Pith Number

pith:NI6ZEWIP

pith:2002:NI6ZEWIP32VFXA6E4S6UTDIYV5

not attested not anchored not stored refs pending

Small-Scale Cosmic Microwave Background Polarization from Reionization

Asantha Cooray, Daniel Baumann (Cambridge), Marc Kamionkowski (Caltech)

arxiv:astro-ph/0208511 v1 · 2002-08-28 · astro-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NI6ZEWIP32VFXA6E4S6UTDIYV5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:07:44.545630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a3d92590fdeaa5b83c4e4bd498d18af61ce37e76aee748c8c289b3bc8012c44

Aliases

arxiv: astro-ph/0208511 · arxiv_version: astro-ph/0208511v1 · doi: 10.48550/arxiv.astro-ph/0208511 · pith_short_12: NI6ZEWIP32VF · pith_short_16: NI6ZEWIP32VFXA6E · pith_short_8: NI6ZEWIP

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/NI6ZEWIP32VFXA6E4S6UTDIYV5 \
  | 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: 6a3d92590fdeaa5b83c4e4bd498d18af61ce37e76aee748c8c289b3bc8012c44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "383427a1b21a036201898f5b10c89c496c10b65f699d6f30ef802dc619612eb8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-28T20:00:38Z",
    "title_canon_sha256": "9a2f27fa0fb25f0348bba96c714170252ab7e0db77157ce7fb2ead4ffa61d6f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208511",
    "kind": "arxiv",
    "version": 1
  }
}