Pith Number

pith:ZRYPDJJG

pith:2008:ZRYPDJJGPXJSMQNIAN3WEZFXK5

not attested not anchored not stored refs pending

A large-scale survey for variable stars in M33

A. Schwarzenberg-Czerny, D. Bersier, J.-B. Marquette, J.D. Hartman, J. Kaluzny, J.-P. Beaulieu, K.Z. Stanek, P.B. Stetson, V. Scowcroft

arxiv:0803.2010 v1 · 2008-03-13 · 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{ZRYPDJJGPXJSMQNIAN3WEZFXK5}

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	2026-05-18T02:16:00.291563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc70f1a5267dd32641a803776264b75774d4ee0630e2454709e326663f75a86c

Aliases

arxiv: 0803.2010 · arxiv_version: 0803.2010v1 · doi: 10.48550/arxiv.0803.2010 · pith_short_12: ZRYPDJJGPXJS · pith_short_16: ZRYPDJJGPXJSMQNI · pith_short_8: ZRYPDJJG

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/ZRYPDJJGPXJSMQNIAN3WEZFXK5 \
  | 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: cc70f1a5267dd32641a803776264b75774d4ee0630e2454709e326663f75a86c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b43c368d1d5a77f00f33172a83c885a1430b6855f486c5d54a43c12a870b1af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-03-13T16:47:37Z",
    "title_canon_sha256": "1b240572b4b1bf3a5312de486216a097a517578bdc150426c423e2fb277d5079"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.2010",
    "kind": "arxiv",
    "version": 1
  }
}