Pith Number

pith:4ZLBCINC

pith:2011:4ZLBCINCU4XTB5KLAVFWJGXEXL

not attested not anchored not stored refs pending

Viscous dark fluid Universe: a unified model of the dark sector?

H. E. S. Velten, W. S. Hip\'olito-Ricaldi, W. Zimdahl

arxiv:1111.4694 v1 · 2011-11-20 · astro-ph.CO · gr-qc · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ZLBCINCU4XTB5KLAVFWJGXEXL}

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	2026-05-18T04:08:02.831287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6561121a2a72f30f54b054b649ae4badba2e7d05ffac0e7fdef7c90ae6706c1

Aliases

arxiv: 1111.4694 · arxiv_version: 1111.4694v1 · doi: 10.48550/arxiv.1111.4694 · pith_short_12: 4ZLBCINCU4XT · pith_short_16: 4ZLBCINCU4XTB5KL · pith_short_8: 4ZLBCINC

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/4ZLBCINCU4XTB5KLAVFWJGXEXL \
  | 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: e6561121a2a72f30f54b054b649ae4badba2e7d05ffac0e7fdef7c90ae6706c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74d4d54638a8fb8a267bf97063ac581e84f1c94c8b24f313f8dbb648864dfeca",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-20T22:33:23Z",
    "title_canon_sha256": "06135bf1157f4043df89c6bd7f6ee23bb994d0d7ddf856c9cec53189b9281d5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4694",
    "kind": "arxiv",
    "version": 1
  }
}