Pith Number

pith:3DYCLCP3

pith:2013:3DYCLCP3HYCZVWHSOAJDCN6K5R

not attested not anchored not stored refs pending

Limits on the spatial variations of the electron-to-proton mass ratio in the Galactic plane

A. Mignano, B. Winkel, C. Henkel, D. Reimers, M. Centurion, P. Molaro, S. A. Levshakov

arxiv:1310.1850 v1 · 2013-10-07 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3DYCLCP3HYCZVWHSOAJDCN6K5R}

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	2026-05-18T01:47:14.382425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8f02589fb3e059ad8f270123137caec5c4f20614dadd244619f1a32027f1771

Aliases

arxiv: 1310.1850 · arxiv_version: 1310.1850v1 · doi: 10.48550/arxiv.1310.1850 · pith_short_12: 3DYCLCP3HYCZ · pith_short_16: 3DYCLCP3HYCZVWHS · pith_short_8: 3DYCLCP3

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/3DYCLCP3HYCZVWHSOAJDCN6K5R \
  | 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: d8f02589fb3e059ad8f270123137caec5c4f20614dadd244619f1a32027f1771

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16bb091caac8f256da2862c83f23e93ef9eb075d341efd279efb0c84a0db279a",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-10-07T16:25:59Z",
    "title_canon_sha256": "c9aaaa65232142ce9fc1b1ee00fed1f17d3c13fca3090bf63ff71763f209c6e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1850",
    "kind": "arxiv",
    "version": 1
  }
}