Pith Number

pith:XGLJRFJ2

pith:2018:XGLJRFJ27NOCHLJR62HGH54SKS

not attested not anchored not stored refs pending

Finite element error estimates for normal derivatives on boundary concentrated meshes

J. Pfefferer, M. Winkler

arxiv:1804.05723 v1 · 2018-04-16 · math.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XGLJRFJ27NOCHLJR62HGH54SKS}

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	2026-05-18T00:18:27.517071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b99698953afb5c23ad31f68e63f79254ad8a832b3c059c3b4aebf816abbde165

Aliases

arxiv: 1804.05723 · arxiv_version: 1804.05723v1 · doi: 10.48550/arxiv.1804.05723 · pith_short_12: XGLJRFJ27NOC · pith_short_16: XGLJRFJ27NOCHLJR · pith_short_8: XGLJRFJ2

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/XGLJRFJ27NOCHLJR62HGH54SKS \
  | 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: b99698953afb5c23ad31f68e63f79254ad8a832b3c059c3b4aebf816abbde165

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8ceaeb7db21008c8fab93bce4b717586d8ca2629d8005d49db2282bc6ca0711",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-16T15:01:23Z",
    "title_canon_sha256": "fb1153f1217711ed663086520e60a107c66568df95b4bdfa4385fe98e08ede50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05723",
    "kind": "arxiv",
    "version": 1
  }
}