Pith Number

pith:VJ4K7LN5

pith:2011:VJ4K7LN5UXTY5FCAULTUSWQ22R

not attested not anchored not stored refs pending

Improved measurements of the intergalactic medium temperature around quasars: possible evidence for the initial stages of He-II reionisation at z~6

(2) KICC/IoA Cambridge, (3) Caltech), George D. Becker (2), James S. Bolton (1), J. Stuart B. Wyithe (1), Martin G. Haehnelt (2), Sudhir Raskutti (1), Wallace L.W. Sargent (3) ((1) Melbourne

arxiv:1110.0539 v1 · 2011-10-03 · 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{VJ4K7LN5UXTY5FCAULTUSWQ22R}

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	2026-05-18T01:05:46.764341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa78afadbda5e78e9440a2e7495a1ad45345654f3d092e8b7e2789aa586a43ea

Aliases

arxiv: 1110.0539 · arxiv_version: 1110.0539v1 · doi: 10.48550/arxiv.1110.0539 · pith_short_12: VJ4K7LN5UXTY · pith_short_16: VJ4K7LN5UXTY5FCA · pith_short_8: VJ4K7LN5

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/VJ4K7LN5UXTY5FCAULTUSWQ22R \
  | 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: aa78afadbda5e78e9440a2e7495a1ad45345654f3d092e8b7e2789aa586a43ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e5cb8ad2308ac6bdbc64970f1579f6de3cd9251764506a3413e4e5cd4257c40",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-10-03T23:06:22Z",
    "title_canon_sha256": "2bd70b7742b9423cc0e0214f8f0b0243047cad95b77672f3a28564035c83f9b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.0539",
    "kind": "arxiv",
    "version": 1
  }
}