Pith Number

pith:3V3W7DWF

pith:2025:3V3W7DWF6H5HCDQ4PFYS3RTAUI

not attested not anchored not stored refs pending

Nilpotent cohomological Hall algebras of surfaces

Duiliu-Emanuel Diaconescu, Eric Vasserot, Francesco Sala, Mauro Porta, Olivier Schiffmann

arxiv:2502.19445 v3 · 2025-02-25 · math.AG · hep-th · math.QA · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3V3W7DWF6H5HCDQ4PFYS3RTAUI}

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	2026-06-09T02:07:02.371362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd776f8ec5f1fa710e1c79712dc660a22e32c6d73d77490ecbe3b9d1a4f0c0a2

Aliases

arxiv: 2502.19445 · arxiv_version: 2502.19445v3 · doi: 10.48550/arxiv.2502.19445 · pith_short_12: 3V3W7DWF6H5H · pith_short_16: 3V3W7DWF6H5HCDQ4 · pith_short_8: 3V3W7DWF

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/3V3W7DWF6H5HCDQ4PFYS3RTAUI \
  | 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: dd776f8ec5f1fa710e1c79712dc660a22e32c6d73d77490ecbe3b9d1a4f0c0a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf25d00db28c13c3dde63623d4d7705d395ef5f67abe2e5c2921117c70752d48",
    "cross_cats_sorted": [
      "hep-th",
      "math.QA",
      "math.RT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-02-25T09:39:43Z",
    "title_canon_sha256": "ec935da305a120173af9b93434d5a6d07b40b4be00e215b511605c919b7d3d03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.19445",
    "kind": "arxiv",
    "version": 3
  }
}