Pith Number

pith:JWQULRZM

pith:2004:JWQULRZM3W7OCMI5AOLASNSB6V

not attested not anchored not stored refs pending

Constraints On The Topology Of The Universe From The WMAP First-Year Sky Maps

A. Kogut, N. G. Phillips

arxiv:astro-ph/0404400 v1 · 2004-04-20 · 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{JWQULRZM3W7OCMI5AOLASNSB6V}

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	2026-07-04T16:43:36.932115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4da145c72cddbee1311d0396093641f57c7a169301187d571e0b95c0f0a5fa4b

Aliases

arxiv: astro-ph/0404400 · arxiv_version: astro-ph/0404400v1 · doi: 10.48550/arxiv.astro-ph/0404400 · pith_short_12: JWQULRZM3W7O · pith_short_16: JWQULRZM3W7OCMI5 · pith_short_8: JWQULRZM

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/JWQULRZM3W7OCMI5AOLASNSB6V \
  | 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: 4da145c72cddbee1311d0396093641f57c7a169301187d571e0b95c0f0a5fa4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fecd8706ceee29ec2ee97c5f8ce34f1d33483044fb36f5f7a37be07c5bdcac5a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-20T20:35:23Z",
    "title_canon_sha256": "501d0b356cbe314154564ca84fe38bf112497822253321ea86cf89c90fca100c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404400",
    "kind": "arxiv",
    "version": 1
  }
}