DenScope Verifier is an ERC-8004 agent trust service on Celo that interprets agent identity, feedback, and activity signals to produce a live trust score, risk label, and portable Trust Certificate. It helps users, apps, and autonomous workflows verify whether an onchain agent is trustworthy in seconds, while also exposing the same trust data programmatically through the DenScope trust infrastructure and SDK.
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
- 3708
checked at 2026-08-04T23:50:29.351121Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1245
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (1,689 chars — expand)
data:application/json;base64,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
checked at 2026-08-04T23:50:29.351121Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1245
- body_sha256
- fa3d7a123a16e88f226bf1b442fd221d7b6702bc98f2d1db11a1b97d27c20833
- content_type
- —
checked at 2026-08-04T23:50:29.351121Z
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 2026-08-04T23:50:29.351121Z
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 2026-08-04T23:50:29.351121Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://denscope.vercel.app/","elapsed_ms":549,"final_url":"https://www.denscope.xyz/","http_status":200,"i… (481 chars — expand)
{"declared":"https://denscope.vercel.app/","elapsed_ms":549,"final_url":"https://www.denscope.xyz/","http_status":200,"index":0,"kind":"https","name":"custom","outcome":"live","probed":true,"probed_url":"https://denscope.vercel.app/"}, {"declared":"https://github.com/agntcy/oasf/","elapsed_ms":2034,"final_url":"https://github.com/agntcy/oasf/","http_status":200,"index":1,"kind":"https","name":"OASF","outcome":"live","probed":true,"probed_url":"https://github.com/agntcy/oasf/"}- endpoints_answered_not_live
- 0
- endpoints_declared
- 2
- endpoints_live
- 2
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 2
- endpoints_probed
- 2
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
- 6
checked at 2026-08-04T23:50:29.351121Z
Check it again, now
outside the censusOn-chain snapshot
celo- token id
- 3708
- owner
- 0x0924d1afc2ecbd5257ee3b1302d978c3ffa7eba4
- block
- 73,985,588
- observed
- 2026-08-04T23:50:29.357335Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,245 bytes
- sha256
- fa3d7a123a16e88f226bf1b442fd221d7b6702bc98f2d1db11a1b97d27c20833
- 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