Pith Number

pith:WS66S7IC

pith:2011:WS66S7ICXGEBLOWVWGAHYIDAE3

not attested not anchored not stored refs pending

The first (nearly) model-independent constraint on the neutral hydrogen fraction at z~5--6

Andrei Mesinger (Princeton), Ian D. McGreer (Arizona), Xiaohui Fan (Arizona)

arxiv:1101.3314 v1 · 2011-01-17 · 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{WS66S7ICXGEBLOWVWGAHYIDAE3}

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.

Cited by

1 paper in Pith

Machine Learning Techniques for Astrophysics and Cosmology: Lyman-$\alpha$ forest

Receipt and verification

First computed	2026-05-18T02:03:38.959770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4bde97d02b98815bad5b1807c206026cfa2d54a90ec1330e27ac1bdcd23dfff

Aliases

arxiv: 1101.3314 · arxiv_version: 1101.3314v1 · doi: 10.48550/arxiv.1101.3314 · pith_short_12: WS66S7ICXGEB · pith_short_16: WS66S7ICXGEBLOWV · pith_short_8: WS66S7IC

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/WS66S7ICXGEBLOWVWGAHYIDAE3 \
  | 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: b4bde97d02b98815bad5b1807c206026cfa2d54a90ec1330e27ac1bdcd23dfff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5ed9300ad5589871004e04a6c194ff70c42211b94b91b6c558650c0a0b4b60e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-17T21:00:02Z",
    "title_canon_sha256": "b6b6c3e838656bafec870969db0060bc730b414980dc26a51adf2ee4db6d368c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3314",
    "kind": "arxiv",
    "version": 1
  }
}