Pith Number

pith:UGWQ5Q5K

pith:2012:UGWQ5Q5K5EVOXCZI7N4HO2LJEO

not attested not anchored not stored refs pending

Dark energy as an elastic strain fluid

A. Tartaglia, M. Sereno, N. Radicella

arxiv:1211.3125 v1 · 2012-11-13 · 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{UGWQ5Q5K5EVOXCZI7N4HO2LJEO}

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	2026-05-18T01:53:15.957155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1ad0ec3aae92aeb8b28fb7877696923aa395d4dfa1b5c2b39569225a9755e17

Aliases

arxiv: 1211.3125 · arxiv_version: 1211.3125v1 · doi: 10.48550/arxiv.1211.3125 · pith_short_12: UGWQ5Q5K5EVO · pith_short_16: UGWQ5Q5K5EVOXCZI · pith_short_8: UGWQ5Q5K

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/UGWQ5Q5K5EVOXCZI7N4HO2LJEO \
  | 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: a1ad0ec3aae92aeb8b28fb7877696923aa395d4dfa1b5c2b39569225a9755e17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0dff753034148a9af976f557b64fed2230bc8c2975d047ecc724127a5fdb3ac",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-13T21:00:08Z",
    "title_canon_sha256": "7cc41ac13db748e96e7a8bf97964cec1d8a7b145b4d43b227ed1601ff4196dff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3125",
    "kind": "arxiv",
    "version": 1
  }
}