Pith Number

pith:H6UKI2LH

pith:2014:H6UKI2LHLUUUELX6RQGYR7U77R

not attested not anchored not stored refs pending

Solving the Heat Equation using Nonstandard Analysis

Tristram de Piro

arxiv:1404.3778 v1 · 2014-04-14 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H6UKI2LHLUUUELX6RQGYR7U77R}

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	2026-05-18T02:54:13.633597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fa8a469675d29422efe8c0d88fe9ffc62e514281b1a7613b364764563c5f946

Aliases

arxiv: 1404.3778 · arxiv_version: 1404.3778v1 · doi: 10.48550/arxiv.1404.3778 · pith_short_12: H6UKI2LHLUUU · pith_short_16: H6UKI2LHLUUUELX6 · pith_short_8: H6UKI2LH

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/H6UKI2LHLUUUELX6RQGYR7U77R \
  | 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: 3fa8a469675d29422efe8c0d88fe9ffc62e514281b1a7613b364764563c5f946

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f67ff1384a60df70526804e370fa931843ae9afe7737fdf2364181424868e53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-04-14T23:27:01Z",
    "title_canon_sha256": "8fe11bc3b02a093c5b0ab83663d5576f8a9c09bad62fb3c24add6ab354c2e4dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3778",
    "kind": "arxiv",
    "version": 1
  }
}