Pith Number

pith:MPUILMLS

pith:2014:MPUILMLSA7CSYYHTLNIISR354O

not attested not anchored not stored refs pending

The homology of the Higman-Thompson groups

Markus Szymik, Nathalie Wahl

arxiv:1411.5035 v5 · 2014-11-18 · math.GR · math.AT · math.GT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MPUILMLSA7CSYYHTLNIISR354O}

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	2026-05-17T23:45:21.392087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63e885b17207c52c60f35b5089477de390c4c28b3530833302c84a46aaddfdac

Aliases

arxiv: 1411.5035 · arxiv_version: 1411.5035v5 · doi: 10.48550/arxiv.1411.5035 · pith_short_12: MPUILMLSA7CS · pith_short_16: MPUILMLSA7CSYYHT · pith_short_8: MPUILMLS

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/MPUILMLSA7CSYYHTLNIISR354O \
  | 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: 63e885b17207c52c60f35b5089477de390c4c28b3530833302c84a46aaddfdac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c993ef7c25e7b48c206a86aedd8652d4cf6a79bb27e22843e83aa8cabac5f6dc",
    "cross_cats_sorted": [
      "math.AT",
      "math.GT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-11-18T21:06:45Z",
    "title_canon_sha256": "4cd09c427c796bf4e4a4cf50d666b348f9bcd5dc63e419627dee13aca91e5941"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.5035",
    "kind": "arxiv",
    "version": 5
  }
}