Pith Number

pith:X36ZUGV5

pith:2013:X36ZUGV5XIMGVHZJSL6D6JMHS4

not attested not anchored not stored refs pending

Greatest solutions and differential inequalities: a journey in two directions

Rodrigo L\'opez Pouso

arxiv:1304.3576 v1 · 2013-04-12 · 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{X36ZUGV5XIMGVHZJSL6D6JMHS4}

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	2026-05-18T03:28:07.163955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

befd9a1abdba186a9f2992fc3f2587971da85777a4cd5631491f54c9b7d59df9

Aliases

arxiv: 1304.3576 · arxiv_version: 1304.3576v1 · doi: 10.48550/arxiv.1304.3576 · pith_short_12: X36ZUGV5XIMG · pith_short_16: X36ZUGV5XIMGVHZJ · pith_short_8: X36ZUGV5

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/X36ZUGV5XIMGVHZJSL6D6JMHS4 \
  | 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: befd9a1abdba186a9f2992fc3f2587971da85777a4cd5631491f54c9b7d59df9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b86c461d6809586ece6543b7f0eac1dad69e56be2422e7c36e1a476240c068d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2013-04-12T09:04:19Z",
    "title_canon_sha256": "15d155aa022c71b2e8e0bb73a6577a7fc074e5da0063ab0663b6625e3ff2a4a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3576",
    "kind": "arxiv",
    "version": 1
  }
}