Pith Number

pith:5J3XUJ3U

pith:2005:5J3XUJ3UUO2762AC7RN23AZROS

not attested not anchored not stored refs pending

The quantum black hole

Arun Ram, Budh Ram, Nilam Ram

arxiv:gr-qc/0504030 v2 · 2005-04-07 · gr-qc · astro-ph · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5J3XUJ3UUO2762AC7RN23AZROS}

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	2026-07-04T14:50:03.396876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea777a2774a3b5ff6802fc5bad8331748fbfde2b6725cddac4df4c14db947f6b

Aliases

arxiv: gr-qc/0504030 · arxiv_version: gr-qc/0504030v2 · doi: 10.48550/arxiv.gr-qc/0504030 · pith_short_12: 5J3XUJ3UUO27 · pith_short_16: 5J3XUJ3UUO2762AC · pith_short_8: 5J3XUJ3U

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/5J3XUJ3UUO2762AC7RN23AZROS \
  | 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: ea777a2774a3b5ff6802fc5bad8331748fbfde2b6725cddac4df4c14db947f6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "514b8259ad72edd4cfb1ea817eff5087925864386e367d79317a100b0c2b95b3",
    "cross_cats_sorted": [
      "astro-ph",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2005-04-07T14:17:53Z",
    "title_canon_sha256": "c369895a1762a1d8dcc0734d1e78c651026b724a705262699f306fb972ecc6db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0504030",
    "kind": "arxiv",
    "version": 2
  }
}