Pith Number

pith:Z4GQW7X7

pith:2015:Z4GQW7X7O2RRUCFBE727SKZWSD

not attested not anchored not stored refs pending

Weighing neutrinos with cosmic neutral hydrogen

Francisco Villaescusa-Navarro, Matteo Viel, Philip Bull

arxiv:1507.05102 v2 · 2015-07-17 · astro-ph.CO · hep-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{Z4GQW7X7O2RRUCFBE727SKZWSD}

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	2026-05-18T01:24:53.903775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf0d0b7eff76a31a08a127f5f92b3690f241a70ed050b2e0d3b3c16f716af136

Aliases

arxiv: 1507.05102 · arxiv_version: 1507.05102v2 · doi: 10.48550/arxiv.1507.05102 · pith_short_12: Z4GQW7X7O2RR · pith_short_16: Z4GQW7X7O2RRUCFB · pith_short_8: Z4GQW7X7

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/Z4GQW7X7O2RRUCFBE727SKZWSD \
  | 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: cf0d0b7eff76a31a08a127f5f92b3690f241a70ed050b2e0d3b3c16f716af136

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfd238d39cc4eb7b01ade4aeca588e5265f7e1269bbb90796cf658b537d8cacd",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-07-17T20:10:16Z",
    "title_canon_sha256": "689b0b998ee6b0e3f42a9a025836ca03fc78784a8ef5c1ce4992748bf1dcf4ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05102",
    "kind": "arxiv",
    "version": 2
  }
}