Pith Number

pith:KETUMBQN

pith:2010:KETUMBQNYX2JIACSFL57F2BY3I

not attested not anchored not stored refs pending

Four-qubit entanglement from string theory

A. Marrani, D. Dahanayake, L. Borsten, M. J. Duff, W. Rubens

arxiv:1005.4915 v2 · 2010-05-26 · 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{KETUMBQNYX2JIACSFL57F2BY3I}

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	2026-05-18T04:41:27.274718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

512746060dc5f49400522afbf2e838da165751f7eef6f72d6b48abf64db1834a

Aliases

arxiv: 1005.4915 · arxiv_version: 1005.4915v2 · doi: 10.48550/arxiv.1005.4915 · pith_short_12: KETUMBQNYX2J · pith_short_16: KETUMBQNYX2JIACS · pith_short_8: KETUMBQN

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/KETUMBQNYX2JIACSFL57F2BY3I \
  | 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: 512746060dc5f49400522afbf2e838da165751f7eef6f72d6b48abf64db1834a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f13c4c14f0621626d2b374c184f543f35f308c21a11d9e27665d07db4a65fd",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-05-26T19:26:13Z",
    "title_canon_sha256": "e56e5ca01ecf98ec694e955397c51db5848af3d79f8dcb2cd393a347d12edc37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4915",
    "kind": "arxiv",
    "version": 2
  }
}