Cert Timestamp - 证书类型标识：时间戳（TSA）证书 —— 由时间戳服务签署时间戳令牌，证书过期后签名时间仍可证明

Go back Parent node: PKI Certificate System - 公钥基础设施（PKI）证书系统子树 —— 证书策略、类型标识、私有扩展、EKU、属性与协议 (1.3.6.1.4.1.59719.5)

Technical information

Dot notation:	`1.3.6.1.4.1.59719.5.210`
ASN.1 notation:	`{ iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) tsingyao(59719) pki-certificate-system(5) cert-timestamp(210) }`
OID-IRI notation:	`/ISO/Identified-Organization/6/1/4/1/TsingYao/PKICertificateSystem/CertTimestamp`
WEID notation:	`weid:P-1A2V-5-5U-0`
DER encoding:	`06:0B:2B:06:01:04:01:83:D2:47:05:81:52`

Description

English:
Certificate type identifier for Time Stamp Authority (TSA) time stamping certificates, used by the time stamping service to sign Time Stamp (TS) tokens so that the signing time can be proved after the certificate expires.
Status: registered but unused. No time stamping certificate has been issued with this type identifier; when used, map it to the time stamp policy (1.3.6.1.4.1.59719.5.1.210) and publish the TSA service address. The unused state shall be re-verified at each revision of this file.
Recommendation: the certificate shall carry the time stamping extended key usage and shall be restricted to the TSA service; time stamping depends on accurate time, so monitor time synchronization (1.3.6.1.4.1.59719.0.1.5).
See also: 1.3.6.1.4.1.59719.5.1.210, 1.3.6.1.4.1.59719.0.1.5, 1.3.6.1.4.1.59719.5.600.
Verification: 2026-10-22 — this arc and all its sub-ordinates are confirmed unused; re-verify the unused state at each revision of this file.

中文:
时间戳服务器（Time Stamp Authority，TSA）时间戳证书的证书类型标识，由时间戳服务用于签署时间戳（Time Stamp，TS）令牌，使签名时间在证书过期后仍可被证明。
状态：已注册但未使用。尚未以本类型标识签发任何时间戳证书；使用时应映射到时间戳策略（1.3.6.1.4.1.59719.5.1.210）并公布 TSA 服务地址。本文件每次修订时须重新核验该未使用状态。
建议：证书应携带时间戳扩展密钥用法并仅限 TSA 服务使用；时间戳依赖准确时间，应监控时间同步状态（1.3.6.1.4.1.59719.0.1.5）。
关联节点：1.3.6.1.4.1.59719.5.1.210、1.3.6.1.4.1.59719.0.1.5、1.3.6.1.4.1.59719.5.600。
核验：2026-10-22 —— 本弧及其全部下级标识均确认未使用，本文件每次修订时须重新核验该未使用状态。

Registration Authority

tsingyao
E-Mail: op@tsingyao.net
JunQing Gu
TsingYao Technology Limited

The RA does not want to publish their personal information.

Subordinate objects

ID	Base36	ASN.1 IDs (comma sep.)	IRI IDs (comma sep.)	RA	Comment	Created	Updated
No items available

Alternative Identifiers

Identifier	Description
aid:D276000186B200054278A5EC0679CF4B (No PIX allowed)	OIDplus Information Object Application Identifier (ISO/IEC 7816)
guid:4278a5ec-0000-8000-a6d3-3e8f3d45291b	OIDplus Information Object Custom UUID (RFC 9562)
guid:79bd21ba-842b-362f-a1c7-bb621d6a2021	Name based version 3 / MD5 UUID with namespace UUID_NAMEBASED_NS_OID
guid:799d6873-39d9-509b-a75e-4560a93cc787	Name based version 5 / SHA1 UUID with namespace UUID_NAMEBASED_NS_OID
mac:82-46-86-79-CF-4B	OIDplus Information Object MAC address, Unicast (AAI)
mac:83-46-86-79-CF-4B	OIDplus Information Object MAC address, Multicast (AAI)
weid:P-1A2V-5-5U-0	WEID notation
x500dn:/dc=com/dc=example/cn=oidplus/1.3.6.1.4.1.37476.2.5.2.9.4.1=1115203052/1.3.6.1.4.1.37476.2.5.2.9.4.2=108646219	OIDplus Information Object X.500 DN