Pith Number

pith:FKNJYJ7K

pith:2016:FKNJYJ7KRNRWMYNL4CDEQEOOGR

not attested not anchored not stored refs pending

The Virtual Element Method in 50 lines of MATLAB

Oliver J. Sutton

arxiv:1604.06021 v2 · 2016-04-20 · 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{FKNJYJ7KRNRWMYNL4CDEQEOOGR}

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	2026-05-18T01:12:11.765438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a9a9c27ea8b636661abe0864811ce3473cfe8f8b790e7c653b1f16ed4a50422

Aliases

arxiv: 1604.06021 · arxiv_version: 1604.06021v2 · doi: 10.48550/arxiv.1604.06021 · pith_short_12: FKNJYJ7KRNRW · pith_short_16: FKNJYJ7KRNRWMYNL · pith_short_8: FKNJYJ7K

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/FKNJYJ7KRNRWMYNL4CDEQEOOGR \
  | 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: 2a9a9c27ea8b636661abe0864811ce3473cfe8f8b790e7c653b1f16ed4a50422

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f490ac7d11cfdc5ba5818ec8198a3b51e4ecee0eb44b09bcc71a8e208c28d75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-04-20T16:25:12Z",
    "title_canon_sha256": "50cc6d41e12be5a71836e41346c676e89e1c0235b9379fbda038d38928d5b4e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06021",
    "kind": "arxiv",
    "version": 2
  }
}