Pith Number

pith:IDNA6YUZ

pith:1993:IDNA6YUZSR7YFGAC222OPHN3IC

not attested not anchored not stored refs pending

Measuring Cosmological Parameters with Cosmic Microwave Background Experiments

George Efstathiou, J. R. Bond, Paul J. Steinhardt, Richard L. Davis, Robert Crittenden

arxiv:astro-ph/9309041 v2 · 1993-09-28 · 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{IDNA6YUZSR7YFGAC222OPHN3IC}

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	2026-07-04T15:18:32.792449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40da0f6299947f829802d6b4e79dbb40b4984aae38155faf7a50cd26615de5ce

Aliases

arxiv: astro-ph/9309041 · arxiv_version: astro-ph/9309041v2 · doi: 10.48550/arxiv.astro-ph/9309041 · pith_short_12: IDNA6YUZSR7Y · pith_short_16: IDNA6YUZSR7YFGAC · pith_short_8: IDNA6YUZ

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/IDNA6YUZSR7YFGAC222OPHN3IC \
  | 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: 40da0f6299947f829802d6b4e79dbb40b4984aae38155faf7a50cd26615de5ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "805bb2abad5c43efb8e03cb24950c191c6086f720a5d3388769e77b25558d2ad",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1993-09-28T04:44:49Z",
    "title_canon_sha256": "cceb4fe5ef61238d35ce0eae30ee25a94a58fa87e9afa91ee9d9d7b96008a50c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9309041",
    "kind": "arxiv",
    "version": 2
  }
}