Pith Number

pith:U2AT2O3A

pith:2013:U2AT2O3AV7PDZ5FNGWVCMNOKUO

not attested not anchored not stored refs pending

Planck constant as adiabatic invariant characterized by Hubble's and cosmological constants

A. Lipovka

arxiv:1401.2404 v4 · 2013-11-27 · physics.gen-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{U2AT2O3AV7PDZ5FNGWVCMNOKUO}

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	2026-05-18T01:17:10.484977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6813d3b60afde3cf4ad35aa2635caa392d87c6fab2ca4f765b9ae10bb2daf10

Aliases

arxiv: 1401.2404 · arxiv_version: 1401.2404v4 · doi: 10.48550/arxiv.1401.2404 · pith_short_12: U2AT2O3AV7PD · pith_short_16: U2AT2O3AV7PDZ5FN · pith_short_8: U2AT2O3A

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/U2AT2O3AV7PDZ5FNGWVCMNOKUO \
  | 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: a6813d3b60afde3cf4ad35aa2635caa392d87c6fab2ca4f765b9ae10bb2daf10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bbed44e3b1342fcccb7903b1c37f38f7086fb28552b6e717ff69aa72625f28a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2013-11-27T06:38:02Z",
    "title_canon_sha256": "aaf8c0fdfa9fd54f90a202823bc197fd28d12ad0aa55ce6017afd6965a445b27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2404",
    "kind": "arxiv",
    "version": 4
  }
}