Puro Bridge Integration Guide
This guide is adopted from Toucan Protocol’s reference documentation. Toucan Protocol is a third party partner that Carbonmark utilizes for interfacing with the Puro.Earth 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.
About Toucan
Toucan builds technology to accelerate climate finance. Their product suite consists of bridging, liquidity, and carbon data solutions.
About Puro.Earth
Puro.earth certifies suppliers based on the Puro Standard. Removal is independently verified and CO2 Removal Certificates (CORCs) are issued through the Puro Registry. CORCs require at least 100 years of permanence.
Toucan Puro Bridge V1
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 (learn more) 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.
Import Credits to Carbonmark
Below you will find a comprehensive, step-by-step guide designed to facilitate streamlined access to CORCs on Puro.Earth’s registry.
Step 1: Prepare Your Trader Account
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.
Go to the Toucan Puro Bridge Trader Onboarding Form.
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.
Important note: Your request to create a trader account can only be initiated by Puro, and therefore requires First Time Users (Puro account holders who have not yet on- ramped any assets to Toucan’s Sales Channel) to be completed.
Step 2: On-Ramp Assets
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.
First Time Users
For Puro account holders who have not yet on-ramped any assets to Toucan’s Sales Channel.
To: tech-support@puro.earth
CC: nora@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
Returning Users
For Puro account holders who have already on-ramped assets to Toucan’s Sales Channel.
To: tech-support@puro.earth
CC: nora@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
Important note for both users: You must turn on automatic transaction approval to use the bridge.
Step 3: Transfer Onto Carbonmark's Platform
Submit Tokenization Request: For V1, Toucan will initiate the tokenization of CORCs once you submit the request form. Later upgrades will allow partners with a Trader account to independently initiate tokenization via Toucan from Carbonmark’s UI. This video demonstrates how to fill out the tokenization request form.
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).
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 yourProfile page on Carbonmark's platform.
Export Credits from Carbonmark to your Puro Account
Step 1: Submit Detokenization Request
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.
Support
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.earthfor general inquiries and technical assistance.
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