Pith Number

pith:BUYDN5X2

pith:2013:BUYDN5X2IPCO763UI7QVSTKHQT

not attested not anchored not stored refs pending

Heat equation and convolution inequalities

Giuseppe Toscani

arxiv:1308.6662 v2 · 2013-08-30 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUYDN5X2IPCO763UI7QVSTKHQT}

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	2026-05-18T03:12:21.826222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d3036f6fa43c4effb7447e1594d4784e2fe1d14349413c43364bc07675c6e39

Aliases

arxiv: 1308.6662 · arxiv_version: 1308.6662v2 · doi: 10.48550/arxiv.1308.6662 · pith_short_12: BUYDN5X2IPCO · pith_short_16: BUYDN5X2IPCO763U · pith_short_8: BUYDN5X2

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/BUYDN5X2IPCO763UI7QVSTKHQT \
  | 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: 0d3036f6fa43c4effb7447e1594d4784e2fe1d14349413c43364bc07675c6e39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f64ed5e390df823786f91bf6709541893f1bf75a6dcde883a0dfdacf3641c041",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-08-30T07:12:10Z",
    "title_canon_sha256": "ee8d7e7a4ca4299e9ece50254534500b3325e8d57e0c33bc02d763b00a65dbd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6662",
    "kind": "arxiv",
    "version": 2
  }
}