Pith Number

pith:2QYB4KSD

pith:2012:2QYB4KSDYFRD6H4BBHEVAK4VLB

not attested not anchored not stored refs pending

CX Lyrae 2008 Observing Campaign

Franz-Josef Hambsch, Jean-Francois Le Borgne, Pierre de Ponthiere

arxiv:1212.0026 v1 · 2012-11-30 · 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{2QYB4KSDYFRD6H4BBHEVAK4VLB}

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	2026-05-18T03:39:27.609495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4301e2a43c1623f1f8109c9502b95586da4d55739c6780f0c6414914b24aceb

Aliases

arxiv: 1212.0026 · arxiv_version: 1212.0026v1 · doi: 10.48550/arxiv.1212.0026 · pith_short_12: 2QYB4KSDYFRD · pith_short_16: 2QYB4KSDYFRD6H4B · pith_short_8: 2QYB4KSD

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/2QYB4KSDYFRD6H4BBHEVAK4VLB \
  | 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: d4301e2a43c1623f1f8109c9502b95586da4d55739c6780f0c6414914b24aceb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "651ac3a210855d64e838c81e33025c9a3d416f92c551b8393754301b61316580",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-30T22:15:26Z",
    "title_canon_sha256": "8fc8824b6c9f67305ae8237320c7e44acebf142d269ef16c1fb654a80d9c5cd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0026",
    "kind": "arxiv",
    "version": 1
  }
}