Pith Number

pith:S75WVACP

pith:2015:S75WVACPNVPQPZRTMJZ4L76X3E

not attested not anchored not stored refs pending

Automorphism Groups of Generic Structures: Extreme Amenability and Amenability

Hamed Khalilian, Massoud Pourmahdian, Zaniar Ghadernezhad

arxiv:1508.04628 v2 · 2015-08-19 · math.LO · math.CO · math.DS · 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{S75WVACPNVPQPZRTMJZ4L76X3E}

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	2026-05-18T01:03:31.082646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97fb6a804f6d5f07e6336273c5ffd7d92f06829da77f1cb0456d351514cd332d

Aliases

arxiv: 1508.04628 · arxiv_version: 1508.04628v2 · doi: 10.48550/arxiv.1508.04628 · pith_short_12: S75WVACPNVPQ · pith_short_16: S75WVACPNVPQPZRT · pith_short_8: S75WVACP

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/S75WVACPNVPQPZRTMJZ4L76X3E \
  | 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: 97fb6a804f6d5f07e6336273c5ffd7d92f06829da77f1cb0456d351514cd332d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "707f37d4cf4ea19f8b8acbe5be792f8f8563188d4bd7457aea53671425fdaefc",
    "cross_cats_sorted": [
      "math.CO",
      "math.DS",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-08-19T13:02:41Z",
    "title_canon_sha256": "37cb641f8dd399a3effafc3fba90a10ffbae792fe7355073ae7171428c2a1058"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04628",
    "kind": "arxiv",
    "version": 2
  }
}