Pith Number

pith:MSPKKOIV

pith:2018:MSPKKOIVOU6QL2LWPAC7N7AEOW

not attested not anchored not stored refs pending

The Obstacle Problem for Quasilinear Stochastic PDEs with Degenerate Operator

Jing Zhang, Xue Yang

arxiv:1804.09050 v1 · 2018-04-23 · math.PR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MSPKKOIVOU6QL2LWPAC7N7AEOW}

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	2026-05-18T00:17:36.484659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

649ea53915753d05e9767805f6fc0475b3e0c75f925e99648e93512b86780aca

Aliases

arxiv: 1804.09050 · arxiv_version: 1804.09050v1 · doi: 10.48550/arxiv.1804.09050 · pith_short_12: MSPKKOIVOU6Q · pith_short_16: MSPKKOIVOU6QL2LW · pith_short_8: MSPKKOIV

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/MSPKKOIVOU6QL2LWPAC7N7AEOW \
  | 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: 649ea53915753d05e9767805f6fc0475b3e0c75f925e99648e93512b86780aca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e15cc18b9aeb7f25a18408606ccd52ad8cb36414fe52000060c805a9c8f37ab9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2018-04-23T14:37:12Z",
    "title_canon_sha256": "450cab66a75f10bac2ad1f961470bf9611006c8419a5ba91196d223f46c80baf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09050",
    "kind": "arxiv",
    "version": 1
  }
}