lists.opentechinstitute.org
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:1c:9c:a2:cf:43:85:b8:aa:8c:49:10:c2:f7:cb:8e:c5:b6 was issued on by Let's Encrypt.
This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=lists.opentechinstitute.org
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:1c:9c:a2:cf:43:85:b8:aa:8c:49:10:c2:f7:cb:8e:c5:b6Serial Number (int): 358185254924069252680117550402279176062390
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 64:b3:af:62:40:ac:59:e9:96:50:5a:43:da:da:6a:77:99:43:b6:b9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 31:2a:b2:15:58:75:33:74:1e:79:2b:d7:ee:78:b6:ea:70:f4:c7:32
Fingerprint (sha256): 7d:b3:77:8b:12:51:73:e9:d9:55:bb:00:6a:40:27:20:2b:06:92:79:30:8a:82:f5:d2:d9:cb:fd:95:16:4c:4f
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate lists.opentechinstitute.org
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for lists.opentechinstitute.org
Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
lists.opentechinstitute.org
Other certificates including the domain name opentechinstitute.org
(limited to 100 certificates)
data2.opentechinstitute.org
*.chambana.net
files.opentechinstitute.org
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piwik.opentechinstitute.org
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www.opentechinstitute.org
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surveys.opentechinstitute.org
data.opentechinstitute.org
www.opentechinstitute.org
piwik.opentechinstitute.org
data2.opentechinstitute.org
opentechinstitute.org
lists.opentechinstitute.org
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opentechinstitute.org
staff.opentechinstitute.org
piwik.opentechinstitute.org
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files.opentechinstitute.org
prototypes.opentechinstitute.org
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mail.opentechinstitute.org
data2.opentechinstitute.org
www.opentechinstitute.org
opentechinstitute.org
www.opentechinstitute.org
data2.opentechinstitute.org
nat.opentechinstitute.org
files.opentechinstitute.org
lists.opentechinstitute.org
berrigan.opentechinstitute.org
www.opentechinstitute.org
mail.opentechinstitute.org
ipysvenezuela.opentechinstitute.org
piwik.opentechinstitute.org
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data.opentechinstitute.org
data2.opentechinstitute.org
ipysvenezuela.opentechinstitute.org
lists.opentechinstitute.org
*.chambana.net
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files.opentechinstitute.org
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data.opentechinstitute.org
piwik.opentechinstitute.org
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piwik.opentechinstitute.org
lists.opentechinstitute.org
data2.opentechinstitute.org
data.opentechinstitute.org
piwik.opentechinstitute.org
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files.opentechinstitute.org
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data.opentechinstitute.org
lists.opentechinstitute.org
data2.opentechinstitute.org
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opentechinstitute.org
staff.opentechinstitute.org
piwik.opentechinstitute.org
mail.opentechinstitute.org
files.opentechinstitute.org
prototypes.opentechinstitute.org
lists.opentechinstitute.org
imap.berrigan.opentechinstitute.org
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ipysvenezuela.opentechinstitute.org
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ipysvenezuela.opentechinstitute.org
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*.chambana.net
Certificate
