Pith Number

pith:OG7N6HNA

pith:2010:OG7N6HNAJVPQQZH2F6ZN6CBEWW

not attested not anchored not stored refs pending

On Donaldson-Thomas invariants of threefold stacks and gerbes

Amin Gholampour, Hsian-Hua Tseng

arxiv:1001.0435 v1 · 2010-01-04 · 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{OG7N6HNAJVPQQZH2F6ZN6CBEWW}

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	2026-05-18T03:26:23.513912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71bedf1da04d5f0864fa2fb2df0824b58dba56f47544bd50c8350e7accd3e8db

Aliases

arxiv: 1001.0435 · arxiv_version: 1001.0435v1 · doi: 10.48550/arxiv.1001.0435 · pith_short_12: OG7N6HNAJVPQ · pith_short_16: OG7N6HNAJVPQQZH2 · pith_short_8: OG7N6HNA

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/OG7N6HNAJVPQQZH2F6ZN6CBEWW \
  | 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: 71bedf1da04d5f0864fa2fb2df0824b58dba56f47544bd50c8350e7accd3e8db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fbf9a0855414e3e80392967523adf13fa1779cc1b4fde1260ecfd783b845fd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-01-04T04:35:25Z",
    "title_canon_sha256": "1c0898fc5eeafaf718623f675677cf02b317911755fb1b0823348f19161a5d42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.0435",
    "kind": "arxiv",
    "version": 1
  }
}