Pith Number

pith:N3P6J32I

pith:2002:N3P6J32IVCH7W63T7ZKLBQBTWB

not attested not anchored not stored refs pending

The large-scale polarization of the microwave background and foreground

Angelica de Oliveira-Costa, Brian Keating, Chris O'Dell, George Efstathiou, George Smoot, Max Tegmark, Peter Timbie

arxiv:astro-ph/0212419 v4 · 2002-12-19 · 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{N3P6J32IVCH7W63T7ZKLBQBTWB}

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	2026-07-04T15:22:58.455443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6edfe4ef48a88ffb7b73fe54b0c033b0591e0e98fad002b2ad750b23d8c518cd

Aliases

arxiv: astro-ph/0212419 · arxiv_version: astro-ph/0212419v4 · doi: 10.48550/arxiv.astro-ph/0212419 · pith_short_12: N3P6J32IVCH7 · pith_short_16: N3P6J32IVCH7W63T · pith_short_8: N3P6J32I

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/N3P6J32IVCH7W63T7ZKLBQBTWB \
  | 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: 6edfe4ef48a88ffb7b73fe54b0c033b0591e0e98fad002b2ad750b23d8c518cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6fe455a54bf209eb05fd2fdbda5aff29653f89a73e4f31c988037697762870a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-19T20:49:34Z",
    "title_canon_sha256": "8a2c41d4b6d49f9f2e5afcfe923ce78e823c9daac72f17f9016d35a24c2bff41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212419",
    "kind": "arxiv",
    "version": 4
  }
}