Pith Number

pith:PXTCC2E4

pith:2013:PXTCC2E4R4BI3FI4FXEQ4K73GY

not attested not anchored not stored refs pending

Triangulations, orientals, and skew monoidal categories

Ross Street, Stephen Lack

arxiv:1302.4488 v1 · 2013-02-19 · math.CT · math.AT · math.CO · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PXTCC2E4R4BI3FI4FXEQ4K73GY}

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	2026-05-18T02:51:34.309070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7de621689c8f028d951c2dc90e2bfb3625f2ea658684913d0c1aae210eb66bce

Aliases

arxiv: 1302.4488 · arxiv_version: 1302.4488v1 · doi: 10.48550/arxiv.1302.4488 · pith_short_12: PXTCC2E4R4BI · pith_short_16: PXTCC2E4R4BI3FI4 · pith_short_8: PXTCC2E4

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/PXTCC2E4R4BI3FI4FXEQ4K73GY \
  | 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: 7de621689c8f028d951c2dc90e2bfb3625f2ea658684913d0c1aae210eb66bce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfc045a1f2a46ac6c270b10dcc5414399ec5e97feb7c7d64d208e186e976c9b3",
    "cross_cats_sorted": [
      "math.AT",
      "math.CO",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2013-02-19T00:03:14Z",
    "title_canon_sha256": "c71992f4a5c4252c18e4760070f34cde75d47ed65ae3af530627328d295eae88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4488",
    "kind": "arxiv",
    "version": 1
  }
}