Pith Number

pith:A2KI3PIZ

pith:2025:A2KI3PIZJPHXZYEKGDA4QF4CSF

not attested not anchored not stored refs pending

Hilbert schemes of points and Fulton-MacPherson compactifications

Denis Nesterov

arxiv:2501.08269 v1 · 2025-01-14 · 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{A2KI3PIZJPHXZYEKGDA4QF4CSF}

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	2026-07-05T10:00:58.653182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06948dbd194bcf7ce08a30c1c817829171b23d65745680450f784108eee3bf46

Aliases

arxiv: 2501.08269 · arxiv_version: 2501.08269v1 · doi: 10.48550/arxiv.2501.08269 · pith_short_12: A2KI3PIZJPHX · pith_short_16: A2KI3PIZJPHXZYEK · pith_short_8: A2KI3PIZ

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/A2KI3PIZJPHXZYEKGDA4QF4CSF \
  | 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: 06948dbd194bcf7ce08a30c1c817829171b23d65745680450f784108eee3bf46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "155a274ef433e046f88dc8241d750d750af3727b1250da9db25062ba669df5db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-01-14T17:32:14Z",
    "title_canon_sha256": "e8a007bdd02f0280026f4a2547d37ce6b15f396f8c1f92a4666f584747d2c873"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.08269",
    "kind": "arxiv",
    "version": 1
  }
}