Pith Number

pith:YVUFMD2S

pith:2019:YVUFMD2STZ2ECISNCVHKMFMRKW

not attested not anchored not stored refs pending

Felix Klein's "Zu Hilberts erster Note \"uber die Grundlagen der Physik": an English translation

Chiang-Mei Chen, James M. Nester, Walter Vogel

arxiv:1912.12158 v1 · 2019-12-27 · physics.hist-ph · 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{YVUFMD2STZ2ECISNCVHKMFMRKW}

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	2026-07-05T00:28:40.744044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c568560f529e7441224d154ea61591559ca48c62a47f236e3097c841af62a13d

Aliases

arxiv: 1912.12158 · arxiv_version: 1912.12158v1 · doi: 10.48550/arxiv.1912.12158 · pith_short_12: YVUFMD2STZ2E · pith_short_16: YVUFMD2STZ2ECISN · pith_short_8: YVUFMD2S

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/YVUFMD2STZ2ECISNCVHKMFMRKW \
  | 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: c568560f529e7441224d154ea61591559ca48c62a47f236e3097c841af62a13d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc1071c9b532dd19e083b07610868fc6e67a5621b7f6ac4696013ef3be906a08",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2019-12-27T15:36:15Z",
    "title_canon_sha256": "5c3aebe073c907a734e63f4c4d0d43ab28a3e3107eda38aa7695dbafcad530da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.12158",
    "kind": "arxiv",
    "version": 1
  }
}