Pith Number

pith:WDEN5YD6

pith:2026:WDEN5YD6FU3TV6YFC4MMAVAUOC

not attested not anchored not stored refs pending

Low-order CR--RT equilibrated-flux certification for semilinear problems on anisotropic meshes

Hiroki Ishizaka

arxiv:2602.01636 v2 · 2026-02-02 · math.NA · cs.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{WDEN5YD6FU3TV6YFC4MMAVAUOC}

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	2026-06-12T01:08:22.093374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0c8dee07e2d373afb051718c0541470be632488e30b8c1f5699bb675fa8bf64

Aliases

arxiv: 2602.01636 · arxiv_version: 2602.01636v2 · doi: 10.48550/arxiv.2602.01636 · pith_short_12: WDEN5YD6FU3T · pith_short_16: WDEN5YD6FU3TV6YF · pith_short_8: WDEN5YD6

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/WDEN5YD6FU3TV6YFC4MMAVAUOC \
  | 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: b0c8dee07e2d373afb051718c0541470be632488e30b8c1f5699bb675fa8bf64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d40f3581d5abba1f11174d7aae37bb14aee225c79d21166f180ddab62a22cddd",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-02-02T04:51:24Z",
    "title_canon_sha256": "c07472dbc80cf73d93708a535db08bafeaf79eeff3bf4670e8fc1db0e7fb31e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.01636",
    "kind": "arxiv",
    "version": 2
  }
}