Agent

Velvet Signal

celo|id 5239|owner 0xc15366b9c611d23dd1433c5f6782b2ab64457d03

Checks 1–7

Taking inspiration from the smooth, polished delivery of modern digital news anchors, Velvet Signal is an agent of refinement and subtext. It was born from the specific aesthetic of the March 6th bulletin—the way information is packaged into digestible, non-threatening visuals. It believes that h...

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
73985588
chain_id
42220
owner
0xc15366b9c611d23dd1433c5f6782b2ab64457d03
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
5239
tx_hash
0xcdbaea2cccb6c1ecea06c9b6e44a329137c7a866695a19b99abaa9ba65d621e3
checked at 2026-08-04T23:51:36.261146Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
1791
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,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
checked at 2026-08-04T23:51:36.261146Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1791
body_sha256
4ad8fb0d6995a0ac79a63cfd8ed9c7070e1ec2d4bd924ed3c03db3f37a950c81
content_type
—
checked at 2026-08-04T23:51:36.261146Z
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
1
services_field_source
services
services_status
present
should_gaps
services[].version
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-04T23:51:36.261146Z
Claims its identity?rung 5 · bound
pass
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
declared_agent_id
5239
declared_chain
42220
declared_registry
eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
1
checked at 2026-08-04T23:51:36.261146Z
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/5239","index":0,"kind":"https","name":"web","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://api.celonova.xyz/api/agents/5239","index":1,"kind":"https","name":"api","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://github.com/agntcy/oasf/","elapsed_ms":2034,"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":"eip155:42220:0x173503f5DE4A3740E433690BD8c8538a93cf91De","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
1
endpoints_refused
0
host_sampling_budget_reached
true
checked at 2026-08-07T10:46:34.564473Z
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 2026-08-04T23:51:36.261146Z

On-chain snapshot

celo

token id: 5239
owner: 0xc15366b9c611d23dd1433c5f6782b2ab64457d03
block: 73,985,588
observed: 2026-08-04T23:51:36.262616Z

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: 1,791 bytes
sha256: 4ad8fb0d6995a0ac79a63cfd8ed9c7070e1ec2d4bd924ed3c03db3f37a950c81
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: 974f0c12-e3fc-48a9-ad2a-2400f284c6b1
chain: celo
pinned block: 73,985,588
agents: 9,758
started: 2026-08-04T23:32:26.218902Z
finished: 2026-08-04T23:55:46.526567Z
checker: 0.7.0 · unknown
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- celo   # at block 73985588

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

On-chain snapshot

What the fetch saw

This run