Pith Number

pith:2VIZOIPH

pith:2026:2VIZOIPHWRQ5XY4WBI2VIEOKTU

not attested not anchored not stored refs pending

PDE Identification Using Noise Adaptive Differentiation in Strong Form (S-IDENT)

Roy Y. He, Sung Ha Kang

arxiv:2606.31776 v1 · 2026-06-30 · 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{2VIZOIPHWRQ5XY4WBI2VIEOKTU}

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	2026-07-01T01:18:14.412586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5519721e7b461dbe3960a355411ca9d2a3678652620a62961cb0396dbae4a7a

Aliases

arxiv: 2606.31776 · arxiv_version: 2606.31776v1 · doi: 10.48550/arxiv.2606.31776 · pith_short_12: 2VIZOIPHWRQ5 · pith_short_16: 2VIZOIPHWRQ5XY4W · pith_short_8: 2VIZOIPH

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/2VIZOIPHWRQ5XY4WBI2VIEOKTU \
  | 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: d5519721e7b461dbe3960a355411ca9d2a3678652620a62961cb0396dbae4a7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07c88d6a8cd6edbc783503f31f6d4822b6975771bde73fee8ed4480da3d2057f",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-30T14:58:13Z",
    "title_canon_sha256": "7962f00dacd16fc11bea4f37c9d793b6c4f1c94c44229fe58b51c1d11895bf27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31776",
    "kind": "arxiv",
    "version": 1
  }
}