Pith Number

pith:3K4PIUZ7

pith:2012:3K4PIUZ7BT5RSQ24D2FPCV6SZR

not attested not anchored not stored refs pending

Coupled three-form dark energy

Nelson J. Nunes, Tomi S. Koivisto

arxiv:1212.2541 v2 · 2012-12-11 · 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{3K4PIUZ7BT5RSQ24D2FPCV6SZR}

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	2026-05-18T01:52:40.009129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dab8f4533f0cfb19435c1e8af157d2cc535da15a92ae4dd08ed46d6c22120a04

Aliases

arxiv: 1212.2541 · arxiv_version: 1212.2541v2 · doi: 10.48550/arxiv.1212.2541 · pith_short_12: 3K4PIUZ7BT5R · pith_short_16: 3K4PIUZ7BT5RSQ24 · pith_short_8: 3K4PIUZ7

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/3K4PIUZ7BT5RSQ24D2FPCV6SZR \
  | 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: dab8f4533f0cfb19435c1e8af157d2cc535da15a92ae4dd08ed46d6c22120a04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4688bbd78cc20f53d8a7c591ab11c1ebc1899f30e1aa6f78ed2264f647367c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-11T17:08:57Z",
    "title_canon_sha256": "a2543ed7a94b93b87aa8a1f583aac09cd22eec8b6958ffa4a305f9d204d9066e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2541",
    "kind": "arxiv",
    "version": 2
  }
}