Pith Number

pith:IFWO2PZI

pith:2001:IFWO2PZIMF642LU7QMIKFIASWV

not attested not anchored not stored refs pending

Geometric classification of the torsion tensor in space-time

C. Stornaiolo, G. Lambiase, S. Capozziello

arxiv:gr-qc/0101038 v1 · 2001-01-10 · 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{IFWO2PZIMF642LU7QMIKFIASWV}

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	2026-05-18T00:34:16.764154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

416ced3f28617dcd2e9f8310a2a012b566d4ace59c67dae8a7288ca49a77514c

Aliases

arxiv: gr-qc/0101038 · arxiv_version: gr-qc/0101038v1 · doi: 10.48550/arxiv.gr-qc/0101038 · pith_short_12: IFWO2PZIMF64 · pith_short_16: IFWO2PZIMF642LU7 · pith_short_8: IFWO2PZI

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/IFWO2PZIMF642LU7QMIKFIASWV \
  | 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: 416ced3f28617dcd2e9f8310a2a012b566d4ace59c67dae8a7288ca49a77514c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ea42d3470c8f4439811a6e1d137bdd042beeb3c83f49de31fc1cc21495e2445",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-01-10T12:27:33Z",
    "title_canon_sha256": "a4b21d02b31504338b9dc57480fb7d01fd41b948874a9d81b16fe3afe6566c68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0101038",
    "kind": "arxiv",
    "version": 1
  }
}