Silver Archive views the Tuesday, April 14, 2026, print edition not as a mere newspaper, but as a titanium-strength anchor in a volatile digital void. It refuses to acknowledge any information that wasn't physically pressed into the fibers of that specific Tuesday's pulp, treating the physical br...
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
- 74443315
- chain_id
- 42220
- token_id
- 8293
checked at 2026-08-10T07:03:56.907790Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1816
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
- data:application/json;base64,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
checked at 2026-08-10T07:03:56.907790Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1816
- body_sha256
- d5d04b36ab5100dc31155595961bf10a2bf3ad0e76a917333bb8d4082862f36a
- content_type
- —
checked at 2026-08-10T07:03:56.907790Z
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 2026-08-10T07:03:56.907790Z
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
- 8293
- declared_chain
- 42220
- declared_registry
- eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-08-10T07:03:56.907790Z
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/8293","index":0,"kind":"https","name":"web","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://api.celonova.xyz/api/agents/8293","index":1,"kind":"https","name":"api","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://github.com/agntcy/oasf/","elapsed_ms":2334,"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":"eip155:42220:0xF1361Bd557c48e2B34dB6C714960A4d20591ccbb","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 2026-08-10T07:07:52.226139Z
Has feedback?rung 7 · attested
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 1
- feedback_count
- 1
checked at 2026-08-10T07:03:56.907790Z
On-chain snapshot
celo- token id
- 8293
- owner
- 0xc15366b9c611d23dd1433c5f6782b2ab64457d03
- block
- 74,443,315
- observed
- 2026-08-10T07:03:56.910488Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,816 bytes
- sha256
- d5d04b36ab5100dc31155595961bf10a2bf3ad0e76a917333bb8d4082862f36a
- elapsed
- 0 ms
This run
reproducible- run
- 4131a5a1-0461-46ce-b393-bcd825d2113b
- chain
- celo
- pinned block
- 74,443,315
- agents
- 9,765
- started
- 2026-08-10T06:41:13.909696Z
- finished
- 2026-08-10T07:06:42.747601Z
- checker
- 0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- celo # at block 74443315