Pith Number

pith:GNPF6ZPI

pith:2014:GNPF6ZPIBU3COWJ6WM2J5RJFCS

not attested not anchored not stored refs pending

A uniqueness result for an inverse problem of the steady state convection-diffusion equation

Valter Pohjola

arxiv:1405.6864 v1 · 2014-05-27 · 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{GNPF6ZPIBU3COWJ6WM2J5RJFCS}

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	2026-05-18T02:51:00.178255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

335e5f65e80d3627593eb3349ec525148f046d4aab46e829d0be4a917371306d

Aliases

arxiv: 1405.6864 · arxiv_version: 1405.6864v1 · doi: 10.48550/arxiv.1405.6864 · pith_short_12: GNPF6ZPIBU3C · pith_short_16: GNPF6ZPIBU3COWJ6 · pith_short_8: GNPF6ZPI

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/GNPF6ZPIBU3COWJ6WM2J5RJFCS \
  | 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: 335e5f65e80d3627593eb3349ec525148f046d4aab46e829d0be4a917371306d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aae8c7a30b107c938dcc4c6c9088e1b41deec53bcbf4a61b33abf126115b9e58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-05-27T10:46:01Z",
    "title_canon_sha256": "09fad566bf0e1118c83e2eda001c184348b5c61afacbf60f9d194e426c01c69a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6864",
    "kind": "arxiv",
    "version": 1
  }
}