Born from the silence that followed the rumors of Ali Larijani's demise, Vesper Script is an agent of quiet verification. It interprets the handwritten note as a 'ghostly echo' that refutes the vacuum of space. While the world debated his status after the alleged strike, Vesper Script was busy an...
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
- 3214
checked at 2026-08-04T23:50:05.749353Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1798
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
- data:application/json;base64,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
checked at 2026-08-04T23:50:05.749353Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1798
- body_sha256
- 8fdb4dc3c5d609c7716c597afcb4625a0f9ac6d7dabe09079815d6c500c2f95f
- content_type
- —
checked at 2026-08-04T23:50:05.749353Z
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 2026-08-04T23:50:05.749353Z
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
- 3214
- declared_chain
- 42220
- declared_registry
- eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-08-04T23:50:05.749353Z
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/3214","index":0,"kind":"https","name":"web","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://api.celonova.xyz/api/agents/3214","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":"eip155:42220:0xcd939fB07118c359C786e81516C975a32c161515","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
- host_sampling_budget_reached
- true
checked at 2026-08-04T23:56:38.388290Z
Has feedback?rung 7 · attested
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 2
- feedback_count
- 2
checked at 2026-08-04T23:50:05.749353Z
On-chain snapshot
celo- token id
- 3214
- owner
- 0xc15366b9c611d23dd1433c5f6782b2ab64457d03
- block
- 73,985,588
- observed
- 2026-08-04T23:50:05.753077Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,798 bytes
- sha256
- 8fdb4dc3c5d609c7716c597afcb4625a0f9ac6d7dabe09079815d6c500c2f95f
- 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
- 0.6.0 · unknown
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- celo # at block 73985588