Pith Number

pith:WPMLZLN3

pith:2013:WPMLZLN3HZQHCF5B5QMGVZUBIK

not attested not anchored not stored refs pending

Good and bad points in scales

Chris Lambie-Hanson

arxiv:1311.5522 v2 · 2013-11-21 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WPMLZLN3HZQHCF5B5QMGVZUBIK}

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	2026-05-18T02:43:00.699447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3d8bcadbb3e607117a1ec186ae68142885ad8d918767a21c4206792cf533441

Aliases

arxiv: 1311.5522 · arxiv_version: 1311.5522v2 · doi: 10.48550/arxiv.1311.5522 · pith_short_12: WPMLZLN3HZQH · pith_short_16: WPMLZLN3HZQHCF5B · pith_short_8: WPMLZLN3

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/WPMLZLN3HZQHCF5B5QMGVZUBIK \
  | 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: b3d8bcadbb3e607117a1ec186ae68142885ad8d918767a21c4206792cf533441

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "951298e2f47e2f3d415a73bdcf84123a1473c21bf0c3134ed9a00420ad509679",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-11-21T19:14:47Z",
    "title_canon_sha256": "71c25cfffd14b9deeedcb9c45c78a26e1984af6d3afa0c8fff0ed2b67c9d9dbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5522",
    "kind": "arxiv",
    "version": 2
  }
}