Pith Number

pith:Z3WSCE6O

pith:2021:Z3WSCE6ON4SROWAS4GDGR2JYYR

not attested not anchored not stored refs pending

Can the Hubble tension be resolved by bulk viscosity?

Ben David Normann, Iver H{\aa}kon Brevik

arxiv:2107.13533 v2 · 2021-07-26 · 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{Z3WSCE6ON4SROWAS4GDGR2JYYR}

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.

Cited by

2 papers in Pith

Primordial black hole formation in bulk-viscous cosmology

Dissipative Cosmology and the Nature of Dark Energy: Insights from Bulk Viscosity with DESI DR2 observations

Receipt and verification

First computed	2026-07-05T03:14:56.458551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ceed2113ce6f25175812e18668e938c460fa7553f2b565ca9d13a90e383818e2

Aliases

arxiv: 2107.13533 · arxiv_version: 2107.13533v2 · doi: 10.48550/arxiv.2107.13533 · pith_short_12: Z3WSCE6ON4SR · pith_short_16: Z3WSCE6ON4SROWAS · pith_short_8: Z3WSCE6O

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/Z3WSCE6ON4SROWAS4GDGR2JYYR \
  | 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: ceed2113ce6f25175812e18668e938c460fa7553f2b565ca9d13a90e383818e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dbcdad9d29aeb935f82ff2847d18fadaed3ca1504367b9b42782d5c0eb10034",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-07-26T17:38:36Z",
    "title_canon_sha256": "19fc6e659e43b3d609344e4b748f0860bda026352f76752a264dc388216893fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.13533",
    "kind": "arxiv",
    "version": 2
  }
}