Pith Number

pith:AUS2BIHO

pith:2020:AUS2BIHOQRHWJN4ZAZ42HBYSEN

not attested not anchored not stored refs pending

Ultraviolet spectra of extreme nearby star-forming regions: evidence for an overabundance of very massive stars

Alba Vidal-Garc\'ia, Daniel P. Stark, Gustavo Bruzual, Jacopo Chevallard, Peter Senchyna, St\'ephane Charlot

arxiv:2008.09780 v1 · 2020-08-22 · 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{AUS2BIHOQRHWJN4ZAZ42HBYSEN}

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	2026-07-05T02:29:29.998231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0525a0a0ee844f64b7990679a387122348f3d39454ea7379dc8bb04a775a5d8a

Aliases

arxiv: 2008.09780 · arxiv_version: 2008.09780v1 · doi: 10.48550/arxiv.2008.09780 · pith_short_12: AUS2BIHOQRHW · pith_short_16: AUS2BIHOQRHWJN4Z · pith_short_8: AUS2BIHO

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/AUS2BIHOQRHWJN4ZAZ42HBYSEN \
  | 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: 0525a0a0ee844f64b7990679a387122348f3d39454ea7379dc8bb04a775a5d8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5ba0ab13ead235161b8a0cb65d2c06e688216c8b08f9010357ee8e258e4d512",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-08-22T08:35:06Z",
    "title_canon_sha256": "f9b1df51769ea7ba24fcdb6dea890c9538d1f04a1f928d51ebfea2d4177d7354"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.09780",
    "kind": "arxiv",
    "version": 1
  }
}