Pith Number

pith:R7XZW3SY

pith:2015:R7XZW3SYPKENFXTWCUNK5VNKTY

not attested not anchored not stored refs pending

Semi-Cosimplicial Objects and Spreadability

Claus K\"ostler, D. Gwion Evans, Rolf Gohm

arxiv:1508.03168 v3 · 2015-08-13 · math.OA · math.KT · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R7XZW3SYPKENFXTWCUNK5VNKTY}

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	2026-05-18T01:19:44.302073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fef9b6e587a88d2de76151aaed5aa9e08d7d6f9d5044977796d99b81e003f6d

Aliases

arxiv: 1508.03168 · arxiv_version: 1508.03168v3 · doi: 10.48550/arxiv.1508.03168 · pith_short_12: R7XZW3SYPKEN · pith_short_16: R7XZW3SYPKENFXTW · pith_short_8: R7XZW3SY

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/R7XZW3SYPKENFXTWCUNK5VNKTY \
  | 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: 8fef9b6e587a88d2de76151aaed5aa9e08d7d6f9d5044977796d99b81e003f6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35c46b4e7bc45481e30d41b9e38cc5f9d43ea0d382c24b10bbc8a637cdfd859e",
    "cross_cats_sorted": [
      "math.KT",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2015-08-13T10:38:22Z",
    "title_canon_sha256": "db46d888b99d6a944478c322acc3c73e555464325aab0e4386f9b2825cfca997"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03168",
    "kind": "arxiv",
    "version": 3
  }
}