Pith Number

pith:PINMQFWU

pith:2018:PINMQFWUMK2FSH2WRUDEMKFJYG

not attested not anchored not stored refs pending

Compactly supported solution of the time-fractional porous medium equation on the half-line

{\L}ukasz P{\l}ociniczak, Mateusz \'Swita{\l}a

arxiv:1803.03016 v2 · 2018-03-08 · 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{PINMQFWUMK2FSH2WRUDEMKFJYG}

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	2026-05-18T00:21:40.142230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a1ac816d462b4591f568d064628a9c1b1d64a0edc8f302b56cb1f1d2a724409

Aliases

arxiv: 1803.03016 · arxiv_version: 1803.03016v2 · doi: 10.48550/arxiv.1803.03016 · pith_short_12: PINMQFWUMK2F · pith_short_16: PINMQFWUMK2FSH2W · pith_short_8: PINMQFWU

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/PINMQFWUMK2FSH2WRUDEMKFJYG \
  | 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: 7a1ac816d462b4591f568d064628a9c1b1d64a0edc8f302b56cb1f1d2a724409

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82dbd55c52e8d53eca0df6ccf4577639c557abd3ed73702cf722c985a40906ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-03-08T09:31:31Z",
    "title_canon_sha256": "3e61f34295420d7d49c19a8a8bd0d9af9c93e93f15e8683db07d3074d26c45a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.03016",
    "kind": "arxiv",
    "version": 2
  }
}