Pith Number

pith:MGLSY5FJ

pith:2018:MGLSY5FJ7M66KUM36OFCAJGL3Y

not attested not anchored not stored refs pending

The Gerstenhaber product $\HH^2(A)\times \HH^2(A)\to \HH^3(A)$ of affine toric varieties

Matej Filip

arxiv:1803.07486 v2 · 2018-03-20 · 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{MGLSY5FJ7M66KUM36OFCAJGL3Y}

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	2026-05-17T23:59:22.857679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61972c74a9fb3de5519bf38a2024cbde285ae9662264e4582a33555874ee9150

Aliases

arxiv: 1803.07486 · arxiv_version: 1803.07486v2 · doi: 10.48550/arxiv.1803.07486 · pith_short_12: MGLSY5FJ7M66 · pith_short_16: MGLSY5FJ7M66KUM3 · pith_short_8: MGLSY5FJ

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/MGLSY5FJ7M66KUM36OFCAJGL3Y \
  | 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: 61972c74a9fb3de5519bf38a2024cbde285ae9662264e4582a33555874ee9150

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4afa465bb9dcf55c20b09d077e7d59040bf767c622397c360dd4a869fe37d672",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-20T15:31:44Z",
    "title_canon_sha256": "162e799a82cbc0d5673b67f058a94afc453281b335ec5119bd442345f2c1d651"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07486",
    "kind": "arxiv",
    "version": 2
  }
}