Pith Number

pith:VSAHFGBR

pith:2018:VSAHFGBRIRMZIOGGALRRNO7BG2

not attested not anchored not stored refs pending

Clustering students' open-ended questionnaire answers

Florian Berger, Mike Joy, Sami Huttunen, Wilhelmiina H\"am\"al\"ainen

arxiv:1809.07306 v1 · 2018-09-19 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VSAHFGBRIRMZIOGGALRRNO7BG2}

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	2026-05-18T00:05:20.141106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac8072983144599438c602e316bbe1369c86791d0da0e0f01a2dad91c6f5913d

Aliases

arxiv: 1809.07306 · arxiv_version: 1809.07306v1 · doi: 10.48550/arxiv.1809.07306 · pith_short_12: VSAHFGBRIRMZ · pith_short_16: VSAHFGBRIRMZIOGG · pith_short_8: VSAHFGBR

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/VSAHFGBRIRMZIOGGALRRNO7BG2 \
  | 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: ac8072983144599438c602e316bbe1369c86791d0da0e0f01a2dad91c6f5913d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12de80764246dcc3303d8faadbd28e86da51f53ca6b3d4034dfa53c635fbd1d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-09-19T17:28:33Z",
    "title_canon_sha256": "a9a9922c824cc1082c68298ac135c1ce552a9267c18ad503055cee63c9c458dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07306",
    "kind": "arxiv",
    "version": 1
  }
}