Pith Number

pith:3XN7W7KR

pith:1995:3XN7W7KRSOA3MWL46RYZB6TVFE

not attested not anchored not stored refs pending

Ashtekar Variables and Matter Coupling

H.-j. Xie, M. Tsuda, T. Shirafuji

arxiv:gr-qc/9501021 v1 · 1995-01-20 · 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{3XN7W7KRSOA3MWL46RYZB6TVFE}

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	2026-05-18T01:06:45.147583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dddbfb7d519381b6597cf47190fa752900b50d24360cf417a3d5fa8a07290b43

Aliases

arxiv: gr-qc/9501021 · arxiv_version: gr-qc/9501021v1 · doi: 10.48550/arxiv.gr-qc/9501021 · pith_short_12: 3XN7W7KRSOA3 · pith_short_16: 3XN7W7KRSOA3MWL4 · pith_short_8: 3XN7W7KR

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/3XN7W7KRSOA3MWL46RYZB6TVFE \
  | 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: dddbfb7d519381b6597cf47190fa752900b50d24360cf417a3d5fa8a07290b43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d403a8deeeec8542aa1fb1d6ae3d2220e515a3b31bf7786c265b19ce6f42e46a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1995-01-20T05:59:25Z",
    "title_canon_sha256": "d06c7e46e8ab7a492a12f8490f1e755f20c3e81196aa18c45dc498c4010bb542"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9501021",
    "kind": "arxiv",
    "version": 1
  }
}