sicher.halowerk.com
Recomputes every record hash from a canonical JSON representation of id, sequence, timestamp, previous_hash and payload, then checks that each record points to the hash of the record before it. If a root_hash is supplied, the same computed record hashes are folded into a deterministic binary Merkle tree with the last leaf duplicated on odd levels.
Offering
- Provider
- sicher.halowerk.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Blockchain And Crypto
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://sicher.halowerk.com/v1/log-chain-verify- MIME type
- Not provided
- First seen
- 2026-10-16T01:57:40.935Z
- Last seen
- Tags
- None supplied
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
}
]Observed health
- Status
- Healthy
- Latest latency
- 323 ms
- Average latency
- 570 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 7 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"records": {
"description": "Audit records in chain order.",
"items": {
"additionalProperties": false,
"properties": {
"hash": {
"description": "Claimed SHA-256 hash of this record.",
"maxLength": 71,
"minLength": 64,
"type": "string"
},
"id": {
"description": "Stable event id.",
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"payload": {
"description": "Event payload to include in the record hash."
},
"previous_hash": {
"anyOf": [
{
"maxLength": 71,
"minLength": 64,
"type": "string"
},
{
"type": "null"
}
],
"description": "Hash of the previous record, or null for the first record."
},
"sequence": {
"description": "Monotonic event position.",
"maximum": 1000000000,
"minimum": 0,
"type": "integer"
},
"timestamp": {
"description": "Event time as supplied by the log producer.",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"id",
"sequence",
"timestamp",
"previous_hash",
"payload",
"hash"
],
"type": "object"
},
"maxItems": 500,
"minItems": 1,
"type": "array"
},
"require_monotonic_sequence": {
"default": true,
"description": "Require sequence numbers to increase by one.",
"type": "boolean"
},
"root_hash": {
"description": "Optional claimed Merkle root over the computed record hashes.",
"maxLength": 71,
"minLength": 64,
"type": "string"
}
},
"required": [
"records"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"records": {
"description": "Audit records in chain order.",
"items": {
"additionalProperties": false,
"properties": {
"hash": {
"description": "Claimed SHA-256 hash of this record.",
"maxLength": 71,
"minLength": 64,
"type": "string"
},
"id": {
"description": "Stable event id.",
"maxLength": 160,
"minLength": 1,
"type": "string"
},
"payload": {
"description": "Event payload to include in the record hash."
},
"previous_hash": {
"anyOf": [
{
"maxLength": 71,
"minLength": 64,
"type": "string"
},
{
"type": "null"
}
],
"description": "Hash of the previous record, or null for the first record."
},
"sequence": {
"description": "Monotonic event position.",
"maximum": 1000000000,
"minimum": 0,
"type": "integer"
},
"timestamp": {
"description": "Event time as supplied by the log producer.",
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"required": [
"id",
"sequence",
"timestamp",
"previous_hash",
"payload",
"hash"
],
"type": "object"
},
"maxItems": 500,
"minItems": 1,
"type": "array"
},
"require_monotonic_sequence": {
"default": true,
"description": "Require sequence numbers to increase by one.",
"type": "boolean"
},
"root_hash": {
"description": "Optional claimed Merkle root over the computed record hashes.",
"maxLength": 71,
"minLength": 64,
"type": "string"
}
},
"required": [
"records"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}