Pith Number

pith:6UKGCBQE

pith:2005:6UKGCBQEC2YKV36SGUGXMIZIKC

not attested not anchored not stored refs pending

Fundamental Physical Constants: Looking from Different Angles

Garching), Max-Planck-Institut fur Quantenoptik, Savely G. Karshenboim (D. I. Mendeleev Institute for Metrology, St. Petersburg

arxiv:physics/0506173 v2 · 2005-06-22 · physics.atom-ph · 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{6UKGCBQEC2YKV36SGUGXMIZIKC}

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	2026-05-18T02:35:07.317873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f51461060416b0aaefd2350d76232850be396cafcf22f3381317d8fa14f2d4dd

Aliases

arxiv: physics/0506173 · arxiv_version: physics/0506173v2 · doi: 10.48550/arxiv.physics/0506173 · pith_short_12: 6UKGCBQEC2YK · pith_short_16: 6UKGCBQEC2YKV36S · pith_short_8: 6UKGCBQE

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/6UKGCBQEC2YKV36SGUGXMIZIKC \
  | 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: f51461060416b0aaefd2350d76232850be396cafcf22f3381317d8fa14f2d4dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f062e7894b53a7d0142de03827b61023868b4b09f1a203a0bb71fd82730ebf9a",
    "cross_cats_sorted": [
      "physics.gen-ph"
    ],
    "license": "",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2005-06-22T13:38:44Z",
    "title_canon_sha256": "3ff1b7983cd3382256ae542a99d43ad2177a5601f6af36c0a96faf4b85bdd8b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0506173",
    "kind": "arxiv",
    "version": 2
  }
}