Pith Number

pith:WBPR26CP

pith:2026:WBPR26CPBRZPFGNRH5E3OTHOEO

not attested not anchored not stored refs pending

A selection principle for 2D steady Euler flows via the vanishing viscosity limit

Changfeng Gui, Chunjing Xie, Huan Xu

arxiv:2601.08647 v2 · 2026-01-13 · 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{WBPR26CPBRZPFGNRH5E3OTHOEO}

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	2026-05-21T01:05:14.741586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b05f1d784f0c72f299b13f49b74cee2386fad83232d98e3f360931fc6cd9307f

Aliases

arxiv: 2601.08647 · arxiv_version: 2601.08647v2 · doi: 10.48550/arxiv.2601.08647 · pith_short_12: WBPR26CPBRZP · pith_short_16: WBPR26CPBRZPFGNR · pith_short_8: WBPR26CP

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/WBPR26CPBRZPFGNRH5E3OTHOEO \
  | 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: b05f1d784f0c72f299b13f49b74cee2386fad83232d98e3f360931fc6cd9307f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abac116dc808d6406652f4b39ad5ab15bb2a3be19079258b79f6454672db9b5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2026-01-13T15:24:25Z",
    "title_canon_sha256": "04cdaa11df35e9049aab4f8cde83a6a834f2bc9fece23c778b18e2095ee5c3fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.08647",
    "kind": "arxiv",
    "version": 2
  }
}