<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--
	U K   F E D E R A T I O N   M E T A D A T A

	Aggregate built 2026-04-08T15:00:27Z

	Aggregate valid for 21 days, until 2026-04-29T15:00:27Z
-->
<EntitiesDescriptor xmlns="urn:oasis:names:tc:SAML:2.0:metadata" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:elab="http://eduserv.org.uk/labels" xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol" xmlns:shibmd="urn:mace:shibboleth:metadata:1.0" xmlns:shibmeta="urn:mace:shibboleth:metadata:1.0" xmlns:ukfedlabel="http://ukfederation.org.uk/2006/11/label" xmlns:wayf="http://sdss.ac.uk/2006/06/WAYF" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ID="uk20100825T175806Z" Name="http://ukfederation.org.uk" validUntil="2010-09-08T17:58:06Z" xsi:schemaLocation="urn:oasis:names:tc:SAML:2.0:metadata sstc-saml-schema-metadata-2.0.xsd   urn:mace:shibboleth:metadata:1.0 shibboleth-metadata-1.0.xsd   http://www.w3.org/2001/04/xmlenc# xenc-schema.xsd   http://www.w3.org/2000/09/xmldsig# xmldsig-core-schema.xsd">
  <EntityDescriptor ID="uk004460" entityID="https://protocols.io">
    <ContactPerson contactType="support">
      <EmailAddress>mailto:info@protocols.io</EmailAddress>
      <GivenName>Support</GivenName>
    </ContactPerson>
    <ContactPerson contactType="technical">
      <EmailAddress>mailto:info@protocols.io</EmailAddress>
      <GivenName>Support</GivenName>
    </ContactPerson>
    <ContactPerson contactType="other" remd:contactType="http://refeds.org/metadata/contactType/security">
      <EmailAddress>mailto:alexei@protocols.io</EmailAddress>
      <GivenName>Alexei</GivenName>
      <SurName>Stoliartchouk</SurName>
    </ContactPerson>
    <Extensions>
      <mdrpi:RegistrationInfo registrationAuthority="http://ukfederation.org.uk" registrationInstant="2025-10-13T08:15:22Z">
        <mdrpi:RegistrationPolicy xml:lang="en">http://ukfederation.org.uk/doc/mdrps-20130902</mdrpi:RegistrationPolicy>
      </mdrpi:RegistrationInfo>
    </Extensions>
    <Organization>
      <OrganizationDisplayName xml:lang="en">Springer Nature Limited</OrganizationDisplayName>
      <OrganizationName xml:lang="en">Springer Nature Limited</OrganizationName>
      <OrganizationURL xml:lang="en">https://www.protocols.io</OrganizationURL>
    </Organization>
    <SPSSODescriptor AuthnRequestsSigned="false" WantAssertionsSigned="false" protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
      <AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://www.protocols.io/api/v1/auth/sso" index="1" />
      <AttributeConsumingService index="0">
        <RequestedAttribute FriendlyName="mail" Name="urn:oid:0.9.2342.19200300.100.1.3" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri" isRequired="true" />
        <RequestedAttribute FriendlyName="uid" Name="urn:oid:0.9.2342.19200300.100.1.1" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri" isRequired="true" />
        <RequestedAttribute FriendlyName="surname" Name="urn:oid:2.5.4.4" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri" />
        <RequestedAttribute FriendlyName="givenName" Name="urn:oid:2.5.4.42" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri" />
