Pith Number

pith:XEDO4PTB

pith:2011:XEDO4PTBGUQAS54WUDBNBXEMPZ

not attested not anchored not stored refs pending

Testing Unimodular Gravity

Naveen K. Singh, Pankaj Jain, Purnendu Karmakar, Subhadip Mitra, Sukanta Panda

arxiv:1108.1856 v3 · 2011-08-09 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XEDO4PTBGUQAS54WUDBNBXEMPZ}

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	2026-05-18T02:00:59.988728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b906ee3e613520097796a0c2d0dc8c7e4bcdb88440c28adc4c544867b389dd81

Aliases

arxiv: 1108.1856 · arxiv_version: 1108.1856v3 · doi: 10.48550/arxiv.1108.1856 · pith_short_12: XEDO4PTBGUQA · pith_short_16: XEDO4PTBGUQAS54W · pith_short_8: XEDO4PTB

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/XEDO4PTBGUQAS54WUDBNBXEMPZ \
  | 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: b906ee3e613520097796a0c2d0dc8c7e4bcdb88440c28adc4c544867b389dd81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24f72496970d760df732db9b98bfe1f7d099c2328da6124fc1adc2771052bc2c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-08-09T05:29:17Z",
    "title_canon_sha256": "892357159b50245c971e4d62a5ae0227ee5e8569a8f6a2782584404cce396253"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1856",
    "kind": "arxiv",
    "version": 3
  }
}