# Standards **URL:** https://community.blockcerts.org/c/standards/10.md [Latest](https://community.blockcerts.org/latest.md) · [Categories](https://community.blockcerts.org/categories.md) --- ## [About the Standards category](https://community.blockcerts.org/t/about-the-standards-category/23)
**Author:** [@kim](https://community.blockcerts.org/u/kim)\ **Replies:** 1\ **Last updated:** [October 10, 2022, 12:53pm UTC](https://community.blockcerts.org/t/about-the-standards-category/23 "2022-10-10T12:53:36Z")
Blockcerts is an open standard that continues to improve. Please use this category to discuss specifications, suggest future directions, and announce new contributions. While this topic is technical, posts should remain … --- ## [Blockcerts V3 release](https://community.blockcerts.org/t/blockcerts-v3-release/3022)
**Author:** [@lemoustachiste](https://community.blockcerts.org/u/lemoustachiste)\ **Replies:** 9\ **Last updated:** [June 5, 2024, 6:40am UTC](https://community.blockcerts.org/t/blockcerts-v3-release/3022 "2024-06-05T06:40:24Z")
Hi community, we are pleased to announce that V3 is fully released and available for consumption. The main change is the alignment with the W3C Verifiable Credentials specification. Regarding the standard itself metad… --- ## [Blockchain dedicated to academia](https://community.blockcerts.org/t/blockchain-dedicated-to-academia/2809)
**Author:** [@anilzen](https://community.blockcerts.org/u/anilzen)\ **Replies:** 0\ **Last updated:** [April 15, 2021, 6:59pm UTC](https://community.blockcerts.org/t/blockchain-dedicated-to-academia/2809 "2021-04-15T18:59:37Z")
It seems that the certification is currently pegged to a handful of existing blockchains with their preferred coins that have wild price fluctuations. Is there any discussion or suggestion to build a new blockchain (alt… --- ## [Blockcerts v3-beta](https://community.blockcerts.org/t/blockcerts-v3-beta/2802)
**Author:** [@lm-mc](https://community.blockcerts.org/u/lm-mc)\ **Replies:** 2\ **Last updated:** [April 13, 2021, 9:10pm UTC](https://community.blockcerts.org/t/blockcerts-v3-beta/2802 "2021-04-13T21:10:43Z")
Hi community, Following the release of the v3-alpha version last year, we’ve been working on the v3-beta update. The main purpose of this update is to add the display and metadata options as part of the official Blockc… --- ## [Verifiable credentials](https://community.blockcerts.org/t/verifiable-credentials/2210)
**Author:** [@Viky](https://community.blockcerts.org/u/Viky)\ **Replies:** 3\ **Last updated:** [December 5, 2019, 4:32pm UTC](https://community.blockcerts.org/t/verifiable-credentials/2210 "2019-12-05T16:32:50Z")
Hello! W3C verifiable credentials are available : https://www.w3.org/TR/vc-data-model/ Is blockcert compliant? If yes, is the blockcert verifier able to verify credentials that has been issued through this standard? … --- ## [MerkleProof2017 Ethereum Testnet not properly identified](https://community.blockcerts.org/t/merkleproof2017-ethereum-testnet-not-properly-identified/2097)
**Author:** [@davidlj\_btca](https://community.blockcerts.org/u/davidlj_btca)\ **Replies:** 2\ **Last updated:** [October 7, 2019, 11:37am UTC](https://community.blockcerts.org/t/merkleproof2017-ethereum-testnet-not-properly-identified/2097 "2019-10-07T11:37:37Z")
In the Merkle Proof 2017 schema definition, the chain string can be one of the values defined here: The question is, what chain does ethereumTestnet refers to? There are multiple Ethereum testnets like Ropsten (alrea… --- ## [DIDs as a way to properly identify issuers](https://community.blockcerts.org/t/dids-as-a-way-to-properly-identify-issuers/2085)
**Author:** [@davidlj\_btca](https://community.blockcerts.org/u/davidlj_btca)\ **Replies:** 6\ **Last updated:** [September 20, 2019, 8:16am UTC](https://community.blockcerts.org/t/dids-as-a-way-to-properly-identify-issuers/2085 "2019-09-20T08:16:00Z")
DIDs as a way to properly identify issuers TL;DR: Add a did field that contains a DID for the assertion issuer in the VerificationObject of the assertion. Prolog I know Blockcerts does not take care about issuer identit… --- ## [IssuedOn meant for blockcert or for underlying award?](https://community.blockcerts.org/t/issuedon-meant-for-blockcert-or-for-underlying-award/1759)
