Pith Number

pith:AUWJCATQ

pith:2022:AUWJCATQJJYMSXBMKELDV2GLZN

not attested not anchored not stored refs pending

Spectroscopic evolution of very massive stars at Z = 1/2.5 Zsun

A. Palacios (LUPM, CNRS, F. Martins, Montpellier University)

arxiv:2202.13703 v1 · 2022-02-28 · 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{AUWJCATQJJYMSXBMKELDV2GLZN}

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	2026-07-05T04:16:01.573288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

052c9102704a70c95c2c51163ae8cbcb7fea20b644f69c93f67ffd8a0d20743e

Aliases

arxiv: 2202.13703 · arxiv_version: 2202.13703v1 · doi: 10.48550/arxiv.2202.13703 · pith_short_12: AUWJCATQJJYM · pith_short_16: AUWJCATQJJYMSXBM · pith_short_8: AUWJCATQ

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/AUWJCATQJJYMSXBMKELDV2GLZN \
  | 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: 052c9102704a70c95c2c51163ae8cbcb7fea20b644f69c93f67ffd8a0d20743e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "455b3ef03cd6e8eb6d9de381648baaf1952106354a276d02048e48ffd7bbe4c0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-02-28T11:54:31Z",
    "title_canon_sha256": "2e5da9ea008028b18a51a986ece12e156419f9562d29891f270523e857c23f38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.13703",
    "kind": "arxiv",
    "version": 1
  }
}