silverpillThis 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
All GNU social JP content and data are available under the