Pith Number

pith:2WEEIIG4

pith:2025:2WEEIIG4ZCR5HWBKCE2OKIH5DR

not attested not anchored not stored refs pending

Approximating fixed size quantum correlations in polynomial time

Gereon Ko{\ss}mann, Julius A. Zeiss, Mario Berta, Omar Fawzi

arxiv:2507.12302 v1 · 2025-07-16 · 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{2WEEIIG4ZCR5HWBKCE2OKIH5DR}

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	2026-07-05T11:38:18.029278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5884420dcc8a3d3d82a1134e520fd1c5a3290a4e3a80e5db50fe1643586ac3f

Aliases

arxiv: 2507.12302 · arxiv_version: 2507.12302v1 · doi: 10.48550/arxiv.2507.12302 · pith_short_12: 2WEEIIG4ZCR5 · pith_short_16: 2WEEIIG4ZCR5HWBK · pith_short_8: 2WEEIIG4

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/2WEEIIG4ZCR5HWBKCE2OKIH5DR \
  | 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: d5884420dcc8a3d3d82a1134e520fd1c5a3290a4e3a80e5db50fe1643586ac3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e8098577d040ce6643287d3df9829e919d4bf7d4eeab0927c27f5d250a76959",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-16T15:01:45Z",
    "title_canon_sha256": "387885c879224506f7dcf01525873e993083aaa5c19831b6a883505cda2c7e29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.12302",
    "kind": "arxiv",
    "version": 1
  }
}