Pith Number

pith:QNUFG64U

pith:2019:QNUFG64UGI65UL7FLQ5L2KMFQC

not attested not anchored not stored refs pending

Finiteness and infiniteness results for Torelli groups of (hyper-)K\"ahler manifolds

Matthias Kreck, Yang Su

arxiv:1907.05693 v1 · 2019-07-12 · math.GT · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QNUFG64UGI65UL7FLQ5L2KMFQC}

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	2026-05-17T23:40:47.266434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8368537b94323dda2fe55c3abd2985808e6d5535d822f47e3e7f4dbc75c96d8c

Aliases

arxiv: 1907.05693 · arxiv_version: 1907.05693v1 · doi: 10.48550/arxiv.1907.05693 · pith_short_12: QNUFG64UGI65 · pith_short_16: QNUFG64UGI65UL7F · pith_short_8: QNUFG64U

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/QNUFG64UGI65UL7FLQ5L2KMFQC \
  | 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: 8368537b94323dda2fe55c3abd2985808e6d5535d822f47e3e7f4dbc75c96d8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69472d30d0ff26cc4e062fe29e3d38bf5f85a129c0434bfd261794691d78c56a",
    "cross_cats_sorted": [
      "math.AG",
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2019-07-12T12:19:40Z",
    "title_canon_sha256": "c05eb58e92865f951a1b8e57f6521c64ded96ca5dc2a2cc292f8991c5b9c639a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05693",
    "kind": "arxiv",
    "version": 1
  }
}