Pith Number

pith:J5VMATMD

pith:2003:J5VMATMDYZIEHH5WD3RDVCX5DT

not attested not anchored not stored refs pending

The Polarization of the Cosmic Microwave Background

Matias Zaldarriaga

arxiv:astro-ph/0305272 v2 · 2003-05-15 · 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{J5VMATMDYZIEHH5WD3RDVCX5DT}

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	2026-07-04T14:12:43.696188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f6ac04d83c650439fb61ee23a8afd1cd4699725d66f08fea67ec7c49f2cd193

Aliases

arxiv: astro-ph/0305272 · arxiv_version: astro-ph/0305272v2 · doi: 10.48550/arxiv.astro-ph/0305272 · pith_short_12: J5VMATMDYZIE · pith_short_16: J5VMATMDYZIEHH5W · pith_short_8: J5VMATMD

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/J5VMATMDYZIEHH5WD3RDVCX5DT \
  | 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: 4f6ac04d83c650439fb61ee23a8afd1cd4699725d66f08fea67ec7c49f2cd193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "182dc5f5cb716b010c5fc0d9883b1c114194933a377e43c8411363d6f6ad93ed",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-15T13:53:09Z",
    "title_canon_sha256": "779167209ba56809becea6d4ff64c04620507eb49dc8072f7fd9865fc383e408"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305272",
    "kind": "arxiv",
    "version": 2
  }
}