Pith Number

pith:VX2HRGKW

pith:2015:VX2HRGKWEQG7JELQ34YO2WDMI2

not attested not anchored not stored refs pending

Some remarks on a viscous regularization of the nonlinear diffusion equation

Giuseppe Tomassetti

arxiv:1505.07993 v1 · 2015-05-29 · math-ph · math.AP · 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{VX2HRGKWEQG7JELQ34YO2WDMI2}

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	2026-05-18T02:00:00.072612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adf4789956240df49170df30ed586c4680b6b60e852a4a91ef8bd142256395ee

Aliases

arxiv: 1505.07993 · arxiv_version: 1505.07993v1 · doi: 10.48550/arxiv.1505.07993 · pith_short_12: VX2HRGKWEQG7 · pith_short_16: VX2HRGKWEQG7JELQ · pith_short_8: VX2HRGKW

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/VX2HRGKWEQG7JELQ34YO2WDMI2 \
  | 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: adf4789956240df49170df30ed586c4680b6b60e852a4a91ef8bd142256395ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c605ea0ee961511c36a1ce46acc7d65685dbf6bddf01570c11900dc4c78a2a8e",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-05-29T11:29:17Z",
    "title_canon_sha256": "29dd7524307c9c7a232788d20255b31248e75287fd04d901f39e901d4b95f65f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07993",
    "kind": "arxiv",
    "version": 1
  }
}