Pith Number

pith:ESNOTWOS

pith:2019:ESNOTWOSWSC2BD7BPYKYKW6VAY

not attested not anchored not stored refs pending

Ore extensions for function algebras

Alex Tumwesigye, Johan Richter, Sergei Silvestrov

arxiv:1902.04430 v2 · 2019-02-12 · 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{ESNOTWOSWSC2BD7BPYKYKW6VAY}

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	2026-05-17T23:53:56.995623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

249ae9d9d2b485a08fe17e15855bd5063ec74359bf152588b5294f2ae3e61c63

Aliases

arxiv: 1902.04430 · arxiv_version: 1902.04430v2 · doi: 10.48550/arxiv.1902.04430 · pith_short_12: ESNOTWOSWSC2 · pith_short_16: ESNOTWOSWSC2BD7B · pith_short_8: ESNOTWOS

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/ESNOTWOSWSC2BD7BPYKYKW6VAY \
  | 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: 249ae9d9d2b485a08fe17e15855bd5063ec74359bf152588b5294f2ae3e61c63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cff741e249d9b082542310cf1d50018bab25da53a89c3beb91283fdf4068a91b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-02-12T15:08:47Z",
    "title_canon_sha256": "c6ec223c338e6b8eae82a54b9a8a1cb31217b185b15d572c119e57042e5ef1ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04430",
    "kind": "arxiv",
    "version": 2
  }
}