Pith Number

pith:ZM53DO3N

pith:2024:ZM53DO3N5KEXU7KH2F5PLUELC4

not attested not anchored not stored refs pending

Solving the 2D Advection-Diffusion Equation using Fixed-Depth Symbolic Regression and Symbolic Differentiation without Expression Trees

Edward Finkelstein

arxiv:2411.00011 v2 · 2024-10-18 · stat.CO · cs.LG · 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{ZM53DO3N5KEXU7KH2F5PLUELC4}

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	2026-07-05T09:33:39.698505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb3bb1bb6dea897a7d47d17af5d08b173ffcfc63c11201d6ff452f4f6da4846d

Aliases

arxiv: 2411.00011 · arxiv_version: 2411.00011v2 · doi: 10.48550/arxiv.2411.00011 · pith_short_12: ZM53DO3N5KEX · pith_short_16: ZM53DO3N5KEXU7KH · pith_short_8: ZM53DO3N

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/ZM53DO3N5KEXU7KH2F5PLUELC4 \
  | 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: cb3bb1bb6dea897a7d47d17af5d08b173ffcfc63c11201d6ff452f4f6da4846d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "055480d73064e4039b1b275f68ffc481921e6bb8a58374b281b7a6a52d244b96",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2024-10-18T06:11:17Z",
    "title_canon_sha256": "56caf95424533968f4fab02cd9c4265d43c685d316d98bd12fd0d5ce411247da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.00011",
    "kind": "arxiv",
    "version": 2
  }
}