Pith Number

pith:5ZQIKTLV

pith:2019:5ZQIKTLVW2YHRBOCF5PS7KUZGD

not attested not anchored not stored refs pending

Convergent numerical methods for parabolic equations with reversed time via a new Carleman estimate

Anatoly G. Yagola, Michael V. Klibanov

arxiv:1903.01238 v1 · 2019-02-18 · math.AP · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5ZQIKTLVW2YHRBOCF5PS7KUZGD}

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	2026-06-04T20:13:58.055771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee60854d75b6b07885c22f5f2faa9930d3c1b5c905b243c8e578b460fad1a4ea

Aliases

arxiv: 1903.01238 · arxiv_version: 1903.01238v1 · doi: 10.48550/arxiv.1903.01238 · pith_short_12: 5ZQIKTLVW2YH · pith_short_16: 5ZQIKTLVW2YHRBOC · pith_short_8: 5ZQIKTLV

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/5ZQIKTLVW2YHRBOCF5PS7KUZGD \
  | 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: ee60854d75b6b07885c22f5f2faa9930d3c1b5c905b243c8e578b460fad1a4ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f10a3a1bd7a73176ba21e06255dc3b1583f31b2619bed8859cd2ec16c62a26a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-02-18T21:06:46Z",
    "title_canon_sha256": "4f563e6a8ef4ef48037646b79077d78efae1362c33010c58acd8004c192f2bfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01238",
    "kind": "arxiv",
    "version": 1
  }
}