Pith Number

pith:TQJ5FQC4

pith:2017:TQJ5FQC4E4IF2ELV6OJNPI27FN

not attested not anchored not stored refs pending

A Conceptual Model for Measuring the Complexity of Spreadsheets

Bernhard Waltl, Florian Matthes, Klym Shumaiev, Thomas Reschenhofer

arxiv:1704.01147 v1 · 2017-04-04 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TQJ5FQC4E4IF2ELV6OJNPI27FN}

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	2026-05-18T00:47:00.231229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c13d2c05c27105d1175f392d7a35f2b506a48377867aa5b0ee27e29e01fde2b

Aliases

arxiv: 1704.01147 · arxiv_version: 1704.01147v1 · doi: 10.48550/arxiv.1704.01147 · pith_short_12: TQJ5FQC4E4IF · pith_short_16: TQJ5FQC4E4IF2ELV · pith_short_8: TQJ5FQC4

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/TQJ5FQC4E4IF2ELV6OJNPI27FN \
  | 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: 9c13d2c05c27105d1175f392d7a35f2b506a48377867aa5b0ee27e29e01fde2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55f9c6cc590c02a99a105e239803a8952d71607641a18650061002728a746143",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-04-04T18:31:08Z",
    "title_canon_sha256": "c7a0c3b086890e1e251c0b29e3649c72ba9b7b554192b9be23fb770a7a6b2c47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01147",
    "kind": "arxiv",
    "version": 1
  }
}