Pith Number

pith:VRSZMUKQ

pith:2000:VRSZMUKQPZPIZNVFHR6YLIFSL7

not attested not anchored not stored refs pending

The Cosmic Microwave Background Radiation

Eric Gawiser, Joseph Silk

arxiv:astro-ph/0002044 v1 · 2000-02-02 · 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{VRSZMUKQPZPIZNVFHR6YLIFSL7}

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	2026-07-04T16:16:00.513808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac659651507e5e8cb6a53c7d85a0b25fdb8e6a1695ad1ce4cd5ec7ec79b32e03

Aliases

arxiv: astro-ph/0002044 · arxiv_version: astro-ph/0002044v1 · doi: 10.48550/arxiv.astro-ph/0002044 · pith_short_12: VRSZMUKQPZPI · pith_short_16: VRSZMUKQPZPIZNVF · pith_short_8: VRSZMUKQ

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/VRSZMUKQPZPIZNVFHR6YLIFSL7 \
  | 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: ac659651507e5e8cb6a53c7d85a0b25fdb8e6a1695ad1ce4cd5ec7ec79b32e03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b9efd106bed7788df9828c34a0ba99e8f247c4104b2c18b9b8a92fa9b844ffe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-02T07:51:59Z",
    "title_canon_sha256": "50ad6dcdab5bac473f03bd7eca6419a40e24b6794e34f74cd14cb2455bf99670"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002044",
    "kind": "arxiv",
    "version": 1
  }
}