Pith Number

pith:I2RRJYJV

pith:2017:I2RRJYJV7H32LB5OR7ZRMQ7HQP

not attested not anchored not stored refs pending

The duration of reionization constrains the ionizing sources

Carlos Frenk (ICC Durham), Mahavir Sharma, Tom Theuns

arxiv:1712.06619 v2 · 2017-12-18 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2RRJYJV7H32LB5OR7ZRMQ7HQP}

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

The Lumina Project: CMB Optical Depth Fluctuations from Patchy Reionization

Receipt and verification

First computed	2026-05-18T00:18:52.606562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46a314e135f9f7a587ae8ff31643e783d6d9cff47bd07d06af131647ed78262d

Aliases

arxiv: 1712.06619 · arxiv_version: 1712.06619v2 · doi: 10.48550/arxiv.1712.06619 · pith_short_12: I2RRJYJV7H32 · pith_short_16: I2RRJYJV7H32LB5O · pith_short_8: I2RRJYJV

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/I2RRJYJV7H32LB5OR7ZRMQ7HQP \
  | 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: 46a314e135f9f7a587ae8ff31643e783d6d9cff47bd07d06af131647ed78262d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "415064031b090ca0e9936c0edd93b3d91f016726409a2ef113cf2075fe2528f7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-12-18T19:02:53Z",
    "title_canon_sha256": "1b879707384536fae92d1f952634bd14d1d7691aafe24fbd9b9b533f0f7293a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.06619",
    "kind": "arxiv",
    "version": 2
  }
}