Pith Number

pith:66ULMQLS

pith:2008:66ULMQLSBCDQFIRJTQWGRITFKU

not attested not anchored not stored refs pending

Shear viscosity, relaxation and collision times in spherically symmetric spacetimes

Roberto A Sussman

arxiv:0812.4430 v1 · 2008-12-23 · 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{66ULMQLSBCDQFIRJTQWGRITFKU}

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

1 paper in Pith

Gravitational Collapse of an Inhomogeneous Fluid in Rastall Theory

Receipt and verification

First computed	2026-07-04T15:35:08.681703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7a8b64172088702a2299c2c68a26555215d196e45527fa41ea96c0927ec5c12

Aliases

arxiv: 0812.4430 · arxiv_version: 0812.4430v1 · doi: 10.48550/arxiv.0812.4430 · pith_short_12: 66ULMQLSBCDQ · pith_short_16: 66ULMQLSBCDQFIRJ · pith_short_8: 66ULMQLS

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/66ULMQLSBCDQFIRJTQWGRITFKU \
  | 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: f7a8b64172088702a2299c2c68a26555215d196e45527fa41ea96c0927ec5c12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abe26ea56370470031dc7269664879a995f6e8ae4ae9b42efdac96a6d2d96bcb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-12-23T17:17:27Z",
    "title_canon_sha256": "990fb8005a444a4c1986c018419c59b90a15108385fd261bdd5bede689860c4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4430",
    "kind": "arxiv",
    "version": 1
  }
}