Pith. sign in
Pith Number

pith:CB57UZ33

pith:1993:CB57UZ33HINTM4YF6EJ6ZOTEY6
not attested not anchored not stored refs pending

Actions for Gravity, with Generalizations: A Review

Peter Peldan

arxiv:gr-qc/9305011 v1 · 1993-05-13 · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{CB57UZ33HINTM4YF6EJ6ZOTEY6}

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

1 paper in Pith

Receipt and verification
First computed 2026-07-04T17:25:35.000864Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

107bfa677b3a1b367305f113ecba64c78528ea4ee6decd5ab1ce9597fbd3ca23

Aliases

arxiv: gr-qc/9305011 · arxiv_version: gr-qc/9305011v1 · doi: 10.48550/arxiv.gr-qc/9305011 · pith_short_12: CB57UZ33HINT · pith_short_16: CB57UZ33HINTM4YF · pith_short_8: CB57UZ33
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/CB57UZ33HINTM4YF6EJ6ZOTEY6 \
  | 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: 107bfa677b3a1b367305f113ecba64c78528ea4ee6decd5ab1ce9597fbd3ca23
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "2fa23f9e8020be43eef71848c185111b9f17b508db87de658f61a381b1e3f0ee",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1993-05-13T09:10:03Z",
    "title_canon_sha256": "f123a30f69b30efa3f5ae5d225c571f387ff16420f688af098f3660fcc14d2d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9305011",
    "kind": "arxiv",
    "version": 1
  }
}