Pith Number

pith:ZC6CZRNH

pith:2014:ZC6CZRNHCDGLTZDGEGSN3LRXUR

not attested not anchored not stored refs pending

A Posteriori Error Analysis of $hp$-FEM for singularly perturbed problems

Jens M. Melenk, Thomas P. Wihler

arxiv:1408.6037 v2 · 2014-08-26 · 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{ZC6CZRNHCDGLTZDGEGSN3LRXUR}

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	2026-05-18T02:17:33.647219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8bc2cc5a710ccb9e46621a4ddae37a45bfa9964c41d70fda25ced209ad63aa8

Aliases

arxiv: 1408.6037 · arxiv_version: 1408.6037v2 · doi: 10.48550/arxiv.1408.6037 · pith_short_12: ZC6CZRNHCDGL · pith_short_16: ZC6CZRNHCDGLTZDG · pith_short_8: ZC6CZRNH

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/ZC6CZRNHCDGLTZDGEGSN3LRXUR \
  | 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: c8bc2cc5a710ccb9e46621a4ddae37a45bfa9964c41d70fda25ced209ad63aa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb6f71ea3f274126f958ff655423a98a47cae72d3833cfb6f18486ea876c3fc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-08-26T07:35:48Z",
    "title_canon_sha256": "1f9f25762023dadd8b785d2effef33d0fedc34a37a89156ab94dd107ca8ee36d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.6037",
    "kind": "arxiv",
    "version": 2
  }
}