Pith Number

pith:QZITARBU

pith:2014:QZITARBUJXREWJPNNUHZVUNIKM

not attested not anchored not stored refs pending

A Conceptual UX-aware Model of Requirements

Agneta Nilsson, Pariya Kashfi, Richard Berntsson Svensson, Robert Feldt

arxiv:1409.4194 v2 · 2014-09-15 · cs.SE · cs.HC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZITARBUJXREWJPNNUHZVUNIKM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:11:43.932293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86513044344de24b25ed6d0f9ad1a853361c51d3f5c66670f5a4c2d6f1764704

Aliases

arxiv: 1409.4194 · arxiv_version: 1409.4194v2 · doi: 10.48550/arxiv.1409.4194 · pith_short_12: QZITARBUJXRE · pith_short_16: QZITARBUJXREWJPN · pith_short_8: QZITARBU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QZITARBUJXREWJPNNUHZVUNIKM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 86513044344de24b25ed6d0f9ad1a853361c51d3f5c66670f5a4c2d6f1764704

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c32666cf36557ca37d701ce1620abc0de6aeb3a8caa8174fb3269e72ae003e3",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2014-09-15T09:45:48Z",
    "title_canon_sha256": "fd08b316290d20b10e7f28886baf550ff368a0b50d2b93b6756167be089e36b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4194",
    "kind": "arxiv",
    "version": 2
  }
}