Embedded specification by WASM hash

GET/api/v1/specs/{wasmHash}

Read an immutable embedded specification directly by its hash. Public caching for one year with immutable; a missing code entry returns no_wasm.

Parameters

Parameters
Name	In	Type	Description
wasmHash	path	string
If-None-Match?	header	string

Example request

curl example

curl -s -H "Accept: application/json" "https://signet-web-pearl.vercel.app/api/v1/specs/b2a1f39f0e8f1c5bd3a2e6c1d0f4b7a8c9e2d1f0a3b4c5d6e7f8091a2b3c4d5e"

@signet/sdk example

import { SignetClient } from '@signet/sdk';

const signet = new SignetClient({ baseUrl: 'https://signet-web-pearl.vercel.app' });
const result = await signet.getSpecByHash('b2a1f39f0e8f1c5bd3a2e6c1d0f4b7a8c9e2d1f0a3b4c5d6e7f8091a2b3c4d5e');

Responses

200 · The embedded specification. ETag is the quoted WASM hash.

Headers: Cache-Control, ETag

Fields of a 200 response
Field	Type	Description
data	object
network	string
spec	SpecJson	Versioned, deterministic JSON form of a Soroban contract spec (B-11). entriesXdr is the source of truth; the flattened views are carried alongside. H's OpenAPI document $refs this file; signet-simulator validates spec.extract output against it.
attestationHash?	string	Hash of the registry attestation record.
attestationPointer?	string	Pointer or URI of the attestation in the registry.
build?	contractBuild
entries?	object	Every contractmetav0 key/value pair. Absent in documents written before it was added.
rustVersion?	string
sdkVersion?	string
entriesXdr	string[]	Every spec entry's canonical XDR bytes as base64, in decode order.
env?	contractEnvMeta
preRelease	integer
protocolVersion	integer
errors	specErrorCase[]
doc?	string
enumName?	string
name	string
value	integer
events	specEvent[]
dataFormat	"single_value" \| "vec" \| "map"
doc	string
name	string
params	object[]
prefixTopics	string[]
functionSchemas?	object	Optional JSON Schema per function arguments (B-15).
functions	specFunction[]
doc?	string
inputs	specField[]
isConstructor?	boolean
name	string
outputs	typeRef[]
provenance?	"embedded" \| "orbital_registry"	Where this specification was obtained from.
schemaVersion	1	Schema version. Additive fields keep v1; renames and removals need v2.
sdkVersion	string	Version of @stellar/stellar-sdk that decoded this spec.
types	specType[]
warnings	string[]	Non-fatal extraction notes (e.g. future XDR arms surfaced as unknown).
wasmHash	string	Hex-encoded SHA-256 hash of the contract executable WASM.
specSource	"embedded"
wasmHash	string

304 · If-None-Match matched. Empty body; ETag and Cache-Control retained.

Headers: Cache-Control, ETag

400 · A standard v1 error. Missing contracts and embedded specs have distinct details.reason.

404 · A standard v1 error. Missing contracts and embedded specs have distinct details.reason.

429 · A standard v1 error. Missing contracts and embedded specs have distinct details.reason.

500 · A standard v1 error. Missing contracts and embedded specs have distinct details.reason.

503 · A standard v1 error. Missing contracts and embedded specs have distinct details.reason.

Example response

Generated from the schema; real values differ.

example response

{
  "data": {
    "network": "string",
    "spec": {
      "attestationHash": "string",
      "attestationPointer": "string",
      "build": {
        "entries": {},
        "rustVersion": "string",
        "sdkVersion": "string"
      },
      "entriesXdr": [
        "string"
      ],
      "env": {
        "preRelease": 3,
        "protocolVersion": 3
      },
      "errors": [
        {
          "doc": null,
          "enumName": null,
          "name": null,
          "value": null
        }
      ],
      "events": [
        {
          "dataFormat": "single_value",
          "doc": null,
          "name": null,
          "params": [],
          "prefixTopics": []
        }
      ],
      "functionSchemas": {},
      "functions": [
        {
          "doc": null,
          "inputs": [],
          "isConstructor": null,
          "name": null,
          "outputs": []
        }
      ],
      "provenance": "embedded",
      "schemaVersion": 1,
      "sdkVersion": "string",
      "types": [
        null
      ],
      "warnings": [
        "string"
      ],
      "wasmHash": "b2a1f39f0e8f1c5bd3a2e6c1d0f4b7a8c9e2d1f0a3b4c5d6e7f8091a2b3c4d5e"
    },
    "specSource": "embedded",
    "wasmHash": "b2a1f39f0e8f1c5bd3a2e6c1d0f4b7a8c9e2d1f0a3b4c5d6e7f8091a2b3c4d5e"
  }
}