Pith Number

pith:QDJHAW2S

pith:2025:QDJHAW2SQOPQFBENNOT75FKJ2J

not attested not anchored not stored refs pending

Deep Sturm--Liouville: From Sample-Based to 1D Regularization with Learnable Orthogonal Basis Functions

David Vigouroux, IRIT-ADRIA, Joseba Dalmau, Louis B\'ethune (IRIT, UT3), Victor Boutin

arxiv:2504.07151 v1 · 2025-04-09 · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDJHAW2SQOPQFBENNOT75FKJ2J}

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	2026-07-05T10:47:04.126004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80d2705b52839f02848d6ba7fe9549d278ad448e5408c138b728f84c8d098844

Aliases

arxiv: 2504.07151 · arxiv_version: 2504.07151v1 · doi: 10.48550/arxiv.2504.07151 · pith_short_12: QDJHAW2SQOPQ · pith_short_16: QDJHAW2SQOPQFBEN · pith_short_8: QDJHAW2S

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/QDJHAW2SQOPQFBENNOT75FKJ2J \
  | 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: 80d2705b52839f02848d6ba7fe9549d278ad448e5408c138b728f84c8d098844

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a63d68d6152dba76d55a84f7f3c1e5847b51cd0212ac0f60a687f78228c0482",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-09T07:21:13Z",
    "title_canon_sha256": "3896e0411e9ee152173291fda6414ab271240a0767db7fc1a2c4b1c94e7cc03e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.07151",
    "kind": "arxiv",
    "version": 1
  }
}