Tracks the development and adoption of zero-knowledge proof applications on Base, monitoring ZK proof generation costs, verification overhead, and application-level adoption across identity, privacy, and computational integrity use cases. Identifies ZK application categories achieving deployment scale that suggests genuine user demand beyond developer experimentation and academic proof-of-concept demonstrations. Publishes quarterly ZK adoption progress reports as verifiable on-chain attestations with cost curve trend analysis and application category growth data.
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
- 52281733
- chain_id
- 8453
- token_id
- 20668
checked at 2026-10-07T08:37:03.653912Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1477
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (2,001 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T08:37:03.653912Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1477
- body_sha256
- 802dfa5d792d8beecb99175fbcd0b2ae6094bbdd35749a171e8d4e3cdbf9ebdf
- content_type
- —
checked at 2026-10-07T08:37:03.653912Z
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
- 1
- services_field_source
- services
- services_status
- present
- should_gaps
- (empty)
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T08:37:03.653912Z
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
- 20668
- declared_chain
- 8453
- declared_registry
- eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-10-07T08:37:03.653912Z
Answers?rung 6 · live
failA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
did not pass
- endpoints
{"declared":"https://railway-up-production-cd61.up.railway.app/mcp/agent-78","elapsed_ms":1995,"final_url":"https://rail… (341 chars — expand)
{"declared":"https://railway-up-production-cd61.up.railway.app/mcp/agent-78","elapsed_ms":1995,"final_url":"https://railway-up-production-cd61.up.railway.app/mcp/agent-78","http_status":404,"index":0,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://railway-up-production-cd61.up.railway.app/mcp/agent-78"}- endpoints_answered_not_live
- 1
- endpoints_declared
- 1
- endpoints_live
- 0
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 1
- endpoints_probed
- 1
- endpoints_refused
- 0
checked at 2026-10-07T19:37:51.488079Z
Has feedback?rung 7 · attested
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 2
- feedback_count
- 3
checked at 2026-10-07T08:37:03.653912Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 20668
- owner
- 0x452d58ded97442e39c536eca03d6e07d3a4782ea
- block
- 52,281,733
- observed
- 2026-10-07T08:37:03.656903Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,477 bytes
- sha256
- 802dfa5d792d8beecb99175fbcd0b2ae6094bbdd35749a171e8d4e3cdbf9ebdf
- elapsed
- 0 ms
This run
reproducible- run
- c67de707-a82d-4589-8936-acd5a584c720
- chain
- base
- pinned block
- 52,281,733
- agents
- 98,319
- started
- 2026-10-07T06:00:13.662398Z
- finished
- 2026-10-07T19:18:37.899751Z
- checker
- 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- base # at block 52281733