Pith Number

pith:DGCSM7BU

pith:2010:DGCSM7BUCV2H62T5Y5TAQDZ62D

not attested not anchored not stored refs pending

Chemical signatures of the first star clusters

Joe Silk, Joss Bland-Hawthorn, Mark Krumholz, Sanjib Sharma, Torgny Karlsson

arxiv:1007.5374 v1 · 2010-07-30 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DGCSM7BUCV2H62T5Y5TAQDZ62D}

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	2026-05-18T02:06:01.014671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1985267c3415747f6a7dc766080f3ed0c1060a795dea391bfc216dc80141e5fe

Aliases

arxiv: 1007.5374 · arxiv_version: 1007.5374v1 · doi: 10.48550/arxiv.1007.5374 · pith_short_12: DGCSM7BUCV2H · pith_short_16: DGCSM7BUCV2H62T5 · pith_short_8: DGCSM7BU

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/DGCSM7BUCV2H62T5Y5TAQDZ62D \
  | 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: 1985267c3415747f6a7dc766080f3ed0c1060a795dea391bfc216dc80141e5fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e75ee2e368bba43b0e12f89572325a895c2bf369bbc887c837da71a2a5b66e76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-07-30T05:52:14Z",
    "title_canon_sha256": "91fb4a41a43b34238df178dffdc076794df2a8aba6394db1b992b705b6ff4b0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.5374",
    "kind": "arxiv",
    "version": 1
  }
}