Pith Number

pith:SULRH3SN

pith:2019:SULRH3SNF6GLM2BSZNSRSK5LXX

not attested not anchored not stored refs pending

Two species nonlocal diffusion systems with free boundaries

Meng Zhao, Mingxin Wang, Yihong Du

arxiv:1907.04542 v1 · 2019-07-10 · 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{SULRH3SNF6GLM2BSZNSRSK5LXX}

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	2026-05-17T23:40:59.933597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

951713ee4d2f8cb66832cb65192babbdd671d883b14f07f75a576b81f58a435a

Aliases

arxiv: 1907.04542 · arxiv_version: 1907.04542v1 · doi: 10.48550/arxiv.1907.04542 · pith_short_12: SULRH3SNF6GL · pith_short_16: SULRH3SNF6GLM2BS · pith_short_8: SULRH3SN

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/SULRH3SNF6GLM2BSZNSRSK5LXX \
  | 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: 951713ee4d2f8cb66832cb65192babbdd671d883b14f07f75a576b81f58a435a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86edd394a15242f97a9228245140fe5e08ae69c67944d69bd2bcded6564d0f4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-07-10T07:22:15Z",
    "title_canon_sha256": "d4605ead73bab27656a8191d00cf27879c41e94ec0c5269cc03e531312a728ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04542",
    "kind": "arxiv",
    "version": 1
  }
}