Pith Number

pith:ZSSNJ5NN

pith:1999:ZSSNJ5NNZA7VSAKKTD6KRX5AHH

not attested not anchored not stored refs pending

The Physical Interpretation of the Lanczos Tensor

Mark D. Roberts

arxiv:gr-qc/9904006 v1 · 1999-04-04 · 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{ZSSNJ5NNZA7VSAKKTD6KRX5AHH}

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	2026-05-18T04:25:11.866989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cca4d4f5adc83f59014a98fca8dfa039f80e368a3a9106ff42f975c078c757c8

Aliases

arxiv: gr-qc/9904006 · arxiv_version: gr-qc/9904006v1 · doi: 10.48550/arxiv.gr-qc/9904006 · pith_short_12: ZSSNJ5NNZA7V · pith_short_16: ZSSNJ5NNZA7VSAKK · pith_short_8: ZSSNJ5NN

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/ZSSNJ5NNZA7VSAKKTD6KRX5AHH \
  | 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: cca4d4f5adc83f59014a98fca8dfa039f80e368a3a9106ff42f975c078c757c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe6a0bda372c3de46b385ff5645d824906ab458d128d565e6ebf86f59a7ea80d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-04-04T15:59:59Z",
    "title_canon_sha256": "3b968b91d59f31f7f6d9a989cfe8e2ae481a336b0096c3e8dd2d626d8b979f14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9904006",
    "kind": "arxiv",
    "version": 1
  }
}