Pith Number

pith:2RAQHOZT

pith:2016:2RAQHOZTG6UUZRGR6G7YLJQ4OO

not attested not anchored not stored refs pending

Adaptive FEM with coarse initial mesh guarantees optimal convergence rates for compactly perturbed elliptic problems

Alexander Haberl, Alex Bespalov, Dirk Praetorius

arxiv:1606.08319 v2 · 2016-06-27 · 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{2RAQHOZTG6UUZRGR6G7YLJQ4OO}

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	2026-05-18T00:52:02.002115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d44103bb3337a94cc4d1f1bf85a61c7382ea3d234b3fd22fec5a100b029699b2

Aliases

arxiv: 1606.08319 · arxiv_version: 1606.08319v2 · doi: 10.48550/arxiv.1606.08319 · pith_short_12: 2RAQHOZTG6UU · pith_short_16: 2RAQHOZTG6UUZRGR · pith_short_8: 2RAQHOZT

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/2RAQHOZTG6UUZRGR6G7YLJQ4OO \
  | 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: d44103bb3337a94cc4d1f1bf85a61c7382ea3d234b3fd22fec5a100b029699b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aeb34697591a1206cd84efd26c27b4d64cc05abb446fd3c1970292ee38e022b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-06-27T15:35:24Z",
    "title_canon_sha256": "41cb2d5159bc236eb2ba49a54fc12d7e3efd933d6602511c7415ab93a8d5c0f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.08319",
    "kind": "arxiv",
    "version": 2
  }
}