Pith Number

pith:BBQ3H4UX

pith:2014:BBQ3H4UXT6ND7427EUQTQINIVD

not attested not anchored not stored refs pending

All Well--Posed Problems have Uniformly Stable and Convergent Discretizations

Robert Schaback

arxiv:1403.3600 v1 · 2014-03-14 · 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{BBQ3H4UXT6ND7427EUQTQINIVD}

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	2026-05-18T02:56:19.992511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0861b3f2979f9a3ff35f25213821a8a8f8699f2dfa8e8eaa81bc63253cc9629a

Aliases

arxiv: 1403.3600 · arxiv_version: 1403.3600v1 · doi: 10.48550/arxiv.1403.3600 · pith_short_12: BBQ3H4UXT6ND · pith_short_16: BBQ3H4UXT6ND7427 · pith_short_8: BBQ3H4UX

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/BBQ3H4UXT6ND7427EUQTQINIVD \
  | 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: 0861b3f2979f9a3ff35f25213821a8a8f8699f2dfa8e8eaa81bc63253cc9629a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2695463279284b4844b84e99e5a4d7bbc046a58e1b45c4a518da238ff267a933",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-03-14T15:08:27Z",
    "title_canon_sha256": "ce73b5afa082bf3943ba0d6d340662bbd05acc78c3afc506b544f69e1ed37a9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3600",
    "kind": "arxiv",
    "version": 1
  }
}