Pith Number

pith:Q54JUFPY

pith:1997:Q54JUFPYOF4244W35KMKJAF6JL

not attested not anchored not stored refs pending

Integrable Multicomponent Perfect Fluid Multidimensional Cosmology II: Scalar Fields

A. Zhuk, M. Rainer, U. Kasper

arxiv:gr-qc/9705046 v1 · 1997-05-17 · 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{Q54JUFPYOF4244W35KMKJAF6JL}

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	2026-05-18T01:39:19.000045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87789a15f87179ae72dbea98a480be4ad20a4d066f10c1a10e92a4da1b074fd1

Aliases

arxiv: gr-qc/9705046 · arxiv_version: gr-qc/9705046v1 · doi: 10.48550/arxiv.gr-qc/9705046 · pith_short_12: Q54JUFPYOF42 · pith_short_16: Q54JUFPYOF4244W3 · pith_short_8: Q54JUFPY

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/Q54JUFPYOF4244W35KMKJAF6JL \
  | 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: 87789a15f87179ae72dbea98a480be4ad20a4d066f10c1a10e92a4da1b074fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13d946551102fa65acbc8c2ae9eb407b78b61ea3e3068bbe4b73f4b2b982b5e9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1997-05-17T12:14:28Z",
    "title_canon_sha256": "66fac8c5a3857b23927cdc13d7a9234f14cc5e9f108d74ed52da2a3f08a2697f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9705046",
    "kind": "arxiv",
    "version": 1
  }
}