Pith Number

pith:PEN7U4PC

pith:2012:PEN7U4PC4CQC2HYZTRISLHAIUT

not attested not anchored not stored refs pending

Signatures of an intermediate-age metal-rich bulge population

A. Gal-Yam, A. Gould, D. Ad\'en, I. Thompson, J. A. Johnson, J. G. Cohen, J. Mel\'endez, M. Asplund, S. Feltzing, S. Lucatello, T. Bensby

arxiv:1201.2013 v1 · 2012-01-10 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PEN7U4PC4CQC2HYZTRISLHAIUT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:04:54.207579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

791bfa71e2e0a02d1f199c51259c08a4cb8ad73210bc981c58d47a660e0cc34d

Aliases

arxiv: 1201.2013 · arxiv_version: 1201.2013v1 · doi: 10.48550/arxiv.1201.2013 · pith_short_12: PEN7U4PC4CQC · pith_short_16: PEN7U4PC4CQC2HYZ · pith_short_8: PEN7U4PC

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/PEN7U4PC4CQC2HYZTRISLHAIUT \
  | 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: 791bfa71e2e0a02d1f199c51259c08a4cb8ad73210bc981c58d47a660e0cc34d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e205383216f3616347be5c733e44fe2a9556d5f883db295b079348c183bd8db9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-01-10T10:40:57Z",
    "title_canon_sha256": "bbf5cb2a8e54d8dc65db3ad0fe2e43fda561df1f20a40968577023066ebfc775"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2013",
    "kind": "arxiv",
    "version": 1
  }
}