Pith Number

pith:M7SGIPCI

pith:2009:M7SGIPCIA2H6ICZXZSTBYLSYFT

not attested not anchored not stored refs pending

New considerations on Hilbert action and Einstein equations in anisotropic spaces

Nicoleta Voicu

arxiv:0911.5034 v1 · 2009-11-26 · 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{M7SGIPCIA2H6ICZXZSTBYLSYFT}

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	2026-05-18T04:09:35.281218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67e4643c48068fe40b37cca61c2e582cc5502867be479a2c522210511079067f

Aliases

arxiv: 0911.5034 · arxiv_version: 0911.5034v1 · doi: 10.48550/arxiv.0911.5034 · pith_short_12: M7SGIPCIA2H6 · pith_short_16: M7SGIPCIA2H6ICZX · pith_short_8: M7SGIPCI

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/M7SGIPCIA2H6ICZXZSTBYLSYFT \
  | 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: 67e4643c48068fe40b37cca61c2e582cc5502867be479a2c522210511079067f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfd75bbef12329cf00992158f764fb9a4412c0ec7cbe01e268e5ccab63170b0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-11-26T09:17:44Z",
    "title_canon_sha256": "1ca7d610b8368ce6afa7b00a1c64e69dfebbe7243d932f7f01f140153cbf04de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.5034",
    "kind": "arxiv",
    "version": 1
  }
}