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Pith Number

pith:RMYED5YX

pith:2004:RMYED5YXPWLLSK35GCYEBWFCP3
not attested not anchored not stored refs pending

Lagrangian and Hamiltonian for the Bondi-Sachs metrics

J. Korbicz, J. Tafel

arxiv:gr-qc/0403120 v2 · 2004-03-31 · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{RMYED5YXPWLLSK35GCYEBWFCP3}

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 2026-05-18T02:27:59.039655Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

8b3041f7177d96b92b7d30b040d8a27ecff704acf4472ce13c1a392c79293636

Aliases

arxiv: gr-qc/0403120 · arxiv_version: gr-qc/0403120v2 · doi: 10.48550/arxiv.gr-qc/0403120 · pith_short_12: RMYED5YXPWLL · pith_short_16: RMYED5YXPWLLSK35 · pith_short_8: RMYED5YX
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/RMYED5YXPWLLSK35GCYEBWFCP3 \
  | 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: 8b3041f7177d96b92b7d30b040d8a27ecff704acf4472ce13c1a392c79293636
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "aaf60aa68123de4e6f9e6abc0d624e857e9b5096feaf247d2c0aee9c6c82320b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-03-31T11:04:58Z",
    "title_canon_sha256": "d6b3fefb34f127a52678f9f21b48164e2bb9293bf418d5efbb36e989d7cbb6c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0403120",
    "kind": "arxiv",
    "version": 2
  }
}