Pith Number

pith:DPWXPFAA

pith:2015:DPWXPFAAMJCH47U33P6LVPPNE5

not attested not anchored not stored refs pending

Almost global existence for the Prandtl boundary layer equations

Mihaela Ignatova, Vlad Vicol

arxiv:1502.04319 v2 · 2015-02-15 · 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{DPWXPFAAMJCH47U33P6LVPPNE5}

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	2026-05-18T01:18:47.698551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bed77940062447e7e9bdbfcbabded2759637691749c5eb8c979240de8e3255c

Aliases

arxiv: 1502.04319 · arxiv_version: 1502.04319v2 · doi: 10.48550/arxiv.1502.04319 · pith_short_12: DPWXPFAAMJCH · pith_short_16: DPWXPFAAMJCH47U3 · pith_short_8: DPWXPFAA

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/DPWXPFAAMJCH47U33P6LVPPNE5 \
  | 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: 1bed77940062447e7e9bdbfcbabded2759637691749c5eb8c979240de8e3255c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df84c79eaecf208f0a68cf2fc4503df077ca652408668e7dc9d146ca42e41b07",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-02-15T15:03:33Z",
    "title_canon_sha256": "c3c2e1cb1d54ec307c01906a1aafc9f989aa654a91c762890035f7f826f4a249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04319",
    "kind": "arxiv",
    "version": 2
  }
}