Pith Number

pith:CRHGA4XF

pith:2018:CRHGA4XFQIN3F24Y6FGIG6UU6W

not attested not anchored not stored refs pending

Gravitational clock compass in General Relativity

Claus L\"ammerzahl, Dirk Puetzfeld, Yuri N. Obukhov

arxiv:1805.10673 v2 · 2018-05-27 · 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{CRHGA4XFQIN3F24Y6FGIG6UU6W}

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	2026-05-18T00:09:52.223493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

144e6072e5821bb2eb98f14c837a94f5b7de72283025d7eb284f3de28cba21ae

Aliases

arxiv: 1805.10673 · arxiv_version: 1805.10673v2 · doi: 10.48550/arxiv.1805.10673 · pith_short_12: CRHGA4XFQIN3 · pith_short_16: CRHGA4XFQIN3F24Y · pith_short_8: CRHGA4XF

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/CRHGA4XFQIN3F24Y6FGIG6UU6W \
  | 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: 144e6072e5821bb2eb98f14c837a94f5b7de72283025d7eb284f3de28cba21ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51f37dfb127a83890e776391cd0968238cdfef4407f43ede58617370a4b8f34b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-27T18:27:36Z",
    "title_canon_sha256": "d22e88a52c9f3a7bda3dc0b387a268173af41efd90f594fedc5981da0168eabc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.10673",
    "kind": "arxiv",
    "version": 2
  }
}