Policy version 2026-10-10
Cookie policy
What this library catalogue stores in your browser, why it is used, and how you control optional analytics.
Cookies and browser storage
Cookies are small values saved by your browser and sent with matching requests. Local storage stays in this browser; session storage lasts for the tab session. The catalogue below names the consent, account and preference storage used by the OPAC. Entries containing a hash represent a generated suffix.
Necessary
Storage needed to remember your choices, keep you signed in and provide the features you request.
psc_consent
Remembers your consent decision, document versions and receipt reference.
Cookie · Up to 1 year
locale
Remembers your selected language.
Local browser storage · Until you clear browser storage
patron_token
Stores the library sign-in token; the server separately enforces its expiry.
Local browser storage · Until sign-out or browser storage is cleared
patron
Keeps the minimal signed-in patron profile.
Local browser storage · Until sign-out or browser storage is cleared
patron_must_change_pin
Remembers whether a PIN change is required.
Local browser storage · Until sign-out or browser storage is cleared
theme
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
color-theme
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
opac-vn-typing-mode
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
opacA11y
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
opac.recordFormat
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
reader_tts_voice
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
reader_tts_rate
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
reader_mo_rate
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
opac:librarian:tts
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
pdfv:<hash>
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
epubv:<hash>
Remembers display, accessibility or reading preferences you choose.
Local browser storage · Until you clear browser storage
psczlis.opac.savedSearches.v1
Keeps searches you explicitly save on this browser.
Local browser storage · Until you clear browser storage
opac:librarian:conversation
Resumes the virtual librarian conversation in this tab.
Tab session storage · Until the tab is closed
opac:ai-help-widget:dismissed
Remembers that you dismissed the assistant in this tab.
Tab session storage · Until the tab is closed
opac:librarian-widget:dismissed
Remembers that you dismissed the assistant in this tab.
Tab session storage · Until the tab is closed
| Name and storage | Purpose | Retention |
|---|---|---|
| psc_consentCookie | Remembers your consent decision, document versions and receipt reference. | Up to 1 year |
| localeLocal browser storage | Remembers your selected language. | Until you clear browser storage |
| patron_tokenLocal browser storage | Stores the library sign-in token; the server separately enforces its expiry. | Until sign-out or browser storage is cleared |
| patronLocal browser storage | Keeps the minimal signed-in patron profile. | Until sign-out or browser storage is cleared |
| patron_must_change_pinLocal browser storage | Remembers whether a PIN change is required. | Until sign-out or browser storage is cleared |
| themeLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| color-themeLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| opac-vn-typing-modeLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| opacA11yLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| opac.recordFormatLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| reader_tts_voiceLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| reader_tts_rateLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| reader_mo_rateLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| opac:librarian:ttsLocal browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| pdfv:<hash>Local browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| epubv:<hash>Local browser storage | Remembers display, accessibility or reading preferences you choose. | Until you clear browser storage |
| psczlis.opac.savedSearches.v1Local browser storage | Keeps searches you explicitly save on this browser. | Until you clear browser storage |
| opac:librarian:conversationTab session storage | Resumes the virtual librarian conversation in this tab. | Until the tab is closed |
| opac:ai-help-widget:dismissedTab session storage | Remembers that you dismissed the assistant in this tab. | Until the tab is closed |
| opac:librarian-widget:dismissedTab session storage | Remembers that you dismissed the assistant in this tab. | Until the tab is closed |
Analytics
Optional visitor statistics and, when configured, Google Analytics or Matomo. Disabled until you give consent.
Checking the library’s analytics configuration. Optional processing remains disabled until a valid choice applies.
No storage is listed for this category in the current configuration.
Your active choice
Necessary storage supports the service or preference you request. Analytics requires a separate, affirmative choice: silence, closing the dialog and continuing to browse do not count as consent.
Recording your decision
The first-party psc_consent cookie records the policy and notice versions, time, language, offered and allowed purposes, decision method, random browser and decision references, and receipt ID. The library keeps a corresponding receipt; a validated signed-in session may link it to your patron number. The consent record stores no raw IP address or user agent. If sending fails, your local choice still applies and the latest pending decision is retried later.
Your data protection rights
You can view your decision, print a receipt and withdraw analytics consent here. See the Personal data notice for access, correction, deletion and other data-subject rights and how to contact the library.
Change or withdraw consent
Open Cookie settings in the footer at any time. Choose Necessary only to stop analytics and remove its accessible first-party cookies and visitor identifier. Withdrawal stops future optional processing; it does not undo processing already performed. Clearing browser storage or a change to the policy, notice or analytics configuration prompts a new choice.
Personal data beyond cookies
Cookie settings govern analytics only. Library accounts, requested services and AI features are described separately in the Personal data notice.
Personal data noticeQuestions and requests
Contact the library using its published contact details for questions about cookies or a request concerning your data.
Contact and exercise your rights