Pith Number

pith:ZT5LJ7IE

pith:2009:ZT5LJ7IEKEZPXMHPVAXTOTOSHZ

not attested not anchored not stored refs pending

The escape of ionizing photons from supernova-dominated primordial galaxies

Hidenobu Yajima, Masao Mori, Masayuki Umemura, Taishi Nakamoto

arxiv:0906.1658 v1 · 2009-06-09 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZT5LJ7IEKEZPXMHPVAXTOTOSHZ}

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	2026-05-18T02:13:21.352590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccfab4fd045132fbb0efa82f374dd23e606562861c27495f189f1c51cb4a8875

Aliases

arxiv: 0906.1658 · arxiv_version: 0906.1658v1 · doi: 10.48550/arxiv.0906.1658 · pith_short_12: ZT5LJ7IEKEZP · pith_short_16: ZT5LJ7IEKEZPXMHP · pith_short_8: ZT5LJ7IE

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/ZT5LJ7IEKEZPXMHPVAXTOTOSHZ \
  | 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: ccfab4fd045132fbb0efa82f374dd23e606562861c27495f189f1c51cb4a8875

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26b26bf34b465186d2094db07dbd1c4696be73d661b9a79753a33e01ce68105b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-09T08:08:29Z",
    "title_canon_sha256": "56aff834d1018e467f847d2ab1083922d380e411b920638156a20c9b2b582a76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1658",
    "kind": "arxiv",
    "version": 1
  }
}