Pith Number

pith:WUB34WC4

pith:2026:WUB34WC45IIBHL3YQKM4G762OU

not attested not anchored not stored refs pending

A Pedagogical Introduction to the Unified Transform Method: The Heat Equation on a Finite Interval

Athanasios Paraskevopoulos

arxiv:2606.26148 v1 · 2026-06-22 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUB34WC45IIBHL3YQKM4G762OU}

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	2026-06-26T00:15:27.276759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b503be585cea1013af788299c37fda7509414724f1fe092e7934559ecdfb0ea7

Aliases

arxiv: 2606.26148 · arxiv_version: 2606.26148v1 · doi: 10.48550/arxiv.2606.26148 · pith_short_12: WUB34WC45IIB · pith_short_16: WUB34WC45IIBHL3Y · pith_short_8: WUB34WC4

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/WUB34WC45IIBHL3YQKM4G762OU \
  | 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: b503be585cea1013af788299c37fda7509414724f1fe092e7934559ecdfb0ea7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac469858bc56fc2c7f1d615b7ed1bf1a189767ab86eee2c66b671960c0ccc3f4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2026-06-22T21:36:21Z",
    "title_canon_sha256": "e84ca7c46a162a6fbda52c61cbb0a20e3d57750c1e610a1be7a611f08c56b520"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.26148",
    "kind": "arxiv",
    "version": 1
  }
}