Pith Number

pith:N6KSM5IH

pith:2013:N6KSM5IHM7XD3ATOMZBZUH5WIK

not attested not anchored not stored refs pending

Homological Projective Duality via Variation of Geometric Invariant Theory Quotients

David Favero, Dragos Deliu, Ludmil Katzarkov, Matthew Ballard, M. Umut Isik

arxiv:1306.3957 v3 · 2013-06-17 · 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{N6KSM5IHM7XD3ATOMZBZUH5WIK}

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	2026-05-18T02:42:28.897691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f9526750767ee3d826e66439a1fb642a61a350ec2f7f5f8bc6c5fad2926a227

Aliases

arxiv: 1306.3957 · arxiv_version: 1306.3957v3 · doi: 10.48550/arxiv.1306.3957 · pith_short_12: N6KSM5IHM7XD · pith_short_16: N6KSM5IHM7XD3ATO · pith_short_8: N6KSM5IH

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/N6KSM5IHM7XD3ATOMZBZUH5WIK \
  | 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: 6f9526750767ee3d826e66439a1fb642a61a350ec2f7f5f8bc6c5fad2926a227

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bae966a26e6ab202006076fa8a8af7dbb9ca3c39a5fc96f24f5687ced0e6610a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-06-17T19:17:26Z",
    "title_canon_sha256": "6b5cace590bcd91c5a85e671d6eca923a304d72680452476a927f15696784b47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.3957",
    "kind": "arxiv",
    "version": 3
  }
}