Pith Number

pith:KT7MIIQC

pith:2022:KT7MIIQCZ4R7MNHSJ7WTJMKDIN

not attested not anchored not stored refs pending

Classification of "large" black holes into seven families

Dafa Li, Maggie Cheng, Shuwang Li, Xiongrong Li

arxiv:2212.12644 v2 · 2022-12-24 · quant-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KT7MIIQCZ4R7MNHSJ7WTJMKDIN}

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	2026-07-05T08:55:47.886708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54fec42202cf23f634f24fed34b143437911ef0d5f67c2b085c8984e71abd1a7

Aliases

arxiv: 2212.12644 · arxiv_version: 2212.12644v2 · doi: 10.48550/arxiv.2212.12644 · pith_short_12: KT7MIIQCZ4R7 · pith_short_16: KT7MIIQCZ4R7MNHS · pith_short_8: KT7MIIQC

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/KT7MIIQCZ4R7MNHSJ7WTJMKDIN \
  | 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: 54fec42202cf23f634f24fed34b143437911ef0d5f67c2b085c8984e71abd1a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef85c9b3f10350f7390d9684993e14ce3a52b15ab25993e87a525cf06611cf25",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-12-24T03:34:03Z",
    "title_canon_sha256": "acc03b1bf03fa7a1f69ed73d7e6fe1115a00c6ae2069afad88c65589a9e60d8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.12644",
    "kind": "arxiv",
    "version": 2
  }
}