Pith Number

pith:VP4ABSEB

pith:2026:VP4ABSEBFBB7E44FGTKAFG24Z4

not attested not anchored not stored refs pending

Zero cycles on Severi--Brauer flag varieties

Amit Hogadi, Divyasree C-Ramachandran

arxiv:2605.20053 v1 · 2026-05-19 · 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{VP4ABSEBFBB7E44FGTKAFG24Z4}

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	2026-05-20T02:06:00.291035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abf800c8812843f2738534d4029b5ccf35decf1ab1367963b7ba2fac65cc04c6

Aliases

arxiv: 2605.20053 · arxiv_version: 2605.20053v1 · doi: 10.48550/arxiv.2605.20053 · pith_short_12: VP4ABSEBFBB7 · pith_short_16: VP4ABSEBFBB7E44F · pith_short_8: VP4ABSEB

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/VP4ABSEBFBB7E44FGTKAFG24Z4 \
  | 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: abf800c8812843f2738534d4029b5ccf35decf1ab1367963b7ba2fac65cc04c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1034614e5f05b31f99de04bb8fe658eec88dd940c707ab386ff75cef3ae97bd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-05-19T16:11:57Z",
    "title_canon_sha256": "3340c4fb9df723d7da4caa3e5762a1642ed3489ac0f3974e0cdeeec4e913727c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20053",
    "kind": "arxiv",
    "version": 1
  }
}