**Author:** [@jc.chartrand](https://community.blockcerts.org/u/jc.chartrand)\ **Replies:** 0\ **Last updated:** [March 5, 2019, 12:20am UTC](https://community.blockcerts.org/t/issuedon-meant-for-blockcert-or-for-underlying-award/1759 "2019-03-05T00:20:02Z")
The issuedOn property in a blockcert seems to come from OpenBadges, where it is described as (from https://www.imsglobal.org/sites/default/files/Badges/OBv2p0Final/index.html#Assertion): issuedOn \[DateTime\] Timestamp of… --- ## [Blockcerts, Open Badges, and Verifiable Claims Integration](https://community.blockcerts.org/t/blockcerts-open-badges-and-verifiable-claims-integration/576)
**Author:** [@kim](https://community.blockcerts.org/u/kim)\ **Replies:** 3\ **Last updated:** [February 14, 2019, 11:45pm UTC](https://community.blockcerts.org/t/blockcerts-open-badges-and-verifiable-claims-integration/576 "2019-02-14T23:45:55Z")
Hi all, In this forum and our Medium posts, we’ve mentioned our desire to integrate Blockcerts, Open Badges, and Verifiable Claims. I’m thrilled to inform the Blockcerts community that IMS (the standards body behind Ope… --- ## [Learning Machine Contributes Android App to Blockcerts](https://community.blockcerts.org/t/learning-machine-contributes-android-app-to-blockcerts/227)
**Author:** [@downie](https://community.blockcerts.org/u/downie)\ **Replies:** 17\ **Last updated:** [July 20, 2018, 3:35pm UTC](https://community.blockcerts.org/t/learning-machine-contributes-android-app-to-blockcerts/227 "2018-07-20T15:35:04Z")
Today, we’re super excited to announce that the power of Blockcerts has finally arrived on the Android platform. If that's what you've been waiting to hear, go download the app now. Otherwise, let's take a look at what's… --- ## [Verifiable displays](https://community.blockcerts.org/t/verifiable-displays/471)
**Author:** [@kim](https://community.blockcerts.org/u/kim)\ **Replies:** 1\ **Last updated:** [November 8, 2017, 6:41pm UTC](https://community.blockcerts.org/t/verifiable-displays/471 "2017-11-08T18:41:45Z")
Revised 2017/11/02 11:32AM PST to update title and clarify role of Open Badge baking Blockcerts viewers, and how to customize Blockcerts’ open source certificate viewers display certain fields by default – certificate t… --- ## [Allowing light weight verifiers to download transactions directly off the blockchain](https://community.blockcerts.org/t/allowing-light-weight-verifiers-to-download-transactions-directly-off-the-blockchain/329)
**Author:** [@noah](https://community.blockcerts.org/u/noah)\ **Replies:** 2\ **Last updated:** [September 19, 2017, 5:08pm UTC](https://community.blockcerts.org/t/allowing-light-weight-verifiers-to-download-transactions-directly-off-the-blockchain/329 "2017-09-19T17:08:39Z")
Hi BlockCerts community, I’ve been playing around with an spv client (https://bitcoinj.github.io) to see if it’s possible to directly download transactions off the blockchain without running a full node or relying on a … --- ## [UX/UI Standards](https://community.blockcerts.org/t/ux-ui-standards/221)
**Author:** [@ablanchard](https://community.blockcerts.org/u/ablanchard)\ **Replies:** 0\ **Last updated:** [July 10, 2017, 9:00pm UTC](https://community.blockcerts.org/t/ux-ui-standards/221 "2017-07-10T21:00:13Z")
Setting user experience and visual standards will be critical for public adoption and use. If anyone would like to work on helping me define this or has a project that needs UX/UI work, it may be a good opportunity to s… --- ## [Possible use of a decentralized DNS system](https://community.blockcerts.org/t/possible-use-of-a-decentralized-dns-system/131)
**Author:** [@noah](https://community.blockcerts.org/u/noah)\ **Replies:** 2\ **Last updated:** [May 30, 2017, 1:26pm UTC](https://community.blockcerts.org/t/possible-use-of-a-decentralized-dns-system/131 "2017-05-30T13:26:15Z")
Hello Blockcerts community! While doing some research for the creation of a cloud based certificate wallet I stumbled upon Blockstack (https://blockstack.org). Blockstack is a open source Decentralized DNS implementati… --- ## [V2 Schema Highlights](https://community.blockcerts.org/t/v2-schema-highlights/32)
**Author:** [@kim](https://community.blockcerts.org/u/kim)\ **Replies:** 0\ **Last updated:** [March 22, 2017, 8:35pm UTC](https://community.blockcerts.org/t/v2-schema-highlights/32 "2017-03-22T20:35:50Z")
Formalize schema elements and allow them to vary The biggest weakness of the previous schema/standard versions was that too many of the critical aspects were implied (such as verification steps), which makes it harder t…