Pith Number

pith:XGWHIZFH

pith:2013:XGWHIZFH7TQYSXDSUDYSZCGYGQ

not attested not anchored not stored refs pending

Invariants of pure 2-dimensional sheaves inside threefolds and modular forms

Amin Gholampour, Artan Sheshmani

arxiv:1305.1334 v3 · 2013-05-06 · 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{XGWHIZFH7TQYSXDSUDYSZCGYGQ}

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	2026-05-18T03:14:19.513425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9ac7464a7fce1895c72a0f12c88d83436558fb8ac091b75500d7a1c7994a123

Aliases

arxiv: 1305.1334 · arxiv_version: 1305.1334v3 · doi: 10.48550/arxiv.1305.1334 · pith_short_12: XGWHIZFH7TQY · pith_short_16: XGWHIZFH7TQYSXDS · pith_short_8: XGWHIZFH

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/XGWHIZFH7TQYSXDSUDYSZCGYGQ \
  | 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: b9ac7464a7fce1895c72a0f12c88d83436558fb8ac091b75500d7a1c7994a123

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c1e9dd4d7f6e70312bffc4e2549d3440b26a9762d66653aee34f1502c3882fb",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-05-06T21:22:00Z",
    "title_canon_sha256": "018d45d97bcc157349fefba2bd9cc953bb7ed03493460a91f171988c829bd227"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1334",
    "kind": "arxiv",
    "version": 3
  }
}