Pith Number

pith:VVQNJ4AX

pith:2004:VVQNJ4AXTWJTTVUUOFQVR4DKI2

not attested not anchored not stored refs pending

A Transform Method for Evolution PDEs on a Finite Interval

A.S. Fokas, B. Pelloni

arxiv:math/0412027 v2 · 2004-12-01 · math.AP · 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{VVQNJ4AXTWJTTVUUOFQVR4DKI2}

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	2026-05-18T04:26:44.079514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad60d4f0179d9339d694716158f06a46b37ffd63058c87bd7e6c5227e9d1fae3

Aliases

arxiv: math/0412027 · arxiv_version: math/0412027v2 · doi: 10.48550/arxiv.math/0412027 · pith_short_12: VVQNJ4AXTWJT · pith_short_16: VVQNJ4AXTWJTTVUU · pith_short_8: VVQNJ4AX

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/VVQNJ4AXTWJTTVUUOFQVR4DKI2 \
  | 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: ad60d4f0179d9339d694716158f06a46b37ffd63058c87bd7e6c5227e9d1fae3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b75efa30a5bf38017e148259224597ee47f31dd542a7a8beedb6c5d9cdb9ea2",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2004-12-01T16:53:59Z",
    "title_canon_sha256": "25330788fef592caae31c383e99ae4ccd7d97957f1e8f07ec0c8590e238d80b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0412027",
    "kind": "arxiv",
    "version": 2
  }
}