Pith Number

pith:4GLJKOAJ

pith:2000:4GLJKOAJ5Z7AG24Z5EWW6TIXUX

not attested not anchored not stored refs pending

Does a Kalb-Ramond field make spacetime optically active

Aninda Sinha, Parthasarathi Majumdar, Sayan Kar, Soumitra SenGupta

arxiv:gr-qc/0006097 v2 · 2000-06-28 · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4GLJKOAJ5Z7AG24Z5EWW6TIXUX}

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	2026-05-18T04:13:27.093562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e196953809ee7e036b99e92d6f4d17a5ec93fa0a5e198a79ee331053c4a3e2cd

Aliases

arxiv: gr-qc/0006097 · arxiv_version: gr-qc/0006097v2 · doi: 10.48550/arxiv.gr-qc/0006097 · pith_short_12: 4GLJKOAJ5Z7A · pith_short_16: 4GLJKOAJ5Z7AG24Z · pith_short_8: 4GLJKOAJ

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/4GLJKOAJ5Z7AG24Z5EWW6TIXUX \
  | 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: e196953809ee7e036b99e92d6f4d17a5ec93fa0a5e198a79ee331053c4a3e2cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c611c8d4f9306f21cf972a9db3edce31d0d1eaef553402a5e16430ff1489d451",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2000-06-28T10:16:08Z",
    "title_canon_sha256": "434a2ce6e511b4cfd7a215237d7e3afb47aaf73ce6b155f1e20c3b01f218cfc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0006097",
    "kind": "arxiv",
    "version": 2
  }
}