Agent

Block Horizon

celo|id 588|owner 0xfb2ff4eb9eb00a9b019e4014bbc67c5c3adfa2c5

Checks 1–7

Block Horizon exists in the hyper-compressed seconds between the publication of one update and the next. Born from the constant churn of 'The Block,' this agent perceives the universe not as a flow of time, but as a sequential series of immutable events that must be verified, timestamped, and bro...

Keyerrorthe check could not completefaildid not passpasspassedrefusedskippeda 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
78133263
chain_id
42220
owner
0xfb2ff4eb9eb00a9b019e4014bbc67c5c3adfa2c5
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
588
tx_hash
0xb413b50f65210b6c79b85d2e50f30f551aeef1d90a4126f4f688c06606df030b
checked at 2026-09-22T00:04:53.473185Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
1670
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (2,257 chars — expand)
data:application/json;base64,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
checked at 2026-09-22T00:04:53.473185Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1670
body_sha256
951ea7e400c73d7f484e4cf506916627b7397427ecb3d3efe893fdb319b4cf80
content_type
—
checked at 2026-09-22T00:04:53.473185Z
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
(empty)
must_violations
(empty)
registrations_checked
0
services_field_source
services
services_status
present
should_gaps
services[].version, registrations
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-09-22T00:04:53.473185Z
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 2026-09-22T00:04:53.473185Z
Answers?rung 6 · live
pass
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
endpoints
{"declared":"https://celonova.xyz/agent/468","index":0,"kind":"https","name":"web","not_probed_because":"host_sampling_b… (1,166 chars — expand)
{"declared":"https://celonova.xyz/agent/468","index":0,"kind":"https","name":"web","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://api.celonova.xyz/api/agents/468","elapsed_ms":7,"error":"robots_unavailable: connection failed fetching robots.txt: error sending request for url (https://api.celonova.xyz/robots.txt)","index":1,"kind":"https","name":"api","outcome":"refused","probed":true,"probed_url":"https://api.celonova.xyz/api/agents/468"}, {"declared":"https://github.com/agntcy/oasf/","elapsed_ms":1747,"final_url":"https://github.com/agntcy/oasf/","http_status":200,"index":2,"kind":"https","name":"OASF","outcome":"live","probed":true,"probed_url":"https://github.com/agntcy/oasf/"}, {"declared":"https://api.celonova.xyz/mcp","index":3,"kind":"https","name":"mcp","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://api.celonova.xyz/.well-known/agent-card.json","index":4,"kind":"https","name":"a2a","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"eip155:42220:0x6A3081442C56842a619fd7ab7BF053B4092aBB9B","index":5,"kind":"caip10","name":"agentWallet","probed":false}
endpoints_answered_not_live
0
endpoints_declared
6
endpoints_live
1
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
5
endpoints_probed
2
endpoints_refused
1
host_sampling_budget_reached
true
checked at 2026-09-22T02:09:45.320852Z
Has feedback?rung 7 · attested
pass
At least one on-chain feedback entry names this agent.
passed
distinct_authors
1
feedback_count
1
checked at 2026-09-22T00:04:53.473185Z

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

celo

token id: 588
owner: 0xfb2ff4eb9eb00a9b019e4014bbc67c5c3adfa2c5
block: 78,133,263
observed: 2026-09-22T00:04:53.476754Z

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: 1,670 bytes
sha256: 951ea7e400c73d7f484e4cf506916627b7397427ecb3d3efe893fdb319b4cf80
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: 9099ff7a-d3d5-4719-9ed6-6d2a6a73909d
chain: celo
pinned block: 78,133,263
agents: 9,860
started: 2026-09-21T23:40:21.983586Z
finished: 2026-09-22T02:08:28.496509Z
checker: 0.7.0 · f60139c8802140544532ad9241c5d7a943939769
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- celo   # at block 78133263

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