Pith Number

pith:TMGNR4TJ

pith:2015:TMGNR4TJE5XOPXFAKTB4O4S7LT

not attested not anchored not stored refs pending

The Variable Coefficient Thin Obstacle Problem: Carleman Inequalities

Angkana R\"uland, Herbert Koch, Wenhui Shi

arxiv:1501.04496 v2 · 2015-01-19 · 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{TMGNR4TJE5XOPXFAKTB4O4S7LT}

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	2026-05-18T02:00:02.310816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b0cd8f269276ee7dca054c3c7725f5cf16cfe3b6da437a97772812215f53b8c

Aliases

arxiv: 1501.04496 · arxiv_version: 1501.04496v2 · doi: 10.48550/arxiv.1501.04496 · pith_short_12: TMGNR4TJE5XO · pith_short_16: TMGNR4TJE5XOPXFA · pith_short_8: TMGNR4TJ

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/TMGNR4TJE5XOPXFAKTB4O4S7LT \
  | 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: 9b0cd8f269276ee7dca054c3c7725f5cf16cfe3b6da437a97772812215f53b8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd5d76df2e82e5806a763e64340df2bb60189443dad8631e8545340903d5c439",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-01-19T14:04:55Z",
    "title_canon_sha256": "ee15712acfd80368eaf10fdda952fe57b3867cb0d6a9ead898ca3576fc82cc3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04496",
    "kind": "arxiv",
    "version": 2
  }
}