Pith Number

pith:ZFCLPOT4

pith:2026:ZFCLPOT4TAP6ZBCHIYKNYQWYL3

not attested not anchored not stored refs pending

The initial conditions and initial mass functions of Alpha Persei, Pleiades and Praesepe

H. Baumgardt, L. Hobart, S. Sweet

arxiv:2607.17300 v1 · 2026-07-19 · astro-ph.GA · 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{ZFCLPOT4TAP6ZBCHIYKNYQWYL3}

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	2026-07-21T01:21:26.096359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c944b7ba7c981fec84474614dc42d85ee18443dba2c83b52f7f8d990bd4ee257

Aliases

arxiv: 2607.17300 · arxiv_version: 2607.17300v1 · doi: 10.48550/arxiv.2607.17300 · pith_short_12: ZFCLPOT4TAP6 · pith_short_16: ZFCLPOT4TAP6ZBCH · pith_short_8: ZFCLPOT4

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/ZFCLPOT4TAP6ZBCHIYKNYQWYL3 \
  | 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: c944b7ba7c981fec84474614dc42d85ee18443dba2c83b52f7f8d990bd4ee257

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18bbf0ba2f83a5bbfc65982c1afa67c284fcd34be205b386ffbfde1efa3ce2ea",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-19T15:34:06Z",
    "title_canon_sha256": "89a12710c9d6534e9b1e37413577c0891a38353e25f4cae1979bdb7c3b03147c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17300",
    "kind": "arxiv",
    "version": 1
  }
}