Pith Number

pith:KOPWWQB2

pith:2015:KOPWWQB2W6MRYRWPR7EAKGHUED

not attested not anchored not stored refs pending

A Priori Error Estimates for Mixed Finite Element $\theta$-Schemes for the Wave Equation

Samir Karaa

arxiv:1504.04098 v1 · 2015-04-16 · 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{KOPWWQB2W6MRYRWPR7EAKGHUED}

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	2026-05-18T02:18:39.929986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

539f6b403ab7991c46cf8fc80518f420c37bd84867b272a4769bae9c2de4be2f

Aliases

arxiv: 1504.04098 · arxiv_version: 1504.04098v1 · doi: 10.48550/arxiv.1504.04098 · pith_short_12: KOPWWQB2W6MR · pith_short_16: KOPWWQB2W6MRYRWP · pith_short_8: KOPWWQB2

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/KOPWWQB2W6MRYRWPR7EAKGHUED \
  | 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: 539f6b403ab7991c46cf8fc80518f420c37bd84867b272a4769bae9c2de4be2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0d27cd056b22eecdec98768ddefa2f1370c650ffdac7f1d6e8480c820e2962c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-04-16T05:08:21Z",
    "title_canon_sha256": "4cdcf4733c0f7c70f4a25bf01b4285e0f854b46a270b1ac5896ad921cdddc5ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04098",
    "kind": "arxiv",
    "version": 1
  }
}