Pith Number

pith:B2U7ZCEP

pith:2011:B2U7ZCEPHXP2MJTWGNLLGJS24E

not attested not anchored not stored refs pending

Testing coupled dark energy with next-generation large-scale observations

Adrian Vollmer, Claudia Quercellini, Luca Amendola, Valeria Pettorino

arxiv:1111.1404 v1 · 2011-11-06 · 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{B2U7ZCEPHXP2MJTWGNLLGJS24E}

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	2026-05-18T01:59:44.772146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ea9fc888f3ddfa626763356b3265ae119f65f2003cf628605aa142d866c2e2c

Aliases

arxiv: 1111.1404 · arxiv_version: 1111.1404v1 · doi: 10.48550/arxiv.1111.1404 · pith_short_12: B2U7ZCEPHXP2 · pith_short_16: B2U7ZCEPHXP2MJTW · pith_short_8: B2U7ZCEP

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/B2U7ZCEPHXP2MJTWGNLLGJS24E \
  | 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: 0ea9fc888f3ddfa626763356b3265ae119f65f2003cf628605aa142d866c2e2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d244d925fd9688f48bb70003d031b4c429ee499407962e3a75a586e0360250a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-06T11:10:00Z",
    "title_canon_sha256": "97c0a12d6f18de75fbe38b2856aa2f5c51d6b43c0e278c8241b13f52ab5fed93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1404",
    "kind": "arxiv",
    "version": 1
  }
}