Pith Number

pith:TWND27QP

pith:2024:TWND27QPOUJYUXFM2LJLESQP6B

not attested not anchored not stored refs pending

Stabilizing and Solving Unique Continuation Problems by Parameterizing Data and Learning Finite Element Solution Operators

Carl Lundholm, Erik Burman, Karl Larsson, Mats G. Larson

arxiv:2412.04409 v3 · 2024-12-05 · math.NA · cs.LG · cs.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{TWND27QPOUJYUXFM2LJLESQP6B}

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	2026-07-05T11:44:43.368980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d9a3d7e0f75138a5cacd2d2b24a0ff0758eaa1c3f4c3523744cc2beaf718dd7

Aliases

arxiv: 2412.04409 · arxiv_version: 2412.04409v3 · doi: 10.48550/arxiv.2412.04409 · pith_short_12: TWND27QPOUJY · pith_short_16: TWND27QPOUJYUXFM · pith_short_8: TWND27QP

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/TWND27QPOUJYUXFM2LJLESQP6B \
  | 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: 9d9a3d7e0f75138a5cacd2d2b24a0ff0758eaa1c3f4c3523744cc2beaf718dd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbd0575f60695f1a5fa508644cbe7e116d8c907798d827f9676ba0ada870830f",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-12-05T18:31:14Z",
    "title_canon_sha256": "ce78712cf7c701d53edb8386513f870a24e4ca0a937b9419de69be53d15665c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.04409",
    "kind": "arxiv",
    "version": 3
  }
}