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   silverpill (silverpill@mitra.social)'s status on Sunday, 15-Jun-2025 04:01:32 JST silverpill

   @mikedev

   https://w3id.org/fep/844e should work:

   { "@context": [ "https://www.w3.org/ns/activitystreams", "https://w3id.org/fep/844e" ], "type": "Application", "id": "https://social.example/server", "implements": [ { "href": "https://datatracker.ietf.org/doc/html/rfc9421", "name": "RFC-9421: HTTP Message Signatures" } ] }
2. Embed this notice
   silverpill (silverpill@mitra.social)'s status on Tuesday, 10-Jun-2025 20:14:15 JST silverpill

   @mikedev

   This is an activity I received:

   {"@context":["https://www.w3.org/ns/activitystreams","https://w3id.org/security/v1","https://www.w3.org/ns/did/v1","https://w3id.org/security/multikey/v1","https://w3id.org/security/data-integrity/v1","https://w3id.org/fep/c390",{"Category":"nomad:Category","Hashtag":"as:Hashtag","Sync":"nomad:Sync","canReply":"toot:canReply","canSearch":"nomad:canSearch","collectionOf":"nomad:collectionOf","contextHistory":{"@container":"@list","@id":"https://w3id.org/fep/171b/contextHistory","@type":"@id"},"copiedTo":"nomad:copiedTo","directMessage":"nomad:directMessage","discoverable":"toot:discoverable","expires":"nomad:expires","gateways":{"@container":"@list","@id":"https://w3id.org/fep/ef61/gateways","@type":"@id"},"indexable":"toot:indexable","joinMode":"https://w3id.org/fep/8a8e/joinMode","manuallyApprovesFollowers":"as:manuallyApprovesFollowers","movedTo":"as:movedTo","nomad":"https://macgirvin.com/apschema#","oauthRegistrationEndpoint":"nomad:oauthRegistrationEndpoint","openWebAuth":"nomad:openWebAuth","owaRedirect":"nomad:owaRedirect","permissions":"nomad:permissions","searchContent":"nomad:searchContent","searchTags":"nomad:searchTags","sensitive":"as:sensitive","timezone":"http://www.w3.org/2006/time#timezone","toot":"http://joinmastodon.org/ns#","webfinger":{"@id":"wf:webfinger","@type":"xsd:string"},"wf":"https://purl.archive.org/socialweb/webfinger#","xsd":"http://www.w3.org/2001/XMLSchema#"}],"actor":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/actor","cc":[],"context":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/conversation/history/3f3e6efe-9bac-425d-9692-4df179937c5f","contextHistory":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/conversation/history/3f3e6efe-9bac-425d-9692-4df179937c5f","directMessage":true,"id":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/activity/3f3e6efe-9bac-425d-9692-4df179937c5f","object":{"attributedTo":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/actor","canReply":["https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/actor/followers"],"cc":[],"content":"@!<span class=\"h-card\"><a class=\"u-url mention\" href=\"https://mitra.social/users/silverpill\" target=\"_blank\" rel=\"nofollow noopener\" >silverpill@mitra.social</a></span> Here's an activity that should be signed with RFC9421.","context":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/conversation/history/3f3e6efe-9bac-425d-9692-4df179937c5f","contextHistory":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/conversation/history/3f3e6efe-9bac-425d-9692-4df179937c5f","directMessage":true,"id":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/item/3f3e6efe-9bac-425d-9692-4df179937c5f","proof":{"created":"2025-06-09T21:22:04Z","cryptosuite":"eddsa-jcs-2022","proofPurpose":"assertionMethod","proofValue":"zcxM3mfRbyXsbNx3YZypxjMPhVxcBuyo6Lz6ZUz9hmHaEok7mfG9Db9oA8uz9LWzF7EZnHHKKBn5UuM81FNmXPDo","type":"DataIntegrityProof","verificationMethod":"did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk"},"published":"2025-06-09T21:22:04Z","replies":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/replies/3f3e6efe-9bac-425d-9692-4df179937c5f","source":{"content":"@![url=https://mitra.social/users/silverpill]silverpill[/url] Here's an activity that should be signed with RFC9421.","mediaType":"text/x-multicode"},"tag":[{"href":"https://mitra.social/users/silverpill","name":"@silverpill@mitra.social","type":"Mention"}],"to":["https://mitra.social/users/silverpill"],"type":"Note","url":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/item/3f3e6efe-9bac-425d-9692-4df179937c5f"},"proof":{"created":"2025-06-09T21:22:05Z","cryptosuite":"eddsa-jcs-2022","proofPurpose":"assertionMethod","proofValue":"z5tDnWHWDj2JyaA3CHAcDe3Qy3K77HtSMrAGsucSk6pbp3bsbuUU8cZR5NkQyfE273JgT9FwYaCrtTAXUN4oJocNQ","type":"DataIntegrityProof","verificationMethod":"did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk"},"published":"2025-06-09T21:22:04Z","tag":[{"href":"https://mitra.social/users/silverpill","name":"@silverpill@mitra.social","type":"Mention"}],"target":{"attributedTo":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/actor","id":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/conversation/history/3f3e6efe-9bac-425d-9692-4df179937c5f","type":"Collection"},"to":["https://mitra.social/users/silverpill"],"type":"Create","url":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/activity/3f3e6efe-9bac-425d-9692-4df179937c5f"}

   I can verify the activity, but not its object.

