Pith Number

pith:XCNEXPXD

pith:2011:XCNEXPXDG2C7AULANKCSCC34KL

not attested not anchored not stored refs pending

Torsion, an alternative to the cosmological constant?

Andre Tilquin, Thomas Schucker

arxiv:1109.4568 v2 · 2011-09-21 · astro-ph.CO · 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{XCNEXPXDG2C7AULANKCSCC34KL}

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	2026-05-18T02:00:27.128723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b89a4bbee33685f051606a85210b7c52d48eb7474ba6493cc1ba6f1794145c5b

Aliases

arxiv: 1109.4568 · arxiv_version: 1109.4568v2 · doi: 10.48550/arxiv.1109.4568 · pith_short_12: XCNEXPXDG2C7 · pith_short_16: XCNEXPXDG2C7AULA · pith_short_8: XCNEXPXD

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/XCNEXPXDG2C7AULANKCSCC34KL \
  | 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: b89a4bbee33685f051606a85210b7c52d48eb7474ba6493cc1ba6f1794145c5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3337e273581cf979dcf4fa3ef77adb988c73d252473229b0572d479206326819",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-21T16:06:38Z",
    "title_canon_sha256": "69e3bd91e77290729d3b724c9f85e456d06828144f5176a69d56f4c423b2c446"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4568",
    "kind": "arxiv",
    "version": 2
  }
}