Pith Number

pith:NTJ544MV

pith:2017:NTJ544MVLUPFXR5BCM7RKBEFFM

not attested not anchored not stored refs pending

Optimal control of a non-smooth semilinear elliptic equation

Christian Clason, Christian Meyer, Constantin Christof, Stephan Walther

arxiv:1705.00939 v3 · 2017-05-02 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTJ544MVLUPFXR5BCM7RKBEFFM}

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	2026-05-18T00:25:05.763276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cd3de71955d1e5bc7a1133f1504852b3b610545b6522080d6524dbe1545be3d

Aliases

arxiv: 1705.00939 · arxiv_version: 1705.00939v3 · doi: 10.48550/arxiv.1705.00939 · pith_short_12: NTJ544MVLUPF · pith_short_16: NTJ544MVLUPFXR5B · pith_short_8: NTJ544MV

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/NTJ544MVLUPFXR5BCM7RKBEFFM \
  | 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: 6cd3de71955d1e5bc7a1133f1504852b3b610545b6522080d6524dbe1545be3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b838ecbcb5304220870f012ae2de1363a346400ea6e9f8716fdfe0568c8b137",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-05-02T12:30:16Z",
    "title_canon_sha256": "6caff3bc1597759306ed81600651428e179879ddc195ac33565466aa44654759"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00939",
    "kind": "arxiv",
    "version": 3
  }
}