pith. sign in
Pith Number

pith:4XZ6C6RU

pith:2013:4XZ6C6RUEMYRZQEZ73UQNEG5AB
not attested not anchored not stored refs pending

Spin in an arbitrary gravitational field

Alexander J. Silenko, Oleg V. Teryaev, Yuri N. Obukhov

arxiv:1308.4552 v1 · 2013-08-21 · gr-qc · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{4XZ6C6RUEMYRZQEZ73UQNEG5AB}

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 2026-05-18T03:05:37.657485Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

e5f3e17a3423311cc099fee90690dd006787d7fa47e119d51bf633a983b0a27a

Aliases

arxiv: 1308.4552 · arxiv_version: 1308.4552v1 · doi: 10.48550/arxiv.1308.4552 · pith_short_12: 4XZ6C6RUEMYR · pith_short_16: 4XZ6C6RUEMYRZQEZ · pith_short_8: 4XZ6C6RU
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/4XZ6C6RUEMYRZQEZ73UQNEG5AB \
  | 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: e5f3e17a3423311cc099fee90690dd006787d7fa47e119d51bf633a983b0a27a
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "aaadd4c235dc07965974df1229844ca1244b2d3f518345395018a3de8bf34ea7",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-08-21T12:29:26Z",
    "title_canon_sha256": "015c6b40ba168c7483d76c8398652c435cb1cf8180d7b01db80aade9a7568ca3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4552",
    "kind": "arxiv",
    "version": 1
  }
}