Pith Number

pith:MU32WZXJ

pith:2011:MU32WZXJHZIOSYJVAZTLUTM7U2

not attested not anchored not stored refs pending

On new variational principles as alternatives to the Palatini method

Tomi S. Koivisto

arxiv:1103.2743 v2 · 2011-03-14 · gr-qc · astro-ph.CO · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MU32WZXJHZIOSYJVAZTLUTM7U2}

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	2026-05-18T04:20:37.794737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6537ab66e93e50e961350666ba4d9fa699466648db663bd830c375b753ce175c

Aliases

arxiv: 1103.2743 · arxiv_version: 1103.2743v2 · doi: 10.48550/arxiv.1103.2743 · pith_short_12: MU32WZXJHZIO · pith_short_16: MU32WZXJHZIOSYJV · pith_short_8: MU32WZXJ

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/MU32WZXJHZIOSYJVAZTLUTM7U2 \
  | 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: 6537ab66e93e50e961350666ba4d9fa699466648db663bd830c375b753ce175c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd17243d501f6763d8ebda9afd82b0f55109d2f0952a496bfb3ecd4dfa164fcd",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-03-14T19:04:51Z",
    "title_canon_sha256": "ecf3ba831dd204778d38c9c357931164b170bba45f112fd6db0c883575458d6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2743",
    "kind": "arxiv",
    "version": 2
  }
}