Pith Number

pith:GF5PGYVD

pith:2016:GF5PGYVDEUDN633Q5LUYKP7ZBM

not attested not anchored not stored refs pending

Constraining spatial variations of the fine structure constant using clusters of galaxies and Planck data

C.J.A.P. Martins, D. Kocevski, H. Ebeling, I. De Martino

arxiv:1605.03053 v3 · 2016-05-10 · astro-ph.CO · 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{GF5PGYVDEUDN633Q5LUYKP7ZBM}

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	2026-05-18T01:00:45.611067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

317af362a32506df6f70eae9853ff90b1340ddfd4918f2ac8a2f91fb0f13cb30

Aliases

arxiv: 1605.03053 · arxiv_version: 1605.03053v3 · doi: 10.48550/arxiv.1605.03053 · pith_short_12: GF5PGYVDEUDN · pith_short_16: GF5PGYVDEUDN633Q · pith_short_8: GF5PGYVD

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/GF5PGYVDEUDN633Q5LUYKP7ZBM \
  | 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: 317af362a32506df6f70eae9853ff90b1340ddfd4918f2ac8a2f91fb0f13cb30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99c8dd158aa5957fd6ec5b33f0fad8e4eedaef2f626f86b2ebda8585f7acbcde",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-05-10T15:21:57Z",
    "title_canon_sha256": "2af57f7c667630aca3266ef065cefe73bb72376c04cf9c6f98f9136dc83ecb8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03053",
    "kind": "arxiv",
    "version": 3
  }
}