Pith Number

pith:ENF7FBYD

pith:2009:ENF7FBYDNTPE2TX5PCJIRHTRLM

not attested not anchored not stored refs pending

Smash-nilpotent cycles on abelian 3-folds

Bruno Kahn (IMJ), Ronnie Sebastian (TIFR)

arxiv:0908.1927 v1 · 2009-08-13 · 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{ENF7FBYDNTPE2TX5PCJIRHTRLM}

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	2026-05-18T02:28:13.695724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

234bf287036cde4d4efd7892889e715b39c8e2f385fc42dda28e1dead90e88f4

Aliases

arxiv: 0908.1927 · arxiv_version: 0908.1927v1 · doi: 10.48550/arxiv.0908.1927 · pith_short_12: ENF7FBYDNTPE · pith_short_16: ENF7FBYDNTPE2TX5 · pith_short_8: ENF7FBYD

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/ENF7FBYDNTPE2TX5PCJIRHTRLM \
  | 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: 234bf287036cde4d4efd7892889e715b39c8e2f385fc42dda28e1dead90e88f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ff220bd96a26c6ba51aec1c1e0a2d377af858aa08b821f8081ed56e2f58c916",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-08-13T16:16:58Z",
    "title_canon_sha256": "1d4483925b6010b9fcb7e3b7f24831f879464aaf967787162d085c10cd09efc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1927",
    "kind": "arxiv",
    "version": 1
  }
}