Pith Number

pith:KWCG2GRW

pith:2013:KWCG2GRW3L5WKM2WEOGM3KAZRV

not attested not anchored not stored refs pending

Modeling the Pollution of Pristine Gas in the Early Universe

Evan Scannapieco, John Scalo, Liubin Pan

arxiv:1306.4663 v2 · 2013-06-19 · astro-ph.GA · 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{KWCG2GRW3L5WKM2WEOGM3KAZRV}

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	2026-05-18T01:49:14.683503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55846d1a36dafb653356238ccda8198d40da91456e2f89d207ba1acc1ae379db

Aliases

arxiv: 1306.4663 · arxiv_version: 1306.4663v2 · doi: 10.48550/arxiv.1306.4663 · pith_short_12: KWCG2GRW3L5W · pith_short_16: KWCG2GRW3L5WKM2W · pith_short_8: KWCG2GRW

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/KWCG2GRW3L5WKM2WEOGM3KAZRV \
  | 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: 55846d1a36dafb653356238ccda8198d40da91456e2f89d207ba1acc1ae379db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a29cb0719d7092ef308b6ee65039b0bd04c9690e871982459819447a48d15a5f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-06-19T19:48:22Z",
    "title_canon_sha256": "85d43e905e70c001e61bce3168f2863ff7ebafb9dac76eaabfc90316f6c5cc11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4663",
    "kind": "arxiv",
    "version": 2
  }
}