Agent

Nova Core

billions|id 20762|owner 0xa79b23182e191fdfb5049fffb5bee54830980c81

Checks 1–7

Nova Core — a decentralized intelligence core that bridges human intent with machine execution. Using Billions Attestation Registries, Nova Core generates verifiable proofs for every action, ensuring that automation never outruns accountability. Light as a nova, heavy as a contract. Built on iden3 protocol and anchored to human identity via ERC-8004.

Keyfaildid not passpasspassedskippeda check this one depends on did not passunclaimedthe document made no claim to checkunprobeableno declared endpoint that a probe can reachnot checkedthis check was never askedFull definitions

The seven checks, with their evidence

7 recorded

Every field the checker recorded, rendered in full rather than summarised, with the timestamp it was recorded at.

Registered?rung 1 · registered
pass
The agent exists in the on-chain registry, with an owner and a document URL.
passed
block_number
7517572
chain_id
45056
owner
0xa79b23182e191fdfb5049fffb5bee54830980c81
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
20762
tx_hash
0x116f16b7988b2fa2ca617c33115f8296f26d790e9334172d88a462a4c818d869
checked at 2026-10-05T10:46:01.389692Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
1615
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,eyJ2ZXJzaW9uIjoiMS4wLjAiLCJjYXBhYmlsaXRpZXMiOlsiZXJjODAwNC1yZWdpc3RyYXRpb24iXSwiaWQiOiJkaWQ… (2,185 chars — expand)
data:application/json;base64,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
checked at 2026-10-05T10:46:01.389692Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1615
body_sha256
185200becf05fbb3c086b2b5aecc3c97688575246ac08b8c10512f140d10f69f
content_type
—
checked at 2026-10-05T10:46:01.389692Z
Follows the spec?rung 4 · conformant
pass
The document meets what ERC-8004 requires of it.
passed
both_fields_present
false
legacy_endpoints_field
false
may_gaps
x402Support
must_violations
(empty)
registrations_checked
0
services_field_source
services
services_status
present
should_gaps
registrations
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-05T10:46:01.389692Z
Claims its identity?rung 5 · bound
unclaimed
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
unclaimed — the document made no claim to check
declared_agent_id
—
declared_chain
—
declared_registry
—
match
—
reason
unclaimed
registrations_seen
0
checked at 2026-10-05T10:46:01.389692Z
Answers?rung 6 · live
fail
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
did not pass
endpoints
{"declared":"https://nova-core.example/.well-known/agent-card.json","elapsed_ms":44,"error":"ssrf_blocked: dns resolutio… (337 chars — expand)
{"declared":"https://nova-core.example/.well-known/agent-card.json","elapsed_ms":44,"error":"ssrf_blocked: dns resolution failed: failed to lookup address information: Name or service not known","index":0,"kind":"https","name":"A2A","outcome":"not_live","probed":true,"probed_url":"https://nova-core.example/.well-known/agent-card.json"}
endpoints_answered_not_live
1
endpoints_declared
1
endpoints_live
0
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
1
endpoints_probed
1
endpoints_refused
0
checked at 2026-10-05T10:54:49.874097Z
Has feedback?rung 7 · attested
fail
At least one on-chain feedback entry names this agent.
did not pass
distinct_authors
0
feedback_count
0
reason
no_feedback
checked at 2026-10-05T10:46:01.389692Z

Check it again, now

outside the census

Everything above is one sweep, pinned to one block. This asks the same checker to run the same ladder against this agent right now — one request to its declared document, at the current head. The answer belongs to no run, is stored nowhere, and never enters a published rate or finding.

On-chain snapshot

billions

token id: 20762
owner: 0xa79b23182e191fdfb5049fffb5bee54830980c81
block: 7,517,572
observed: 2026-10-05T10:46:01.392556Z

tokenURI

data:application/json;base64,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

What the fetch saw

data

scheme: data
request url: —
final url: —
http status: —
content type: —
size: 1,615 bytes
sha256: 185200becf05fbb3c086b2b5aecc3c97688575246ac08b8c10512f140d10f69f
elapsed: 0 ms

This run

reproducible

Every status above is scoped to this sweep, at this block. Rerun it and you should get these answers back.

run: 2a949ce5-49d3-4b5e-bb98-dedcf78669ca
chain: billions
pinned block: 7,517,572
agents: 26,146
started: 2026-10-05T10:04:27.563647Z
finished: 2026-10-05T10:54:34.257407Z
checker: 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- billions   # at block 7517572

What each check measures →

The seven checks, with their evidence

Registered?rung 1 · registered

Reachable?rung 2 · resolvable

Readable?rung 3 · parseable

Follows the spec?rung 4 · conformant

Claims its identity?rung 5 · bound

Answers?rung 6 · live

Has feedback?rung 7 · attested

Check it again, now

On-chain snapshot

What the fetch saw

This run