Pith Number

pith:CQQ7OB2E

pith:2000:CQQ7OB2EMZBPZU6GLY4BT3YUJW

not attested not anchored not stored refs pending

Time-Symmetric ADI and Causal Reconnection: Stable Numerical Techniques for Hyperbolic Systems on Moving Grids

Bernard F. Schutz, Miguel Alcubierre

arxiv:physics/0009029 v1 · 2000-09-08 · physics.comp-ph · 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{CQQ7OB2EMZBPZU6GLY4BT3YUJW}

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	2026-07-04T16:22:14.360589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1421f707446642fcd3c65e3819ef144db9389f7e8dfa469fdce4f3420f22e6c1

Aliases

arxiv: physics/0009029 · arxiv_version: physics/0009029v1 · doi: 10.48550/arxiv.physics/0009029 · pith_short_12: CQQ7OB2EMZBP · pith_short_16: CQQ7OB2EMZBPZU6G · pith_short_8: CQQ7OB2E

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/CQQ7OB2EMZBPZU6GLY4BT3YUJW \
  | 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: 1421f707446642fcd3c65e3819ef144db9389f7e8dfa469fdce4f3420f22e6c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e44500add9023e9c4cda755daafa99430f360d8992cd60f63ee50f07bc27e0dd",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2000-09-08T10:25:06Z",
    "title_canon_sha256": "8b9017b31e53f4a51ab3b48d9636f383bac1dace15829c8b7d1707f1668cec43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0009029",
    "kind": "arxiv",
    "version": 1
  }
}