Pith Number

pith:2Q4G2WHM

pith:2019:2Q4G2WHMP44C7KLSZTFF22I5MD

not attested not anchored not stored refs pending

Numerically Stable Polynomially Coded Computing

Mohammad Fahim, Viveck R. Cadambe

arxiv:1903.08326 v2 · 2019-03-20 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Q4G2WHMP44C7KLSZTFF22I5MD}

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	2026-05-17T23:45:22.324142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4386d58ec7f382fa972ccca5d691d60e5a41ab02a9c655cfefb61f45c4d1b7a

Aliases

arxiv: 1903.08326 · arxiv_version: 1903.08326v2 · doi: 10.48550/arxiv.1903.08326 · pith_short_12: 2Q4G2WHMP44C · pith_short_16: 2Q4G2WHMP44C7KLS · pith_short_8: 2Q4G2WHM

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/2Q4G2WHMP44C7KLSZTFF22I5MD \
  | 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: d4386d58ec7f382fa972ccca5d691d60e5a41ab02a9c655cfefb61f45c4d1b7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45932bcf6752b8fc95c7e971b06b2dae9a4de4654a6b21f895227e665200099e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-03-20T03:24:53Z",
    "title_canon_sha256": "7b41f28316727e2cf0a442a7679bf3aaf748b446be7728b1f417fd37272a334d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08326",
    "kind": "arxiv",
    "version": 2
  }
}