Pith Number

pith:ASNQPIDL

pith:2009:ASNQPIDLKMYEGC7WQPXBT3CEZV

not attested not anchored not stored refs pending

Was reionization complete by z ~ 5-6?

Andrei Mesinger

arxiv:0910.4161 v1 · 2009-10-22 · 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{ASNQPIDLKMYEGC7WQPXBT3CEZV}

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	2026-05-18T02:11:13.105501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

049b07a06b5330430bf683ee19ec44cd5ca4809c827fd2ca7d02bf2d759a7184

Aliases

arxiv: 0910.4161 · arxiv_version: 0910.4161v1 · doi: 10.48550/arxiv.0910.4161 · pith_short_12: ASNQPIDLKMYE · pith_short_16: ASNQPIDLKMYEGC7W · pith_short_8: ASNQPIDL

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/ASNQPIDLKMYEGC7WQPXBT3CEZV \
  | 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: 049b07a06b5330430bf683ee19ec44cd5ca4809c827fd2ca7d02bf2d759a7184

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffc574f3f30f2921c2cba5e683315fa0f7d330de1b2149b2c1797821b854a575",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-22T06:16:56Z",
    "title_canon_sha256": "1e02f06fd731cdca11819e7e6486dd18fa82493714705feb08c17c92f8f745da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4161",
    "kind": "arxiv",
    "version": 1
  }
}