Pith Number

pith:W5SFBP4S

pith:2026:W5SFBP4SRPGXODCO5SH5JRBEBW

not attested not anchored not stored refs pending

NektarIR: A Domain-Specific Compiler for High-Order Finite Element Operations on Heterogeneous Hardware

David Moxey, Edward Erasmie-Jones, Giacomo Castiglioni

arxiv:2606.20917 v1 · 2026-06-18 · cs.MS · cs.NA · math.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W5SFBP4SRPGXODCO5SH5JRBEBW}

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	2026-06-23T01:12:21.963820Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b76450bf928bcd770c4eec8fd4c4240d9c7a2ae5163374e4f1f655a33a998ce0

Aliases

arxiv: 2606.20917 · arxiv_version: 2606.20917v1 · doi: 10.48550/arxiv.2606.20917 · pith_short_12: W5SFBP4SRPGX · pith_short_16: W5SFBP4SRPGXODCO · pith_short_8: W5SFBP4S

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/W5SFBP4SRPGXODCO5SH5JRBEBW \
  | 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: b76450bf928bcd770c4eec8fd4c4240d9c7a2ae5163374e4f1f655a33a998ce0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fce4484d22cfe4dab952649a46000992a77695032e1ad5cb09d88f314e2ad1c3",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2026-06-18T20:12:48Z",
    "title_canon_sha256": "899c1a7f3236eb40d1a390cd5c2850e3f8014aa09e5bb269184cb4b3b692223e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20917",
    "kind": "arxiv",
    "version": 1
  }
}