Pith Number

pith:NSPGAQKA

pith:2010:NSPGAQKAMDDFZLQTBFSCL7JIGI

not attested not anchored not stored refs pending

First detection of a low-mass stellar halo around the young open cluster Eta Chamaeleontis

Michael S. Bessell, Simon J. Murphy, Warrick A. Lawson

arxiv:1005.3308 v1 · 2010-05-18 · 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{NSPGAQKAMDDFZLQTBFSCL7JIGI}

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	2026-05-18T02:07:17.259502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c9e60414060c65cae13096425fd283227c9f65277c9380a5465e40d8a41ad72

Aliases

arxiv: 1005.3308 · arxiv_version: 1005.3308v1 · doi: 10.48550/arxiv.1005.3308 · pith_short_12: NSPGAQKAMDDF · pith_short_16: NSPGAQKAMDDFZLQT · pith_short_8: NSPGAQKA

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/NSPGAQKAMDDFZLQTBFSCL7JIGI \
  | 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: 6c9e60414060c65cae13096425fd283227c9f65277c9380a5465e40d8a41ad72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbbeedc9ff02ca4be0c07f574fa595bc18ee1f90529a9533c9fb733681f8804d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-05-18T20:00:09Z",
    "title_canon_sha256": "827efea753f41bd9a1c1dec65a074a4bf4aa088fe9d4c4d411793774fcf0778c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.3308",
    "kind": "arxiv",
    "version": 1
  }
}