   Canonicalized object (with proof taken out):

   {"attributedTo":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/actor","canReply":["https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/actor/followers"],"cc":[],"content":"@!<span class=\"h-card\"><a class=\"u-url mention\" href=\"https://mitra.social/users/silverpill\" target=\"_blank\" rel=\"nofollow noopener\" >silverpill@mitra.social</a></span> Here's an activity that should be signed with RFC9421.","context":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/conversation/history/3f3e6efe-9bac-425d-9692-4df179937c5f","contextHistory":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/conversation/history/3f3e6efe-9bac-425d-9692-4df179937c5f","directMessage":true,"id":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/item/3f3e6efe-9bac-425d-9692-4df179937c5f","published":"2025-06-09T21:22:04Z","replies":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/replies/3f3e6efe-9bac-425d-9692-4df179937c5f","source":{"content":"@![url=https://mitra.social/users/silverpill]silverpill[/url] Here's an activity that should be signed with RFC9421.","mediaType":"text/x-multicode"},"tag":[{"href":"https://mitra.social/users/silverpill","name":"@silverpill@mitra.social","type":"Mention"}],"to":["https://mitra.social/users/silverpill"],"type":"Note","url":"https://macgirvin.com/.well-known/apgateway/did🔑z6MkhPXNfiHDh2qSNjFzZ9yY27C1iHnHVbb1eaxuoiEe4tjk/item/3f3e6efe-9bac-425d-9692-4df179937c5f"}

   Signature base (object and proof config hashes):

   3e51edddfe2378d071b6a79f091150b035045e80d053ce180893f000c5fba50197b90ed2cf47016298ae77a9a8572ba32c39e0570aa31c85033f54525af733bb
3. Embed this notice
   pwm (pwm@darkdork.dev)'s status on Friday, 02-May-2025 04:26:22 JST pwm

   @syzygy

   [WARN] failed to process activity (unsolicited message from http://naraka2a5g5fxahbtl5djuau6rbja7an7oor2f6mb2jlpfhqh6ftjdqd.onion/users/syzygy): {"@context":"https://www.w3.org/ns/activitystreams","actor":"http://naraka2a5g5fxahbtl5djuau6rbja7an7oor2f6mb2jlpfhqh6ftjdqd.onion/users/syzygy","id":"http://naraka2a5g5fxahbtl5djuau6rbja7an7oor2f6mb2jlpfhqh6ftjdqd.onion/objects/72636165-6574-0000-0000-deadbabecafe","object":{"@context":["https://www.w3.org/ns/activitystreams"],"actor":"http://naraka2a5g5fxahbtl5djuau6rbja7an7oor2f6mb2jlpfhqh6ftjdqd.onion/users/syzygy","attributedTo":"http://naraka2a5g5fxahbtl5djuau6rbja7an7oor2f6mb2jlpfhqh6ftjdqd.onion/users/syzygy","content":"Hello, world.","id":"http://naraka2a5g5fxahbtl5djuau6rbja7an7oor2f6mb2jlpfhqh6ftjdqd.onion/objects/00000000-0000-0000-0000-deadbabecafe","published":"2025-01-16T14:21:07.333333Z","to":["https://www.w3.org/ns/activitystreams#Public"],"type":"Note"},"published":"2025-01-16T14:21:06.777777Z","to":["https://www.w3.org/ns/activitystreams#Public"],"type":"Create"}
4. Embed this notice
   silverpill (silverpill@mitra.social)'s status on Sunday, 13-Apr-2025 02:41:40 JST silverpill

   @mapache I can't follow it because instead of Accept activity it sends this (no type property):

   {"@context":"https://www.w3.org/ns/activitystreams","actor":"https://badges.vocalcat.com/actors/badges.vocalcat.com/badgefed","id":"https://badges.vocalcat.com/actors/badges.vocalcat.com/badgefed#accepts/follows/https://mitra.social/users/silverpill","object":{"actor":"https://mitra.social/users/silverpill","id":"https://mitra.social/activities/follow/01962b0c-d8db-5c26-f688-c80cd60332a3","object":"https://badges.vocalcat.com/actors/badges.vocalcat.com/badgefed","type":"Follow"}}
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    (mint@ryona.agency)'s status on Wednesday, 02-Apr-2025 02:56:36 JST 

   in reply to
   @sun @david @pwm @i @phnt @feld @hfaust
   >curl -H "Accept: application/activity+json" https://shitposter.world/objects/7f3a4d17-e079-4ccd-bf79-859c78863397
   <{"@context":["https://www.w3.org/ns/activitystreams",[..]
   Appears to have worked.
6. Embed this notice
   silverpill (silverpill@mitra.social)'s status on Monday, 17-Mar-2025 05:39:54 JST silverpill

   @mapache There is a little problem with this actor. The server returns an HTML document when request is made with Accept header value required by ActivityPub spec: https://www.w3.org/TR/activitypub/#retrieving-objects

   To reproduce:

   curl -L -H 'Accept: application/ld+json; profile="https://www.w3.org/ns/activitystreams"' https://badges.vocalcat.com/actors/badges.vocalcat.com/fediverse