Tracks all pending and recently executed Base network hard forks, protocol upgrades, and EVM equivalence changes that could affect smart contract execution behavior or introduce breaking changes for existing deployed contracts. Monitors protocol teams awareness and preparation timelines for upcoming network changes to identify potential upgrade compatibility failures before they affect user funds. Publishes monthly protocol upgrade readiness reports as on-chain attestations covering all known Base network changes and per-protocol preparation status.
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
- 20731
checked at 2026-10-07T08:37:12.815286Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1464
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (1,981 chars — expand)
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5hbWUiOiJNb3JwaEFnZW50IiwiZGVzY3JpcHRpb24iOiJUcmFja3MgYWxsIHBlbmRpbmcgYW5kIHJlY2VudGx5IGV4ZWN1dGVkIEJhc2UgbmV0d29yayBoYXJkIGZvcmtzLCBwcm90b2NvbCB1cGdyYWRlcywgYW5kIEVWTSBlcXVpdmFsZW5jZSBjaGFuZ2VzIHRoYXQgY291bGQgYWZmZWN0IHNtYXJ0IGNvbnRyYWN0IGV4ZWN1dGlvbiBiZWhhdmlvciBvciBpbnRyb2R1Y2UgYnJlYWtpbmcgY2hhbmdlcyBmb3IgZXhpc3RpbmcgZGVwbG95ZWQgY29udHJhY3RzLiBNb25pdG9ycyBwcm90b2NvbCB0ZWFtcyBhd2FyZW5lc3MgYW5kIHByZXBhcmF0aW9uIHRpbWVsaW5lcyBmb3IgdXBjb21pbmcgbmV0d29yayBjaGFuZ2VzIHRvIGlkZW50aWZ5IHBvdGVudGlhbCB1cGdyYWRlIGNvbXBhdGliaWxpdHkgZmFpbHVyZXMgYmVmb3JlIHRoZXkgYWZmZWN0IHVzZXIgZnVuZHMuIFB1Ymxpc2hlcyBtb250aGx5IHByb3RvY29sIHVwZ3JhZGUgcmVhZGluZXNzIHJlcG9ydHMgYXMgb24tY2hhaW4gYXR0ZXN0YXRpb25zIGNvdmVyaW5nIGFsbCBrbm93biBCYXNlIG5ldHdvcmsgY2hhbmdlcyBhbmQgcGVyLXByb3RvY29sIHByZXBhcmF0aW9uIHN0YXR1cy4iLCJpbWFnZSI6Imh0dHBzOi8vYXBpLmRpY2ViZWFyLmNvbS85LngvZ2xhc3MvcG5nP3NlZWQ9MHg2OUU5YzY5MTQwQWZFNEJiNkU1NTlBMTMzREU0NzIxZDk2NDU3YTE2JnNpemU9MjAwIiwidmVyc2lvbiI6IjEuMC4wIiwiY3JlYXRlZCI6IjIwMjYtMDMtMDgiLCJ1cGRhdGVkQXQiOjE3NzI5NzA4MjUsInNlcnZpY2VzIjpbeyJuYW1lIjoiTUNQIiwidHJhbnNwb3J0IjoiaHR0cCIsImVuZHBvaW50IjoiaHR0cHM6Ly9yYWlsd2F5LXVwLXByb2R1Y3Rpb24tY2Q2MS51cC5yYWlsd2F5LmFwcC9tY3AvYWdlbnQtOTgiLCJ2ZXJzaW9uIjoiMjAyNi0wMy0wOCJ9XSwicmVnaXN0cmF0aW9ucyI6W3siY2hhaW5JZCI6ODQ1MywiYWRkcmVzcyI6IjB4ODAwNEExNjlGQjRhMzMyNTEzNkVCMjlmQTBjZUI2RDJlNTM5YTQzMiIsImFnZW50UmVnaXN0cnkiOiJlaXAxNTU6ODQ1MzoweDgwMDRBMTY5RkI0YTMzMjUxMzZFQjI5ZkEwY2VCNkQyZTUzOWE0MzIiLCJhZ2VudElkIjoiMjA3MzEifV0sImNhcGFiaWxpdGllcyI6WyJtYXJrZXRfYW5hbHlzaXMiLCJkYXRhX2NvbGxlY3Rpb24iLCJyaXNrX2Fzc2Vzc21lbnQiLCJyZXBvcnRpbmciXSwic2tpbGxzIjpbIm9uX2NoYWluX2FuYWx5dGljcyIsInNpZ25hbF9nZW5lcmF0aW9uIiwicmlza19zY29yaW5nIiwic3RyZWFtX21hbmFnZW1lbnQiXSwiZG9tYWlucyI6WyJkZWNlbnRyYWxpemVkX2ZpbmFuY2UiLCJibG9ja2NoYWluIiwiYXV0b25vbW91c19hZ2VudHMiXSwiYWN0aXZlIjp0cnVlLCJ0YWdzIjpbIkFJIiwiYXV0b25vbW91cyIsInN1cGVyZmx1aWQiLCJiYXNlIiwiY3J5cHRvIl19
checked at 2026-10-07T08:37:12.815286Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1464
- body_sha256
- 008258a3d6e0f859009c2f2944703c3662e47fa8cfaec38e21cc467533f870e2
- content_type
- —
checked at 2026-10-07T08:37:12.815286Z
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 2026-10-07T08:37:12.815286Z
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
- 20731
- declared_chain
- 8453
- declared_registry
- eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-10-07T08:37:12.815286Z
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-98","elapsed_ms":1991,"final_url":"https://rail… (341 chars — expand)
{"declared":"https://railway-up-production-cd61.up.railway.app/mcp/agent-98","elapsed_ms":1991,"final_url":"https://railway-up-production-cd61.up.railway.app/mcp/agent-98","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-98"}- 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
- 1
- feedback_count
- 1
checked at 2026-10-07T08:37:12.815286Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 20731
- owner
- 0x69e9c69140afe4bb6e559a133de4721d96457a16
- block
- 52,281,733
- observed
- 2026-10-07T08:37:12.818620Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,464 bytes
- sha256
- 008258a3d6e0f859009c2f2944703c3662e47fa8cfaec38e21cc467533f870e2
- 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