pith. sign in
Pith Number

pith:YWAMTEHI

pith:2012:YWAMTEHIXMC2KIODDBNJ7FXRM2
not attested not anchored not stored refs pending

Why are so many primitive stars observed in the Galaxy halo?

Carl H. Gibson (Univ. Cal. San Diego), Rudolph E. Schild (Harvard Univ.), Theo M. Nieuwenhuizen (Amsterdam University)

arxiv:1206.0187 v1 · 2012-06-01 · physics.gen-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{YWAMTEHIXMC2KIODDBNJ7FXRM2}

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 2026-05-18T03:54:26.866584Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

c580c990e8bb05a521c3185a9f96f166bc180cca5d933400a5d9b1d401afefee

Aliases

arxiv: 1206.0187 · arxiv_version: 1206.0187v1 · doi: 10.48550/arxiv.1206.0187 · pith_short_12: YWAMTEHIXMC2 · pith_short_16: YWAMTEHIXMC2KIOD · pith_short_8: YWAMTEHI
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/YWAMTEHIXMC2KIODDBNJ7FXRM2 \
  | 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: c580c990e8bb05a521c3185a9f96f166bc180cca5d933400a5d9b1d401afefee
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "4368d70d73e3dabe76c24eb91111f0f0d8bd2fd553ece7e589c4c509807123ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2012-06-01T13:58:14Z",
    "title_canon_sha256": "512586b99667ee23de12c616e3b36deb1992aea88dd3af6b991f3829de892d02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.0187",
    "kind": "arxiv",
    "version": 1
  }
}