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gsouquet/from-param-msc3567
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neilalexander/msc/send
rav/proposal/drop-event-from-auth-events
release/v1.1
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erikj/counters
kitsune/counting-unread-messages
fix-croatian-sas-emoji
hs/proposal-appservice-login
travis/msc/modal-widgets
j94/members-knock
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hs/soft-kicks
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matthew/msc1772
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message-timezone-markup
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dbkr/msc2845
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dbkr/msc2772
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msc2313
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identity_service/release-r0.3.0
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msc2271
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dbkr/is_in_account_data
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travis/msc/federation-capabilities
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anoa/clarify_email_sending
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hs/disable-presence
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anoa/typo2
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rav/fix_jenkins_comments
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erikj/make_membership_room_ver
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anoa/sticky_headers_fix
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erikj/rooms_v2
erikj/event_checks
revert-1730-rav/proposal/cs_api_in_login
dbkr/add_sandbox_to_csp
rav/msc1730/work
rav/simplify_msc1730
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erikj/soft_logout
travis/msc/wellknown-improvements
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matthew/encrypted-recovery-keys
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client_server/release-r0.4.0
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erikj/auth_events
erikj/auth_rejections
erikj/spec_3pid_ruls
erikj/fixup_auth_rules
application_service/release-r0.1.0
push_gateway/release-r0.1.0
human-id-rules
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${ noResults }
15 lines
555 B
Markdown
15 lines
555 B
Markdown
---
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toc_hide: true
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---
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{{% added-in this=true %}} The event ID is the [reference
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hash](/server-server-api#calculating-the-reference-hash-for-an-event) of
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the event encoded using a variation of [Unpadded
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Base64](/appendices#unpadded-base64) which replaces the 62nd and
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63rd characters with `-` and `_` instead of using `+` and `/`. This
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matches [RFC4648's definition of URL-safe
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base64](https://tools.ietf.org/html/rfc4648#section-5).
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Event IDs are still prefixed with `$` and might result in looking like
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`$Rqnc-F-dvnEYJTyHq_iKxU2bZ1CI92-kuZq3a5lr5Zg`.
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