Pith Number

pith:EVPPHCX4

pith:2023:EVPPHCX4I2XMO35ZIDYOJL5LGY

not attested not anchored not stored refs pending

Basic ZX-calculus for students and professionals

Bob Coecke

arxiv:2303.03163 v1 · 2023-03-06 · quant-ph · cs.LO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EVPPHCX4I2XMO35ZIDYOJL5LGY}

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.

Cited by

1 paper in Pith

String Diagrams for Quantum Foundations, Computing and Natural Language Processing

Receipt and verification

First computed	2026-07-05T05:48:19.610843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

255ef38afc46aec76fb940f0e4afab360a0da6cad0f5dc1486dae77cfb1c5645

Aliases

arxiv: 2303.03163 · arxiv_version: 2303.03163v1 · doi: 10.48550/arxiv.2303.03163 · pith_short_12: EVPPHCX4I2XM · pith_short_16: EVPPHCX4I2XMO35Z · pith_short_8: EVPPHCX4

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/EVPPHCX4I2XMO35ZIDYOJL5LGY \
  | 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: 255ef38afc46aec76fb940f0e4afab360a0da6cad0f5dc1486dae77cfb1c5645

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d879208249a5f87567f5db24251a7a4f5c4f8e04feb2a6fcc346843f3d2dcc3",
    "cross_cats_sorted": [
      "cs.LO",
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-03-06T14:25:42Z",
    "title_canon_sha256": "4482fa400a17bc133610b77d24876bca0943586042811d9c0473a6bf9997b8b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.03163",
    "kind": "arxiv",
    "version": 1
  }
}