Pith Number

pith:GZ2ZZL2V

pith:2015:GZ2ZZL2VNREMQBPR5DXM6543AO

not attested not anchored not stored refs pending

Cosmic reionization of hydrogen and helium: contribution from both mini-quasars and stars

Jing-Meng Hao, Lei Wang, Ye-Fei Yuan

arxiv:1505.04108 v1 · 2015-05-15 · 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{GZ2ZZL2VNREMQBPR5DXM6543AO}

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	2026-05-18T01:25:39.099707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36759caf556c48c805f1e8eecf779b03beae15206e111599f53a116a1b8dfac5

Aliases

arxiv: 1505.04108 · arxiv_version: 1505.04108v1 · doi: 10.48550/arxiv.1505.04108 · pith_short_12: GZ2ZZL2VNREM · pith_short_16: GZ2ZZL2VNREMQBPR · pith_short_8: GZ2ZZL2V

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/GZ2ZZL2VNREMQBPR5DXM6543AO \
  | 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: 36759caf556c48c805f1e8eecf779b03beae15206e111599f53a116a1b8dfac5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bcf7e2b42973ae4bc683fbedca52ffec24a3076a70d5d43fb54aa61db0551c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-05-15T16:19:31Z",
    "title_canon_sha256": "33bb3c9afde2fa271eea1731c0e7da93d89f41d7943af32d5c33ac1217669c7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04108",
    "kind": "arxiv",
    "version": 1
  }
}