Pith Number

pith:XMVNMERG

pith:2014:XMVNMERGKCLOIJEXIP5YB2DOYP

not attested not anchored not stored refs pending

COFFEE: an Optimizing Compiler for Finite Element Local Assembly

Ana Lucia Varbanescu, David A. Ham, Fabio Luporini, Florian Rathgeber, Gheorghe-Teodor Bercea, J. Ramanujam, Paul H.J. Kelly

arxiv:1407.0904 v2 · 2014-07-03 · cs.MS · cs.CE · cs.PF

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XMVNMERGKCLOIJEXIP5YB2DOYP}

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	2026-05-18T00:44:46.299131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb2ad612265096e4249743fb80e86ec3fdb5f8bbe6ea8a8b3e2677648819e29e

Aliases

arxiv: 1407.0904 · arxiv_version: 1407.0904v2 · doi: 10.48550/arxiv.1407.0904 · pith_short_12: XMVNMERGKCLO · pith_short_16: XMVNMERGKCLOIJEX · pith_short_8: XMVNMERG

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/XMVNMERGKCLOIJEXIP5YB2DOYP \
  | 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: bb2ad612265096e4249743fb80e86ec3fdb5f8bbe6ea8a8b3e2677648819e29e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b3bd676e6280a1a6444e392089769b1257a4762917460e85ec3f5789280117d",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.PF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2014-07-03T13:01:45Z",
    "title_canon_sha256": "4f4dcf6a5687721d5fcf1055ff7be7216ce4971c06ce5f1537e8cab8b58690ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.0904",
    "kind": "arxiv",
    "version": 2
  }
}