Pith Number

pith:U4RIN3RA

pith:2008:U4RIN3RAMEAE2VR77Q74AURO3X

not attested not anchored not stored refs pending

Alternative algebras with the hyperbolic property

A.C. Souza Filho, C. Polcino Milies, S. O. Juriaans

arxiv:0810.4544 v6 · 2008-10-24 · math.GR · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4RIN3RAMEAE2VR77Q74AURO3X}

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	2026-05-18T04:30:14.801597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a72286ee2061004d563ffc3fc0522eddfff6ed1c200d2f78f7e8b76c0b71c39d

Aliases

arxiv: 0810.4544 · arxiv_version: 0810.4544v6 · doi: 10.48550/arxiv.0810.4544 · pith_short_12: U4RIN3RAMEAE · pith_short_16: U4RIN3RAMEAE2VR7 · pith_short_8: U4RIN3RA

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/U4RIN3RAMEAE2VR77Q74AURO3X \
  | 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: a72286ee2061004d563ffc3fc0522eddfff6ed1c200d2f78f7e8b76c0b71c39d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34a9af5f0edd1d93290cd18298f759182d9fd9becfc933c650ebce07df4a9626",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2008-10-24T22:52:36Z",
    "title_canon_sha256": "879ce25fa967268d68cfd0a2f6548e18e8c82e5eaf3d810871368a6d792f0d21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.4544",
    "kind": "arxiv",
    "version": 6
  }
}