Pith Number

pith:22UEYOD3

pith:2020:22UEYOD35U2Y76AUVGYRBLDX6K

not attested not anchored not stored refs pending

Cohomological rigidity for Fano Bott manifolds

Akihiro Higashitani, Kazuki Kurimoto

arxiv:2008.05811 v1 · 2020-08-13 · math.AT · math.AG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{22UEYOD35U2Y76AUVGYRBLDX6K}

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	2026-07-05T01:26:57.726562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6a84c387bed358ff814a9b110ac77f29e9898a03c8675a6c0edae4754182a6b

Aliases

arxiv: 2008.05811 · arxiv_version: 2008.05811v1 · doi: 10.48550/arxiv.2008.05811 · pith_short_12: 22UEYOD35U2Y · pith_short_16: 22UEYOD35U2Y76AU · pith_short_8: 22UEYOD3

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/22UEYOD35U2Y76AUVGYRBLDX6K \
  | 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: d6a84c387bed358ff814a9b110ac77f29e9898a03c8675a6c0edae4754182a6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b96229e55a1027422ac77eff781304b27310e4e9aeb7113bb4a0fb9d119112be",
    "cross_cats_sorted": [
      "math.AG",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2020-08-13T10:56:04Z",
    "title_canon_sha256": "42b889003fabe9e66bab0a3b18c92d603302ad4633c34b24bac7b0550e7a8de9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.05811",
    "kind": "arxiv",
    "version": 1
  }
}