Pith Number

pith:PEA2IMLY

pith:2014:PEA2IMLYNEWZPNTEFLU3PIOAJT

not attested not anchored not stored refs pending

Carbon-Enhanced Metal-Poor Stars: Relics from the Dark Ages

Piero Madau (1) ((1) University of California, Ryan Cooke (1), Santa Cruz)

arxiv:1405.7369 v2 · 2014-05-28 · 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{PEA2IMLYNEWZPNTEFLU3PIOAJT}

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	2026-05-18T01:43:05.226486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7901a43178692d97b6642ae9b7a1c04cc23438733939ad513cd1423b8eaf64a5

Aliases

arxiv: 1405.7369 · arxiv_version: 1405.7369v2 · doi: 10.48550/arxiv.1405.7369 · pith_short_12: PEA2IMLYNEWZ · pith_short_16: PEA2IMLYNEWZPNTE · pith_short_8: PEA2IMLY

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/PEA2IMLYNEWZPNTEFLU3PIOAJT \
  | 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: 7901a43178692d97b6642ae9b7a1c04cc23438733939ad513cd1423b8eaf64a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f119581b207d99ce31d3c5be3006fd15b8ae2183bd3a92c1a0b8c0ce726862",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-05-28T20:00:17Z",
    "title_canon_sha256": "e1ea85c02427687d14c299354c2cf3cebd6b37a9e27a82ecbd2b002f0210a71b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7369",
    "kind": "arxiv",
    "version": 2
  }
}