Pith Number

pith:YLWBLDLA

pith:2026:YLWBLDLAE3J6PJVSZY7SQEBT5L

not attested not anchored not stored refs pending

Evaluation of medium range machine learning models for sub-seasonal prediction

Catherine de Burgh-Day, Chen Li, Debra Hudson, Griffith Young, Harrison Cook, Li Shi, Robin Wedd

arxiv:2606.25417 v1 · 2026-06-24 · physics.ao-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YLWBLDLAE3J6PJVSZY7SQEBT5L}

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	2026-06-25T01:18:04.857697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2ec158d6026d3e7a6b2ce3f281033eadac1aba08a75878e7c74c5539178eef0

Aliases

arxiv: 2606.25417 · arxiv_version: 2606.25417v1 · doi: 10.48550/arxiv.2606.25417 · pith_short_12: YLWBLDLAE3J6 · pith_short_16: YLWBLDLAE3J6PJVS · pith_short_8: YLWBLDLA

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/YLWBLDLAE3J6PJVSZY7SQEBT5L \
  | 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: c2ec158d6026d3e7a6b2ce3f281033eadac1aba08a75878e7c74c5539178eef0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af66fec05fb34f4d8a3af9dd53772d1db53fc6941e57722325cf16f5b004a365",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2026-06-24T05:25:28Z",
    "title_canon_sha256": "6718c87c4e6c1eed34bc2ae0de4f28fe2c360784e0fb01626f63a5cbecf61e6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25417",
    "kind": "arxiv",
    "version": 1
  }
}