Pith Number

pith:5ZTFZGGK

pith:2008:5ZTFZGGKPZB5BNEMISP4QRKNV5

not attested not anchored not stored refs pending

The R.I. Pimenov unified gravitation and electromagnetism field theory as semi-Riemannian geometry

N.A. Gromov

arxiv:0810.0349 v1 · 2008-10-02 · 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{5ZTFZGGKPZB5BNEMISP4QRKNV5}

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	2026-05-18T04:35:05.636580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee665c98ca7e43d0b48c449fc8454daf45c12fe9a597afd34d955d852f54390d

Aliases

arxiv: 0810.0349 · arxiv_version: 0810.0349v1 · doi: 10.48550/arxiv.0810.0349 · pith_short_12: 5ZTFZGGKPZB5 · pith_short_16: 5ZTFZGGKPZB5BNEM · pith_short_8: 5ZTFZGGK

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/5ZTFZGGKPZB5BNEMISP4QRKNV5 \
  | 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: ee665c98ca7e43d0b48c449fc8454daf45c12fe9a597afd34d955d852f54390d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7f2f9594b135846c13e782bbfa3cbc806d24d443dab9f760d6c49a00c69bbe2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-10-02T08:02:04Z",
    "title_canon_sha256": "e4b414d48507df23dd2767ea4a10fc2a709db750c7875e4752c5fde11b24e6a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.0349",
    "kind": "arxiv",
    "version": 1
  }
}