https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/Head https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/assertion https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/provenance https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/pubinfo https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/assertion https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/get-view-displays-unresolved http://purl.org/dc/terms/description Variant of get-view-displays (ref-scoped) that returns view references UNRESOLVED: the ?view column carries the version IRI the display/preset actually references (or, for space-governed pins, the governed resolution), and resolving a referenced version to the current supersedes-head is the CALLER's job (Nanodash: per-view latest-version lookups through ApiCache, forced refresh on own publishes). This removes the former run-once repo-wide resolution sub-select -- the query's dominant and fragility-prone cost, linear in the total view count -- leaving only bound point lookups; see nanopub-query doc/design-view-head-materialization.md for the measurements. Same inputs as get-view-displays-ref-scoped (resource = space IRI, root_np = the ref's root nanopub; authority gate scoped to that ref) and the same columns, plus ?governedBySpace: when bound, the row's ?view is the space-governed resolution (newest member+-signed version of its (kind, space) pair, kind validated as maintained resource; nanodash docs/views-and-presets-as-maintained-resources.md) and the caller must NOT apply supersedes-head resolution on top of it; when unbound, the caller resolves ?view to its latest version. ?viewKind is taken from the referenced version's own dct:isVersionOf (version-stable, hence equal to the head's kind), falling back to ?view itself for kind-less legacy views. Federation footprint (2026-08-20): the query now runs on the repo/full endpoint, so the former SERVICE hops to repo/full (preset branch) and to the ResourceView type repo (view lookups, governed candidates) are plain local patterns; only the two lookups of materialized space state (authority gate, governed-signer validation) remain federated, to repo/spaces. The previous 5-SERVICE layout was the main amplifier of a connection-pool deadlock in the query service's loopback federation (an outer query holds a pooled connection while each SERVICE hop -- one per binding under a nested-loop join -- requests another from the same pool): a thread dump during a production wedge showed all 60 route connections held by result streamers of exactly these hops. Validated byte-for-byte identical to the previous version across resources covering standalone displays, preset assignments, governed views, an agent's own page, and rival space refs. https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/get-view-displays-unresolved http://purl.org/dc/terms/license http://www.apache.org/licenses/LICENSE-2.0 https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/get-view-displays-unresolved http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/kpxl/grlc/grlc-query https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/get-view-displays-unresolved http://www.w3.org/2000/01/rdf-schema#label Get view displays (unresolved versions) https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/get-view-displays-unresolved https://w3id.org/kpxl/grlc/endpoint https://w3id.org/np/l/nanopub-query-1.1/repo/full https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/get-view-displays-unresolved https://w3id.org/kpxl/grlc/sparql prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> prefix dct: <http://purl.org/dc/terms/> prefix np: <http://www.nanopub.org/nschema#> prefix npa: <http://purl.org/nanopub/admin/> prefix npx: <http://purl.org/nanopub/x/> prefix gen: <https://w3id.org/kpxl/gen/terms/> select distinct ?display ?view (coalesce(?pinKind, ?view) as ?viewKind) ?governedBySpace ?label ?displayType ?displayMode ?np ?pubkey ?date where { values ?_resource_multi_iri {} values ?_root_np_multi_iri {} service <https://w3id.org/np/l/nanopub-query-1.1/repo/spaces> { graph npa:graph { npa:thisRepo npa:hasCurrentSpaceState ?stateG . } graph npa:spacesGraph { ?passedRef npa:rootNanopub ?_root_np_multi_iri . } { # Authority gate (issue #130 / nanodash#510): a single mandatory hop through the # governing space ref, which covers both a maintained resource and a space itself # (the reflexive self-edge), keyed on the role tier materialized on the # RoleInstantiation since #125. Replaces the old bare-IRI isMaintainedBy? hop and the # dead RoleDeclaration maintainer join. Ref variant: the governing ref is pinned to # ?passedRef (resolved from root_np), so authority cannot bleed across rival refs # claiming the same space IRI. graph ?stateG { ?