Pith Number

pith:QEEK2NW2

pith:2003:QEEK2NW2LMC6NHC3P5S7HKRNHK

not attested not anchored not stored refs pending

The First Nonlinear Structures and the Reionization History of the Universe

Zoltan Haiman (Columbia University)

arxiv:astro-ph/0304131 v1 · 2003-04-07 · 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{QEEK2NW2LMC6NHC3P5S7HKRNHK}

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	2026-07-04T14:12:40.852854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8108ad36da5b05e69c5b7f65f3aa2d3aa4b21876621ef81d27a7bed1192c5664

Aliases

arxiv: astro-ph/0304131 · arxiv_version: astro-ph/0304131v1 · doi: 10.48550/arxiv.astro-ph/0304131 · pith_short_12: QEEK2NW2LMC6 · pith_short_16: QEEK2NW2LMC6NHC3 · pith_short_8: QEEK2NW2

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/QEEK2NW2LMC6NHC3P5S7HKRNHK \
  | 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: 8108ad36da5b05e69c5b7f65f3aa2d3aa4b21876621ef81d27a7bed1192c5664

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6d2941d1255138a102e9164f276d4b9b222dfb72926764b89a7139ec0fbaf5c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-07T23:04:48Z",
    "title_canon_sha256": "ec8de3859ede553686765096fb0b6f29aa59d2146c3b5ce9d22f8dd334d4c9db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304131",
    "kind": "arxiv",
    "version": 1
  }
}