# References and Reading Material

<table data-header-hidden><thead><tr><th width="60.8984375"></th><th>Specification</th><th>Description</th></tr></thead><tbody><tr><td>[1]</td><td><a href="https://imsglobal.org/spec/vcrl/v1p0/">1EdTech Revocation List Status Method</a></td><td>A simple list-based mechanism for publishing and checking the revocation status of a verifiable credential Maintainer: 1EdTech (<a href="mailto:contact@imsglobal.org">Email</a>) (<a href="https://www.1edtech.org/">Website</a>)</td></tr><tr><td>[2]</td><td><a href="https://spherity.github.io/vc-ethr-revocation-registry/">Ethr Revocation 2022</a></td><td>An Ethereum, EIP-5539 compliant and registry-based revocation mechanism for Verifiable Credentials Maintainer: Spherity GmbH (<a href="mailto:lauritz.leifermann@spherity.com">email</a>) (<a href="https://www.spherity.com/">website</a>)</td></tr><tr><td>[3]</td><td><a href="https://whatsonchain.com/stats">Whats on Chain</a></td><td>WhatsOnChain API documentation</td></tr><tr><td>[4]</td><td><a href="https://www.bsvblockchain.org/compare">https://www.bsvblockchain.org/compare</a></td><td></td></tr><tr><td>[5]</td><td><a href="https://github.com/teranode-group/nChain-Identity-bsvdid-resolver">GitHub</a></td><td>Source Code</td></tr></tbody></table>