Pith Number

pith:4JFX2SA2

pith:2026:4JFX2SA2NITRUMIPYQGYZPIOUR

not attested not anchored not stored refs pending

Recovering the initial condition and physical coefficients in a nonlinear PDE model of cell invasion

Beiji Chen, Kui Ren

arxiv:2606.11554 v1 · 2026-06-10 · 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{4JFX2SA2NITRUMIPYQGYZPIOUR}

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	2026-06-11T01:09:55.730289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e24b7d481a6a271a310fc40d8cbd0ea44b60c58527101cc67d15584ec7368e2a

Aliases

arxiv: 2606.11554 · arxiv_version: 2606.11554v1 · doi: 10.48550/arxiv.2606.11554 · pith_short_12: 4JFX2SA2NITR · pith_short_16: 4JFX2SA2NITRUMIP · pith_short_8: 4JFX2SA2

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/4JFX2SA2NITRUMIPYQGYZPIOUR \
  | 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: e24b7d481a6a271a310fc40d8cbd0ea44b60c58527101cc67d15584ec7368e2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "290d26d7592f8101e5a021fa5679bece20921c78b1dc1bec3cb6d69f5899254a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2026-06-10T01:24:52Z",
    "title_canon_sha256": "1e5b8ccd600fdf986f9555dcb758b0d3795e68075faf58ae029b571cbb52d0b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11554",
    "kind": "arxiv",
    "version": 1
  }
}