Pith Number

pith:FEQ5NA3M

pith:2013:FEQ5NA3M4DQWOSKOD4ZSDPZ26H

not attested not anchored not stored refs pending

Irregular time series in astronomy and the use of the Lomb-Scargle periodogram

M. Diaz-Trigo, P. Andreani, R. Vio

arxiv:1301.4826 v1 · 2013-01-21 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FEQ5NA3M4DQWOSKOD4ZSDPZ26H}

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	2026-05-18T03:35:55.499708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2921d6836ce0e167494e1f3321bf3af1f7bb3a6599f4b8d32fc57d9c6904ad69

Aliases

arxiv: 1301.4826 · arxiv_version: 1301.4826v1 · doi: 10.48550/arxiv.1301.4826 · pith_short_12: FEQ5NA3M4DQW · pith_short_16: FEQ5NA3M4DQWOSKO · pith_short_8: FEQ5NA3M

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/FEQ5NA3M4DQWOSKOD4ZSDPZ26H \
  | 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: 2921d6836ce0e167494e1f3321bf3af1f7bb3a6599f4b8d32fc57d9c6904ad69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6142067c205d6a4dfcd90aaef0597db7eba529777a0dcf82819933ccb513a576",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-01-21T11:47:08Z",
    "title_canon_sha256": "a2925409358b9d76396475144876bda85c561ccd76d9d8ca8432d5a0d3a67845"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4826",
    "kind": "arxiv",
    "version": 1
  }
}