Pith Number

pith:ML7LL5G3

pith:2019:ML7LL5G3EZW5PCJAYCRCWHVVX7

not attested not anchored not stored refs pending

Spectroscopic membership for the populous 300 Myr-old open cluster NGC 3532

A. M. Geller, D. J. Fritzewski, D. J. James, K. G. Strassmeier, S. A. Barnes, S. Meibom

arxiv:1901.04507 v1 · 2019-01-14 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ML7LL5G3EZW5PCJAYCRCWHVVX7}

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	2026-05-17T23:54:42.475994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62feb5f4db266dd78920c0a22b1eb5bfc061a248a4f5d68f778b9fcf22441e0d

Aliases

arxiv: 1901.04507 · arxiv_version: 1901.04507v1 · doi: 10.48550/arxiv.1901.04507 · pith_short_12: ML7LL5G3EZW5 · pith_short_16: ML7LL5G3EZW5PCJA · pith_short_8: ML7LL5G3

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/ML7LL5G3EZW5PCJAYCRCWHVVX7 \
  | 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: 62feb5f4db266dd78920c0a22b1eb5bfc061a248a4f5d68f778b9fcf22441e0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e13d8658d3a969449366da7d9ff7f21d0fdffe65edcd3324ad553dd7e5e1802",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-14T19:00:04Z",
    "title_canon_sha256": "ba0cb232c5640fc4d934ee6b2ad66fca0ff411d292b9b8143e0ec982d10d0599"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04507",
    "kind": "arxiv",
    "version": 1
  }
}