Pith Number

pith:US2X3YZB

pith:1994:US2X3YZBFSHHIVWB7Z3UYJK6OU

not attested not anchored not stored refs pending

How Well Can Cosmological Parameters Be Estimated from CMB Observations?

J. Richard Bond, Paul J. Steinhardt, Richard L. Davis

arxiv:astro-ph/9402041 v1 · 1994-02-16 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{US2X3YZBFSHHIVWB7Z3UYJK6OU}

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	2026-07-04T15:50:36.728521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4b57de3212c8e7456c1fe774c255e7538759d283f35c47f9f88cc5e34f85a77

Aliases

arxiv: astro-ph/9402041 · arxiv_version: astro-ph/9402041v1 · doi: 10.48550/arxiv.astro-ph/9402041 · pith_short_12: US2X3YZBFSHH · pith_short_16: US2X3YZBFSHHIVWB · pith_short_8: US2X3YZB

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/US2X3YZBFSHHIVWB7Z3UYJK6OU \
  | 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: a4b57de3212c8e7456c1fe774c255e7538759d283f35c47f9f88cc5e34f85a77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "421117f783e60db19a8f8af6fc9293fa2fe411ec3bc8735b7b62287a51ce5a31",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-02-16T15:08:00Z",
    "title_canon_sha256": "0006ded1dd6738e61e0d4efb57effbd0575f1eeeab5cb74030b424d9d50cc959"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9402041",
    "kind": "arxiv",
    "version": 1
  }
}