Pith Number

pith:XXUVQ73Z

pith:2018:XXUVQ73ZJFDKHE4HLGDSJX4NTU

not attested not anchored not stored refs pending

Exhaustion approximation for the control problem of the heat or Schr\"odinger semigroup on unbounded domains

Albrecht Seelmann, Ivan Veselic

arxiv:1810.12167 v2 · 2018-10-29 · math.OC · 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{XXUVQ73ZJFDKHE4HLGDSJX4NTU}

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	2026-05-18T00:01:37.382867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bde9587f794946a39387598724df8d9d23ca45690691cf190c212267acf7a384

Aliases

arxiv: 1810.12167 · arxiv_version: 1810.12167v2 · doi: 10.48550/arxiv.1810.12167 · pith_short_12: XXUVQ73ZJFDK · pith_short_16: XXUVQ73ZJFDKHE4H · pith_short_8: XXUVQ73Z

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/XXUVQ73ZJFDKHE4HLGDSJX4NTU \
  | 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: bde9587f794946a39387598724df8d9d23ca45690691cf190c212267acf7a384

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c93986913b271c761882a44625c8db9f4fd28b772599fca5faaeddd352587e80",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-10-29T14:56:02Z",
    "title_canon_sha256": "738ebbf8a8dbfafa85c8b63d363658b3b2520a5654618a8c6d80138a78398b01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12167",
    "kind": "arxiv",
    "version": 2
  }
}