Semantic attributes for ActivityPub (by Fedify)

semantic-attributes.md

Semantic attributes for ActivityPub (by Fedify)

Caution

This table is outdated. See also the Fedify's docs.

The OpenTelemetry Semantic Conventions currently do not have a specification for ActivityPub as of November 2024. However, Fedify provides a set of semantic attributes for ActivityPub. The following table shows the semantic attributes for ActivityPub:

Attribute	Type	Description	Example
activitypub.activity.id	string	The URI of the activity object.	"https://example.com/activity/1"
activitypub.activity.type	string[]	The qualified URI(s) of the activity type(s).	["https://www.w3.org/ns/activitystreams#Create"]
activitypub.activity.to	string[]	The URI(s) of the recipient collections/actors of the activity.	["https://example.com/1/followers/2"]
activitypub.activity.cc	string[]	The URI(s) of the carbon-copied recipient collections/actors of the activity.	["https://www.w3.org/ns/activitystreams#Public"]
activitypub.activity.bto	string[]	The URI(s) of the blind recipient collections/actors of the activity.	["https://example.com/1/followers/2"]
activitypub.activity.bcc	string[]	The URI(s) of the blind carbon-copied recipient collections/actors of the activity.	["https://www.w3.org/ns/activitystreams#Public"]
activitypub.activity.retries	int	The ordinal number of activity resending attempt (if and only if it's retried).	3
activitypub.actor.id	string	The URI of the actor object.	"https://example.com/actor/1"
activitypub.actor.type	string[]	The qualified URI(s) of the actor type(s).	["https://www.w3.org/ns/activitystreams#Person"]
activitypub.collection.id	string	The URI of the collection object.	"https://example.com/collection/1"
activitypub.collection.type	string[]	The qualified URI(s) of the collection type(s).	["https://www.w3.org/ns/activitystreams#OrderedCollection"]
activitypub.collection.total_items	int	The total number of items in the collection.	42
activitypub.object.id	string	The URI of the object or the object enclosed by the activity.	"https://example.com/object/1"
activitypub.object.type	string[]	The qualified URI(s) of the object type(s).	["https://www.w3.org/ns/activitystreams#Note"]
activitypub.object.in_reply_to	string[]	The URI(s) of the original object to which the object reply.	["https://example.com/object/1"]
activitypub.inboxes	int	The number of inboxes the activity is sent to.	12
activitypub.shared_inbox	boolean	Whether the activity is sent to the shared inbox.	true
fedify.actor.identifier	string	The identifier of the actor.	"1"
fedify.inbox.recipient	string	The identifier of the inbox recipient.	"1"
fedify.object.type	string	The URI of the object type.	"https://www.w3.org/ns/activitystreams#Note"
fedify.object.values.{parameter}	string[]	The argument values of the object dispatcher.	["1", "2"]
fedify.collection.cursor	string	The cursor of the collection.	"eyJpZCI6IjEiLCJ0eXBlIjoiT3JkZXJlZENvbGxlY3Rpb24ifQ=="
fedify.collection.items	number	The number of items in the collection page. It can be less than the total items.	10
http_signatures.signature	string	The signature of the HTTP request in hexadecimal.	"73a74c990beabe6e59cc68f9c6db7811b59cbb22fd12dcffb3565b651540efe9"
http_signatures.algorithm	string	The algorithm of the HTTP request signature.	"rsa-sha256"
http_signatures.key_id	string	The public key ID of the HTTP request signature.	"https://example.com/actor/1#main-key"
http_signatures.digest.{algorithm}	string	The digest of the HTTP request body in hexadecimal. The {algorithm} is the digest algorithm (e.g., sha, sha-256).	"d41d8cd98f00b204e9800998ecf8427e"
ld_signatures.key_id	string	The public key ID of the Linked Data signature.	"https://example.com/actor/1#main-key"
ld_signatures.signature	string	The signature of the Linked Data in hexadecimal.	"73a74c990beabe6e59cc68f9c6db7811b59cbb22fd12dcffb3565b651540efe9"
ld_signatures.type	string	The algorithm of the Linked Data signature.	"RsaSignature2017"
object_integrity_proofs.cryptosuite	string	The cryptographic suite of the object integrity proof.	"eddsa-jcs-2022"
object_integrity_proofs.key_id	string	The public key ID of the object integrity proof.	"https://example.com/actor/1#main-key"
object_integrity_proofs.signature	string	The integrity proof of the object in hexadecimal.	"73a74c990beabe6e59cc68f9c6db7811b59cbb22fd12dcffb3565b651540efe9"
webfinger.resource	string	The queried resource URI.	"acct:[email protected]"
webfinger.resource.scheme	string	The scheme of the queried resource URI.	"acct"

maybe use retries instead of resend_count, or delivery_attempts