Pith Number

pith:2LX6NQWI

pith:1995:2LX6NQWI6TZO4LASLGHWIPJKRL

not attested not anchored not stored refs pending

How to Create a 2-D Black Hole

A.L. Larsen, S. Hendy, V. Frolov

arxiv:hep-th/9510231 v2 · 1995-11-01 · hep-th · 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{2LX6NQWI6TZO4LASLGHWIPJKRL}

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	2026-05-18T04:17:35.079881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2efe6c2c8f4f2ee2c12598f643d2a8ad3ecfb7e9f1f230810c055e4bc720758

Aliases

arxiv: hep-th/9510231 · arxiv_version: hep-th/9510231v2 · doi: 10.48550/arxiv.hep-th/9510231 · pith_short_12: 2LX6NQWI6TZO · pith_short_16: 2LX6NQWI6TZO4LAS · pith_short_8: 2LX6NQWI

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/2LX6NQWI6TZO4LASLGHWIPJKRL \
  | 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: d2efe6c2c8f4f2ee2c12598f643d2a8ad3ecfb7e9f1f230810c055e4bc720758

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8160d0d8e9bc342bc24bf376f908f89ceeac95652232b3823a28959325b50be",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1995-11-01T01:48:28Z",
    "title_canon_sha256": "801debc37177acb42028cabe50971858c9642145823237509bc4c6dba997e4a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9510231",
    "kind": "arxiv",
    "version": 2
  }
}