Pith Number

pith:Z7STAX2M

pith:2005:Z7STAX2MCOY3RZHT2NQKAVNM4I

not attested not anchored not stored refs pending

Constraints on the Sum of Neutrino Masses from Cosmology and their impact on world neutrino data

A. Marrone, A. Melchiorri, A.Palazzo, E. Lisi, G.L. Fogli, J. I. Silk, P. Serra

arxiv:astro-ph/0501531 v1 · 2005-01-25 · 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{Z7STAX2MCOY3RZHT2NQKAVNM4I}

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	2026-07-04T15:53:45.368907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfe5305f4c13b1b8e4f3d360a055ace2384884c7e9c864f7e9c3b0ee6e214569

Aliases

arxiv: astro-ph/0501531 · arxiv_version: astro-ph/0501531v1 · doi: 10.48550/arxiv.astro-ph/0501531 · pith_short_12: Z7STAX2MCOY3 · pith_short_16: Z7STAX2MCOY3RZHT · pith_short_8: Z7STAX2M

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/Z7STAX2MCOY3RZHT2NQKAVNM4I \
  | 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: cfe5305f4c13b1b8e4f3d360a055ace2384884c7e9c864f7e9c3b0ee6e214569

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "435b814d3e2dbe9ca55bd2dc313db346ceb980c0827814c17eee27154be8bab3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-01-25T10:47:00Z",
    "title_canon_sha256": "f2978723c45f47f5e4fc18df4dc73109d5f930dfdc039db187302dfc2d1610e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0501531",
    "kind": "arxiv",
    "version": 1
  }
}