Pith Number

pith:OVGQDCDM

pith:2012:OVGQDCDMERNLBGPW6EC6TCTVGM

not attested not anchored not stored refs pending

On the cost of null-control of an artificial advection-diffusion problem

Pierre Cornilleau, Sergio Guerrero

arxiv:1206.5209 v2 · 2012-06-22 · 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{OVGQDCDMERNLBGPW6EC6TCTVGM}

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	2026-05-18T01:17:53.619878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

754d01886c245ab099f6f105e98a75330faf0b928136c1d56a2492fce5ca9b6f

Aliases

arxiv: 1206.5209 · arxiv_version: 1206.5209v2 · doi: 10.48550/arxiv.1206.5209 · pith_short_12: OVGQDCDMERNL · pith_short_16: OVGQDCDMERNLBGPW · pith_short_8: OVGQDCDM

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/OVGQDCDMERNLBGPW6EC6TCTVGM \
  | 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: 754d01886c245ab099f6f105e98a75330faf0b928136c1d56a2492fce5ca9b6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6c46b82a2750c06335e132cb9dbd3bbcb3ff25b95411b46dd86b6b84e9effba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-06-22T17:17:14Z",
    "title_canon_sha256": "66fde99b9c541b287081746d56f2ecab2dbf700d430ad2c2b8f9af94e6398f70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5209",
    "kind": "arxiv",
    "version": 2
  }
}