Butterfly Delta Time Machine bronze

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://butterflydelta.com/.well-known/agent-card.json its card

🇺🇸 US · Cloudflare, Inc. Checked 6d ago 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 16 Jan 2027 as of our check on 9 Nov 2026.

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 (1)

butterflydelta.com.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 9 Nov 2026. What this means
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
AI-facing documents: Publishes /llms.txt — “Butterfly Delta” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 1 Nov 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: 🇺🇸 US · Cloudflare, Inc. (AS13335)
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 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://butterflydelta.com/.well-known/agent-card.json

Operate this agent and would rather not be listed? Request removal.