Self-Radiance Web Attestation
Returns an Ed25519-signed witness-only byte-observation attestation for a caller-supplied HTTPS URL.
OtherLiveeip155:8453Exactvia cdp
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$6.00
Verified settled volume
6 settlements proven x402 by their on-chain EIP-3009 marker.
$1.00
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-06-21 05:28Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x155463b78af48b2db07583c266b18e35bee4eed7The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
1USDC≈ $1 USD
on Base · exact scheme
Pay 1 USDC on Base to 0x1554…4eed7. The signed payment is good for 5 minutes.
- Paid to
- 0x1554…4eed7
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1000000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x155463b78af48b2db07583c266b18e35bee4eed7",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"kid": "web-attestation-2026-06-14",
"payload": {
"kid": "web-attestation-2026-06-14",
"body": {
"hash_alg": "sha-256",
"max_bytes": 1048576,
"truncated": false,
"sha256_hex": "0000000000000000000000000000000000000000000000000000000000000000",
"bytes_hashed": 1256,
"hash_subject": "response_body_bytes",
"complete_body_observed": true
},
"claims": "none",
"request": {
"url": "https://example.com/",
"method": "GET",
"redirect_policy": "manual_no_follow"
},
"response": {
"ok": true,
"http_status": 200,
"content_type": "text/html"
},
"observed_at": "2026-06-14T00:00:00.000Z",
"human_notice": "Byte-observation receipt only. Attests that this endpoint observed the above response at the stated time. No claim as to truth, legitimacy, ownership, or trustworthiness of the content.",
"attestation_id": "WA-example",
"attestation_type": "byte_observation.v1",
"canonicalization": "RFC8785-JCS"
},
"signature": "base64url-ed25519-signature-over-canonical-payload"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"payload",
"signature",
"kid"
],
"properties": {
"kid": {
"type": "string"
},
"payload": {
"type": "object",
"required": [
"attestation_type",
"kid",
"attestation_id",
"observed_at",
"canonicalization",
"request",
"response",
"body",
"claims",
"human_notice"
],
"properties": {
"kid": {
"type": "string"
},
"body": {
"type": "object",
"required": [
"hash_alg",
"sha256_hex",
"hash_subject",
"bytes_hashed",
"complete_body_observed",
"truncated",
"max_bytes"
],
"properties": {
"hash_alg": {
"type": "string",
"const": "sha-256"
},
"max_bytes": {
"type": "number",
"const": 1048576
},
"truncated": {
"type": "boolean"
},
"sha256_hex": {
"type": "string",
"pattern": "^[0-9a-f]{64}$"
},
"bytes_hashed": {
"type": "number"
},
"hash_subject": {
"type": "string",
"const": "response_body_bytes"
},
"complete_body_observed": {
"type": "boolean"
}
},
"additionalProperties": false
},
"claims": {
"type": "string",
"const": "none"
},
"request": {
"type": "object",
"required": [
"method",
"url",
"redirect_policy"
],
"properties": {
"url": {
"type": "string"
},
"method": {
"type": "string",
"const": "GET"
},
"redirect_policy": {
"type": "string",
"const": "manual_no_follow"
}
},
"additionalProperties": false
},
"response": {
"type": "object",
"required": [
"http_status",
"ok",
"content_type"
],
"properties": {
"ok": {
"type": "boolean"
},
"http_status": {
"type": "number"
},
"content_type": {
"type": "string"
}
},
"additionalProperties": false
},
"observed_at": {
"type": "string"
},
"human_notice": {
"type": "string",
"const": "Byte-observation receipt only. Attests that this endpoint observed the above response at the stated time. No claim as to truth, legitimacy, ownership, or trustworthiness of the content."
},
"attestation_id": {
"type": "string"
},
"attestation_type": {
"type": "string",
"const": "byte_observation.v1"
},
"canonicalization": {
"type": "string",
"const": "RFC8785-JCS"
}
},
"additionalProperties": false
},
"signature": {
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-16 17:38Z
- Last indexed by Roundhouse
- 2026-07-16 20:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-14 02:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Self-Radiance Web Attestation and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Self-Radiance%20Web%20Attestation' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://web-attestation.selfradiance.workers.dev/attest, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.