Pith Number

pith:Z6E2JDIS

pith:2026:Z6E2JDIS6YI5T4Z6PEF3OGE34I

not attested not anchored not stored refs pending

Generalized inverse diagrams in tribes

El Mehdi Cherradi

arxiv:2602.17355 v2 · 2026-02-19 · math.CT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z6E2JDIS6YI5T4Z6PEF3OGE34I}

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	2026-06-05T00:13:45.660204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf89a48d12f611d9f33e790bb7189be233345daebdc32a5c45480b06e298fc74

Aliases

arxiv: 2602.17355 · arxiv_version: 2602.17355v2 · doi: 10.48550/arxiv.2602.17355 · pith_short_12: Z6E2JDIS6YI5 · pith_short_16: Z6E2JDIS6YI5T4Z6 · pith_short_8: Z6E2JDIS

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/Z6E2JDIS6YI5T4Z6PEF3OGE34I \
  | 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: cf89a48d12f611d9f33e790bb7189be233345daebdc32a5c45480b06e298fc74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98b1b1fc97592f0624d4f0bb3d20520c1920c7b44fd6d10a283c5d2e5cf5f0f4",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2026-02-19T13:37:10Z",
    "title_canon_sha256": "e9d0abc6924f6da0452e0463d6e88db8ae9aeaf7a7145ce940458abe573a8690"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.17355",
    "kind": "arxiv",
    "version": 2
  }
}