Pith Number

pith:IPX4MC24

pith:2007:IPX4MC24WC2UGYKWE2S3RYXVV7

not attested not anchored not stored refs pending

Time- and Space-Efficient Evaluation of Some Hypergeometric Constants

Emmanuel Thom\'e (INRIA Lorraine - LORIA), Eugene Zima, Guillaume Hanrot (INRIA Lorraine - LORIA), Howard Cheng, Paul Zimmermann (INRIA Lorraine - LORIA)

arxiv:cs/0701151 v1 · 2007-01-25 · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPX4MC24WC2UGYKWE2S3RYXVV7}

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	2026-05-18T01:09:19.662231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43efc60b5cb0b543615626a5b8e2f5afda5342acab1ce3c6c72efcd994b2dd58

Aliases

arxiv: cs/0701151 · arxiv_version: cs/0701151v1 · doi: 10.48550/arxiv.cs/0701151 · pith_short_12: IPX4MC24WC2U · pith_short_16: IPX4MC24WC2UGYKW · pith_short_8: IPX4MC24

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/IPX4MC24WC2UGYKWE2S3RYXVV7 \
  | 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: 43efc60b5cb0b543615626a5b8e2f5afda5342acab1ce3c6c72efcd994b2dd58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1998f4a08bb14f4132dc730a64616d1fd62b1f66e75cbce2ed491703f6ad2ef",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.SC",
    "submitted_at": "2007-01-25T08:07:38Z",
    "title_canon_sha256": "c261cbc18dc970fb5e777fd524d99ef79ec75af0c2543111b6c88bf667c504b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0701151",
    "kind": "arxiv",
    "version": 1
  }
}