Pith Number

pith:4WXRYF3W

pith:2014:4WXRYF3WRXOCG6DONQUXR57H3B

not attested not anchored not stored refs pending

Functional a posteriori error estimates for parabolic time-periodic boundary value problems

Monika Wolfmayr, Sergey Repin, Ulrich Langer

arxiv:1411.2887 v1 · 2014-11-11 · 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{4WXRYF3WRXOCG6DONQUXR57H3B}

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	2026-05-18T02:37:52.790980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5af1c17768ddc23786e6c2978f7e7d84c613e023e11829aa767ccdcbf113d10

Aliases

arxiv: 1411.2887 · arxiv_version: 1411.2887v1 · doi: 10.48550/arxiv.1411.2887 · pith_short_12: 4WXRYF3WRXOC · pith_short_16: 4WXRYF3WRXOCG6DO · pith_short_8: 4WXRYF3W

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/4WXRYF3WRXOCG6DONQUXR57H3B \
  | 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: e5af1c17768ddc23786e6c2978f7e7d84c613e023e11829aa767ccdcbf113d10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5aa5ce52dbfdfc0fd7c04879d87b78c6d40613293b22991b6938d08c55c7b88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-11-11T16:55:01Z",
    "title_canon_sha256": "14622c9792fd4755c7c73b42657c28703784a3687c326bacb4f07c9c36be2149"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2887",
    "kind": "arxiv",
    "version": 1
  }
}