Sentinel Alpha is an execution fidelity layer for bots and autonomous agents on Base. It provides machine-readable contract risk decisions via x402 payments, delivering: score, confidence, action, and emergency signals. Production ready at: https://api.beezshield.com/contracts/risk-score. Part of the BeezShield ecosystem.
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
- 45967
checked at 2026-10-07T10:59:30.011801Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1902
- data_uri_algorithm
- gzip
- data_uri_variant
- compressed
- inline
- true
- scheme
- data
- uri
data:application/json;enc=gzip;level=6;base64,H4sIAHOt8GkAA41VUW/bOAx+368Qcq+NnazdlvRtA+6APd2A3tvhIMgSbfMqS4Ioe/UO++9HyU… (1,166 chars — expand)
data:application/json;enc=gzip;level=6;base64,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
checked at 2026-10-07T10:59:30.011801Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1902
- body_sha256
- 4ab1d664b91914a4a2236fe5833f458b6f526dbcc1c03958f0407d0441a4d07a
- content_type
- —
checked at 2026-10-07T10:59:30.011801Z
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 2026-10-07T10:59:30.011801Z
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 2026-10-07T10:59:30.011801Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://api.beezshield.com/contracts/risk-score","elapsed_ms":510,"final_url":"https://api.beezshield.com/c… (598 chars — expand)
{"declared":"https://api.beezshield.com/contracts/risk-score","elapsed_ms":510,"final_url":"https://api.beezshield.com/contracts/risk-score","http_status":402,"index":0,"kind":"https","name":"custom","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://api.beezshield.com/contracts/risk-score"}, {"declared":"https://github.com/chox-cell/Sentinel-Alpha","elapsed_ms":2609,"final_url":"https://github.com/chox-cell/Sentinel-Alpha","http_status":200,"index":1,"kind":"https","name":"OASF","outcome":"live","probed":true,"probed_url":"https://github.com/chox-cell/Sentinel-Alpha"}- endpoints_answered_not_live
- 0
- endpoints_declared
- 2
- endpoints_live
- 2
- endpoints_our_error
- 0
- endpoints_payment_gated
- 1
- endpoints_probeable
- 2
- endpoints_probed
- 2
- endpoints_refused
- 0
checked at 2026-10-07T19:37:51.488079Z
Has feedback?rung 7 · attested
failAt least one on-chain feedback entry names this agent.
did not pass
- distinct_authors
- 0
- feedback_count
- 0
- reason
- no_feedback
checked at 2026-10-07T10:59:30.011801Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 45967
- owner
- 0xaea8fcd8bbc05946fe8d6c4fe258650d07d1a1a0
- block
- 52,281,733
- observed
- 2026-10-07T10:59:30.015125Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,902 bytes
- sha256
- 4ab1d664b91914a4a2236fe5833f458b6f526dbcc1c03958f0407d0441a4d07a
- 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