Pith Number

pith:7GN5YUTG

pith:2015:7GN5YUTGWCXROI2YCBCA2NFB7C

not attested not anchored not stored refs pending

Unimodular Gravity Redux

C. P. Mart\'in, E. \'Alvarez, M. Herrero-Valea, S. Gonz\'alez-Mart\'in

arxiv:1505.00022 v2 · 2015-04-30 · hep-th · 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{7GN5YUTGWCXROI2YCBCA2NFB7C}

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	2026-05-18T00:23:26.970665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f99bdc5266b0af17235810440d34a1f88bb9b21ca855663d173669d66b4a01a4

Aliases

arxiv: 1505.00022 · arxiv_version: 1505.00022v2 · doi: 10.48550/arxiv.1505.00022 · pith_short_12: 7GN5YUTGWCXR · pith_short_16: 7GN5YUTGWCXROI2Y · pith_short_8: 7GN5YUTG

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/7GN5YUTGWCXROI2YCBCA2NFB7C \
  | 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: f99bdc5266b0af17235810440d34a1f88bb9b21ca855663d173669d66b4a01a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c4262060ed438c6bd043d4e815173803b903e082ddc7d5fd5bd42509fef2ba4",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-04-30T20:32:39Z",
    "title_canon_sha256": "470068e1e0a2b7cb787afa96c15d4c6e95334036c6f8ed6a95b8f25a6f9657ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00022",
    "kind": "arxiv",
    "version": 2
  }
}