Pith Number

pith:2JZ4DRZM

pith:2013:2JZ4DRZMPSPXMC6Z4J5T3C36UY

not attested not anchored not stored refs pending

K-theory, LQEL manifolds and Severi varieties

Oliver Nash

arxiv:1308.0949 v2 · 2013-08-05 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2JZ4DRZMPSPXMC6Z4J5T3C36UY}

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	2026-05-18T02:38:17.125685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d273c1c72c7c9f760bd9e27b3d8b7ea61630d2bb6d676d75a9edd7200078b6e1

Aliases

arxiv: 1308.0949 · arxiv_version: 1308.0949v2 · doi: 10.48550/arxiv.1308.0949 · pith_short_12: 2JZ4DRZMPSPX · pith_short_16: 2JZ4DRZMPSPXMC6Z · pith_short_8: 2JZ4DRZM

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/2JZ4DRZMPSPXMC6Z4J5T3C36UY \
  | 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: d273c1c72c7c9f760bd9e27b3d8b7ea61630d2bb6d676d75a9edd7200078b6e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91bf68e807a6705b12966af0123254b5312856b7758b2e1052f69fdc5e95ad66",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-08-05T11:45:40Z",
    "title_canon_sha256": "1bb3fca0b9e14b6401bbfc70ca509601e83688b70bf14ceabf197f5a7460be02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0949",
    "kind": "arxiv",
    "version": 2
  }
}