Pith Number

pith:ULHFLJHC

pith:2004:ULHFLJHCMBGVU2DMXPZSNK5UOS

not attested not anchored not stored refs pending

A simple test for periodic signals in red noise

S. Vaughan (University of Leicester)

arxiv:astro-ph/0412697 v1 · 2004-12-30 · astro-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{ULHFLJHCMBGVU2DMXPZSNK5UOS}

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	2026-07-04T16:45:29.444975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ce55a4e2604d5a686cbbf326abb474bd1862e1b6cac1f46802851c45f13e78

Aliases

arxiv: astro-ph/0412697 · arxiv_version: astro-ph/0412697v1 · doi: 10.48550/arxiv.astro-ph/0412697 · pith_short_12: ULHFLJHCMBGV · pith_short_16: ULHFLJHCMBGVU2DM · pith_short_8: ULHFLJHC

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/ULHFLJHCMBGVU2DMXPZSNK5UOS \
  | 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: a2ce55a4e2604d5a686cbbf326abb474bd1862e1b6cac1f46802851c45f13e78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f31977003fbf200e4b3369cba4ca6ec48b7bad9c14de284fd1592f3086f9ab62",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-30T12:23:58Z",
    "title_canon_sha256": "18e4c5c047078884a7747201023648d3d38020e802df0801cd59f24a27e6c47e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412697",
    "kind": "arxiv",
    "version": 1
  }
}