Pith Number

pith:E753O4BS

pith:2023:E753O4BSRD6T7HSOSMGIVHUP6Y

not attested not anchored not stored refs pending

Unextendible product bases from orthogonality graphs

Fei Shi, Ge Bai, Giulio Chiribella, Qi Zhao, Xiande Zhang

arxiv:2303.02553 v1 · 2023-03-05 · 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{E753O4BSRD6T7HSOSMGIVHUP6Y}

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	2026-07-05T05:48:12.760631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27fbb7703288fd3f9e4e930c8a9e8ff622ad64ecc23621a3d644fb7345c2b155

Aliases

arxiv: 2303.02553 · arxiv_version: 2303.02553v1 · doi: 10.48550/arxiv.2303.02553 · pith_short_12: E753O4BSRD6T · pith_short_16: E753O4BSRD6T7HSO · pith_short_8: E753O4BS

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/E753O4BSRD6T7HSOSMGIVHUP6Y \
  | 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: 27fbb7703288fd3f9e4e930c8a9e8ff622ad64ecc23621a3d644fb7345c2b155

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2703592ff422c3c9de266fab72801853d96bfd41513dfe190c25287a94dee283",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-03-05T02:33:22Z",
    "title_canon_sha256": "a08a74cea561dab4c1c32c3a645971d4c4563cca78f39d2f98fb6985e0d50677"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.02553",
    "kind": "arxiv",
    "version": 1
  }
}