Pith Number

pith:FCUZUZKS

pith:2026:FCUZUZKSDBMHIDJ26FJX3CTWQG

not attested not anchored not stored refs pending

Courant: a State-Adaptive Perceiver-Based Neural Surrogate with Local Support and Interpretable Field Decomposition

Alexander Lavin, Anuj Kumar, Josiah Bjorgaard, Matteo Salvador, Nikolaos Bouklas

arxiv:2605.25115 v1 · 2026-05-24 · cs.LG · cs.AI · cs.CE · physics.app-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{FCUZUZKSDBMHIDJ26FJX3CTWQG}

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	2026-05-26T02:04:18.747945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28a99a65521858740d3af1537d8a7681ac38aba844e82d2dcd852f9a7d6ee78b

Aliases

arxiv: 2605.25115 · arxiv_version: 2605.25115v1 · doi: 10.48550/arxiv.2605.25115 · pith_short_12: FCUZUZKSDBMH · pith_short_16: FCUZUZKSDBMHIDJ2 · pith_short_8: FCUZUZKS

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/FCUZUZKSDBMHIDJ26FJX3CTWQG \
  | 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: 28a99a65521858740d3af1537d8a7681ac38aba844e82d2dcd852f9a7d6ee78b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a85bb26d12883cb49dd6f1e8d0c852b0051b9a02c05bab60dc92004f352f4a94",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CE",
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-24T14:55:12Z",
    "title_canon_sha256": "1823b8b5aeb8f655211836c971d453a9c853d821c7fce3c91561b591f7472542"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.25115",
    "kind": "arxiv",
    "version": 1
  }
}