Pith Number

pith:ZAAJG2ZK

pith:2010:ZAAJG2ZKH6ZQBK6IR6XVQRRQOL

not attested not anchored not stored refs pending

No Open Cluster in the Ruprecht 93 Region

H. Sung, M.S. Bessell, S. Cheon

arxiv:1007.2686 v1 · 2010-07-16 · 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{ZAAJG2ZKH6ZQBK6IR6XVQRRQOL}

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	2026-05-18T02:06:21.392695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c800936b2a3fb300abc88faf58463072d7d816d3fc2e1f8292cfb8dae56cbab2

Aliases

arxiv: 1007.2686 · arxiv_version: 1007.2686v1 · doi: 10.48550/arxiv.1007.2686 · pith_short_12: ZAAJG2ZKH6ZQ · pith_short_16: ZAAJG2ZKH6ZQBK6I · pith_short_8: ZAAJG2ZK

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/ZAAJG2ZKH6ZQBK6IR6XVQRRQOL \
  | 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: c800936b2a3fb300abc88faf58463072d7d816d3fc2e1f8292cfb8dae56cbab2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6f3565913bf55d2116a601a92de28d19fc26683028ab336ce5b475f1fb6778b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-07-16T00:50:21Z",
    "title_canon_sha256": "04cf75e360110f562183c065ca6ca6ba94d87aaa24ba5db63655e3d2eeeff53e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2686",
    "kind": "arxiv",
    "version": 1
  }
}