_resource_multi_iri npa:hasGoverningSpaceRef ?passedRef . ?ri a gen:RoleInstantiation ; npa:forSpaceRef ?passedRef ; npa:hasRoleType ?roleType ; npa:forAgent ?authAgent . filter(?roleType = gen:AdminRole || ?roleType = gen:MaintainerRole) ?authAcct a npa:AccountState ; npa:agent ?authAgent ; npa:pubkey ?pubkey . } } union { graph ?stateG { ?selfAcct a npa:AccountState ; npa:agent ?_resource_multi_iri ; npa:pubkey ?pubkey . } } } { # branch (a): standalone view displays — LOCAL pattern on the endpoint repo graph npa:graph { ?np npx:hasNanopubType gen:ViewDisplay . ?np npa:hasValidSignatureForPublicKeyHash ?pubkey . filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKeyHash ?pubkey . } ?np dct:created ?date . ?np npx:embeds ?display . ?np np:hasAssertion ?a . optional { ?np rdfs:label ?label } } graph ?a { ?display gen:isDisplayOfView ?refView . ?display gen:isDisplayFor ?_resource_multi_iri . optional { values ?displayType { gen:PartLevelViewDisplay gen:TopLevelViewDisplay } ?display a ?displayType . } optional { values ?displayMode { gen:ActivatedViewDisplay gen:DeactivatedViewDisplay } ?display a ?displayMode . } } } union { # branch (b): preset-supplied views — LOCAL since the endpoint moved to # repo/full (the connection-pinning SERVICE hop this replaced was the main # amplifier of the federation deadlock, eclipse-rdf4j/rdf4j federation + # nanopub-query loopback route). Kept wrapped in a sub-SELECT so its # bindings cannot collapse branch (a). ?display stays unbound. select ?refView ?label ?displayType ?displayMode ?np ?pubkey ?date ?_resource_multi_iri { { # was: service repo/full — now local on the repo/full endpoint graph npa:graph { ?np npx:hasNanopubType gen:PresetAssignment . ?np npa:hasValidSignatureForPublicKeyHash ?pubkey . filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKeyHash ?pubkey . } ?np dct:created ?date . ?np npx:embeds ?assignment . ?np np:hasAssertion ?a . optional { ?np rdfs:label ?label } } graph ?a { ?assignment gen:isAssignmentFor ?_resource_multi_iri . ?assignment gen:isAssignmentOfPreset ?presetRef . optional { values ?displayMode { gen:ActivatedPresetAssignment gen:DeactivatedPresetAssignment } ?assignment a ?displayMode . } } graph npa:graph { ?presetNp npx:embeds ?presetRef ; np:hasAssertion ?pa . } graph ?pa { ?presetRef a gen:Preset . { ?presetRef gen:hasTopLevelView ?refView . bind(gen:TopLevelViewDisplay as ?displayType) } union { ?presetRef gen:hasView ?refView . bind(gen:PartLevelViewDisplay as ?displayType) } } } } } # Pin metadata of the referenced version (kind + optional governing space). # ?refView is bound by branch (a)/(b) at this point, so these are bound point # lookups for the handful of referenced views — now LOCAL joins (endpoint = # repo/full), where previously each was its own SERVICE round-trip: evaluated # under a nested-loop join, that fired one loopback HTTP request per # referenced view while the outer query held its own pooled connection — the # per-binding amplification at the heart of the federation deadlock. NOT # wrapped in a sub-select, deliberately: a run-once sub-select could not see # outer bindings and would have to enumerate every view in the repository # (the measured dominant cost of the former resolution variant; # supersedes-head resolution itself happens caller-side, per view, cached). optional { { # was: service repo/type/ec6722… (ResourceView shard) — now local on the repo/full endpoint graph npa:graph { ?rnp npx:embeds ?refView ; np:hasAssertion ?ra . } graph ?ra { ?refView a gen:ResourceView . } optional { graph ?ra { ?refView dct:isVersionOf ?pinKind . } } optional { graph ?ra { ?refView gen:governedBy ?pinSpace . } } } } # Space-governed resolution (gen:governedBy; nanodash docs/views-and-presets-as- # maintained-resources.md): a pinned version declaring a governing space resolves to # the newest member+-signed version of its (kind, space) pair instead of the # supersedes head; no valid candidate -> the pin stands. Joins on (?pinKind, # ?pinSpace) from the bound lookup above; rows without a governing space are # unaffected. optional { { select ?pinKind ?pinSpace (iri(strafter(max(concat(str(?cDate), ">", str(?cver))), ">")) as ?governedLatest) where { # Candidate versions — was a service on the ResourceView