Pith Number

pith:IWL26JNP

pith:2018:IWL26JNPFDZNZ5KF75W4ULED3P

not attested not anchored not stored refs pending

$L^{\infty}$-error estimates for Neumann boundary value problems on graded meshes

Johannes Pfefferer, Max Winkler, Sergejs Rogovs, Thomas Apel

arxiv:1804.10904 v1 · 2018-04-29 · 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{IWL26JNPFDZNZ5KF75W4ULED3P}

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	2026-05-18T00:17:15.207198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4597af25af28f2dcf545ff6dca2c83dbf94fd3f7e44563cd4c1184263f2993ca

Aliases

arxiv: 1804.10904 · arxiv_version: 1804.10904v1 · doi: 10.48550/arxiv.1804.10904 · pith_short_12: IWL26JNPFDZN · pith_short_16: IWL26JNPFDZNZ5KF · pith_short_8: IWL26JNP

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/IWL26JNPFDZNZ5KF75W4ULED3P \
  | 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: 4597af25af28f2dcf545ff6dca2c83dbf94fd3f7e44563cd4c1184263f2993ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fc9af1abf380d05ceb053d4561c1eed53733bf21d9f975c795a008275320041",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-29T10:40:21Z",
    "title_canon_sha256": "48e3ee2836b7804c945d272f614b0aaf6ac0c73a086cfd4f835808cb054c514a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10904",
    "kind": "arxiv",
    "version": 1
  }
}