Pith Number

pith:FTJ5FIU6

pith:2002:FTJ5FIU6FXNGYPPUKKHRX7G5CJ

not attested not anchored not stored refs pending

Separating the Early Universe from the Late Universe: cosmological parameter estimation beyond the black box

Matias Zaldarriaga, Max Tegmark

arxiv:astro-ph/0207047 v3 · 2002-07-02 · 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{FTJ5FIU6FXNGYPPUKKHRX7G5CJ}

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

Dark Matter

Receipt and verification

First computed	2026-07-04T15:53:44.606727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cd3d2a29e2dda6c3df4528f1bfcdd1276012d108ea7f7a72528e655c8b130c8

Aliases

arxiv: astro-ph/0207047 · arxiv_version: astro-ph/0207047v3 · doi: 10.48550/arxiv.astro-ph/0207047 · pith_short_12: FTJ5FIU6FXNG · pith_short_16: FTJ5FIU6FXNGYPPU · pith_short_8: FTJ5FIU6

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/FTJ5FIU6FXNGYPPUKKHRX7G5CJ \
  | 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: 2cd3d2a29e2dda6c3df4528f1bfcdd1276012d108ea7f7a72528e655c8b130c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c90b9d31a9c9b3781fd1e9d3ec1d3ee3d6edaa20d908ba4c6db557d52043375",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-07-02T19:08:42Z",
    "title_canon_sha256": "67b3a36aef860ff5212db3ca542f8391589ce607ebfe83ca8a5e3921798972cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0207047",
    "kind": "arxiv",
    "version": 3
  }
}