Pith Number

pith:2SU37U2I

pith:2011:2SU37U2ISSUZQO5JUS3GD3AOTX

not attested not anchored not stored refs pending

Spans in 2-Categories: A monoidal tricategory

Alexander E. Hoffnung

arxiv:1112.0560 v2 · 2011-12-02 · 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{2SU37U2ISSUZQO5JUS3GD3AOTX}

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	2026-05-18T03:13:00.530494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4a9bfd34894a9983ba9a4b661ec0e9dfa4b5bf810e2877da8de28ae04b5fff2

Aliases

arxiv: 1112.0560 · arxiv_version: 1112.0560v2 · doi: 10.48550/arxiv.1112.0560 · pith_short_12: 2SU37U2ISSUZ · pith_short_16: 2SU37U2ISSUZQO5J · pith_short_8: 2SU37U2I

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/2SU37U2ISSUZQO5JUS3GD3AOTX \
  | 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: d4a9bfd34894a9983ba9a4b661ec0e9dfa4b5bf810e2877da8de28ae04b5fff2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e64885fc3dfa789abfb8ebb8a1e05c76b0ac3bcda694f88505b28d1f5866695",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2011-12-02T20:42:27Z",
    "title_canon_sha256": "5819d94782e464cf45f060afa26d70fd33ad2f42c160ac3a4bdf96dd6c851520"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0560",
    "kind": "arxiv",
    "version": 2
  }
}