Pith Number

pith:YQX67GW5

pith:2005:YQX67GW5VRDU3LRPXU5NYWKRB4

not attested not anchored not stored refs pending

The cooling of shock-compressed primordial gas

Jarrett L. Johnson, Volker Bromm

arxiv:astro-ph/0505304 v2 · 2005-05-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YQX67GW5VRDU3LRPXU5NYWKRB4}

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	2026-05-18T02:40:25.633604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c42fef9addac474dae2fbd3adc59510f397b884b1f45a895fd96989a0d47002f

Aliases

arxiv: astro-ph/0505304 · arxiv_version: astro-ph/0505304v2 · doi: 10.48550/arxiv.astro-ph/0505304 · pith_short_12: YQX67GW5VRDU · pith_short_16: YQX67GW5VRDU3LRP · pith_short_8: YQX67GW5

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/YQX67GW5VRDU3LRPXU5NYWKRB4 \
  | 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: c42fef9addac474dae2fbd3adc59510f397b884b1f45a895fd96989a0d47002f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a2ebfb4f57169d56c814f71afde832f3a318a33cb0cdba9bc06e778de634c4b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-05-14T00:24:33Z",
    "title_canon_sha256": "958d68e0c8fe0ef058595411baa108ac447ee7a30123bf67692564ca13dfa310"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0505304",
    "kind": "arxiv",
    "version": 2
  }
}