Pith Number

pith:XDIEZ4RK

pith:2011:XDIEZ4RKP5BM6V2GP2OTQK3HCC

not attested not anchored not stored refs pending

You Cannot Press Out the Black Hole

Daisuke Ida, Takahiro Okamoto

arxiv:1105.6173 v2 · 2011-05-31 · gr-qc · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDIEZ4RKP5BM6V2GP2OTQK3HCC}

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	2026-05-18T04:03:19.380767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8d04cf22a7f42cf57467e9d382b6710a17a7598d225b03b74b0fa4ee02f8727

Aliases

arxiv: 1105.6173 · arxiv_version: 1105.6173v2 · doi: 10.48550/arxiv.1105.6173 · pith_short_12: XDIEZ4RKP5BM · pith_short_16: XDIEZ4RKP5BM6V2G · pith_short_8: XDIEZ4RK

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/XDIEZ4RKP5BM6V2GP2OTQK3HCC \
  | 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: b8d04cf22a7f42cf57467e9d382b6710a17a7598d225b03b74b0fa4ee02f8727

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0789ac4d8a10d8b877e4bb910dffa5665576559cc246c95a3a7f9a81095271d",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-05-31T06:48:46Z",
    "title_canon_sha256": "7f140c22415bd98fa38be4146ff105555b3841f732f1333a4f96a886b2dfdab4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.6173",
    "kind": "arxiv",
    "version": 2
  }
}