Pith Number

pith:AR5PWDV2

pith:2018:AR5PWDV26WYP3ZNMYKXLREBEH6

not attested not anchored not stored refs pending

The Future of Spreadsheets in the Big Data Era

David Birch, David Lyford-Smith, Yike Guo

arxiv:1801.10231 v1 · 2018-01-30 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AR5PWDV26WYP3ZNMYKXLREBEH6}

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	2026-05-18T00:24:41.373457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

047afb0ebaf5b0fde5acc2aeb890243f984d7be9c37968e8ac5612490db45f88

Aliases

arxiv: 1801.10231 · arxiv_version: 1801.10231v1 · doi: 10.48550/arxiv.1801.10231 · pith_short_12: AR5PWDV26WYP · pith_short_16: AR5PWDV26WYP3ZNM · pith_short_8: AR5PWDV2

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/AR5PWDV26WYP3ZNMYKXLREBEH6 \
  | 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: 047afb0ebaf5b0fde5acc2aeb890243f984d7be9c37968e8ac5612490db45f88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5289d4fe1a67179df769e46cad8212f33a8c889652ecf4ddd76943919aaabeea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-01-30T21:37:28Z",
    "title_canon_sha256": "a94e48ab60a033710b599fbbbd58737be08136c59c2308397de7d10ddbaac972"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.10231",
    "kind": "arxiv",
    "version": 1
  }
}