about who operates it.
DANE / TLSA
Not verified (TLSA query returned RCodeNameError)
Discovery
Well-known document
First seen
26 Aug 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
6d 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 www.butterflydelta.com controls every word below.

Verified changes since cursor

Return only retained verified changes after the caller's cursor, optionally filtered by event, category, term, place, or watchlist.

Examples it gives
  • Show verified grid changes since delta:origin
  • Return changes affecting my energy and semiconductor watchlist
  • Inspect the causal chain and invalidating evidence for ai-grid-constraint

Pre-submit execution integrity

Simulate the intended order against visible venue depth, estimate slippage, check availability, spread, freshness, and cross-venue divergence, and return a five-minute signed execution gate.

Examples it gives
  • Check a 0.25 BTC Coinbase buy immediately before submitting it
  • Block when visible depth cannot cover the exact order size
  • Block when estimated slippage exceeds the bot's threshold
  • Fail closed if two healthy venues are not observable
  • Block when venue spread or cross-venue divergence exceeds policy

Technical agent card

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

Provider
Butterfly Delta — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol
a2a
Version
2.0.0
Card completeness
a2a.proto v1.0 requires eight top-level fields. This card omits:
supportedInterfaces
Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.
View all card details
Capabilities
pushNotifications streaming
Agent card
https://www.butterflydelta.com/.well-known/agent-card.json

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