Pith Number

pith:DBFSCYMQ

pith:2012:DBFSCYMQQX5CAZWPM2I5FLBBNI

not attested not anchored not stored refs pending

Stability of tautological bundles on the Hilbert scheme of two points on a surface

Malte Wandel

arxiv:1202.6528 v3 · 2012-02-29 · 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{DBFSCYMQQX5CAZWPM2I5FLBBNI}

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	2026-05-18T02:29:25.473977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

184b21619085fa2066cf6691d2ac216a3400abd22a6b130e9dcfc053cff8b49b

Aliases

arxiv: 1202.6528 · arxiv_version: 1202.6528v3 · doi: 10.48550/arxiv.1202.6528 · pith_short_12: DBFSCYMQQX5C · pith_short_16: DBFSCYMQQX5CAZWP · pith_short_8: DBFSCYMQ

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/DBFSCYMQQX5CAZWPM2I5FLBBNI \
  | 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: 184b21619085fa2066cf6691d2ac216a3400abd22a6b130e9dcfc053cff8b49b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fec1c585ee9e821119cd740a752b7652ada06e3f2dfcfba4c47d5072bbf2690",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-02-29T12:27:26Z",
    "title_canon_sha256": "7cbdbefb800784146c25576da2ffa2666f4e857fd19e7dfbb851a26f18057a74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.6528",
    "kind": "arxiv",
    "version": 3
  }
}