Pith Number

pith:37UJHEHR

pith:2017:37UJHEHR3WDXPQJ3KMV52NUBAC

not attested not anchored not stored refs pending

Approximation by crystal-refinable function

Alejandro Quintero, Maria del Carmen Moure, Ursula Molter

arxiv:1701.08226 v2 · 2017-01-28 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{37UJHEHR3WDXPQJ3KMV52NUBAC}

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	2026-05-18T00:02:50.039638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfe89390f1dd8777c13b532bdd368100a1a90d685e952babf58d78b1c8c6db62

Aliases

arxiv: 1701.08226 · arxiv_version: 1701.08226v2 · doi: 10.48550/arxiv.1701.08226 · pith_short_12: 37UJHEHR3WDX · pith_short_16: 37UJHEHR3WDXPQJ3 · pith_short_8: 37UJHEHR

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/37UJHEHR3WDXPQJ3KMV52NUBAC \
  | 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: dfe89390f1dd8777c13b532bdd368100a1a90d685e952babf58d78b1c8c6db62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8232ee4a8e00f80fba104b38200bc75cce4316053bf846380f49de69d9a548de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-01-28T00:11:14Z",
    "title_canon_sha256": "938223bb800b84875f047e4b701720b10fb2b67b6c03ee23de0b3b25fd2128fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.08226",
    "kind": "arxiv",
    "version": 2
  }
}