Pith Number

pith:OYHVAO3D

pith:2000:OYHVAO3DIRO4SZ6BS6POAJRINK

not attested not anchored not stored refs pending

Clumps into Voids

Charles Hellaby (University of Cape Town), Nazeem Mustapha

arxiv:astro-ph/0006083 v1 · 2000-06-06 · 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{OYHVAO3DIRO4SZ6BS6POAJRINK}

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	2026-05-18T01:40:47.698866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

760f503b63445dc967c1979ee026286ab25ade3a05971d00a61858041e99cf49

Aliases

arxiv: astro-ph/0006083 · arxiv_version: astro-ph/0006083v1 · doi: 10.48550/arxiv.astro-ph/0006083 · pith_short_12: OYHVAO3DIRO4 · pith_short_16: OYHVAO3DIRO4SZ6B · pith_short_8: OYHVAO3D

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/OYHVAO3DIRO4SZ6BS6POAJRINK \
  | 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: 760f503b63445dc967c1979ee026286ab25ade3a05971d00a61858041e99cf49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8ce9bacfe5a12e178a8ffb800d094d455a3a52b5b2dbc1b1692f5c64f77a96a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-06T16:39:48Z",
    "title_canon_sha256": "0fc0d140bcd553dbb8d125802163549fc5aba2fb00f3789ca870763d2b9089cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006083",
    "kind": "arxiv",
    "version": 1
  }
}