Pith Number

pith:OUPUY3EB

pith:2013:OUPUY3EBVDEK5CRP2OUG5UWMPP

not attested not anchored not stored refs pending

Book inequalities

Laszlo Csirmaz

arxiv:1312.6490 v3 · 2013-12-23 · 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{OUPUY3EBVDEK5CRP2OUG5UWMPP}

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	2026-05-18T02:50:51.677165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

751f4c6c81a8c8ae8a2fd3a86ed2cc7bcfee769b9d1553b9bb58c70fa1c8d10c

Aliases

arxiv: 1312.6490 · arxiv_version: 1312.6490v3 · doi: 10.48550/arxiv.1312.6490 · pith_short_12: OUPUY3EBVDEK · pith_short_16: OUPUY3EBVDEK5CRP · pith_short_8: OUPUY3EB

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/OUPUY3EBVDEK5CRP2OUG5UWMPP \
  | 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: 751f4c6c81a8c8ae8a2fd3a86ed2cc7bcfee769b9d1553b9bb58c70fa1c8d10c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03ac9ffdcdda2ecd1fffc6595c749f45abf7a3dd3de99596a23660eabdd75c80",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-12-23T09:20:48Z",
    "title_canon_sha256": "2e0a22f59d17d965b7fd120b38e2fb522359daa8c7f2e20a7884a4a7f242e0ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.6490",
    "kind": "arxiv",
    "version": 3
  }
}