Pith Number

pith:PIUSK24W

pith:2018:PIUSK24WQK5A2V4G5VT2UMIDFN

not attested not anchored not stored refs pending

On the frequency of algebraic Brauer classes on certain log K3 surfaces

Damaris Schindler, J\"org Jahnel

arxiv:1801.09976 v2 · 2018-01-30 · math.NT · 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{PIUSK24WQK5A2V4G5VT2UMIDFN}

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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	2026-05-18T00:03:32.219011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a29256b9682ba0d5786ed67aa31032b51166f5fe022d2d9433d3d1e7ffa0557

Aliases

arxiv: 1801.09976 · arxiv_version: 1801.09976v2 · doi: 10.48550/arxiv.1801.09976 · pith_short_12: PIUSK24WQK5A · pith_short_16: PIUSK24WQK5A2V4G · pith_short_8: PIUSK24W

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/PIUSK24WQK5A2V4G5VT2UMIDFN \
  | 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: 7a29256b9682ba0d5786ed67aa31032b51166f5fe022d2d9433d3d1e7ffa0557

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4644c8a2fff48b1d422a5409ddf7948f24295a8193b0f662c15d1826f572b0d0",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2018-01-30T13:23:48Z",
    "title_canon_sha256": "aeb5992bd5b9824e7485faa56c57ab624fb04deb3d8177bf4eb7efd44e48c0d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09976",
    "kind": "arxiv",
    "version": 2
  }
}