Pith Number

pith:XNPHLKIK

pith:2010:XNPHLKIKYPE5W2SUCDGHIVKA6N

not attested not anchored not stored refs pending

Constraint preserving boundary conditions for the Z4c formulation of general relativity

David Hilditch, Milton Ruiz, Sebastiano Bernuzzi

arxiv:1010.0523 v2 · 2010-10-04 · 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{XNPHLKIKYPE5W2SUCDGHIVKA6N}

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	2026-05-18T02:23:47.428526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb5e75a90ac3c9db6a5410cc745540f361884d7c4394e25d7c53e1ce0cd944e9

Aliases

arxiv: 1010.0523 · arxiv_version: 1010.0523v2 · doi: 10.48550/arxiv.1010.0523 · pith_short_12: XNPHLKIKYPE5 · pith_short_16: XNPHLKIKYPE5W2SU · pith_short_8: XNPHLKIK

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/XNPHLKIKYPE5W2SUCDGHIVKA6N \
  | 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: bb5e75a90ac3c9db6a5410cc745540f361884d7c4394e25d7c53e1ce0cd944e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27c19dbd8f041372e6d7a67bf3bb2c30f500dd87253a7e265f3cefe2f54da865",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-10-04T10:03:25Z",
    "title_canon_sha256": "2b08b608aea1a6a1b713dbfc68ecdccfdda8f1aa34bb79e5915c7165f6eec19b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0523",
    "kind": "arxiv",
    "version": 2
  }
}