Pith Number

pith:KMWJCU5P

pith:2022:KMWJCU5PM6VK5MXOAKDM6KPMQO

not attested not anchored not stored refs pending

Irreducibility of Some Nested Hilbert Schemes

Chandranandan Gangopadhyay, Parvez Rasul, Ronnie Sebastian

arxiv:2209.09003 v2 · 2022-09-19 · 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{KMWJCU5PM6VK5MXOAKDM6KPMQO}

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	2026-07-05T07:07:04.949631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

532c9153af67aaaeb2ee0286cf29ec83873192e43cfb724390f0512dd9bc5f1c

Aliases

arxiv: 2209.09003 · arxiv_version: 2209.09003v2 · doi: 10.48550/arxiv.2209.09003 · pith_short_12: KMWJCU5PM6VK · pith_short_16: KMWJCU5PM6VK5MXO · pith_short_8: KMWJCU5P

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/KMWJCU5PM6VK5MXOAKDM6KPMQO \
  | 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: 532c9153af67aaaeb2ee0286cf29ec83873192e43cfb724390f0512dd9bc5f1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dfb41c60922c87940d193be1f09e3f6fce4c0c040342ee575e13d686b6e47ed",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2022-09-19T13:27:02Z",
    "title_canon_sha256": "63a4c80d226432718f79709f42103ca6900c4645faf063258c115606c1b09805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.09003",
    "kind": "arxiv",
    "version": 2
  }
}