Pith Number

pith:I6KNLWBJ

pith:2002:I6KNLWBJA4ZK2W4OBOPYSHVU4A

not attested not anchored not stored refs pending

A purely infinite AH-algebra and an application to AF-embeddability

Mikael Rordam

arxiv:math/0205292 v2 · 2002-05-28 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I6KNLWBJA4ZK2W4OBOPYSHVU4A}

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	2026-05-18T04:34:54.547926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4794d5d8290732ad5b8e0b9f891eb4e029ca615010392e3547d9e5c38d7358e1

Aliases

arxiv: math/0205292 · arxiv_version: math/0205292v2 · doi: 10.48550/arxiv.math/0205292 · pith_short_12: I6KNLWBJA4ZK · pith_short_16: I6KNLWBJA4ZK2W4O · pith_short_8: I6KNLWBJ

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/I6KNLWBJA4ZK2W4OBOPYSHVU4A \
  | 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: 4794d5d8290732ad5b8e0b9f891eb4e029ca615010392e3547d9e5c38d7358e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d52f7fc893b13878ad722f797e197375e69081f22da81d53dff91a735948a3c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.OA",
    "submitted_at": "2002-05-28T08:28:59Z",
    "title_canon_sha256": "814e70883bea9799227ab62fc95ff95d9e4e3979d3442d980964313feaf08925"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0205292",
    "kind": "arxiv",
    "version": 2
  }
}