Pith Number

pith:QSYGIBHJ

pith:2018:QSYGIBHJQAR4CZWLCBFUV5SBH4

not attested not anchored not stored refs pending

The PPT square conjecture holds generically for some classes of independent states

Beno\^it Collins, Ping Zhong, Zhi Yin

arxiv:1803.00143 v1 · 2018-03-01 · math-ph · math.MP · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSYGIBHJQAR4CZWLCBFUV5SBH4}

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	2026-05-17T23:52:44.228279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84b06404e98023c166cb104b4af6413f1eae9785daee4ec0842d36ab4c4ec4ee

Aliases

arxiv: 1803.00143 · arxiv_version: 1803.00143v1 · doi: 10.48550/arxiv.1803.00143 · pith_short_12: QSYGIBHJQAR4 · pith_short_16: QSYGIBHJQAR4CZWL · pith_short_8: QSYGIBHJ

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/QSYGIBHJQAR4CZWLCBFUV5SBH4 \
  | 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: 84b06404e98023c166cb104b4af6413f1eae9785daee4ec0842d36ab4c4ec4ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dd51ef08182361303464bbca33226ae3e052c7c442859d6b9d381432a2f0546",
    "cross_cats_sorted": [
      "math.MP",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-03-01T00:21:38Z",
    "title_canon_sha256": "877d01e81df5b295b3ccb2655541fbb331d0fda531ed08d33cc907d9a23cce32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00143",
    "kind": "arxiv",
    "version": 1
  }
}