The Sandbox — LAND Smart Contract Migration

The Sandbox LANDs are migrating to a new sensible agreement

  • A new edition of the LAND good-agreement has been deployed its address is 0x5CC5B05a8A13E3fBDB0BB9FcCd98D38e50F90c38
  • The migration interface can be found listed here:
  • The previous smart contract contained a vulnerability that was to start with claimed on December 25th, 2021.
  • The vulnerability has been fastened and the resolve audited. It has not been exploited by any destructive consumer and has now been secured.
  • The concern did not allow for transfers nor minting of new LAND and no tokens have been compromised. Furthermore, we have operate comprehensive investigations on our other sensible contracts and none of them are at threat.
  • We deployed a migration clever deal to enable all people migrate their LAND to the new LAND deal its tackle is 0x371f4c6fd305c6772Bc6224b795b0B46b6B6f8dB
  • There is no value concerned on the user’s side. All migration gas expenditures are fully lined by The Sandbox.

The Sandbox sensible contracts have been extensively audited by two prime safety corporations, Certik and Solidified, and gained superior-stability scores. These audits can be accessed publicly on our Github repository. The LAND intelligent agreement was at first audited by Certik on December 10th, 2019, and included 3 auditors by way of a two-week system.

Having said that, a vulnerability was first discovered on December 25th, 2021.

On discovering of the vulnerability, we took rapid action to fix the situation, as the pursuing timeline demonstrates:

  • On Dec 25th, a stability researcher called Danel Hazlewood (@Alphasoups) notified us of the vulnerability.
  • On Dec 25th, we carried out inner checks and verified the reproducibility of the difficulty.
  • In between December 25th and 30th, we labored on a deal with and submitted it for audit yet again by Certik safety auditors to affirm the resolve didn’t introduce new vulnerabilities.
  • Following consulting with fellow builders, we all agreed the finest program of motion was to deploy the fix and allow end users to migrate all LAND tokens to the new wise deal devoid of any costs (gasless guidance).
  • The root lead to has been investigated and a new wise contract migration and interface has been developed.
  • On January 28th, we deployed the new fixed good contract the deal with is 0x371f4c6fd305c6772Bc6224b795b0B46b6B6f8dB
  • We also deployed extra stability actions to assure the security of all LAND while the migration is in development
  • On January 28th, we unveiled our migration interface to enable every single LAND owner migrate their LAND tokens to the new contract. All the fuel fees linked are totally included by The Sandbox. No costs are incurred by our users

Immediately after peer-examining various solutions, we all agreed that the very best system of motion was to program a migration from the previous LAND deal to the new a person.

This migration is not pressured on end users. They can do it at their individual pace when they are all set.

We are masking the fuel expenditures as a result of the deployment of a gasless function for this migration.

So, don’t fear — this process:

  • Is totally free to all consumers
  • Has no time restrict

We produced the migration interface on January 28th:

If you need assist to migrate your LAND tokens, you should make contact with us through

We strategy to retain the neighborhood updated on the all round development of the migration. We are conscious this is a quite exceptional scenario and are performing everything we can to retain the method as seamless and transparent as probable.

Thank you for your assistance and comprehending.

Resource: NFT Right now


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