Pith Number

pith:3AAKUBCL

pith:2014:3AAKUBCL54EEMS5OYGUO4ARKF2

not attested not anchored not stored refs pending

Free amalgamation and automorphism groups

Andreas Baudisch

arxiv:1406.1130 v1 · 2014-06-04 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3AAKUBCL54EEMS5OYGUO4ARKF2}

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	2026-05-18T02:50:24.816912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d800aa044bef08464baec1a8ee022a2eb8f1e0ba47fcdd00b866d36024d6eaf0

Aliases

arxiv: 1406.1130 · arxiv_version: 1406.1130v1 · doi: 10.48550/arxiv.1406.1130 · pith_short_12: 3AAKUBCL54EE · pith_short_16: 3AAKUBCL54EEMS5O · pith_short_8: 3AAKUBCL

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/3AAKUBCL54EEMS5OYGUO4ARKF2 \
  | 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: d800aa044bef08464baec1a8ee022a2eb8f1e0ba47fcdd00b866d36024d6eaf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "263de60c7aa3b1344e0c3175e763932e5636c2723da7cae24570a5c521e926c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-06-04T18:11:47Z",
    "title_canon_sha256": "848fa29ccf08df86007e0738b1f432a6e0e757773903919d7697131a7ddb7e58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1130",
    "kind": "arxiv",
    "version": 1
  }
}