Pith Number

pith:33YQFFWL

pith:2018:33YQFFWLTYKDBJSUYQRIWVFNJ7

not attested not anchored not stored refs pending

Discovery of a 21 Myr old stellar population in the Orion complex

Daniel B. Zucker, Gayandhi M. De Silva, Geraint F. Lewis, Jane Lin, Janez Kos, Jeffrey D. Simpson, Joss Bland-Hawthorn, Klemen \v{C}otar, Lorenzo Spina, Martin Asplund, Melissa K. Ness, Sanjib Sharma, Sarah L. Martell, Sven Buder, Toma\v{z} Zwitter

arxiv:1811.11762 v2 · 2018-11-28 · 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{33YQFFWLTYKDBJSUYQRIWVFNJ7}

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	2026-07-05T00:31:44.004363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

def10296cb9e1430a654c4228b54ad4ffd832beedeae783abfb7a71a39b1b0a9

Aliases

arxiv: 1811.11762 · arxiv_version: 1811.11762v2 · doi: 10.48550/arxiv.1811.11762 · pith_short_12: 33YQFFWLTYKD · pith_short_16: 33YQFFWLTYKDBJSU · pith_short_8: 33YQFFWL

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/33YQFFWLTYKDBJSUYQRIWVFNJ7 \
  | 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: def10296cb9e1430a654c4228b54ad4ffd832beedeae783abfb7a71a39b1b0a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00652e14bbf4c1baa1c7b56c1852e2b004dbb1dc4453fe61cf1e500ba74965ba",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-11-28T19:00:01Z",
    "title_canon_sha256": "5f1394bc3e49af9a0e487f7bb8e9e02e72b1f4b1be9be91c92432cfe632f2fec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.11762",
    "kind": "arxiv",
    "version": 2
  }
}