Pith Number

pith:FKQRLR33

pith:2011:FKQRLR33WASAP4SLYUT6JMJFN4

not attested not anchored not stored refs pending

The Shocking Truth: The small contribution to hydrogen reionization from gravitational infall

Abraham Loeb, Jeremy Mould, Stuart Wyithe

arxiv:1108.5809 v1 · 2011-08-30 · 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{FKQRLR33WASAP4SLYUT6JMJFN4}

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	2026-05-18T02:00:44.939195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2aa115c77bb02407f24bc527e4b1256f3901ac1083d022e68e22ed7709567be6

Aliases

arxiv: 1108.5809 · arxiv_version: 1108.5809v1 · doi: 10.48550/arxiv.1108.5809 · pith_short_12: FKQRLR33WASA · pith_short_16: FKQRLR33WASAP4SL · pith_short_8: FKQRLR33

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/FKQRLR33WASAP4SLYUT6JMJFN4 \
  | 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: 2aa115c77bb02407f24bc527e4b1256f3901ac1083d022e68e22ed7709567be6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abb8aa25f12a1ed24cca7e94ccdbf83f5548e22d3f9f39744b3887bb4001873f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-30T03:15:43Z",
    "title_canon_sha256": "dc3cfbacf533ced094654a28622271864ad4a67fa0e429ad8ff3f55ef926bbe7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5809",
    "kind": "arxiv",
    "version": 1
  }
}