Pith Number

pith:G6NZ7QXW

pith:2011:G6NZ7QXW5DPF2BGDXSOOLC3ST4

not attested not anchored not stored refs pending

An error estimate for the finite difference approximation to degenerate convection -diffusion equations

K. H. Karlsen, N. H. Risebro, U. Koley

arxiv:1102.0493 v2 · 2011-02-02 · 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{G6NZ7QXW5DPF2BGDXSOOLC3ST4}

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	2026-05-18T03:45:21.768607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

379b9fc2f6e8de5d04c3bc9ce58b729f20be921269ea48fc00c0792e8a771ff1

Aliases

arxiv: 1102.0493 · arxiv_version: 1102.0493v2 · doi: 10.48550/arxiv.1102.0493 · pith_short_12: G6NZ7QXW5DPF · pith_short_16: G6NZ7QXW5DPF2BGD · pith_short_8: G6NZ7QXW

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/G6NZ7QXW5DPF2BGDXSOOLC3ST4 \
  | 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: 379b9fc2f6e8de5d04c3bc9ce58b729f20be921269ea48fc00c0792e8a771ff1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b39ba5e913e8830b340d9c55b3ec03ef2d87b2e82f806f138a3995a0deb65c9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-02-02T17:08:24Z",
    "title_canon_sha256": "58dbdd737bcd22fb90f9a6337c84e994fe23c66d0ee29c6a0d836ddf0882e1bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0493",
    "kind": "arxiv",
    "version": 2
  }
}