Pith Number

pith:AZAPBTZS

pith:2002:AZAPBTZSH5NIAECPAE3TK7K4PD

not attested not anchored not stored refs pending

Precision Optical Measurements and Fundamental Physical Constants

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

arxiv:physics/0201050 v1 · 2002-01-25 · physics.atom-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{AZAPBTZSH5NIAECPAE3TK7K4PD}

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	2026-07-04T14:43:34.774144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0640f0cf323f5a80104f0137357d5c78d0f64d70cd0a0f8bb304c90bfbfed221

Aliases

arxiv: physics/0201050 · arxiv_version: physics/0201050v1 · doi: 10.48550/arxiv.physics/0201050 · pith_short_12: AZAPBTZSH5NI · pith_short_16: AZAPBTZSH5NIAECP · pith_short_8: AZAPBTZS

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/AZAPBTZSH5NIAECPAE3TK7K4PD \
  | 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: 0640f0cf323f5a80104f0137357d5c78d0f64d70cd0a0f8bb304c90bfbfed221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d659a6a47173d9079eec97d6316de52fe6b038fefecd0e8b03ef432f7287980b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2002-01-25T11:50:45Z",
    "title_canon_sha256": "09f4541a3747c6f3eddf2f5e41b31e53516388165ac70633ed486e5e893cc047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0201050",
    "kind": "arxiv",
    "version": 1
  }
}