Pith Number

pith:YI4E24W3

pith:2009:YI4E24W3GZAFFCO6I5OJUBAML2

not attested not anchored not stored refs pending

Black Hole Meiosis

Thomas Wyder, Walter Van Herck

arxiv:0909.0508 v3 · 2009-09-02 · hep-th · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YI4E24W3GZAFFCO6I5OJUBAML2}

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	2026-05-18T02:24:47.432583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2384d72db36405289de475c9a040c5e9f4e9da95fd4bc62e7e41d6c4a91daaf

Aliases

arxiv: 0909.0508 · arxiv_version: 0909.0508v3 · doi: 10.48550/arxiv.0909.0508 · pith_short_12: YI4E24W3GZAF · pith_short_16: YI4E24W3GZAFFCO6 · pith_short_8: YI4E24W3

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/YI4E24W3GZAFFCO6I5OJUBAML2 \
  | 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: c2384d72db36405289de475c9a040c5e9f4e9da95fd4bc62e7e41d6c4a91daaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20505719280716d5d84c1a219e686411ec10ebed4e44e2ca4cbce4a4f790a448",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-09-02T20:44:13Z",
    "title_canon_sha256": "9a0cb49ba5277c191ed5f4fe048f82018670c85e566e34700aa56df2711c22ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0508",
    "kind": "arxiv",
    "version": 3
  }
}