Pith Number

pith:TXEBLVSA

pith:1999:TXEBLVSAVRNJ4EBEY4XCXR4HNG

not attested not anchored not stored refs pending

A Conformal Hyperbolic Formulation of the Einstein Equations

Bernd Brugmann, Mark Miller, Miguel Alcubierre, Wai-Mo Suen

arxiv:gr-qc/9903030 v1 · 1999-03-08 · 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{TXEBLVSAVRNJ4EBEY4XCXR4HNG}

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	2026-07-04T15:32:08.232594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dc815d640ac5a9e1024c72e2bc78769b5f0be768bb44b1945e5b9a285d1f807

Aliases

arxiv: gr-qc/9903030 · arxiv_version: gr-qc/9903030v1 · doi: 10.48550/arxiv.gr-qc/9903030 · pith_short_12: TXEBLVSAVRNJ · pith_short_16: TXEBLVSAVRNJ4EBE · pith_short_8: TXEBLVSA

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/TXEBLVSAVRNJ4EBEY4XCXR4HNG \
  | 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: 9dc815d640ac5a9e1024c72e2bc78769b5f0be768bb44b1945e5b9a285d1f807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f829054d3dc1b2b6f85f2dd4036edd28347099f791e845b838656ac0ea731d90",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-03-08T21:48:53Z",
    "title_canon_sha256": "540205150a2b03504b437c83c66db691cf2f18ffdd6492165176ba88300cf0f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9903030",
    "kind": "arxiv",
    "version": 1
  }
}