The complete raw certificate details for lists.opentechinstitute.org in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFbzCCBFegAwIBAgISBBycos9DhbiqjEkQwvfLjsW2MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODEyMjQxNTU0NDVaFw0x OTAzMjQxNTU0NDVaMCYxJDAiBgNVBAMTG2xpc3RzLm9wZW50ZWNoaW5zdGl0dXRl Lm9yZzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALfOj+u1VgSwWJDX iGXhFxr8KB4y7T2pUKH9TgVkD36ckCeULBMWvihB7eusGSJ+s6+kw3tcFX4vatql fae4F48aTc0TCHEOhvXoUQfAV2KhToMhw1pCQl/sXZ1B/93DCWhflN5qP6qxdoN8 ajN7ZQZCtxVzSrU2qsIWzei9/YBQSCirbw07R12ZfXqh500jNosYXTMv12YHjm56 WFrAHtxL+/2TU/b1X2HqHSKbqMVAMyOlXtJYWzxddvIvrSuHlIgIZ4MA6KzuwVNW Ct5MIeIuDqmiQav4CdLSBHCwNkdaFUqsaa6U2y8Tpx9PO8z8+lCe0NI7JgwBmATi 82hCnTECAwEAAaOCAnEwggJtMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUZLOvYkCs WemWUFpD2tpqd5lDtrkwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzAmBgNVHREEHzAdghtsaXN0cy5vcGVudGVjaGluc3Rp dHV0ZS5vcmcwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAm BggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEE AdZ5AgQCBIH2BIHzAPEAdgBVgdTCFpA2AUrqC5tXPFPwwOQ4eHAlCBcvo6odBxPT DAAAAWfhI+Z+AAAEAwBHMEUCIAlROuhX6PFyBaa2OApmkb4uAqjWbkR5b53G3D2f ydTOAiEA+5HEAZRNwqw27MekbW0bRajCSzFc09pq4ut5jo/FWnMAdwApPFGWVMg5 ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0eAAAAWfhI+YVAAAEAwBIMEYCIQDh1N+F /zVFu0/AKtdjkbNRnrLKQHOEWDX7nAVdJC2TFgIhALVDCtejbwlIgs7mKPvGZylC dsO/NPmnIbdz1PYdxsIoMA0GCSqGSIb3DQEBCwUAA4IBAQAkPr2ze6b4A+SvG9QQ SmDyVYbGyIVpxhQWlPJWbXH8mmFbQP6EZTCeya9gFt0NXOMDOO6Ys7b0rqbRiavO w3a6MMSqtXDHSEEgWrYRhET0waMcb1OXvWibZzZ/wcJ8GD/C2k0mtybnKqurx8zc EG6X0j7TmSkSwpEFcuh1pjcgpNDZCGFO0HN0xXvwHnIgIUIimiHUxJc7cX08nL3F xhSluHOCVhI32vPll3BdxJdBE7EyUP+I8JBkEns47qeyPltD/XWK+ChAcg9Ekc99 Lo5V4mgIATj2+DKFOMyYS+WsyfgU3G/Xacw5IIzQZyqo2jUKpKUBct4VvV9AdwWk 3TYq -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt86P67VWBLBYkNeIZeEX GvwoHjLtPalQof1OBWQPfpyQJ5QsExa+KEHt66wZIn6zr6TDe1wVfi9q2qV9p7gX jxpNzRMIcQ6G9ehRB8BXYqFOgyHDWkJCX+xdnUH/3cMJaF+U3mo/qrF2g3xqM3tl BkK3FXNKtTaqwhbN6L39gFBIKKtvDTtHXZl9eqHnTSM2ixhdMy/XZgeObnpYWsAe 3Ev7/ZNT9vVfYeodIpuoxUAzI6Ve0lhbPF128i+tK4eUiAhngwDorO7BU1YK3kwh 4i4OqaJBq/gJ0tIEcLA2R1oVSqxprpTbLxOnH087zPz6UJ7Q0jsmDAGYBOLzaEKd MQIDAQAB -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 358185254924069252680117550402279176062390 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-12-24 15:54:45 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-24 15:54:45 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'lists.opentechinstitute.org' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 23203469421221841961091345359745021352841373111364874935316591846693752370254674201105947701436987798640338219030088153588073899897177961749876619352373115921396801400727311441109184051285723673022117696368837002791866649136694020903162424439091993939800174116766048038176786317962886666253547198143589703389911158632410138896413005854456205663546055052648461717307450923258000588141620209952388661881360455593559476525185715109636686487634886920792429405342055116679097245009741366381187183561979700988552931284297378062849620867116671613253924482134760576110593005442558526735093234671302492164312484025084296731953 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 64b3af6240ac59e996505a43dada6a779943b6b9 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (31 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lists.opentechinstitute.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10076005581d4c2169036014aea0b9b573c53f0c0e43878702508172fa3aa1d0713d30c00000167e123e67e0000040300473045022009513ae857e8f17205a6b6380a6691be2e02a8d66e44796f9dc6dc3d9fc9d4ce022100fb91c401944dc2ac36ecc7a46d6d1b45a8c24b315cd3da6ae2eb798e8fc55a73007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000167e123e6150000040300483046022100e1d4df85ff3545bb4fc02ad76391b3519eb2ca4073845835fb9c055d242d9316022100b5430ad7a36f094882cee628fbc667294276c3bf34f9a721b773d4f61dc6c228 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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