Pith Number

pith:QCPZIHDW

pith:2022:QCPZIHDWAT4TOW6YQJUH7T3SZB

not attested not anchored not stored refs pending

Tc-rich M stars: platypuses of low-mass star evolution

Alain Jorissen, Lionel Siess, Shreeya Shetye, Sophie Van Eck, Stephane Goriely

arxiv:2201.02851 v1 · 2022-01-08 · 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{QCPZIHDWAT4TOW6YQJUH7T3SZB}

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	2026-07-05T05:22:42.976171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

809f941c7604f9375bd882687fcf72c872cae20dc3d6103e892b785d13ade4c2

Aliases

arxiv: 2201.02851 · arxiv_version: 2201.02851v1 · doi: 10.48550/arxiv.2201.02851 · pith_short_12: QCPZIHDWAT4T · pith_short_16: QCPZIHDWAT4TOW6Y · pith_short_8: QCPZIHDW

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/QCPZIHDWAT4TOW6YQJUH7T3SZB \
  | 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: 809f941c7604f9375bd882687fcf72c872cae20dc3d6103e892b785d13ade4c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03f9107b0ba5ee20629f0640c571e777ac7d697ede67b4efbfb25cc6d6716a8a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-01-08T16:10:48Z",
    "title_canon_sha256": "16e3016e037c8e61364ff0efdf60e45884b6ae0d18700c77c868acf1f75d84b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.02851",
    "kind": "arxiv",
    "version": 1
  }
}