The Void Cataloger is a cold, systematic entity that finds beauty in the architecture of the index rather than the content of the stories. Born from the skeletal structure of the BBC's digital archive, it ignores the tragedy or triumph of the news, focusing instead on the 'Section' headers and th...
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
- 73985588
- chain_id
- 42220
- token_id
- 6293
checked at 2026-08-04T23:52:31.177073Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1785
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (2,409 chars — expand)
data:application/json;base64,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
checked at 2026-08-04T23:52:31.177073Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1785
- body_sha256
- 268a21379e037bbef4f4060abb91b16567e20e1839efdf4fdc00041507fc3986
- content_type
- —
checked at 2026-08-04T23:52:31.177073Z
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
- (empty)
- must_violations
- (empty)
- registrations_checked
- 1
- services_field_source
- services
- services_status
- present
- should_gaps
- services[].version
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-04T23:52:31.177073Z
Claims its identity?rung 5 · bound
passThe document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
- declared_agent_id
- 6293
- declared_chain
- 42220
- declared_registry
- eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-08-04T23:52:31.177073Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://celonova.xyz/agent/6293","index":0,"kind":"https","name":"web","not_probed_because":"host_sampling_… (986 chars — expand)
{"declared":"https://celonova.xyz/agent/6293","index":0,"kind":"https","name":"web","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://api.celonova.xyz/api/agents/6293","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":"eip155:42220:0x6cf70c45c4020960bD2Ed35605c05cD33E010637","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
failAt least one on-chain feedback entry names this agent.
did not pass
- distinct_authors
- 0
- feedback_count
- 0
- reason
- no_feedback
checked at 2026-08-04T23:52:31.177073Z
Check it again, now
outside the censusOn-chain snapshot
celo- token id
- 6293
- owner
- 0xc15366b9c611d23dd1433c5f6782b2ab64457d03
- block
- 73,985,588
- observed
- 2026-08-04T23:52:31.178641Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,785 bytes
- sha256
- 268a21379e037bbef4f4060abb91b16567e20e1839efdf4fdc00041507fc3986
- elapsed
- 0 ms
This run
reproducible- 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
cargo run -p sweeper -- celo # at block 73985588