Pith Number

pith:LZEXIR6T

pith:2015:LZEXIR6TAZCMFPDXXP4DUCJ7CN

not attested not anchored not stored refs pending

Groups acting on trees with almost prescribed local action

Adrien Le Boudec

arxiv:1505.01363 v2 · 2015-05-06 · 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{LZEXIR6TAZCMFPDXXP4DUCJ7CN}

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	2026-05-18T01:20:29.585181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e497447d30644c2bc77bbf83a093f1370e7d1444ed8f9af8240ef3d33fbc6e9

Aliases

arxiv: 1505.01363 · arxiv_version: 1505.01363v2 · doi: 10.48550/arxiv.1505.01363 · pith_short_12: LZEXIR6TAZCM · pith_short_16: LZEXIR6TAZCMFPDX · pith_short_8: LZEXIR6T

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/LZEXIR6TAZCMFPDXXP4DUCJ7CN \
  | 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: 5e497447d30644c2bc77bbf83a093f1370e7d1444ed8f9af8240ef3d33fbc6e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81ca61268f0a4c7569568d7bec02c4ed778dfab036291682bb39408a2a894683",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2015-05-06T13:45:52Z",
    "title_canon_sha256": "43f4bd47676749c1459b02102ce2169a73bd46c717e3af90940cd6328d961c53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01363",
    "kind": "arxiv",
    "version": 2
  }
}