Pith Number

pith:WEG45SZ6

pith:2017:WEG45SZ6WN5X233YMKQJKDJLC4

not attested not anchored not stored refs pending

Activity Archetypes in Question-and-Answer (Q&A) Websites - A Study of 50 Stack Exchange Instances

Denis Helic, Markus Strohmaier, Roman Kern, Simon Walk, Tiago Santos

arxiv:1709.05111 v2 · 2017-09-15 · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WEG45SZ6WN5X233YMKQJKDJLC4}

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	2026-05-17T23:48:57.432897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b10dcecb3eb37b7d6f7862a0950d2b17200a248198b1d8fa97f0646cdd209df3

Aliases

arxiv: 1709.05111 · arxiv_version: 1709.05111v2 · doi: 10.48550/arxiv.1709.05111 · pith_short_12: WEG45SZ6WN5X · pith_short_16: WEG45SZ6WN5X233Y · pith_short_8: WEG45SZ6

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/WEG45SZ6WN5X233YMKQJKDJLC4 \
  | 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: b10dcecb3eb37b7d6f7862a0950d2b17200a248198b1d8fa97f0646cdd209df3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e03c421cb25c2a30b53c68e2740ba024dc5aa7277ef7d03cde4c356504f30b8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2017-09-15T08:53:42Z",
    "title_canon_sha256": "7a8b339cc0f5102bcf41bee615fe1df6de8c3d4f4218b5df02d64e177dad5446"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05111",
    "kind": "arxiv",
    "version": 2
  }
}