Pith Number

pith:RH2L3DK5

pith:2026:RH2L3DK5ZVPCA53T5SCGQCYF6L

not attested not anchored not stored refs pending

A Comparison of High-Dimensional Variable Selection Procedures for Electricity Spot Price Forecasting

Charisios Grivas, Mikkel Mandrup, Orimar Sauri

arxiv:2608.09213 v1 · 2026-08-10 · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RH2L3DK5ZVPCA53T5SCGQCYF6L}

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	2026-08-11T02:22:05.981832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89f4bd8d5dcd5e207773ec84680b05f2da62046880e7450cb5d1e2c87875e938

Aliases

arxiv: 2608.09213 · arxiv_version: 2608.09213v1 · doi: 10.48550/arxiv.2608.09213 · pith_short_12: RH2L3DK5ZVPC · pith_short_16: RH2L3DK5ZVPCA53T · pith_short_8: RH2L3DK5

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/RH2L3DK5ZVPCA53T5SCGQCYF6L \
  | 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: 89f4bd8d5dcd5e207773ec84680b05f2da62046880e7450cb5d1e2c87875e938

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a59727d98dd90a6f1df9eff94bd924d8e24e96ff38e7a1cc38f74e8a55657b2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2026-08-10T07:39:22Z",
    "title_canon_sha256": "65383c00f63aae333cacc0eafe933cbdcce3aa4d9bfd799469cadf22f43a9f5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.09213",
    "kind": "arxiv",
    "version": 1
  }
}