Documentation

The APIs below are published by Splice to aid decoupling different Canton Network applications. Consider using them to decouple your code from the upgrading cycles of your dependencies, when building Daml code that interacts with workflows of other apps in the Canton Network. These APIs are not man

There are two sets of HTTP APIs exposed by Splice applications, as can be seen in the diagram below: • The app_dev_scan_api are exposed by the Scan App of SV nodes and provides access to the view of the ledger and its infrastructure as seen by all SV Nodes. Use https://sync.global/sv-network/ to di

At a high level, participant nodes provide two separate endpoints through a Ledger API: • An endpoint to submit commands to the ledger that allow an application to submit transactions and change state, by creating, exercising or archiving contracts. • An endpoint that provides a stream of transact

Splice network applications and validators need to be able to connect to multiple supervalidators’ Scan apps and Canton sequencers. If you have the base URL for a single SV Scan app, you can query for all other connected Scans and the SV sequencers. This lets you dynamically update your app configur

dpm is the command-line interface for Canton development. It manages SDK installation, project scaffolding, compilation, testing, code generation, and local development environments. Most Canton development workflows start with a dpm command. Pre-requisites Dpm runs on Windows, macOS and Lin

A governance lock is a Canton Coin (CC) holding that is locked to fulfill the locking requirements for Super Validators (SVs) and Featured Apps (FAs). This page explains why governance locks exist, and how lock owners create and manage them with any wallet that supports CIP-0056 two-step transfers.

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/dso' import json import requests url = "https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/dso" response = requests.request("GET",

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/history/bulk/progress' import json import requests url = "https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/history/bulk/progress"

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/history/bulk/acs' import json import requests url = "https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/history/bulk/acs" response

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/events' \ --header 'Content-Type: application/json' \ --data '{ "after": { "after_migration_id": 123, "after_record_time": "<string>" },

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/open-and-issuing-mining-rounds' \ --header 'Content-Type: application/json' \ --data '{ "cached_open_mining_round_contract_ids": [ "<string>"

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/validators/validator-faucets' import json import requests url = "https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/validators/vali

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v1/dso' import json import requests url = "https://scan.sv-1.global.canton.network.sync.global/api/scan/v1/dso" response = requests.request("GET",

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/sv-info' import json import requests url = "https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/sv-info" response = requests.request

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/holdings/summary' \ --header 'Content-Type: application/json' \ --data '{ "migration_id": 123, "record_time": "2026-01-01T00:00:00Z", "record_t

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/history/bulk/updates' \ --header 'Content-Type: application/json' \ --data '{ "start_record_time": "2026-01-01T00:00:00Z", "end_record_time": "20

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/history/bulk/checksums' \ --header 'Content-Type: application/json' \ --data '{ "object_keys": [ "<string>" ] }' import json import

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/voterequest' \ --header 'Content-Type: application/json' \ --data '{ "vote_request_contract_ids": [ "<string>" ] }' import json impo

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v2/updates' \ --header 'Content-Type: application/json' \ --data '{ "after": { "after_migration_id": 123, "after_record_time": "<string>" },

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v2/holdings/state' \ --header 'Content-Type: application/json' \ --data '{ "migration_id": 123, "record_time": "2026-01-01T00:00:00Z", "record_tim

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v1/updates' \ --header 'Content-Type: application/json' \ --data '{ "after": { "after_migration_id": 123, "after_record_time": "<string>" },

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v2/state/acs' \ --header 'Content-Type: application/json' \ --data '{ "migration_id": 123, "record_time": "2026-01-01T00:00:00Z", "record_time_mat

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://scan.sv-1.global.canton.network.sync.global/api/scan/v1/holdings/summary' \ --header 'Content-Type: application/json' \ --data '{ "migration_id": 123, "record_time": "2026-01-01T00:00:00Z", "record_t

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'https://example.com/api/validator/v1/scan-proxy/dso' import json import requests url = "https://example.com/api/validator/v1/scan-proxy/dso" response = requests.request("GET", url) print(response.text)

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://example.com/api/validator/v1/scan-proxy/holdings/summary' \ --header 'Content-Type: application/json' \ --data '{ "migration_id": 123, "record_time": "2026-01-01T00:00:00Z", "record_time_match": "exa

cURL Python JavaScript PHP Go Java Ruby curl --request POST \ --url 'https://example.com/api/validator/v0/scan-proxy/holdings/summary' \ --header 'Content-Type: application/json' \ --data '{ "migration_id": 123, "record_time": "2026-01-01T00:00:00Z", "record_time_match": "exa

cURL Python JavaScript PHP Go Java Ruby curl --request GET \ --url 'https://example.com/api/validator/v0/scan-proxy/dso' import json import requests url = "https://example.com/api/validator/v0/scan-proxy/dso" response = requests.request("GET", url) print(response.text)

darsyncer darsyncer synchronizes one or more DAR files to a participant ledger. It can upload missing DARs, verify that required packages are present, or wait until synchronization has completed. Docker Image europe-docker.pkg.dev/da-images/public/docker/darsyncer:latest Features •

split by participant and synchronizer, put shared commands in extend/participant section, and add a section for the synchronizer Console Commands Top-level Commands The following commands are available for convenience: exit Leave the console. help Help with console commands. Type

Externally Signed Topology Transactions Canton’s Topology formalizes a shared state on a synchronizer and provides a secure, distributed mechanism for modifying this state. This tutorial demonstrates how to build, sign, and submit topology transactions. It is particularly useful for cases where t