Pith Number

pith:UIKM4TZ5

pith:2008:UIKM4TZ5UC2KAEFRDTA2Q6QHTM

not attested not anchored not stored refs pending

On Bass' question for finitely generated algebras over large fields

Joseph Gubeladze

arxiv:0803.1681 v2 · 2008-03-11 · math.KT · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UIKM4TZ5UC2KAEFRDTA2Q6QHTM}

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	2026-05-18T02:58:11.731369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a214ce4f3da0b4a010b11cc1a87a079b00086944971873d799b7bdbe9611ddef

Aliases

arxiv: 0803.1681 · arxiv_version: 0803.1681v2 · doi: 10.48550/arxiv.0803.1681 · pith_short_12: UIKM4TZ5UC2K · pith_short_16: UIKM4TZ5UC2KAEFR · pith_short_8: UIKM4TZ5

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/UIKM4TZ5UC2KAEFRDTA2Q6QHTM \
  | 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: a214ce4f3da0b4a010b11cc1a87a079b00086944971873d799b7bdbe9611ddef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "975bbdb43a8972c32e89fae249891f4c02440a217f8ea3deb68b88518311bf39",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2008-03-11T21:51:28Z",
    "title_canon_sha256": "3e9d5fb1c4f9cea3b5259fb0dfd8dc36f016a816491e28f99fe8fc1736af63db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.1681",
    "kind": "arxiv",
    "version": 2
  }
}