Pith Number

pith:2SFHMDRW

pith:2011:2SFHMDRWNYYGMFXMZQVBHMYKYY

not attested not anchored not stored refs pending

The enigmatic core L1451-mm: a first hydrostatic core? or a hidden VeLLO?

Alyssa A. Goodman, Guillem Anglada, H\'ector G. Arce, Jaime E. Pineda, Jens Kauffmann, Joel Tanner, Jonathan B. Foster, Mario Tafalla, Paola Caselli, Scott Schnee, Thomas Robitaille, Tyler Bourke

arxiv:1109.1207 v1 · 2011-09-06 · 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{2SFHMDRWNYYGMFXMZQVBHMYKYY}

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	2026-05-18T02:00:38.964059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d48a760e366e306616eccc2a13b30ac63c8db7d710c668a7c12c1e3859ad93f0

Aliases

arxiv: 1109.1207 · arxiv_version: 1109.1207v1 · doi: 10.48550/arxiv.1109.1207 · pith_short_12: 2SFHMDRWNYYG · pith_short_16: 2SFHMDRWNYYGMFXM · pith_short_8: 2SFHMDRW

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/2SFHMDRWNYYGMFXMZQVBHMYKYY \
  | 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: d48a760e366e306616eccc2a13b30ac63c8db7d710c668a7c12c1e3859ad93f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "208e263e428ad7dcf29fa84613b05eb6a6cad110b891ee31153d86174628bcda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-09-06T15:07:15Z",
    "title_canon_sha256": "946127ebac9c634e595113b9848099caddf48270bf4d16189da55db2e8f3ae12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1207",
    "kind": "arxiv",
    "version": 1
  }
}