Pith Number

pith:WWEH3P2M

pith:2017:WWEH3P2MCRO45NG2PTMFW2BZAL

not attested not anchored not stored refs pending

The generalized Kummer construction and the cohomology rings of $G_2$-manifolds

Iskander A. Taimanov

arxiv:1709.05803 v2 · 2017-09-18 · math.AT · math.DG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWEH3P2MCRO45NG2PTMFW2BZAL}

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	2026-05-17T23:49:06.188302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5887dbf4c145dceb4da7cd85b683902de368969d36cb8eec2bfa657672cb424

Aliases

arxiv: 1709.05803 · arxiv_version: 1709.05803v2 · doi: 10.48550/arxiv.1709.05803 · pith_short_12: WWEH3P2MCRO4 · pith_short_16: WWEH3P2MCRO45NG2 · pith_short_8: WWEH3P2M

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/WWEH3P2MCRO45NG2PTMFW2BZAL \
  | 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: b5887dbf4c145dceb4da7cd85b683902de368969d36cb8eec2bfa657672cb424

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5dca9abc1cd61b21ee0dc43567ffae29c42194fc33443a86699b99bcfce7b49",
    "cross_cats_sorted": [
      "math.DG",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-09-18T08:05:41Z",
    "title_canon_sha256": "084ac8eb714c8567a66c58e64de1adba4e650f8218e59c26dc14acff04c5789c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.05803",
    "kind": "arxiv",
    "version": 2
  }
}