Pith Number

pith:EKNL3DKI

pith:2003:EKNL3DKIFK5NBS5EAR7MG5KCIB

not attested not anchored not stored refs pending

There are Salem numbers of every trace

Chris Smyth, James McKee

arxiv:math/0308213 v2 · 2003-08-22 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EKNL3DKIFK5NBS5EAR7MG5KCIB}

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	2026-05-18T01:05:28.700911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

229abd8d482abad0cba4047ec375424053530b4b78646a8e7d433c8c554693b2

Aliases

arxiv: math/0308213 · arxiv_version: math/0308213v2 · doi: 10.48550/arxiv.math/0308213 · pith_short_12: EKNL3DKIFK5N · pith_short_16: EKNL3DKIFK5NBS5E · pith_short_8: EKNL3DKI

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/EKNL3DKIFK5NBS5EAR7MG5KCIB \
  | 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: 229abd8d482abad0cba4047ec375424053530b4b78646a8e7d433c8c554693b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bc2f71cb7ebe125d75ab692fd3b0ed5a8edec28c8e082b7c7b60eed8c2e808c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.NT",
    "submitted_at": "2003-08-22T13:53:24Z",
    "title_canon_sha256": "7d0b130a676bb6de3d946ef61c0ce54da34c30ad3cda6d152df266944613063e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0308213",
    "kind": "arxiv",
    "version": 2
  }
}