Pith Number

pith:Q4R43NZR

pith:2010:Q4R43NZR64QWSLYFILA2N477CW

not attested not anchored not stored refs pending

SDSS J123813.73-033933.0, a cataclysmic variable evolved beyond the period minimum

A. Aviles, A. Sergeev, C. Zurita, D.K. Sahu, E. Pavlenko, G.C. Anupama, G. Tovmassian, M. Andreev, M. Roth, M. Tapia, R. Michel, S. Zharikov, U.S. Kamath, V. Neustroev, V. Tsymbal

arxiv:1001.2599 v2 · 2010-01-15 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4R43NZR64QWSLYFILA2N477CW}

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	2026-05-18T02:09:51.749070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8723cdb731f721692f0542c1a6f3ff15ab2bbaee34012239fc50d4d8fe5ce8ca

Aliases

arxiv: 1001.2599 · arxiv_version: 1001.2599v2 · doi: 10.48550/arxiv.1001.2599 · pith_short_12: Q4R43NZR64QW · pith_short_16: Q4R43NZR64QWSLYF · pith_short_8: Q4R43NZR

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/Q4R43NZR64QWSLYFILA2N477CW \
  | 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: 8723cdb731f721692f0542c1a6f3ff15ab2bbaee34012239fc50d4d8fe5ce8ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11d494554e0c87bcbb26386b25f47855e791d30ae57ecbdd88d47659072c7078",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-01-15T01:53:47Z",
    "title_canon_sha256": "e1ccad01e89bd456d25cf469c76c031724a0024ced8b75a45a7dac8821a15b74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2599",
    "kind": "arxiv",
    "version": 2
  }
}