Pith Number

pith:IRMW6EZW

pith:2010:IRMW6EZWD7NFOYQUL3CODQDYBH

not attested not anchored not stored refs pending

Entangled graphs: A classification of four-qubit entanglement

Masoud Gharahi Ghahi, Seyed Javad Akhtarshenas

arxiv:1003.2762 v2 · 2010-03-14 · 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{IRMW6EZWD7NFOYQUL3CODQDYBH}

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	2026-05-18T01:16:28.058871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44596f13361fda5762145ec4e1c07809f8d9c67b87e03802905c10bc3a24a729

Aliases

arxiv: 1003.2762 · arxiv_version: 1003.2762v2 · doi: 10.48550/arxiv.1003.2762 · pith_short_12: IRMW6EZWD7NF · pith_short_16: IRMW6EZWD7NFOYQU · pith_short_8: IRMW6EZW

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/IRMW6EZWD7NFOYQUL3CODQDYBH \
  | 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: 44596f13361fda5762145ec4e1c07809f8d9c67b87e03802905c10bc3a24a729

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5d53df6c1fa80cf2d6d6531e48aaaa907fb81b0759d01f0d2a04be04a40ed52",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-03-14T06:19:34Z",
    "title_canon_sha256": "6e6ce15db95f01fa9c4f4ce6b8871626daa992e94e5a58ac63accc198bfd810a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.2762",
    "kind": "arxiv",
    "version": 2
  }
}