Pith Number

pith:VCAMD6Q2

pith:1997:VCAMD6Q25VDLLDI4HJHXGNW7OE

not attested not anchored not stored refs pending

Constraints on Space-Time Torsion from Hughes-Drever Experiments

Claus L\"ammerzahl

arxiv:gr-qc/9704047 v1 · 1997-04-16 · 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{VCAMD6Q25VDLLDI4HJHXGNW7OE}

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.

Cited by

1 paper in Pith

Tidal Forces in the Presence of Torsion and Nonmetricity

Receipt and verification

First computed	2026-07-04T16:04:37.195179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a880c1fa1aed46b58d1c3a4f7336df71151a7543bff2e7e83ed7f97daf85ea03

Aliases

arxiv: gr-qc/9704047 · arxiv_version: gr-qc/9704047v1 · doi: 10.48550/arxiv.gr-qc/9704047 · pith_short_12: VCAMD6Q25VDL · pith_short_16: VCAMD6Q25VDLLDI4 · pith_short_8: VCAMD6Q2

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/VCAMD6Q25VDLLDI4HJHXGNW7OE \
  | 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: a880c1fa1aed46b58d1c3a4f7336df71151a7543bff2e7e83ed7f97daf85ea03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16609ae57d1387aa3f335ca36065b7de8b84e21846068d237d4eaee6a12304ad",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-04-16T12:35:53Z",
    "title_canon_sha256": "dec48f6af65ded9cd1e2dcd9a530911f6d61dea0ec75760aa31fe874bf94315b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9704047",
    "kind": "arxiv",
    "version": 1
  }
}