Pith Number

pith:U5ROE47O

pith:1996:U5ROE47OA5E5VBUHCX2J3OGE3S

not attested not anchored not stored refs pending

"Understanding" cosmological bulk viscosity

Winfried Zimdahl

arxiv:astro-ph/9602128 v1 · 1996-02-23 · astro-ph · 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{U5ROE47OA5E5VBUHCX2J3OGE3S}

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	2026-05-18T01:40:21.727027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a762e273ee0749da868715f49db8c4dc9c1e0dd8de1622fa1359c85fa42b4295

Aliases

arxiv: astro-ph/9602128 · arxiv_version: astro-ph/9602128v1 · doi: 10.48550/arxiv.astro-ph/9602128 · pith_short_12: U5ROE47OA5E5 · pith_short_16: U5ROE47OA5E5VBUH · pith_short_8: U5ROE47O

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/U5ROE47OA5E5VBUHCX2J3OGE3S \
  | 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: a762e273ee0749da868715f49db8c4dc9c1e0dd8de1622fa1359c85fa42b4295

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89c6b1a17bd48f7619d555a645a5d81e7b1cab69f529a4c21cfe2b4b3e33ed70",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-02-23T17:01:53Z",
    "title_canon_sha256": "aa3398fe7a9a93af3f57c54c74313615199495d44b8fd81ad9248754e9416640"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9602128",
    "kind": "arxiv",
    "version": 1
  }
}