Pith Number

pith:KUNXN6Y6

pith:2015:KUNXN6Y6QI5PMLU4B3IVURUXT6

not attested not anchored not stored refs pending

A universal regularization method for ill-posed Cauchy problems for quasilinear partial differential equations

Michael V. Klibanov

arxiv:1502.05606 v1 · 2015-02-17 · 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{KUNXN6Y6QI5PMLU4B3IVURUXT6}

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	2026-05-18T02:26:46.121366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

551b76fb1e823af62e9c0ed15a46979fb24eb6a2c990d04b4db400e3e435be2a

Aliases

arxiv: 1502.05606 · arxiv_version: 1502.05606v1 · doi: 10.48550/arxiv.1502.05606 · pith_short_12: KUNXN6Y6QI5P · pith_short_16: KUNXN6Y6QI5PMLU4 · pith_short_8: KUNXN6Y6

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/KUNXN6Y6QI5PMLU4B3IVURUXT6 \
  | 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: 551b76fb1e823af62e9c0ed15a46979fb24eb6a2c990d04b4db400e3e435be2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6afa37b1908ca115995ea69fc3b39cdb5ac2b492169fe9745124172b00c5a17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-02-17T01:22:12Z",
    "title_canon_sha256": "7de5fd35767aa6e3b93eea99dca6cd72801c73f87e448ea2a536b3d624b21901"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05606",
    "kind": "arxiv",
    "version": 1
  }
}