        <ServiceDescription xml:lang="en">A secure platform for creating, sharing, and collaborating on research protocols.</ServiceDescription>
        <ServiceName xml:lang="en">protocols.io</ServiceName>
      </AttributeConsumingService>
      <Extensions>
        <init:RequestInitiator Binding="urn:oasis:names:tc:SAML:profiles:SSO:request-init" Location="https://www.protocols.io/sign-in-sso" />
        <mdui:UIInfo>
          <mdui:Description xml:lang="en">A secure platform for creating, sharing, and collaborating on research protocols.</mdui:Description>
          <mdui:DisplayName xml:lang="en">protocols.io</mdui:DisplayName>
          <mdui:InformationURL xml:lang="en">https://www.nature.com/nature/about</mdui:InformationURL>
          <mdui:Logo height="120" width="220">https://files.protocols.io/webapp/images/q2ckeg/brand-page/branding.jpg</mdui:Logo>
          <mdui:PrivacyStatementURL xml:lang="en">https://www.protocols.io/privacy</mdui:PrivacyStatementURL>
        </mdui:UIInfo>
      </Extensions>
      <KeyDescriptor>
        <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes128-cbc" />
        <ds:KeyInfo>
          <ds:X509Data>
            <ds:X509Certificate>
  						MIIEtjCCAx6gAwIBAgIUWZmx4eO8NUeMl19ujG0HiegQ3PowDQYJKoZIhvcNAQEL
  						BQAwfjELMAkGA1UEBhMCVVMxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoM
  						GEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEVMBMGA1UEAwwMcHJvdG9jb2xzLmlv
  						MSAwHgYJKoZIhvcNAQkBFhFpbmZvQHByb3RvY29scy5pbzAeFw0yNTEwMDkxMDQ3
  						MjFaFw0zNTEwMDcxMDQ3MjFaMH4xCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApTb21l
  						LVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxFTATBgNV
  						BAMMDHByb3RvY29scy5pbzEgMB4GCSqGSIb3DQEJARYRaW5mb0Bwcm90b2NvbHMu
  						aW8wggGiMA0GCSqGSIb3DQEBAQUAA4IBjwAwggGKAoIBgQC/QSBhp56gV3OlUW5u
  						a9zXjjWtL30Uv2WGLgDHCdd7PgJvDvxO9Y+GtnpNWt05DAOvE5DtqvpHbfvdp0F4
  						W2O6Ql+QID8ed2l0KC3tjpoPwiWSZ8aeSnyp1yGIRJAqlK2X/QxUaE7Vs4ugSSwW
  						K1Csn6icfyOlUAz9wjFwS5mdu+H/VhGtl1fUfLQHKzvYfK4jpDixjjWsQTOEl1Ut
  						hsldkRFLxEEKWKa0CoqHe10fO/EdzgR9trpq+VTzn7WqlrCo8pXJQptLYtHnJzEn
  						CtiuF8EkHq3CjRdTUAsYnISdSvoUqZjHYKHW96z1GdQi4ni3D/U7mhz0fcElo93o
  						WKSeSCqTZ9YqcqBFxSGIGPn25iZVos/klP1thoLdfxwLm+f40HujLjE8ojRdNDwr
  						aINP/cbitXZJ939eMzV18la/qBwKTixICPHJAX88rkipk8x79DNGUigGllkfTnme
  						WY3z6zn4v7DUYHwcOnSduuZFISvE29yLFJnp3t9+H1wtRFUCAwEAAaMsMCowCQYD
  						VR0TBAIwADAdBgNVHQ4EFgQUYQZke39G6INis6ymoQQLJbE1S2UwDQYJKoZIhvcN
  						AQELBQADggGBALbLbGW+HkrEIsnkdCunb9Qgc5SdKMdADnLa3yYUjcqtOF5sHjWO
  						Eav1HRKPsfjDYM9FfjCrV6oHqxVelLPzetKbGBJ/jTdxJoOb7vlQHi6KbQZUMt9Z
  						k+CzZpQaFLxs5PzS4aE//kQSIoU/cY5B6K7/HGHO5Sdgkc1JBWp+JifkaPZmm76b
  						l6YXnQHM+mZz2JDs9R0B6D4mWBQkYUWD5e7gIIl933dsA7c1mqoy3JtALuWoNJgu
  						joMRziPSxq+jeog8sOg8ncbDQ+SRks/2gjM44uv/Pc9ijSi4CxXspFwhzeuLNgSN
  						liCmFBF1gT5tvA0Gv66BoB1N9lUuG2dDbI+DOjfbBBrAr0nDtMsr6NGAIUckSBLo
  						O1k9kl3mdDTDz0gUXQ8nK/BZ2Ap1oRIMIrI8V7qe8lvc11UjDJzfJgNs5LF+spyT
  						hfFcsDr8fJiRUZrpv8T2SGspx2bghIFPaXvd7YMCT4rp/6OnVU65Vww5y8SJHTN6
  						dPFesM+vsIllKA==
  					</ds:X509Certificate>
          </ds:X509Data>
        </ds:KeyInfo>
      </KeyDescriptor>
    </SPSSODescriptor>
  </EntityDescriptor>
</EntitiesDescriptor>
