Pith Number

pith:NNJQZOCH

pith:2015:NNJQZOCHJQIITYNTZS4YPJHHVD

not attested not anchored not stored refs pending

Donaldson-Thomas invariants vs. intersection cohomology for categories of homological dimension one

Sven Meinhardt

arxiv:1512.03343 v1 · 2015-12-10 · math.AG · math.CT · 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{NNJQZOCHJQIITYNTZS4YPJHHVD}

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	2026-05-18T01:24:37.402591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b530cb8474c1089e1b3ccb987a4e7a8f6e4d5aaf2e90064c6a07358c0ac3c92

Aliases

arxiv: 1512.03343 · arxiv_version: 1512.03343v1 · doi: 10.48550/arxiv.1512.03343 · pith_short_12: NNJQZOCHJQII · pith_short_16: NNJQZOCHJQIITYNT · pith_short_8: NNJQZOCH

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/NNJQZOCHJQIITYNTZS4YPJHHVD \
  | 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: 6b530cb8474c1089e1b3ccb987a4e7a8f6e4d5aaf2e90064c6a07358c0ac3c92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87748f6964eaeded495075358a596aa38579d4a31d4f0f0793cb20e37ae5197e",
    "cross_cats_sorted": [
      "math.CT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-12-10T17:46:27Z",
    "title_canon_sha256": "0cf62fd393f3f0625874cae28e9b7be976d8a2bc0756bbc30c0fb5f35d510347"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03343",
    "kind": "arxiv",
    "version": 1
  }
}