Pith Number

pith:MTGOCFEM

pith:2016:MTGOCFEMONNZ55ZY2ROEJ5NPHG

not attested not anchored not stored refs pending

The Variable Coefficient Thin Obstacle Problem: Higher Regularity

Angkana R\"uland, Herbert Koch, Wenhui Shi

arxiv:1605.02002 v1 · 2016-05-06 · 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{MTGOCFEMONNZ55ZY2ROEJ5NPHG}

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	2026-05-18T01:15:30.661295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64cce1148c735b9ef738d45c44f5af39933ee053aa392bcc4556e8e99d2ae7b7

Aliases

arxiv: 1605.02002 · arxiv_version: 1605.02002v1 · doi: 10.48550/arxiv.1605.02002 · pith_short_12: MTGOCFEMONNZ · pith_short_16: MTGOCFEMONNZ55ZY · pith_short_8: MTGOCFEM

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/MTGOCFEMONNZ55ZY2ROEJ5NPHG \
  | 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: 64cce1148c735b9ef738d45c44f5af39933ee053aa392bcc4556e8e99d2ae7b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3313631d7e8ad45cca3bf56817f0d25f817c46147d4fee467c9c3f094fb4bc53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-05-06T16:43:14Z",
    "title_canon_sha256": "961c07cd07614fc5ba6e32c09b07ee880478a20913287a418cabc817e2482333"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02002",
    "kind": "arxiv",
    "version": 1
  }
}