Pith Number

pith:QCCGXM26

pith:2003:QCCGXM26NJ6AUVB3GWV6E7OHDM

not attested not anchored not stored refs pending

The Reionization History at High Redshifts I: Physical Models and New Constraints from CMB Polarization

Gilbert P. Holder (IAS), Zoltan Haiman (Columbia University)

arxiv:astro-ph/0302403 v2 · 2003-02-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QCCGXM26NJ6AUVB3GWV6E7OHDM}

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	2026-07-04T16:36:31.330853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80846bb35e6a7c0a543b35abe27dc71b177d396ce932f1bffd6769d5587c49d0

Aliases

arxiv: astro-ph/0302403 · arxiv_version: astro-ph/0302403v2 · doi: 10.48550/arxiv.astro-ph/0302403 · pith_short_12: QCCGXM26NJ6A · pith_short_16: QCCGXM26NJ6AUVB3 · pith_short_8: QCCGXM26

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/QCCGXM26NJ6AUVB3GWV6E7OHDM \
  | 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: 80846bb35e6a7c0a543b35abe27dc71b177d396ce932f1bffd6769d5587c49d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3d3f2d99850ebb8e589f6eb55139dd2a45d38820ec14eb6590670bc8d1d5626",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-20T20:49:46Z",
    "title_canon_sha256": "fdc76ab39695c9819077a66bb079816bcdd7483537aa40f3dd4ea2618a9ff6a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302403",
    "kind": "arxiv",
    "version": 2
  }
}