Pith Number

pith:IJ2RMY7K

pith:2022:IJ2RMY7KBDSRGIGZ3ZECU7EJUX

not attested not anchored not stored refs pending

Benchmarking MESA isochrones against the Hyades single star sequence

Per Calissendorff, Taisiya Kopytova, Wolfgang Brandner

arxiv:2208.04969 v1 · 2022-08-09 · 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{IJ2RMY7KBDSRGIGZ3ZECU7EJUX}

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	2026-07-05T04:47:30.492430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42751663ea08e51320d9de482a7c89a5f21201ca50c8fdddd9e8cdb108b46388

Aliases

arxiv: 2208.04969 · arxiv_version: 2208.04969v1 · doi: 10.48550/arxiv.2208.04969 · pith_short_12: IJ2RMY7KBDSR · pith_short_16: IJ2RMY7KBDSRGIGZ · pith_short_8: IJ2RMY7K

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/IJ2RMY7KBDSRGIGZ3ZECU7EJUX \
  | 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: 42751663ea08e51320d9de482a7c89a5f21201ca50c8fdddd9e8cdb108b46388

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0159c95dfc1476919937b3e707f33940af2a87fff5de33806140c438ddb587d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-08-09T18:00:11Z",
    "title_canon_sha256": "b72535198cee9d66473c39e6b1bd812c1a879525b5b37b5436449d3eb2462e99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.04969",
    "kind": "arxiv",
    "version": 1
  }
}