Pith Number

pith:6E7Q2QYA

pith:2014:6E7Q2QYAK7S73J6FAZEYNDVS67

not attested not anchored not stored refs pending

On the microscopic spacetime convexity principle for fully nonlinear parabolic equations I: Spacetime convex solutions

Chuanqiang Chen

arxiv:1403.5077 v4 · 2014-03-20 · 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{6E7Q2QYAK7S73J6FAZEYNDVS67}

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	2026-05-18T02:51:14.739444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f13f0d430057e5fda7c50649868eb2f7d93f059341cb880e8d24c61083f95660

Aliases

arxiv: 1403.5077 · arxiv_version: 1403.5077v4 · doi: 10.48550/arxiv.1403.5077 · pith_short_12: 6E7Q2QYAK7S7 · pith_short_16: 6E7Q2QYAK7S73J6F · pith_short_8: 6E7Q2QYA

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/6E7Q2QYAK7S73J6FAZEYNDVS67 \
  | 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: f13f0d430057e5fda7c50649868eb2f7d93f059341cb880e8d24c61083f95660

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd84d21ab66355c39aeab81b897ed916782f9f8790bb135fcf69c16dcc24f82b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-03-20T09:19:37Z",
    "title_canon_sha256": "7cce5a62ace43370f0ff0d72ee06eb0e913d1675051da313e83ce845c79e7f04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.5077",
    "kind": "arxiv",
    "version": 4
  }
}