Pith Number

pith:2I2CB4O3

pith:2008:2I2CB4O3X32BF2ORR6I4L4URER

not attested not anchored not stored refs pending

Notions of Lawvere theory

Jiri Rosicky, Stephen Lack

arxiv:0810.2578 v2 · 2008-10-15 · 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{2I2CB4O3X32BF2ORR6I4L4URER}

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	2026-05-18T04:24:35.429739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d23420f1dbbef412e9d18f91c5f2912442ba9f858b2151fcfb19930115269183

Aliases

arxiv: 0810.2578 · arxiv_version: 0810.2578v2 · doi: 10.48550/arxiv.0810.2578 · pith_short_12: 2I2CB4O3X32B · pith_short_16: 2I2CB4O3X32BF2OR · pith_short_8: 2I2CB4O3

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/2I2CB4O3X32BF2ORR6I4L4URER \
  | 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: d23420f1dbbef412e9d18f91c5f2912442ba9f858b2151fcfb19930115269183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cc45b7f1a72b8402e84714f8e5b8407d9bdeff2f66ac567ca0d8a8ac418666a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2008-10-15T00:18:56Z",
    "title_canon_sha256": "d881b7d4c80b262a8f7c8a7f4c304c442a220b0ec0a7b37d3dbf3645d8890605"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.2578",
    "kind": "arxiv",
    "version": 2
  }
}