2 // Simple Bitcoin Payment Protocol messages
4 // Use fields 100+ for extensions;
5 // to avoid conflicts, register extensions at:
6 // https://en.bitcoin.it/wiki/Payment_Request
10 option java_package = "org.bitcoin.protocols.payments";
11 option java_outer_classname = "Protos";
13 // Generalized form of "send payment to this/these bitcoin addresses"
15 optional uint64 amount = 1 [default = 0]; // amount is integer-number-of-satoshis
16 required bytes script = 2; // usually one of the standard Script forms
18 message PaymentDetails {
19 optional string network = 1 [default = "main"]; // "main" or "test"
20 repeated Output outputs = 2; // Where payment should be sent
21 required uint64 time = 3; // Timestamp; when payment request created
22 optional uint64 expires = 4; // Timestamp; when this request should be considered invalid
23 optional string memo = 5; // Human-readable description of request for the customer
24 optional string payment_url = 6; // URL to send Payment and get PaymentACK
25 optional bytes merchant_data = 7; // Arbitrary data to include in the Payment message
27 message PaymentRequest {
28 optional uint32 payment_details_version = 1 [default = 1];
29 optional string pki_type = 2 [default = "none"]; // none / x509+sha256 / x509+sha1
30 optional bytes pki_data = 3; // depends on pki_type
31 required bytes serialized_payment_details = 4; // PaymentDetails
32 optional bytes signature = 5; // pki-dependent signature
34 message X509Certificates {
35 repeated bytes certificate = 1; // DER-encoded X.509 certificate chain
38 optional bytes merchant_data = 1; // From PaymentDetails.merchant_data
39 repeated bytes transactions = 2; // Signed transactions that satisfy PaymentDetails.outputs
40 repeated Output refund_to = 3; // Where to send refunds, if a refund is necessary
41 optional string memo = 4; // Human-readable message for the merchant
44 required Payment payment = 1; // Payment message that triggered this ACK
45 optional string memo = 2; // human-readable message for customer