Pith Number

pith:YTQT4PPZ

pith:2010:YTQT4PPZJIKWDDJLYSQUIVTSYW

not attested not anchored not stored refs pending

A posteriori error estimates for a finite element approximation of transmission problems with sign changing coefficients

Juliette Venel (LAMAV), Serge Nicaise (LAMAV)

arxiv:1009.3147 v1 · 2010-09-16 · 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{YTQT4PPZJIKWDDJLYSQUIVTSYW}

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	2026-05-18T04:40:46.938443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4e13e3df94a15618d2bc4a1445672c5b1e7750e9dfe38f62aca1601748c3cb1

Aliases

arxiv: 1009.3147 · arxiv_version: 1009.3147v1 · doi: 10.48550/arxiv.1009.3147 · pith_short_12: YTQT4PPZJIKW · pith_short_16: YTQT4PPZJIKWDDJL · pith_short_8: YTQT4PPZ

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/YTQT4PPZJIKWDDJLYSQUIVTSYW \
  | 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: c4e13e3df94a15618d2bc4a1445672c5b1e7750e9dfe38f62aca1601748c3cb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1f8f59040db19e73e8f93d6fa35c6f9083f8b58053debec216d71c70b3cd7d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-09-16T11:18:47Z",
    "title_canon_sha256": "32e118bcbb8fd9f3ce8e60611c7d539c8183bc32ae0c338120ae8d740d6d0cf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.3147",
    "kind": "arxiv",
    "version": 1
  }
}