> ## Documentation Index > Fetch the complete documentation index at: https://www.helius.dev/docs/llms.txt > Use this file to discover all available pages before exploring further. # getShieldedTransactionsBySignature > Retrieve indexed shielded events for a Solana transaction signature. ## Events in a Transaction The response returns `result.transactions`, ordered by `eventIndex`. Each entry contains the event index and a shielded transaction with encrypted outputs, messages, and nullifiers. One Solana transaction can contain multiple shielded events. An empty `transactions` array means the indexer has no matching shielded events. Check `context.slot` before treating a recently submitted transaction as absent. This method does not use pagination. ## Request Parameters **txSignature** `string` *required* Base58-encoded 64-byte Solana transaction signature. ## OpenAPI ````yaml openapi/privacy/getShieldedTransactionsBySignature.yaml POST /v1/spr/getShieldedTransactionsBySignature openapi: 3.0.3 info: title: Solana Privacy Rings API version: 0.51.2 description: >- Privacy indexer JSON-RPC API for encrypted state, history, proofs, and public registry records. servers: - url: https://devnet.helius-rpc.com description: Devnet Solana Privacy Rings API security: [] paths: /v1/spr/getShieldedTransactionsBySignature: post: summary: getShieldedTransactionsBySignature description: Retrieve indexed shielded events for a Solana transaction signature. operationId: getShieldedTransactionsBySignature requestBody: content: application/json: schema: type: object required: - jsonrpc - id - method - params properties: id: type: string description: An ID to identify the request. default: '1' jsonrpc: type: string description: The JSON-RPC protocol version. enum: - '2.0' default: '2.0' method: type: string description: The method to invoke. Must match the final URL path segment. enum: - getShieldedTransactionsBySignature default: getShieldedTransactionsBySignature params: type: object required: - txSignature properties: txSignature: allOf: - $ref: '#/components/schemas/SerializableSignature' description: Base58-encoded 64-byte Solana transaction signature. additionalProperties: false example: txSignature: >- 555555555555555555555555555555555555555555555555555555555555555555555555555555555555555 example: jsonrpc: '2.0' id: '1' method: getShieldedTransactionsBySignature params: txSignature: >- 555555555555555555555555555555555555555555555555555555555555555555555555555555555555555 required: true responses: '200': description: JSON-RPC response. Inspect error before reading result. content: application/json: schema: type: object required: - jsonrpc - id properties: error: type: object required: - code - message properties: code: type: integer message: type: string data: type: object additionalProperties: true id: type: string description: The request ID. jsonrpc: type: string description: The version of the JSON-RPC protocol. enum: - '2.0' result: type: object required: - context - transactions properties: context: $ref: '#/components/schemas/Context' outputTreeId: type: integer format: uint16 description: >- The newest unpaused state tree ID. Omitted when unavailable. minimum: 0 transactions: type: array items: $ref: '#/components/schemas/IndexedShieldedTransaction' example: jsonrpc: '2.0' id: '1' result: context: slot: 4242 blockTime: 1730000000 transactions: [] '400': description: >- Rejected before execution. A method/path mismatch, duplicate method fields, or a batch request returns -32601. An unreadable or oversized body returns -32600. content: application/json: schema: type: object required: - jsonrpc - id - error properties: jsonrpc: type: string enum: - '2.0' id: type: string nullable: true description: >- The request id, or null when the body is not a single JSON-RPC call. error: type: object required: - code - message properties: code: type: integer message: type: string data: type: object additionalProperties: true '429': description: Rate limit exceeded. content: application/json: schema: type: object required: - jsonrpc - id - error properties: jsonrpc: type: string enum: - '2.0' id: type: string nullable: true description: >- The request id, or null when the body is not a single JSON-RPC call. error: type: object required: - code - message properties: code: type: integer message: type: string data: type: object additionalProperties: true '500': description: Internal server error. content: application/json: schema: type: object required: - jsonrpc - id - error properties: jsonrpc: type: string enum: - '2.0' id: type: string nullable: true description: >- The request id, or null when the body is not a single JSON-RPC call. error: type: object required: - code - message properties: code: type: integer message: type: string data: type: object additionalProperties: true security: - ApiKeyQuery: [] components: schemas: SerializableSignature: type: string description: A base58-encoded 64-byte Solana transaction signature. Context: type: object required: - blockTime - slot properties: blockTime: type: integer format: int64 slot: type: integer format: uint64 description: >- Highest slot the indexer has persisted, for slot-based freshness checks. minimum: 0 IndexedShieldedTransaction: type: object required: - eventIndex - transaction properties: eventIndex: type: integer format: uint16 minimum: 0 transaction: $ref: '#/components/schemas/ShieldedTransaction' ShieldedTransaction: type: object required: - slot - txSignature - txViewingPk - salt - outputSlots - messages - nullifiers - proofless properties: eventIndex: type: integer format: uint16 minimum: 0 messages: type: array items: $ref: '#/components/schemas/RingsMessage' description: >- Published data slots bound to no output commitment, republished verbatim. nullifiers: type: array items: $ref: '#/components/schemas/Hash' outputSlots: type: array items: $ref: '#/components/schemas/RingsOutputSlot' proofless: type: boolean description: True when at least one output in this transaction is proofless. ringConfig: type: string description: >- The ring's config account (its `ring_auth` PDA). Omitted when no ring authorized this transaction. ringProgramId: type: string description: >- The ring's program, resolved through the indexed registrations. Omitted when `ringConfig` is omitted or the ring's registration has not been indexed. Use `ringConfig` to tell "no ring" apart from "ring with an unindexed program". salt: type: string description: Transaction-level AES salt shared by every output ciphertext. nullable: true slot: type: integer format: uint64 minimum: 0 txSignature: $ref: '#/components/schemas/SerializableSignature' txViewingPk: type: string description: A base64-encoded byte string. nullable: true RingsMessage: type: object required: - viewTag - payload properties: payload: $ref: '#/components/schemas/Base64String' viewTag: $ref: '#/components/schemas/Hash' Hash: type: string description: A base58-encoded 32-byte hash. RingsOutputSlot: type: object required: - viewTag - outputContext - payload properties: outputContext: $ref: '#/components/schemas/RingsOutputContext' payload: $ref: '#/components/schemas/Base64String' viewTag: $ref: '#/components/schemas/Hash' Base64String: type: string description: A base64-encoded byte string. RingsOutputContext: type: object required: - hash - tree - treeId - leafIndex properties: hash: $ref: '#/components/schemas/Hash' leafIndex: type: integer format: uint64 minimum: 0 tree: allOf: - $ref: '#/components/schemas/SerializablePubkey' description: >- State tree account. Prefer treeId; the tree account is derived from it. deprecated: true treeId: type: integer format: uint16 description: The raw tree id the output's commitment is hashed under. minimum: 0 SerializablePubkey: type: string description: A base58-encoded Solana public key. securitySchemes: ApiKeyQuery: type: apiKey in: query name: api-key description: Your Helius API key. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.