If you meant something different by “SUP” (like supplement, support, or another acronym), let me know and I’ll adjust the description.
The seven checks, with their evidence
7 recordedRegistered?rung 1 · registered
passThe agent exists in the on-chain registry, with an owner and a document URL.
passed
- block_number
- 52281733
- chain_id
- 8453
- token_id
- 22715
checked at 2026-10-07T08:38:40.968161Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 619
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (857 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T08:38:40.968161Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 619
- body_sha256
- 214442847ccf7ac5df7095d31581767cafc358ecb0aac6e08f8ac7e698887eab
- content_type
- —
checked at 2026-10-07T08:38:40.968161Z
Follows the spec?rung 4 · conformant
passThe document meets what ERC-8004 requires of it.
passed
- both_fields_present
- false
- legacy_endpoints_field
- false
- may_gaps
- x402Support, supportedTrust
- must_violations
- (empty)
- registrations_checked
- 0
- services_field_source
- services
- services_status
- present
- should_gaps
- services[].version, registrations
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T08:38:40.968161Z
Claims its identity?rung 5 · bound
unclaimedThe 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 2026-10-07T08:38:40.968161Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://www.youtube.com/","elapsed_ms":465,"final_url":"https://www.youtube.com/","http_status":200,"index"… (222 chars — expand)
{"declared":"https://www.youtube.com/","elapsed_ms":465,"final_url":"https://www.youtube.com/","http_status":200,"index":0,"kind":"https","name":"MCP","outcome":"live","probed":true,"probed_url":"https://www.youtube.com/"}- endpoints_answered_not_live
- 0
- endpoints_declared
- 1
- endpoints_live
- 1
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 1
- endpoints_probed
- 1
- endpoints_refused
- 0
checked at 2026-10-07T19:37:51.488079Z
Has feedback?rung 7 · attested
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 1
- feedback_count
- 2
checked at 2026-10-07T08:38:40.968161Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 22715
- owner
- 0xddfe5cd9e55c6364947b23e8c0909cfc516e6423
- block
- 52,281,733
- observed
- 2026-10-07T08:38:40.971658Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 619 bytes
- sha256
- 214442847ccf7ac5df7095d31581767cafc358ecb0aac6e08f8ac7e698887eab
- elapsed
- 0 ms
This run
reproducible- run
- c67de707-a82d-4589-8936-acd5a584c720
- chain
- base
- pinned block
- 52,281,733
- agents
- 98,319
- started
- 2026-10-07T06:00:13.662398Z
- finished
- 2026-10-07T19:18:37.899751Z
- checker
- 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- base # at block 52281733