Pith Number

pith:DON3CEX2

pith:2012:DON3CEX2GXSXN5UDTODQRCSEPS

not attested not anchored not stored refs pending

Evidence for Environmental Dependence of the Upper Stellar Initial Mass Function in Orion A

Jesus Hernandez, John J. Tobin, Laura Ingleby, Lee Hartmann, Lori Allen, S. T. Megeath, Wen-hsin Hsu

arxiv:1212.1171 v1 · 2012-12-05 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DON3CEX2GXSXN5UDTODQRCSEPS}

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	2026-05-18T01:52:47.259749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b9bb112fa35e576f6839b87088a447c89432446d54383ffa0528f04284c0c32

Aliases

arxiv: 1212.1171 · arxiv_version: 1212.1171v1 · doi: 10.48550/arxiv.1212.1171 · pith_short_12: DON3CEX2GXSX · pith_short_16: DON3CEX2GXSXN5UD · pith_short_8: DON3CEX2

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/DON3CEX2GXSXN5UDTODQRCSEPS \
  | 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: 1b9bb112fa35e576f6839b87088a447c89432446d54383ffa0528f04284c0c32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcbc7d34ccef41b119482d8b2e7e7501f66ad03cd02c8e6613de931e6ece2107",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-12-05T21:00:42Z",
    "title_canon_sha256": "14f1f0dc538838851a383feab04a93e21759876d2ba17a9350b7a3268a5f7532"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1171",
    "kind": "arxiv",
    "version": 1
  }
}