Pith Number

pith:7U5GEUFJ

pith:2008:7U5GEUFJPPWSQF4QYBII3OG6RG

not attested not anchored not stored refs pending

Effects of metal enrichment and metal cooling in galaxy growth and cosmic star formation history

IPMU), Jun-Hwan Choi (UNLV), Kentaro Nagamine (UNLV

arxiv:0806.3460 v2 · 2008-06-20 · 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{7U5GEUFJPPWSQF4QYBII3OG6RG}

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	2026-05-18T04:04:52.385057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd3a6250a97bed281790c0508db8de89856788e098397bfd68e41d2b61a45732

Aliases

arxiv: 0806.3460 · arxiv_version: 0806.3460v2 · doi: 10.48550/arxiv.0806.3460 · pith_short_12: 7U5GEUFJPPWS · pith_short_16: 7U5GEUFJPPWSQF4Q · pith_short_8: 7U5GEUFJ

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/7U5GEUFJPPWSQF4QYBII3OG6RG \
  | 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: fd3a6250a97bed281790c0508db8de89856788e098397bfd68e41d2b61a45732

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf792f1d583af48b42c437e2f62f34831020d493063bfd4496bd6a7c91d3d925",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-06-20T20:13:13Z",
    "title_canon_sha256": "8f4bf270c40be36ccb5ca59d9dd4978de03a5307e3125e416f8c949d0267c4fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.3460",
    "kind": "arxiv",
    "version": 2
  }
}