Pith Number

pith:XFLPVEE4

pith:2005:XFLPVEE4SH3BR5HBMCJ3ZDUG3Y

not attested not anchored not stored refs pending

Can one tell Einstein's unimodular theory from Einstein's general relativity?

Enrique Alvarez

arxiv:hep-th/0501146 v3 · 2005-01-19 · 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{XFLPVEE4SH3BR5HBMCJ3ZDUG3Y}

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	2026-07-04T16:55:57.924952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b956fa909c91f618f4e16093bc8e86de01addc03bae42d0db0f47ae262b9b5d2

Aliases

arxiv: hep-th/0501146 · arxiv_version: hep-th/0501146v3 · doi: 10.48550/arxiv.hep-th/0501146 · pith_short_12: XFLPVEE4SH3B · pith_short_16: XFLPVEE4SH3BR5HB · pith_short_8: XFLPVEE4

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/XFLPVEE4SH3BR5HBMCJ3ZDUG3Y \
  | 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: b956fa909c91f618f4e16093bc8e86de01addc03bae42d0db0f47ae262b9b5d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67d0a7c586afdf667a682eff3c1f8756f646a594c9abbc24346f7a8fb542504b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2005-01-19T12:01:59Z",
    "title_canon_sha256": "e28f88e0e2f4eea4f561f7b88cc4ff1208e7c427fd00e9800f5f5c17812d0a35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0501146",
    "kind": "arxiv",
    "version": 3
  }
}