Puro Bridge Integration Guide
Last updated
Last updated
This guide is adopted from Toucan Protocol’s reference documentation. Toucan Protocol is a third party partner that Carbonmark utilizes for interfacing with the registry.
Please note that ongoing updates will be made to this documentation as updates are made to Puro.Earth’s registry interface and Toucan Protocol’s credit transfer infrastructure.
builds technology to accelerate climate finance. Their product suite consists of bridging, liquidity, and carbon data solutions.
Puro.earth certifies suppliers based on the . Removal is independently verified and CO2 Removal Certificates (CORCs) are issued through the . CORCs require at least 100 years of permanence.
You must have a Puro account in order to use the bridge. A Puro platform membership gives access to the Puro Registry and allows you to purchase CORCs directly from suppliers. This membership costs €900 () and will expand your permitted activities.
The Toucan Puro Bridge V1 enables our partners to tokenize, detokenize, and retire CO2 Removal Certificates (CORCs) in the Puro Registry.
Please note, some of these actions are subject to current limitations. Toucan will continue to collaborate with Puro’s engineering team to improve flexibility in the future. Should you have questions about Toucan’s technology, please email: support@toucan.earth.
Below you will find a comprehensive, step-by-step guide designed to facilitate streamlined access to CORCs on Puro.Earth’s registry.
If you’ve already done this, please skip to Step 2: On-Ramp Assets.
Each bridge user must be onboarded as a recognized “Trader” within Toucan’s Sales Channel in the Puro API. The first time you use our bridge, Toucan will first ask for your information in order to prepare for the process.
Fill in the necessary details, which will include information about your organization
and a prompt to accept the bridge’s Terms and Conditions.
Go to Step2: On-Ramp Assets. In requesting that your credits are on-ramped to the Toucan Sales Channel, Puro will create your Trader account.
On-ramp your assets using the email template below. If you don’t yet have a Trader account in Toucan’s Sales Channel, Puro has stated that they will initiate the request to set up your Trader account when they receive this email.
For Puro account holders who have not yet on-ramped any assets to Toucan’s Sales Channel.
To: tech-support@puro.earth
CC: support@toucan.earth
Subject: On-ramp assets to Toucan’s Sales Channel and initiate request to set up Trader account
Body: Please on-ramp the following assets to Toucan’s Sales Channel and, in the process, initiate a request to set up our organization’s Trader account within the Toucan Sales Channel that Toucan can then approve:
Credit owner details
Name of the organization (if you currently own the credits, this will be your organization)
Address
Business ID
Sales channel details
Name of the organization: Toucan Protocol Association
Business ID: CHE-381.295.616
Other details
Account number credits will be transferred from
Credit ID number (for each batch)
Amount of credits (for each batch)
Set automatic transaction approval on
For Puro account holders who have already on-ramped assets to Toucan’s Sales Channel.
To: tech-support@puro.earth
CC: support@toucan.earth
Subject: On-ramp assets to Toucan’s Sales Channel
Body: Please on-ramp the following assets to Toucan’s Sales Channel:
Credit owner details
Name of the organization (if you currently own the credits, this will be your organization)
Address
Business ID
Sales channel details
Name of the organization: Toucan Protocol Association
Business ID: CHE-381.295.616
Other details
Account number credits will be transferred from
Credit ID number (for each batch)
Amount of credits (for each batch)
Set automatic transaction approval on
Toucan Initiates Tokenization: Upon receiving your tokenization request, Toucan will initiate the tokenization process and automatically convert your CORCs into tokenized assets.
TCO2 Tokens Deposited: The off-chain CORCs will be batch-minted into an ERC721 NFT, which will then be fractionalized into ERC20 TCO2s and deposited into the on-chain wallet that you specified in the request form (note, this essentially refers to the representation of Puro.Earth credits on our platform).
This works in a similar manner to retirement; however, if you want to detokenize Puro Credits on Carbonmark which you didn’t previously transfer onto our platform yourself, please consult your Carbonmark point of contact before proceeding.
Should you encounter any issues or have questions, we are here to assist. The most direct channels for support are:
Reach out to your designated Carbonmark account manager directly via email.
Email Toucan Protocol at support@toucan.earth for general inquiries and technical assistance.
Go to the .
Submit Tokenization Request: For V1, Toucan will initiate the tokenization of CORCs once you submit the . Later upgrades will allow partners with a Trader account to independently initiate tokenization via Toucan from Carbonmark’s UI. .
Important note: Toucan will request an account ID (i.e. a wallet address) for depositing the Puro credits into your Carbonmark account. This account ID can be located from your page on Carbonmark's platform.