Pith Number

pith:CTQL4IKJ

pith:2010:CTQL4IKJJR4N6XLKLBTCC3DSM2

not attested not anchored not stored refs pending

STU Black Holes as Four Qubit Systems

P\'eter L\'evay

arxiv:1004.3639 v1 · 2010-04-21 · hep-th · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CTQL4IKJJR4N6XLKLBTCC3DSM2}

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	2026-05-18T02:33:33.819918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14e0be21494c78df5d6a5866216c7266b541e992b2331682c9ef09cd804dd44d

Aliases

arxiv: 1004.3639 · arxiv_version: 1004.3639v1 · doi: 10.48550/arxiv.1004.3639 · pith_short_12: CTQL4IKJJR4N · pith_short_16: CTQL4IKJJR4N6XLK · pith_short_8: CTQL4IKJ

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/CTQL4IKJJR4N6XLKLBTCC3DSM2 \
  | 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: 14e0be21494c78df5d6a5866216c7266b541e992b2331682c9ef09cd804dd44d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdc5ce9ad83fb72300544a1777bdf6f603244bb0b739344938c6689141ab37ce",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-04-21T07:26:40Z",
    "title_canon_sha256": "4036102049c8b357aabe434402fadbf1669bf2b4072ade3bd571c079e5bfca5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3639",
    "kind": "arxiv",
    "version": 1
  }
}