Pith Number

pith:PEPD62J7

pith:2014:PEPD62J7NCS4LPU6PADCTHNPWS

not attested not anchored not stored refs pending

On Second Order Elliptic and Parabolic Equations of Mixed Type

Gong Chen, Mikhail Safonov

arxiv:1401.0351 v1 · 2014-01-02 · 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{PEPD62J7NCS4LPU6PADCTHNPWS}

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	2026-05-18T03:03:23.432796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

791e3f693f68a5c5be9e7806299dafb486bca5b9f30e311ce181a9fd9e07a83c

Aliases

arxiv: 1401.0351 · arxiv_version: 1401.0351v1 · doi: 10.48550/arxiv.1401.0351 · pith_short_12: PEPD62J7NCS4 · pith_short_16: PEPD62J7NCS4LPU6 · pith_short_8: PEPD62J7

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/PEPD62J7NCS4LPU6PADCTHNPWS \
  | 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: 791e3f693f68a5c5be9e7806299dafb486bca5b9f30e311ce181a9fd9e07a83c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6578258fdd64d259401b6485e28a9198f66dda784ee261afd3a68066b112397a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-01-02T01:03:16Z",
    "title_canon_sha256": "760d359101c9e3b2f39c9d2a29db7804dc9e95f2debc2f7944427c6548b569bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0351",
    "kind": "arxiv",
    "version": 1
  }
}