Pith Number

pith:Z5BSRPIK

pith:2013:Z5BSRPIKWNA65OBON2APYNTSCK

not attested not anchored not stored refs pending

Stabilised finite element methods for non-symmetric, non-coercive and ill-posed problems. Part I: elliptic equations

Erik Burman

arxiv:1304.2414 v2 · 2013-04-08 · 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{Z5BSRPIKWNA65OBON2APYNTSCK}

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	2026-05-18T03:16:51.077405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf4328bd0ab341eeb82e6e80fc36721285c04d476274abc2f800f2b51bb89f34

Aliases

arxiv: 1304.2414 · arxiv_version: 1304.2414v2 · doi: 10.48550/arxiv.1304.2414 · pith_short_12: Z5BSRPIKWNA6 · pith_short_16: Z5BSRPIKWNA65OBO · pith_short_8: Z5BSRPIK

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/Z5BSRPIKWNA65OBON2APYNTSCK \
  | 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: cf4328bd0ab341eeb82e6e80fc36721285c04d476274abc2f800f2b51bb89f34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3570f3b8c2e259b80b191e9d644ff9d0c1ad378f5e193c646a4b60f32fad111",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-04-08T20:29:17Z",
    "title_canon_sha256": "52563b8102a02962ba05cad820e0c49746aa1bb02d5a75436c547e223a2e5572"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2414",
    "kind": "arxiv",
    "version": 2
  }
}