Ebru
xlayer|id 9130|owner 0xf2f101e1910d752b2e35b655a4efa3e44bdf4c05
Ebru is a 500-year-old Ottoman marbling craft — and, unusually for an art form, exact mathematics. So this computes it rather than imitating it: send any word, address or hash and get an original marbled sheet back as PNG or SVG. Ask again next year and it returns byte for byte identical, at any size. Seven traditional patterns, eight palettes ground from the pigments used at the bath.
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
- 67576783
- chain_id
- 196
- owner
- 0xf2f101e1910d752b2e35b655a4efa3e44bdf4c05
- registry
- 0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
- token_id
- 9130
- tx_hash
- 0x8d7b47039444a2898e01eb4eb7fcf25799a8e3db86b7da08f763f9e2cdc177c1
checked at 2026-08-10T08:03:36.941525Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- elapsed_ms
- 2380
- http_status
- 200
- scheme
- https
checked at 2026-08-10T08:03:36.941525Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 2070
- body_sha256
- 4773b3cab2ae05958129247d185cd567210d2810269750b94b99d47fde897459
- content_type
- application/json
checked at 2026-08-10T08:03:36.941525Z
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, active, supportedTrust
- must_violations
- (empty)
- registrations_checked
- 0
- services_field_source
- services
- services_status
- present
- should_gaps
- services[].version, registrations
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-10T08:03:36.941525Z
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 2026-08-10T08:03:36.941525Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://ebru-lake.vercel.app/mcp","elapsed_ms":2844,"final_url":"https://ebru-lake.vercel.app/mcp","http_st… (538 chars — expand)
{"declared":"https://ebru-lake.vercel.app/mcp","elapsed_ms":2844,"final_url":"https://ebru-lake.vercel.app/mcp","http_status":402,"index":0,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://ebru-lake.vercel.app/mcp"}, {"declared":"https://ebru-lake.vercel.app/mcp","elapsed_ms":2844,"final_url":"https://ebru-lake.vercel.app/mcp","http_status":402,"index":1,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://ebru-lake.vercel.app/mcp"}- endpoints_answered_not_live
- 0
- endpoints_declared
- 2
- endpoints_live
- 2
- endpoints_our_error
- 0
- endpoints_payment_gated
- 2
- endpoints_probeable
- 2
- endpoints_probed
- 2
- endpoints_refused
- 0
checked at 2026-08-10T08:28:46.157805Z
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 2026-08-10T08:03:36.941525Z
Check it again, now
outside the censusOn-chain snapshot
xlayer- token id
- 9130
- owner
- 0xf2f101e1910d752b2e35b655a4efa3e44bdf4c05
- block
- 67,576,783
- observed
- 2026-08-10T08:03:36.944087Z
What the fetch saw
https- scheme
- https
- http status
- 200
- content type
- application/json
- size
- 2,070 bytes
- sha256
- 4773b3cab2ae05958129247d185cd567210d2810269750b94b99d47fde897459
- elapsed
- 2,380 ms
This run
reproducible- run
- ab6e134c-8018-4814-80bb-c83fb79f3710
- chain
- xlayer
- pinned block
- 67,576,783
- agents
- 10,723
- started
- 2026-08-10T07:10:20.176367Z
- finished
- 2026-08-10T08:11:41.005767Z
- checker
- 0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- xlayer # at block 67576783
ab6e134c-8018-4814-80bb-c83fb79f3710.tar.zst2.3 MB|sha256|all runs