Pith Number

pith:PB2NBZYF

pith:1993:PB2NBZYFTIKMBIPLSNPIKXECLP

not attested not anchored not stored refs pending

Exponential-Potential Scalar Field Universes II: The Inhomogeneous Models

A. Feinstein, J. Ibanez, J.M. Aguirregabiria

arxiv:gr-qc/9309014 v1 · 1993-09-14 · 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{PB2NBZYFTIKMBIPLSNPIKXECLP}

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	2026-05-18T04:37:57.422007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7874d0e7059a14c0a1eb935e855c825bc6aeb12ca76980acac32762bd0b6efda

Aliases

arxiv: gr-qc/9309014 · arxiv_version: gr-qc/9309014v1 · doi: 10.48550/arxiv.gr-qc/9309014 · pith_short_12: PB2NBZYFTIKM · pith_short_16: PB2NBZYFTIKMBIPL · pith_short_8: PB2NBZYF

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/PB2NBZYFTIKMBIPLSNPIKXECLP \
  | 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: 7874d0e7059a14c0a1eb935e855c825bc6aeb12ca76980acac32762bd0b6efda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dab56574d626d7c8c61ece8737fcb61907fe8f17b50c57c7f81dffa004ec160",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1993-09-14T16:09:12Z",
    "title_canon_sha256": "72ebf5f5fe584144d718113455239dfba3528cc27db02fdd13ede803d6b240b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9309014",
    "kind": "arxiv",
    "version": 1
  }
}