https://w3id.org/np/RA4k6eIjciIqSaQXv836fgVVASHm99UVIaZZhc_lF8IOU
type: Nanopublication
has assertion: assertion
has provenance: provenance
has publication info: pubinfo
created: 2026-06-09T08:47:02Z
creator: Tobias Kuhn
license: https://creativecommons.org/licenses/by/4.0/
embeds: Get user introductions

Get user introductions
type: grlc-query
description: Returns the introduction nanopublications of a given user (creation date, key location, declared public-key hashes), plus session-relative action targets from the viewer's local key (?__LOCALPUBKEY_multi) and site URL (?__SITEURL_multi): conditional retract/derive targets that are owner-gated (?_user_iri = ?__CURRENTUSER_multi_iri) and computed against the same notion of a 'local introduction' as the UI: an introduction SIGNED BY the local key, DECLARING the local key, whose local-key declaration has no location or matches the site URL (nanobench->nanodash). retract_target fires on a local introduction when there is more than one (duplicate cleanup); derive_target fires on a non-local introduction when there are zero local introductions. The retract/derive/local columns are action-mapping data (hidden from display by the result builders). The keys column annotates each declared key hash with its trust-approval status, federated from the trust repo: a checkmark when the key is loaded/approved for the user, a warning sign otherwise.
license: LICENSE-2.0
sparql: prefix np: <http://www.nanopub.org/nschema#> prefix npx: <http://purl.org/nanopub/x/> prefix npa: <http://purl.org/nanopub/admin/> prefix dct: <http://purl.org/dc/terms/> select (max(?date0) as ?date) (sample(str(?keyLocation)) as ?location) (group_concat(distinct ?keyAnnotated; separator=", ") as ?keys) ?np ("^" as ?np_label) (if(max(?isOwner) > 0 && max(?signedByLocal) > 0 && sum(?localDeclOk) > 0 && ?localCount > 1, str(?np), "") as ?retract_target) (if(max(?isOwner) > 0 && (max(?signedByLocal) = 0 || sum(?localDeclOk) = 0) && ?localCount = 0 && max(?lpkBound) > 0, str(?np), "") as ?derive_target) (sample(?lpk) as ?local_pubkey) (sample(?lpkShort) as ?local_pubkey_short) (sample(?siteUrl) as ?site_url) where { values ?__LOCALPUBKEY_multi {} values ?__SITEURL_multi {} values ?__CURRENTUSER_multi_iri {} graph npa:graph { ?np npa:hasValidSignatureForPublicKey ?introPubkey . filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKey ?introPubkey . } ?np dct:created ?date0 . ?np np:hasAssertion ?a . } graph ?a { ?keydeclaration npx:declaredBy ?_user_iri . ?keydeclaration npx:hasPublicKey ?pubkey . optional { ?keydeclaration npx:hasKeyLocation ?keyLocation . } bind(substr(sha256(?pubkey), 1, 10) as ?keyHash) bind(lcase(sha256(str(?pubkey))) as ?keyHashFull) } bind(if(exists { service <https://w3id.org/np/l/nanopub-query-1.1/repo/trust> { graph npa:graph { npa:thisRepo npa:hasCurrentTrustState ?tg . } graph ?tg { ?acct npa:agent ?_user_iri ; npa:pubkey ?keyHashFull ; npa:trustStatus npa:loaded . } } }, concat("✅ ", ?keyHash), concat("⚠️ ", ?keyHash)) as ?keyAnnotated) bind(coalesce(if(str(?pubkey) = str(?__LOCALPUBKEY_multi), 1, 0), 0) as ?isLocal) bind(if(?isLocal = 1 && (!bound(?keyLocation) || coalesce(str(?keyLocation) = str(?__SITEURL_multi), false) || coalesce(replace(str(?keyLocation), "nanobench", "nanodash") = str(?__SITEURL_multi), false)), 1, 0) as ?localDeclOk) bind(coalesce(if(str(?introPubkey) = str(?__LOCALPUBKEY_multi), 1, 0), 0) as…

sig
has algorithm: RSA
signed by: Tobias Kuhn