Pith Number

pith:MTQTUZ7B

pith:1999:MTQTUZ7BCT5ZRBCEP3VQKZB4LZ

not attested not anchored not stored refs pending

Are you sure that the anisotropies in the microwave background radiation are really cosmological rather than purely Galactic in origin?

M. Lopez-Corredoira

arxiv:astro-ph/9903460 v2 · 1999-03-30 · 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{MTQTUZ7BCT5ZRBCEP3VQKZB4LZ}

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	2026-05-18T04:21:32.317297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64e13a67e114fb9884447eeb05643c5e41da8369ec116d425aa1ad4fb4d85a8c

Aliases

arxiv: astro-ph/9903460 · arxiv_version: astro-ph/9903460v2 · doi: 10.48550/arxiv.astro-ph/9903460 · pith_short_12: MTQTUZ7BCT5Z · pith_short_16: MTQTUZ7BCT5ZRBCE · pith_short_8: MTQTUZ7B

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/MTQTUZ7BCT5ZRBCEP3VQKZB4LZ \
  | 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: 64e13a67e114fb9884447eeb05643c5e41da8369ec116d425aa1ad4fb4d85a8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa366b99bbaa4ccf8413a6b4cb58fc2cc5d0ddb1fdea8f508a8ed7dcb6adf547",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-30T17:38:10Z",
    "title_canon_sha256": "a3b619e544e291a97b465f12e3c35caea63affa2f00d065206ce96213a6f39e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903460",
    "kind": "arxiv",
    "version": 2
  }
}