Pith Number

pith:WVHPXZPZ

pith:2016:WVHPXZPZDOG6ZCV3G54TL3KFJ2

not attested not anchored not stored refs pending

Testing the wavelength dependence of cosmological redshift down to $\Delta z \sim 10^{-6}$

I. Ferreras, I. Trujillo

arxiv:1605.09380 v1 · 2016-05-30 · astro-ph.CO · astro-ph.GA · 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{WVHPXZPZDOG6ZCV3G54TL3KFJ2}

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	2026-05-18T01:10:47.424571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b54efbe5f91b8dec8abb377935ed454ea890575b767ba9bc8f187d349ae20598

Aliases

arxiv: 1605.09380 · arxiv_version: 1605.09380v1 · doi: 10.48550/arxiv.1605.09380 · pith_short_12: WVHPXZPZDOG6 · pith_short_16: WVHPXZPZDOG6ZCV3 · pith_short_8: WVHPXZPZ

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/WVHPXZPZDOG6ZCV3G54TL3KFJ2 \
  | 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: b54efbe5f91b8dec8abb377935ed454ea890575b767ba9bc8f187d349ae20598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f21a4f10cef3c724f329a6d3daf82e608822016f2630628a1b6813144cd35fc",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-05-30T20:00:01Z",
    "title_canon_sha256": "dc88915206052c9a3099701ed9d14070ed35c9687015b169ae49a0d01a3dac11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.09380",
    "kind": "arxiv",
    "version": 1
  }
}