Pith Number

pith:FRJCEY6J

pith:2019:FRJCEY6JDPKEECJ2DZSSM52ERO

not attested not anchored not stored refs pending

Boundary layer separation and local behavior for the Steady Prandtl equation

Weiming Shen, Yue Wang, Zhifei Zhang

arxiv:1904.08055 v1 · 2019-04-17 · 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{FRJCEY6JDPKEECJ2DZSSM52ERO}

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	2026-05-17T23:48:18.906680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c522263c91bd442093a1e652677448b93cb1f9544e0dba62a0981f30f9fe316

Aliases

arxiv: 1904.08055 · arxiv_version: 1904.08055v1 · doi: 10.48550/arxiv.1904.08055 · pith_short_12: FRJCEY6JDPKE · pith_short_16: FRJCEY6JDPKEECJ2 · pith_short_8: FRJCEY6J

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/FRJCEY6JDPKEECJ2DZSSM52ERO \
  | 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: 2c522263c91bd442093a1e652677448b93cb1f9544e0dba62a0981f30f9fe316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9463f218988e6833d525fd9efdb01b086d3d0559ed56b6e40434fadbb0886005",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-04-17T02:32:44Z",
    "title_canon_sha256": "be7bca855f32926fd6bff8476aa0e57896071809d10afbc77d1a3e153d34398f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08055",
    "kind": "arxiv",
    "version": 1
  }
}