Pith Number

pith:DBUTTM7E

pith:2018:DBUTTM7EMC2XDCYX5XJIHCOQH7

not attested not anchored not stored refs pending

On the Chow groups of some hyperkaehler fourfolds with a non-symplectic involution II

Robert Laterveer

arxiv:1802.08551 v1 · 2018-02-20 · 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{DBUTTM7EMC2XDCYX5XJIHCOQH7}

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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	2026-05-18T00:22:41.205699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

186939b3e460b5718b17edd28389d03fd6edb4d29d4a5124b378e3d2b1dad9f1

Aliases

arxiv: 1802.08551 · arxiv_version: 1802.08551v1 · doi: 10.48550/arxiv.1802.08551 · pith_short_12: DBUTTM7EMC2X · pith_short_16: DBUTTM7EMC2XDCYX · pith_short_8: DBUTTM7E

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/DBUTTM7EMC2XDCYX5XJIHCOQH7 \
  | 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: 186939b3e460b5718b17edd28389d03fd6edb4d29d4a5124b378e3d2b1dad9f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "355dc710ee990eeb246494b6e83595b89aa05ef9a015adc82ece79f201992a80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-02-20T09:51:44Z",
    "title_canon_sha256": "bb8dd303b454b758f38ea872bd9d8ba07eec7f469fd6ee9e90f5753f9af3adf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08551",
    "kind": "arxiv",
    "version": 1
  }
}