Pith Number

pith:BCM64PQW

pith:2002:BCM64PQWGXHT7WETJIC7IJLKMM

not attested not anchored not stored refs pending

Extrinsic Curvature and the Einstein Constraints

Harald P. Pfeiffer, James W. York

arxiv:gr-qc/0207095 v2 · 2002-07-24 · 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{BCM64PQWGXHT7WETJIC7IJLKMM}

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.

Cited by

4 papers in Pith

Solving Hamiltonian Constraint Equation with Physics-Informed Neural Networks

Implementation of multi-grid Poisson solver in numerical relativity and its application to gravitational collapse of massive star

Biased parameter inference of eccentric, spin-precessing binary black holes

Data-Driven Acceleration of Eccentricity Reduction for Binary Black Hole Simulations

Receipt and verification

First computed	2026-07-04T16:33:45.675496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0899ee3e1635cf3fd8934a05f4256a63256a9efea225573e80c14a4ac1ae5785

Aliases

arxiv: gr-qc/0207095 · arxiv_version: gr-qc/0207095v2 · doi: 10.48550/arxiv.gr-qc/0207095 · pith_short_12: BCM64PQWGXHT · pith_short_16: BCM64PQWGXHT7WET · pith_short_8: BCM64PQW

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/BCM64PQWGXHT7WETJIC7IJLKMM \
  | 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: 0899ee3e1635cf3fd8934a05f4256a63256a9efea225573e80c14a4ac1ae5785

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22e4be039cd36b0765195ee68b343dc09eb68a4a9c264492fc7e53725bc7894b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-07-24T16:57:27Z",
    "title_canon_sha256": "c9e5b915545947815fd78ef397e153010085ee567ec59eadebb0b8e80e550a56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0207095",
    "kind": "arxiv",
    "version": 2
  }
}