Pith Number

pith:QMIIPNGR

pith:2012:QMIIPNGRRSFHSUY77L4532HMHU

not attested not anchored not stored refs pending

Area products for stationary black hole horizons

Matt Visser (Victoria University of Wellington)

arxiv:1205.6814 v3 · 2012-05-30 · 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{QMIIPNGRRSFHSUY77L4532HMHU}

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	2026-05-18T03:15:45.443311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

831087b4d18c8a79531ffaf9dde8ec3d3035df853624db0d3a8dca9cd74744bf

Aliases

arxiv: 1205.6814 · arxiv_version: 1205.6814v3 · doi: 10.48550/arxiv.1205.6814 · pith_short_12: QMIIPNGRRSFH · pith_short_16: QMIIPNGRRSFHSUY7 · pith_short_8: QMIIPNGR

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/QMIIPNGRRSFHSUY77L4532HMHU \
  | 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: 831087b4d18c8a79531ffaf9dde8ec3d3035df853624db0d3a8dca9cd74744bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d78730146b70849cb7476659dc4068417fafa33cc0d169cfbdd0f3ae0e8a14cc",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-05-30T20:03:02Z",
    "title_canon_sha256": "1ccb843bfdbe9d276bb41ce0e7566397a201063a060cfdf114be9ec91563aac0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.6814",
    "kind": "arxiv",
    "version": 3
  }
}