Pith Number

pith:TUF7KQ2O

pith:2025:TUF7KQ2OMFEY7ENLSGULOU2YLF

not attested not anchored not stored refs pending

Matrix Factorization-Based Solar Spectral Irradiance Missing Data Imputation with Uncertainty Quantification

Odele Coddington, Xianglei Huang, Yang Chen, Yuxuan Ke

arxiv:2508.04074 v2 · 2025-08-06 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TUF7KQ2OMFEY7ENLSGULOU2YLF}

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	2026-05-20T00:02:52.553272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d0bf5434e61498f91ab91a8b753585976407f031d7caf0bb4a2bd24905e8fc0

Aliases

arxiv: 2508.04074 · arxiv_version: 2508.04074v2 · doi: 10.48550/arxiv.2508.04074 · pith_short_12: TUF7KQ2OMFEY · pith_short_16: TUF7KQ2OMFEY7ENL · pith_short_8: TUF7KQ2O

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/TUF7KQ2OMFEY7ENLSGULOU2YLF \
  | 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: 9d0bf5434e61498f91ab91a8b753585976407f031d7caf0bb4a2bd24905e8fc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38de99f0396fcdf6dc65bf1cd9549d8105f2977ae2dcf59544cd827299409cff",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2025-08-06T04:20:14Z",
    "title_canon_sha256": "7fe08debae2f7ac6d04eed4d1d57c22f11fc7b5ccd123b871d94e093f27b4815"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.04074",
    "kind": "arxiv",
    "version": 2
  }
}