Pith Number

pith:XFMEZRW4

pith:2012:XFMEZRW44BP4U2ET7XCZTYPWGT

not attested not anchored not stored refs pending

Evidence for Two Distinct Stellar Initial Mass Functions

Dennis Zaritsky (U. Arizona), Janet E. Colucci (UCSC), Peter M. Pessev (Gemini South), Rebecca A. Bernstein (UCSC), Rupali Chandar (U. Toledo)

arxiv:1209.3788 v1 · 2012-09-17 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XFMEZRW44BP4U2ET7XCZTYPWGT}

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	2026-05-18T01:54:27.171310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9584cc6dce05fca6893fdc599e1f634f7dfd1cf8c8f9dde17dab05ca6785305

Aliases

arxiv: 1209.3788 · arxiv_version: 1209.3788v1 · doi: 10.48550/arxiv.1209.3788 · pith_short_12: XFMEZRW44BP4 · pith_short_16: XFMEZRW44BP4U2ET · pith_short_8: XFMEZRW4

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/XFMEZRW44BP4U2ET7XCZTYPWGT \
  | 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: b9584cc6dce05fca6893fdc599e1f634f7dfd1cf8c8f9dde17dab05ca6785305

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21466abd5afaf745266732ce511c867cd1d08853e086de24e52f4a6d4e28036a",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-09-17T20:08:55Z",
    "title_canon_sha256": "d82cad8b6d65596782d9d3f4d13dae521580ac9e92234020796ed09ce2200692"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3788",
    "kind": "arxiv",
    "version": 1
  }
}