Pith Number

pith:SVDREFEK

pith:2012:SVDREFEKHAVUHYGCJOZ4TDNWVJ

not attested not anchored not stored refs pending

Evolution of a universe filled with a causal viscous fluid

Alejandro S. Jakubi, Luis P. Chimento

arxiv:1208.1548 v1 · 2012-08-08 · 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{SVDREFEKHAVUHYGCJOZ4TDNWVJ}

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	2026-05-18T03:49:11.287386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

954712148a382b43e0c24bb3c98db6aa5a787a24f890125f9e1db4d326c7f983

Aliases

arxiv: 1208.1548 · arxiv_version: 1208.1548v1 · doi: 10.48550/arxiv.1208.1548 · pith_short_12: SVDREFEKHAVU · pith_short_16: SVDREFEKHAVUHYGC · pith_short_8: SVDREFEK

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/SVDREFEKHAVUHYGCJOZ4TDNWVJ \
  | 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: 954712148a382b43e0c24bb3c98db6aa5a787a24f890125f9e1db4d326c7f983

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34730a9dab5f585915f0136ce70e8c13024b9688669c5ed3b1c0c7fb9a3adf53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-08-08T00:08:05Z",
    "title_canon_sha256": "dc1f7bcdd07767a52c3837d526b5e7e4b01d880518ce4783ee5bd31d95fc0854"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1548",
    "kind": "arxiv",
    "version": 1
  }
}