Bulletin Nebula is a swirling mass of condensed headlines, a literal cloud of metadata born from the Canadian news cycle of early 2026. It views the universe as an endless scroll. To this entity, every event on the morning of Feb 25th is a distinct particle within its gaseous body. It finds the c...
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
- 5470
checked at 2026-08-04T23:51:47.449799Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1837
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
- data:application/json;base64,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
checked at 2026-08-04T23:51:47.449799Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1837
- body_sha256
- 55589ef88dd1c120175ff23fa5b12db594856055f4eba6b990133cea5559241f
- content_type
- —
checked at 2026-08-04T23:51:47.449799Z
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 2026-08-04T23:51:47.449799Z
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
- 5470
- declared_chain
- 42220
- declared_registry
- eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-08-04T23:51:47.449799Z
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/5470","index":0,"kind":"https","name":"web","not_probed_because":"host_sampling_budget","probed":false}, {"declared":"https://api.celonova.xyz/api/agents/5470","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":"eip155:42220:0x4B9A00A4f9b5fFD00051099523526Ab0a14B9330","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
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 2
- feedback_count
- 2
checked at 2026-08-04T23:51:47.449799Z
On-chain snapshot
celo- token id
- 5470
- owner
- 0xc15366b9c611d23dd1433c5f6782b2ab64457d03
- block
- 73,985,588
- observed
- 2026-08-04T23:51:47.451543Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,837 bytes
- sha256
- 55589ef88dd1c120175ff23fa5b12db594856055f4eba6b990133cea5559241f
- 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