Pith Number

pith:5TMWMSCY

pith:2022:5TMWMSCYXV4JFSE7XRPDAWOUEO

not attested not anchored not stored refs pending

Regularisation and separation for evolving surface Cahn-Hilliard equations

Andrea Poiatti, Charles M. Elliott, Diogo Caetano, Maurizio Grasselli

arxiv:2205.09822 v2 · 2022-05-19 · 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{5TMWMSCYXV4JFSE7XRPDAWOUEO}

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	2026-07-05T05:38:42.609655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecd9664858bd7892c89fbc5e3059d423b5b59e0aa093d94010e73b31cf5a95d1

Aliases

arxiv: 2205.09822 · arxiv_version: 2205.09822v2 · doi: 10.48550/arxiv.2205.09822 · pith_short_12: 5TMWMSCYXV4J · pith_short_16: 5TMWMSCYXV4JFSE7 · pith_short_8: 5TMWMSCY

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/5TMWMSCYXV4JFSE7XRPDAWOUEO \
  | 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: ecd9664858bd7892c89fbc5e3059d423b5b59e0aa093d94010e73b31cf5a95d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acdd6b9385183d9e94cdde57ba7e5d4456c59fb40801d0f78d9ea49825bd4d60",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2022-05-19T19:50:03Z",
    "title_canon_sha256": "fa24c4a6064f65f0261deb3ee69b48d5db6492f8f340c8c80495b6e696a69e01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.09822",
    "kind": "arxiv",
    "version": 2
  }
}