Pith Number

pith:T6KNUNVS

pith:2026:T6KNUNVS47RZ72UCQE2DAP4PWE

not attested not anchored not stored refs pending

One Operator to Rule Them All? On Boundary-Indexed Operator Families in Neural PDE Solvers

Lennon J. Shikhman

arxiv:2603.01406 v2 · 2026-03-02 · cs.LG · cs.AI · cs.NA · 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{T6KNUNVS47RZ72UCQE2DAP4PWE}

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	2026-05-21T01:04:23.997095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f94da36b2e7e39fea828134303f8fb120bced34a5cfb072beb68a91fd006dfa

Aliases

arxiv: 2603.01406 · arxiv_version: 2603.01406v2 · doi: 10.48550/arxiv.2603.01406 · pith_short_12: T6KNUNVS47RZ · pith_short_16: T6KNUNVS47RZ72UC · pith_short_8: T6KNUNVS

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/T6KNUNVS47RZ72UCQE2DAP4PWE \
  | 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: 9f94da36b2e7e39fea828134303f8fb120bced34a5cfb072beb68a91fd006dfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9630aeb4e3fccce83ea551b078a93f30cd4bdff5b277a70ff5618ae882ce3a8e",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-03-02T03:15:00Z",
    "title_canon_sha256": "e0c61eb724e55e4a7b6359ed47ceb4dd7952e3ca087481b66bd9826959f77235"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.01406",
    "kind": "arxiv",
    "version": 2
  }
}