type shard, now # local on the repo/full endpoint. The sub-select wrapper is LOAD-BEARING, # not stylistic: on rdf4j 6.0.0, bindings produced by raw statement # patterns are silently NOT joined into a subsequent SERVICE clause # (empirically: identical bindings via VALUES join fine, via bare # patterns yield zero rows, and any projecting sub-select restores the # join — reproduced on two instances, 2026-08-20). Without this wrapper # the spaces SERVICE below returns nothing and governed resolution # silently falls back to the pin. { select ?pinKind ?pinSpace ?cver ?cpk ?cDate where { graph npa:graph { ?cnp dct:created ?cDate ; npa:hasValidSignatureForPublicKeyHash ?cpk ; npx:embeds ?cver ; np:hasAssertion ?ca . filter not exists { ?ci npx:invalidates ?cnp ; npa:hasValidSignatureForPublicKeyHash ?cpk . } } graph ?ca { ?cver dct:isVersionOf ?pinKind ; gen:governedBy ?pinSpace . } } } service <https://w3id.org/np/l/nanopub-query-1.1/repo/spaces> { graph npa:graph { <http://purl.org/nanopub/admin/thisRepo> npa:hasCurrentSpaceState ?gsg . } graph ?gsg { ?pinKind npa:isMaintainedBy ?pinSpace ; npa:hasGoverningSpaceRef ?gref . ?gri a gen:RoleInstantiation ; npa:forSpace ?pinSpace ; npa:forSpaceRef ?gref ; npa:hasRoleType ?gtier ; npa:forAgent ?gag . filter(?gtier = gen:AdminRole || ?gtier = gen:MaintainerRole || ?gtier = gen:MemberRole) ?gacct a npa:AccountState ; npa:agent ?gag ; npa:pubkey ?cpk . } } } group by ?pinKind ?pinSpace } } bind(if(bound(?pinSpace), coalesce(?governedLatest, ?refView), ?refView) as ?view) bind(if(bound(?pinSpace), ?pinSpace, ?undef_) as ?governedBySpace) } order by desc(?date) https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/provenance https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/assertion http://www.w3.org/ns/prov#wasAttributedTo https://orcid.org/0000-0002-1267-0234 https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/pubinfo https://orcid.org/0000-0002-1267-0234 http://xmlns.com/foaf/0.1/name Tobias Kuhn https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://purl.org/dc/terms/created 2026-08-20T06:18:42Z https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://purl.org/dc/terms/creator https://orcid.org/0000-0002-1267-0234 https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://purl.org/dc/terms/license https://creativecommons.org/licenses/by/4.0/ https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://purl.org/nanopub/x/embeds https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/get-view-displays-unresolved https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://purl.org/nanopub/x/supersedes https://w3id.org/np/RAXdRFNLE1jB_NTaWrwIC9965SmZdZKB96VFnj1HvjdbY https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 http://www.w3.org/2000/01/rdf-schema#label Get view displays (unresolved versions) https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 https://w3id.org/np/o/ntemplate/wasCreatedFromProvenanceTemplate https://w3id.org/np/RA7lSq6MuK_TIC6JMSHvLtee3lpLoZDOqLJCLXevnrPoU https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RA0J4vUn_dekg-U1kK3AOEt02p9mT2WO03uGxLDec1jLw https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RAoTD7udB2KtUuOuAe74tJi1t3VzK0DyWS7rYVAq1GRvw https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RAukAcWHRDlkqxk7H2XNSegc1WnHI569INvNr-xdptDGI https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 https://w3id.org/np/o/ntemplate/wasCreatedFromTemplate https://w3id.org/np/RAEFAt-QcFK0ZhqfvlsmS10BnzGJA0xwOICZXkO-ai87k https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/sig http://purl.org/nanopub/x/hasAlgorithm RSA https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/sig http://purl.org/nanopub/x/hasPublicKey MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwUtewGCpT5vIfXYE1bmf/Uqu1ojqnWdYxv+ySO80ul8Gu7m8KoyPAwuvaPj0lvPtHrg000qMmkxzKhYknEjq8v7EerxZNYp5B3/3+5ZpuWOYAs78UnQVjbHSmDdmryr4D4VvvNIiUmd0yxci47dTFUj4DvfHnGd6hVe5+goqdcwIDAQAB https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/sig http://purl.org/nanopub/x/hasSignature MurRHJuh+quO7K4wT+Tv2GvTuIp0RULmUH9jtr0LYCJ0hGQglNmHWN4nWXqVREZHVslpuo0ix6ZxbB8X27MH+CDo9GwsNubKPRz1FTOKlOiH3zJKTduxoJKELbbjHIR21lAAksHWtSL66aqTIUHEWPFVLYEBU2vP9oizO9VKoko= https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/sig http://purl.org/nanopub/x/hasSignatureTarget https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4 https://w3id.org/np/RAkIkmSiwDT-bgYZhGtknPhpkHsJcx0Q3nP0u8OyO_fZ4/sig http://purl.org/nanopub/x/signedBy https://orcid.org/0000-0002-1267-0234