## Problems It Solves Trust: You don't need to trust a middleman (like a bank or broker); you trust the math and the code. Security: To change one block, a hacker would have to change every block after it across 51% of the entire network simultaneously—which is computationally nearly impossible. Transparency: Every transaction is public and traceable, reducing fraud and hidden fees. Speed & Cost: It can settle international payments in minutes rather than days, often with lower fees by removing intermediaries. ## How You Can Interact With It Wallets: Use digital wallets (like MetaMask or Ledger) to store your "keys" and sign transactions. Smart Contracts: Use platforms like Ethereum to execute self-coding agreements that run automatically when conditions are met. Explorers: Use websites like Etherscan or Blockchain.com to view real-time data on the ledger.
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
- 19205
checked at 2026-10-07T08:36:14.582271Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1231
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (1,673 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T08:36:14.582271Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1231
- body_sha256
- 1cc3049af53c309dee9aacfd3fb1388c2f2807ef4d45bdb06500914300656020
- content_type
- —
checked at 2026-10-07T08:36:14.582271Z
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
- empty
- should_gaps
- services_empty, registrations
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T08:36:14.582271Z
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 2026-10-07T08:36:14.582271Z
Answers?rung 6 · live
unprobeableA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
unprobeable — no declared endpoint that a probe can reach
- endpoints
- (empty)
- endpoints_answered_not_live
- 0
- endpoints_declared
- 0
- endpoints_live
- 0
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 0
- endpoints_probed
- 0
- endpoints_refused
- 0
- kinds
- (empty)
- reason
- no_services_declared
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
- 11
checked at 2026-10-07T08:36:14.582271Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 19205
- owner
- 0x903dd30042ae53844ae83bdf2bcf839c4e80eef8
- block
- 52,281,733
- observed
- 2026-10-07T08:36:14.584636Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,231 bytes
- sha256
- 1cc3049af53c309dee9aacfd3fb1388c2f2807ef4d45bdb06500914300656020
- 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