Pith Number

pith:4SNM4EO3

pith:2013:4SNM4EO3QGFDNL7NHPTQNBMEYQ

not attested not anchored not stored refs pending

A comparison of period finding algorithms

Alison Maher, Andrew J. Drake, Ashish A. Mahabal, Ciro Donalek, Matthew J. Graham, S.G. Djorgovski, Victor Duan

arxiv:1307.2209 v1 · 2013-07-08 · 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{4SNM4EO3QGFDNL7NHPTQNBMEYQ}

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	2026-05-18T01:48:58.612998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e49ace11db818a36afed3be7068584c400630d2dada78da3dadbf1dda8ef3d78

Aliases

arxiv: 1307.2209 · arxiv_version: 1307.2209v1 · doi: 10.48550/arxiv.1307.2209 · pith_short_12: 4SNM4EO3QGFD · pith_short_16: 4SNM4EO3QGFDNL7N · pith_short_8: 4SNM4EO3

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/4SNM4EO3QGFDNL7NHPTQNBMEYQ \
  | 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: e49ace11db818a36afed3be7068584c400630d2dada78da3dadbf1dda8ef3d78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c180c73898dc73f03f2411229e20d596fa9a2b9d8ddebcb61329d2b0b817c90d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-07-08T19:31:51Z",
    "title_canon_sha256": "b2a73b88279407b2d19702a71fea42a172e0fc72069cc16534f559fdfd6f37ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2209",
    "kind": "arxiv",
    "version": 1
  }
}