Pith Number

pith:CWSUNIYY

pith:2020:CWSUNIYYPOEEDFUVKN2GISFBSH

not attested not anchored not stored refs pending

A numerical study of an Heaviside function driven degenerate diffusion equation

Carlo Alberini, Raffaela Capitanelli, Stefano Finzi Vita

arxiv:2012.12164 v1 · 2020-12-22 · math.AP · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CWSUNIYYPOEEDFUVKN2GISFBSH}

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	2026-07-05T07:28:07.360111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15a546a3187b8841969553746448a191e11a4198fd71dc8f9314626e1611ef87

Aliases

arxiv: 2012.12164 · arxiv_version: 2012.12164v1 · doi: 10.48550/arxiv.2012.12164 · pith_short_12: CWSUNIYYPOEE · pith_short_16: CWSUNIYYPOEEDFUV · pith_short_8: CWSUNIYY

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/CWSUNIYYPOEEDFUVKN2GISFBSH \
  | 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: 15a546a3187b8841969553746448a191e11a4198fd71dc8f9314626e1611ef87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edebb01dba66bdafe29c90bfa003816f72f9883266674eb4a7480b6abb4b398a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2020-12-22T16:52:27Z",
    "title_canon_sha256": "90f85a72686bf01f03fd3e0b3b7de6d7f04f1825a0949ebee0c6fa9c1a470494"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.12164",
    "kind": "arxiv",
    "version": 1
  }
}