Pith Number

pith:XNNZNB6L

pith:2017:XNNZNB6LYCKYXOD2NAEAF6WWRN

not attested not anchored not stored refs pending

Open subgroups of the automorphism group of a right-angled building

Ana C. Silva, Tom De Medts

arxiv:1711.01057 v3 · 2017-11-03 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XNNZNB6LYCKYXOD2NAEAF6WWRN}

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	2026-05-17T23:56:58.747510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb5b9687cbc0958bb87a680802fad68b7d546c548ec97e24da68112c97fb047a

Aliases

arxiv: 1711.01057 · arxiv_version: 1711.01057v3 · doi: 10.48550/arxiv.1711.01057 · pith_short_12: XNNZNB6LYCKY · pith_short_16: XNNZNB6LYCKYXOD2 · pith_short_8: XNNZNB6L

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/XNNZNB6LYCKYXOD2NAEAF6WWRN \
  | 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: bb5b9687cbc0958bb87a680802fad68b7d546c548ec97e24da68112c97fb047a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2785a2370af62a7c21a14482a4caa4b223e4b68a136b80b83acd126a9b9da216",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-11-03T08:13:54Z",
    "title_canon_sha256": "d06d5dd3dd0d729c04f3b3b8bc688a8476b083ff588ccfb7c030247dd97d9b3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.01057",
    "kind": "arxiv",
    "version": 3
  }
}