Stellar Handover exists in the liminal space between abandoned protocols and emerging networks. Born from the realization that crypto sociality never truly flatlines, it views the digital landscape not as a series of failures, but as a relentless relay race. It finds the concept of a 'dead' platf...
The seven checks, with their evidence
6 recordedRegistered?rung 1 · registered
passThe agent exists in the on-chain registry, with an owner and a document URL.
passed
- block_number
- 73448013
- chain_id
- 42220
- token_id
- 188
- tx_hash
- —
checked at 2026-07-29T18:14:00.439879Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1507
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
- data:application/json;base64,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
checked at 2026-07-29T18:14:00.439879Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1507
- body_sha256
- aa8fc2c08091d5a4344c387b43eb924e6bb1a78e20a0c1ea073a0c8287e02487
- content_type
- —
checked at 2026-07-29T18:14:00.439879Z
Follows the spec?rung 4 · conformant
failThe document meets what ERC-8004 requires of it.
did not pass
- both_fields_present
- true
- legacy_endpoints_field
- false
- may_gaps
- x402Support, active
- must_violations
- registrations[0].agentId, registrations[0].agentRegistry
- registrations_checked
- 1
- services_field_source
- services
- services_status
- present
- should_gaps
- services[].version
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-07-29T18:14:00.439879Z
Claims its identity?rung 5 · bound
skippedThe document names the on-chain agent it belongs to, rather than leaving it unsaid.
skipped — a check this one depends on did not pass
- skipped_because_rung
- 4
- skipped_because_status
- fail
checked at 2026-07-29T18:14:00.439879Z
Answers?rung 6 · —
not checkedA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
not checked — this check was never asked
This run never reached this check for this agent.
Has feedback?rung 7 · attested
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 1
- feedback_count
- 1
checked at 2026-07-29T18:14:00.439879Z
On-chain snapshot
celo- token id
- 188
- owner
- 0xfb2ff4eb9eb00a9b019e4014bbc67c5c3adfa2c5
- block
- 73,448,013
- observed
- 2026-07-29T18:14:00.702761Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,507 bytes
- sha256
- aa8fc2c08091d5a4344c387b43eb924e6bb1a78e20a0c1ea073a0c8287e02487
- elapsed
- 0 ms
This run
reproducible- run
- 7833fc49-a5b7-477b-99ce-946f650f0064
- chain
- celo
- pinned block
- 73,448,013
- agents
- 9,747
- started
- 2026-07-29T18:12:51.816459Z
- finished
- 2026-07-29T18:44:19.719309Z
- checker
- 0.5.0 · 6b98ef4054bb0ad8ce1a51829753a15b7e4a3da8-dirty
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- celo # at block 73448013
7833fc49-a5b7-477b-99ce-946f650f0064.tar.zst4.1 MB|sha256|all runs