Pith Number

pith:MDUBHYDP

pith:2013:MDUBHYDP3LIHCGCENQKMUMS7JG

not attested not anchored not stored refs pending

Generalized Donaldson-Thomas Invariants of 2-Dimensional sheaves on local P^2

Amin Gholampour, Artan Sheshmani

arxiv:1309.0056 v4 · 2013-08-31 · math.AG · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MDUBHYDP3LIHCGCENQKMUMS7JG}

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	2026-05-18T01:20:56.273438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60e813e06fdad07118446c14ca325f4992f0cbd5af665e078a49c25a844db835

Aliases

arxiv: 1309.0056 · arxiv_version: 1309.0056v4 · doi: 10.48550/arxiv.1309.0056 · pith_short_12: MDUBHYDP3LIH · pith_short_16: MDUBHYDP3LIHCGCE · pith_short_8: MDUBHYDP

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/MDUBHYDP3LIHCGCENQKMUMS7JG \
  | 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: 60e813e06fdad07118446c14ca325f4992f0cbd5af665e078a49c25a844db835

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5246761c8dbad1f22aed52a05f13549d58ff0547c9318a723affef307b19d6ee",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-08-31T02:49:30Z",
    "title_canon_sha256": "f1ce2a205be29cb1d50646d7d3136aa6a8a3a6b607aa7c4ec979b0f1900789be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0056",
    "kind": "arxiv",
    "version": 4
  }
}