Pith Number

pith:7V7GSMYF

pith:2013:7V7GSMYFQHLRC335STLQMZZTNF

not attested not anchored not stored refs pending

A quantitative witness for Greenberger-Horne-Zeilinger entanglement

Christopher Eltschka, Jens Siewert

arxiv:1305.1930 v1 · 2013-05-08 · 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{7V7GSMYFQHLRC335STLQMZZTNF}

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	2026-05-18T03:26:09.748808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd7e69330581d7116f7d94d7066733694484aa404d443e499283b41d344fdc58

Aliases

arxiv: 1305.1930 · arxiv_version: 1305.1930v1 · doi: 10.48550/arxiv.1305.1930 · pith_short_12: 7V7GSMYFQHLR · pith_short_16: 7V7GSMYFQHLRC335 · pith_short_8: 7V7GSMYF

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/7V7GSMYFQHLRC335STLQMZZTNF \
  | 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: fd7e69330581d7116f7d94d7066733694484aa404d443e499283b41d344fdc58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ded97280cd3f9a37818a62d307f4ed5c092f2ee4aea76e28f943b0a8f566e45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-05-08T20:00:02Z",
    "title_canon_sha256": "42d4d9dea568b7f2c586f7618fb89ca1c6dcf61a413790e4462a5a842b0c40e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1930",
    "kind": "arxiv",
    "version": 1
  }
}