Pith Number

pith:SU7WSNLF

pith:1996:SU7WSNLFY3OGHGVU2W2IX2OHZF

not attested not anchored not stored refs pending

Mixed Elliptic and Hyperbolic Systems for the Einstein Equations

jr, J.W. York, Y. Choquet-Bruhat

arxiv:gr-qc/9601030 v1 · 1996-01-20 · 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{SU7WSNLFY3OGHGVU2W2IX2OHZF}

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	2026-05-18T03:47:41.680774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

953f693565c6dc639ab4d5b48be9c7c967ee53382f9969c1a166c80592a5d780

Aliases

arxiv: gr-qc/9601030 · arxiv_version: gr-qc/9601030v1 · doi: 10.48550/arxiv.gr-qc/9601030 · pith_short_12: SU7WSNLFY3OG · pith_short_16: SU7WSNLFY3OGHGVU · pith_short_8: SU7WSNLF

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/SU7WSNLFY3OGHGVU2W2IX2OHZF \
  | 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: 953f693565c6dc639ab4d5b48be9c7c967ee53382f9969c1a166c80592a5d780

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9760ebdcf4a6e9abe7967f4cda4c3796aa9f121e91d38ecf6062501c8206e1ba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1996-01-20T20:41:41Z",
    "title_canon_sha256": "9f852ef3b154aefc7b121a62095138e29560f20f9ddd12ac82ad7811944f5c79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9601030",
    "kind": "arxiv",
    "version": 1
  }
}