Pith Number

pith:ZWF6IEPK

pith:2015:ZWF6IEPKHUQP2UUO47WKPSRA72

not attested not anchored not stored refs pending

How far can we go with Amitsur's theorem?

Agata Smoktunowicz

arxiv:1504.01341 v4 · 2015-04-06 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZWF6IEPKHUQP2UUO47WKPSRA72}

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	2026-05-18T00:46:32.209360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd8be411ea3d20fd528ee7eca7ca20fe87af1f81a70a2af1941cb8874ee808d7

Aliases

arxiv: 1504.01341 · arxiv_version: 1504.01341v4 · doi: 10.48550/arxiv.1504.01341 · pith_short_12: ZWF6IEPKHUQP · pith_short_16: ZWF6IEPKHUQP2UUO · pith_short_8: ZWF6IEPK

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/ZWF6IEPKHUQP2UUO47WKPSRA72 \
  | 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: cd8be411ea3d20fd528ee7eca7ca20fe87af1f81a70a2af1941cb8874ee808d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cf0a78143ed6c04eefc4734f7fa1e9234796f0e42b9a938fdc50715676f15f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-04-06T18:10:27Z",
    "title_canon_sha256": "627bafca938e7ae7cc6b944e71674c9ebbd96dd2a19888b1e47ab97929b65b5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01341",
    "kind": "arxiv",
    "version": 4
  }
}