Pith Number

pith:CCOGYPHA

pith:2012:CCOGYPHA335JQSERH3JOAUKIP3

not attested not anchored not stored refs pending

Adaptive FEM with optimal convergence rates for a certain class of non-symmetric and possibly non-linear problems

Dirk Praetorius, Michael Feischl, Thomas F\"uhrer

arxiv:1210.8369 v2 · 2012-10-31 · math.NA

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CCOGYPHA335JQSERH3JOAUKIP3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:56:32.910391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

109c6c3ce0defa9848913ed2e051487eeea88c2d6fe4e4f48979dd32a2bf592a

Aliases

arxiv: 1210.8369 · arxiv_version: 1210.8369v2 · doi: 10.48550/arxiv.1210.8369 · pith_short_12: CCOGYPHA335J · pith_short_16: CCOGYPHA335JQSER · pith_short_8: CCOGYPHA

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/CCOGYPHA335JQSERH3JOAUKIP3 \
  | 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: 109c6c3ce0defa9848913ed2e051487eeea88c2d6fe4e4f48979dd32a2bf592a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd584b1bf032cba8f112246859ecbe14edc11c2dc8fbe3ab2f9c912de0cd9641",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-10-31T15:38:22Z",
    "title_canon_sha256": "10487992c8838af50163d84cc55d89a8bcb69683108a75e8ab0e24d808108fed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.8369",
    "kind": "arxiv",
    "version": 2
  }
}