Pith Number

pith:PWTJWP5I

pith:2026:PWTJWP5ILPBOKHRPJUW4XXTVMD

not attested not anchored not stored refs pending

PINNsur: Physics-Informed Neural Networks for PDEs on Curved Surfaces

Navami Kairanda, Oded Stein, Peter Yichen Chen, Pranav Jain

arxiv:2605.27308 v1 · 2026-05-26 · cs.GR · 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{PWTJWP5ILPBOKHRPJUW4XXTVMD}

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	2026-05-27T02:06:17.415839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7da69b3fa85bc2e51e2f4d2dcbde7560fdf5de4392b708148101c3b838b8850d

Aliases

arxiv: 2605.27308 · arxiv_version: 2605.27308v1 · doi: 10.48550/arxiv.2605.27308 · pith_short_12: PWTJWP5ILPBO · pith_short_16: PWTJWP5ILPBOKHRP · pith_short_8: PWTJWP5I

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/PWTJWP5ILPBOKHRPJUW4XXTVMD \
  | 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: 7da69b3fa85bc2e51e2f4d2dcbde7560fdf5de4392b708148101c3b838b8850d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "606d4059ccc9ec6c4704db21e7b21149d3a6c6f68a42670627599312ac5d4f11",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2026-05-26T17:18:37Z",
    "title_canon_sha256": "89e7a8b5c78d5399be53d03da2578ec94df4d34c3e76a5350ab1ef13a804a515"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27308",
    "kind": "arxiv",
    "version": 1
  }
}