Pith Number

pith:T4YDZWK2

pith:2014:T4YDZWK2KXX2MVJ6S7LXJIAYXT

not attested not anchored not stored refs pending

An ODE for boundary layer separation on a sphere and a hyperbolic space

Chi Hin Chan, Magdalena Czubak, Tsuyoshi Yoneda

arxiv:1402.2038 v1 · 2014-02-10 · 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{T4YDZWK2KXX2MVJ6S7LXJIAYXT}

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	2026-05-18T02:59:32.554388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f303cd95a55efa6553e97d774a018bcf768b9982afe6474904e9cac957e05d7

Aliases

arxiv: 1402.2038 · arxiv_version: 1402.2038v1 · doi: 10.48550/arxiv.1402.2038 · pith_short_12: T4YDZWK2KXX2 · pith_short_16: T4YDZWK2KXX2MVJ6 · pith_short_8: T4YDZWK2

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/T4YDZWK2KXX2MVJ6S7LXJIAYXT \
  | 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: 9f303cd95a55efa6553e97d774a018bcf768b9982afe6474904e9cac957e05d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2acb37b5f433e079017f33e804828a5fa80072e974948b1c626854301ddf22fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-02-10T05:10:06Z",
    "title_canon_sha256": "dc26591e0336fd33f2e85379040ab57c9763a8891aefacbc3dcbefddff3465dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2038",
    "kind": "arxiv",
    "version": 1
  }
}