Pith Number

pith:NQZXSZLQ

pith:2018:NQZXSZLQQXJAZQNV7DTSZQZ7VE

not attested not anchored not stored refs pending

On the episodic excursions of massive protostars in the Hertzsprung-Russell diagram

D.M.A. Meyer, E. I. Vorobyov, L. Haemmerl\'e

arxiv:1812.10762 v1 · 2018-12-27 · 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{NQZXSZLQQXJAZQNV7DTSZQZ7VE}

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	2026-05-17T23:56:16.407893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c3379657085d20cc1b5f8e72cc33fa920b467bdcbb66f2300c14c4be5e62ec7

Aliases

arxiv: 1812.10762 · arxiv_version: 1812.10762v1 · doi: 10.48550/arxiv.1812.10762 · pith_short_12: NQZXSZLQQXJA · pith_short_16: NQZXSZLQQXJAZQNV · pith_short_8: NQZXSZLQ

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/NQZXSZLQQXJAZQNV7DTSZQZ7VE \
  | 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: 6c3379657085d20cc1b5f8e72cc33fa920b467bdcbb66f2300c14c4be5e62ec7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99362c158708f2945febe0359d4896f356690cd4492f190ac8998a8a41bb69ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-12-27T16:40:25Z",
    "title_canon_sha256": "be16225e9296f2d7f102871a71c0d7e348f575e13635358438acbdae808124e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.10762",
    "kind": "arxiv",
    "version": 1
  }
}