RE: https://w3c.social/@w3c/116216070362563670

FWIW, I have been storing Linked Data (including ActivityPub) in an INI like format — because I find INI-like formats more human-friendly (to both read and write) than JSON.

YAML is probably better than JSON, too, in that respects. But I think […]

Dat boek hè... Getting things done... Ik heb een nieuwe titel... Having things done! YYYYYeeppp er wordt hard aan de website gewerkt. Updates onderweg! Stay tuned!

#vibecoding #SEO #jsonld #structureddata #vibemarketing

2.6 RDF Blank Nodes RDF blank nodes in Turtle are expressed as _: followed by a blank node label which is a series of name characters. The characters in the label are built upon PN_CHARS_BASE, liberalized as follows: • The characters _ and digits may appear anywhere in a blank node label. • The character . may appear anywhere except the first or last character. • The characters -, U+00B7, U+0300 to U+036F and U+203F to U+2040 are permitted anywhere except the first character.

I suspect that there is an error in the Turtle specification, in the section shown in the screen-shot.

(It relates to JSON-LD, which ActivityPub / ActivityStreams is built on.)

I suspect that "PN_CHARS_BASE" is an error.

Because other parts of other […]

[Original post on mastodon.social]

There is a larger discussion about fixed-point numbers versus floating-point numbers.

And that, ALL programming-languages should have fixed-point numbers built into them.

And that, programmers should be warned against using floating-point numbers in all but a set of very specialized situations […]

This specification allows implementations to set limits on the range and precision of numbers accepted. Since software that implements IEEE 754 binary64 (double precision) numbers [IEEE754] is generally available and widely used, good interoperability can be achieved by implementations that expect no more precision or range than these provide, in the sense that implementations will approximate JSON numbers within the expected precision. A JSON number such as 1E400 or 3.141592653589793238462643383279 may indicate potential interoperability problems, since it suggests that the software that created it expects receiving software to have greater capabilities for numeric magnitude and precision than is widely available.

[JSON vs IETF JSON]

This is likely (directly or indirectly) the fault of a single paragraph in IETF RFC-7159 / RFC-8259 (shown in the attached screen-shot).

(And note that, there is a difference between JSON and IETF JSON. JSON did not have this. IETF JSON […]

[Original post on mastodon.social]

number In the JSON serialization, a number is similar to that used in most programming languages, except that the octal and hexadecimal formats are not used and that leading zeros are not allowed. In the internal representation, a number is equivalent to either a long or double, depending on if the number has a non-zero fractional part (see [WEBIDL]).

This is from the JSON-LD spec.

ActivityPub / ActivityStream are based on JSON-LD.

I think it was a very bad idea for JSON-LD to define "number" this way!

It makes it so numbers with fractional values are inexact & lossy.

This include values that are […]

[Original post on mastodon.social]

Does sorting of keys impact interpretation? · schemaorg schemaorg · Discussion #4770 I am looking at storing schema.org structured JSON in IPFS as IPLD. As a content addressed system, IPLD sorts keys in a way that means all equivalent JSON receives the same content identifier, so w...

Does ordering of keys impact interpretation?

github.com/schemaorg/sc...

#SchemaOrg #JSON #JSONLD

I have deeply mixed feelings about #ActivityPub's adoption of JSON-LD, as someone who's spent way too long dealing with it while building #Fedify.

Part of me wishes it had never happened. A lot of developers jump into ActivityPub development without really understanding JSON-LD, and honestly […]

As a developer, you can do a lot to improve a website’s #SEO. Implementing #JSONLD structured data and adding a high-quality #FAQ section on each page can significantly improve your position in #Google search results.

#WebDevelopment #TechnicalSEO #StructuredData #SearchEngineOptimization

Nike, Superdry and Lacoste ads banned over green claims The advertising watchdog said the retailers misled shoppers with their 'sustainability' claims.

The UK Advertising Standards Authority just banned sustainability ads from @Nike, @Superdry, and @Lacoste for not having "robust evidence" - of the claims.

Only JSON-LD structured data can provide advertise-able proof.

www.bbc.com/news/article...

#Greenwashing #SustainabilityMarketing #JSONLD

For fans of knowledge graphs and RDF (all three of you), I've updated my list of JSON-LD in the wild and the list now has a DOI doi.org/10.5281/zeno... Recent additions include @dataoneorg.bsky.social (KNB), @ebi.embl.org Identifiers.org , and @datadryad.bsky.social.

AI SEO for E-commerce: Big Impact, Low Budget Boost e-commerce SEO with AI automation! Learn how to use AI for SEO audits, content, and growth on a budget. Dominate search with noryX!

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#JSONLD

6/12 📦 What do VDRs store? (NO personal data)

• Institutional authorisations and accreditations
• Credential schemas (European Learning Model v3.2)
• Terms of Use for selective disclosure
• StatusList2021 for revocation/suspension

#OpenStandards #LinkedData #JSONLD

Hey @pfefferle@mastodon.social @nutomic@lemmy.ml, I'm looking to integrate support for `postingRestrictedToMods`

I see some discussion here:

* https://github.com/friendica/friendica/issues/14377



It's a little specific, but even so, I'm happy to add it, since it solves some issues with […]

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#JSON #JSONLD #SEO

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How would one advertise a URI Template in a JSON-LD document?

#jsonld

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3/

I would assume that, from an ActivityPub & JSON-LD point-of-view, that these WARFN "bites" / "pokes" are probably some type of custom Activity type.

@news
@deadsuperhero

RE: https://wedistribute.org/2025/10/wafrn-chaotic-good/

#ActivityPub #FediUX #Fediverse #FediveseUX #JSONLD […]

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If you ever want to drive yourself to distraction then implement a fully compliant JSON-LD parser in a typesafe language.

Not just as a toy library that just implements the basal functions, but in the context of an actual production system. Doing actual production system things at production […]

RDFa Lite tries to be an "easier" subset of RDFa

RDFa is RDF encoded into HTML in a way that sort of feels like Microformats. Sort of

Of course, one question might be — easier for whom?

I think there could be an even "easier" subset of RDFa Lite that is easier for people writing parsers

Get […]