Pith Number

pith:ZFSC3AST

pith:2017:ZFSC3ASTXBDHUNIPQGCI2PPMX7

not attested not anchored not stored refs pending

Was there an early reionization component in our universe?

Nickolay Y. Gnedin, Olga Mena, Pablo Villanueva-Domingo, Stefano Gariazzo

arxiv:1712.02807 v2 · 2017-12-07 · 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{ZFSC3ASTXBDHUNIPQGCI2PPMX7}

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	2026-05-18T00:17:41.926049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9642d8253b8467a350f81848d3decbff3c3c743cafbd14940e442276c4ebf34

Aliases

arxiv: 1712.02807 · arxiv_version: 1712.02807v2 · doi: 10.48550/arxiv.1712.02807 · pith_short_12: ZFSC3ASTXBDH · pith_short_16: ZFSC3ASTXBDHUNIP · pith_short_8: ZFSC3AST

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/ZFSC3ASTXBDHUNIPQGCI2PPMX7 \
  | 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: c9642d8253b8467a350f81848d3decbff3c3c743cafbd14940e442276c4ebf34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "348d31c10be61baf56c9d0a02758a9932e7959d90ce311cfd98d35194967cdf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-12-07T19:00:54Z",
    "title_canon_sha256": "d1f7d8b32c33fb33dedd41abec382025faf78507c2b2614df3586cae2a94d4d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02807",
    "kind": "arxiv",
    "version": 2
  }
}