Pith Number

pith:ZKS5FRVX

pith:2010:ZKS5FRVXOQUSTKWKFGGSRFU66Y

not attested not anchored not stored refs pending

A Universal Stellar Initial Mass Function? A Critical Look at Variations

(2) Cornell, 3), (3) Harvard-Smithsonian CfA, (4) ETH Zurich, 5) ((1) IoA, (5) Steward Observatory), Cambridge, Kevin R. Covey (2, Michael R. Meyer (4, Nate Bastian (1)

arxiv:1001.2965 v2 · 2010-01-18 · 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{ZKS5FRVXOQUSTKWKFGGSRFU66Y}

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	2026-05-18T02:09:43.212028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caa5d2c6b7742929aaca298d28969ef6247521f9017aa87a3576c1a15c674d70

Aliases

arxiv: 1001.2965 · arxiv_version: 1001.2965v2 · doi: 10.48550/arxiv.1001.2965 · pith_short_12: ZKS5FRVXOQUS · pith_short_16: ZKS5FRVXOQUSTKWK · pith_short_8: ZKS5FRVX

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/ZKS5FRVXOQUSTKWKFGGSRFU66Y \
  | 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: caa5d2c6b7742929aaca298d28969ef6247521f9017aa87a3576c1a15c674d70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6772179fcab4ec635bb3b26df38d5c480a07ea97a25d2f6e5401b59d7c4b7a7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-01-18T07:23:13Z",
    "title_canon_sha256": "6270ba13d368aef3649d2594e1a4a507953bf9d4f234004376821c9eb21caba9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2965",
    "kind": "arxiv",
    "version": 2
  }
}