Pith Number

pith:P72I5C5S

pith:1996:P72I5C5SWSLDFNS4KDHKM3LECR

not attested not anchored not stored refs pending

How Anisotropic is our Universe?

Emory. F. Bunn, Joseph Silk, Pedro Ferreira

arxiv:astro-ph/9605123 v1 · 1996-05-20 · 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{P72I5C5SWSLDFNS4KDHKM3LECR}

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	2026-07-04T15:23:54.035844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ff48e8bb2b49632b65c50cea66d64145f2ca463dbfab0b9173f0710d3764c6d

Aliases

arxiv: astro-ph/9605123 · arxiv_version: astro-ph/9605123v1 · doi: 10.48550/arxiv.astro-ph/9605123 · pith_short_12: P72I5C5SWSLD · pith_short_16: P72I5C5SWSLDFNS4 · pith_short_8: P72I5C5S

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/P72I5C5SWSLDFNS4KDHKM3LECR \
  | 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: 7ff48e8bb2b49632b65c50cea66d64145f2ca463dbfab0b9173f0710d3764c6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db7fc24d10a6176dfeb9a3b2755f575de5240df344b17440c200ee803845ef59",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-05-20T18:50:58Z",
    "title_canon_sha256": "f8e9bd5bb13912742a1c96e598e6fc1a7e1106e00f1138d892738179bf0b0b9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9605123",
    "kind": "arxiv",
    "version": 1
  }
}