Pith Number

pith:PJ4RTQDA

pith:1999:PJ4RTQDAD2M7CTNZ4QAKUVPP57

not attested not anchored not stored refs pending

Relativistic perfect fluid models

Z. Perj\'es

arxiv:gr-qc/9911113 v1 · 1999-11-28 · 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{PJ4RTQDAD2M7CTNZ4QAKUVPP57}

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	2026-05-18T00:34:16.673790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a7919c0601e99f14db9e400aa55efefe738188ade20c39a400593eef1d9b1e9

Aliases

arxiv: gr-qc/9911113 · arxiv_version: gr-qc/9911113v1 · doi: 10.48550/arxiv.gr-qc/9911113 · pith_short_12: PJ4RTQDAD2M7 · pith_short_16: PJ4RTQDAD2M7CTNZ · pith_short_8: PJ4RTQDA

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/PJ4RTQDAD2M7CTNZ4QAKUVPP57 \
  | 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: 7a7919c0601e99f14db9e400aa55efefe738188ade20c39a400593eef1d9b1e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "358c0bbbe4df204c6e05d329f6e049dcc4fbc1df0daebd9e794a7cbc7f14d3d1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-11-28T16:19:47Z",
    "title_canon_sha256": "341981a6c61efce2f6350b98119b1a6836035d8e60d9cbe0202359a859310871"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9911113",
    "kind": "arxiv",
    "version": 1
  }
}