Pith Number

pith:4J4KRUVM

pith:2013:4J4KRUVMBOUI2I7PXAN766INTB

not attested not anchored not stored refs pending

The Mean Value Theorem and Basic Properties of the Obstacle Problem for Divergence Form Elliptic Operators

Ivan Blank, Zheng Hao

arxiv:1302.2952 v5 · 2013-02-12 · 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{4J4KRUVMBOUI2I7PXAN766INTB}

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	2026-05-18T02:55:27.755910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e278a8d2ac0ba88d23efb81bff790d986673b010ed1fe8d785ac2bfa1cce0b16

Aliases

arxiv: 1302.2952 · arxiv_version: 1302.2952v5 · doi: 10.48550/arxiv.1302.2952 · pith_short_12: 4J4KRUVMBOUI · pith_short_16: 4J4KRUVMBOUI2I7P · pith_short_8: 4J4KRUVM

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/4J4KRUVMBOUI2I7PXAN766INTB \
  | 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: e278a8d2ac0ba88d23efb81bff790d986673b010ed1fe8d785ac2bfa1cce0b16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3454a817a111bf0e1095586eb1cb51ecbffb6bddc931aca50bc3a7d2b2f8edfb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-02-12T23:33:25Z",
    "title_canon_sha256": "400927db5fb8a866295ab989fb8a13a5c8c0c633c0b86cf96e6071391c8fe020"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2952",
    "kind": "arxiv",
    "version": 5
  }
}