Pith Number

pith:EHM6XLOW

pith:2019:EHM6XLOWWJI5A62IOXMPG2S2FJ

not attested not anchored not stored refs pending

Analytic Solutions of the Heat Equation

Eva Kallitsi, George Smyrlis, Vassilis G. Papanicolaou

arxiv:1906.02233 v2 · 2019-06-05 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHM6XLOWWJI5A62IOXMPG2S2FJ}

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	2026-05-17T23:43:49.017082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21d9ebadd6b251d07b4875d8f36a5a2a53e8d60c491112cbad9a132ebf597d06

Aliases

arxiv: 1906.02233 · arxiv_version: 1906.02233v2 · doi: 10.48550/arxiv.1906.02233 · pith_short_12: EHM6XLOWWJI5 · pith_short_16: EHM6XLOWWJI5A62I · pith_short_8: EHM6XLOW

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/EHM6XLOWWJI5A62IOXMPG2S2FJ \
  | 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: 21d9ebadd6b251d07b4875d8f36a5a2a53e8d60c491112cbad9a132ebf597d06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca7fca5ad7da12b8fac7b86556849fec68ffd5e99a50f7afb3d1f94014c6e6db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2019-06-05T18:18:07Z",
    "title_canon_sha256": "902c84b883c6f95c64e5a258569988b1d2ffd38c948c850e2c05b0ac3d54b896"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02233",
    "kind": "arxiv",
    "version": 2
  }
}