Pith Number

pith:RPMIVCXF

pith:2010:RPMIVCXFGNERFWOFSDJWR6MZJI

not attested not anchored not stored refs pending

Entropy Solution Theory for Fractional Degenerate Convection-Diffusion Equations

Espen R. Jakobsen, Simone Cifani

arxiv:1005.4938 v4 · 2010-05-26 · math.AP · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RPMIVCXFGNERFWOFSDJWR6MZJI}

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	2026-05-18T04:16:51.785184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bd88a8ae5334912d9c590d368f9994a1ecf9e636d8bbc0e7b12912524d863c0

Aliases

arxiv: 1005.4938 · arxiv_version: 1005.4938v4 · doi: 10.48550/arxiv.1005.4938 · pith_short_12: RPMIVCXFGNER · pith_short_16: RPMIVCXFGNERFWOF · pith_short_8: RPMIVCXF

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/RPMIVCXFGNERFWOFSDJWR6MZJI \
  | 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: 8bd88a8ae5334912d9c590d368f9994a1ecf9e636d8bbc0e7b12912524d863c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3485d185d6f1af573fb72c4e6633b5c5ad96ee00b1b7e9b6fcc19ddab707d766",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-05-26T20:09:09Z",
    "title_canon_sha256": "826c2148b53956b9fe477d9d4426edf559d66239b7259dece43b7f223d9ccd77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4938",
    "kind": "arxiv",
    "version": 4
  }
}