Pith Number

pith:YHPEUYJE

pith:2023:YHPEUYJEFE2KXJSEPUWLVTCXNV

not attested not anchored not stored refs pending

Obstructions to Compositionality

Amar Hadzihasanovic, Bob Coecke, Caterina Puca, Fabrizio Genovese

arxiv:2307.14461 v2 · 2023-07-26 · math.CT · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YHPEUYJEFE2KXJSEPUWLVTCXNV}

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	2026-07-05T07:23:59.138994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1de4a61242934aba6447d2cbacc576d6da4cc36b96a16f39d7f3b2d7e855cc0

Aliases

arxiv: 2307.14461 · arxiv_version: 2307.14461v2 · doi: 10.48550/arxiv.2307.14461 · pith_short_12: YHPEUYJEFE2K · pith_short_16: YHPEUYJEFE2KXJSE · pith_short_8: YHPEUYJE

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/YHPEUYJEFE2KXJSEPUWLVTCXNV \
  | 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: c1de4a61242934aba6447d2cbacc576d6da4cc36b96a16f39d7f3b2d7e855cc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d902185f497c6ecab1a0d70ed9d2ddbddc72587ea7d19961866ccdacaa33f43",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2023-07-26T19:06:39Z",
    "title_canon_sha256": "f1458350426c6d29f03316e56a007639b4f99c28010ce6df38d075b940b4f82b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.14461",
    "kind": "arxiv",
    "version": 2
  }
}