Pith Number

pith:AZ75DMBR

pith:2015:AZ75DMBRXPNPKMHI2WNGMMVL5X

not attested not anchored not stored refs pending

On an a posteriori error analysis of mixed finite element Galerkin approximations to a second order wave equation

Amiya K. Pani, Samir Karaa

arxiv:1504.01906 v2 · 2015-04-08 · 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{AZ75DMBRXPNPKMHI2WNGMMVL5X}

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	2026-05-18T00:53:15.993429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

067fd1b031bbdaf530e8d59a6632abede0795ff592e5ba30b49262829bd3a4f2

Aliases

arxiv: 1504.01906 · arxiv_version: 1504.01906v2 · doi: 10.48550/arxiv.1504.01906 · pith_short_12: AZ75DMBRXPNP · pith_short_16: AZ75DMBRXPNPKMHI · pith_short_8: AZ75DMBR

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/AZ75DMBRXPNPKMHI2WNGMMVL5X \
  | 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: 067fd1b031bbdaf530e8d59a6632abede0795ff592e5ba30b49262829bd3a4f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40bda35558fdf8035d68c74c48d6ba410d3fc1680e6670f9b7914d4fca5bbe86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-04-08T10:47:01Z",
    "title_canon_sha256": "377238e8dd8b22424906eafe393c57807c0153640326706bdb8bd1331d215bb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01906",
    "kind": "arxiv",
    "version": 2
  }
}