Pith Number

pith:IC7YA62J

pith:2016:IC7YA62JSHKUV5PLGEOMEPM7YM

not attested not anchored not stored refs pending

A simple proof of the non-rationality of a general quartic double solid

Yuri Prokhorov

arxiv:1605.02017 v2 · 2016-05-06 · 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{IC7YA62JSHKUV5PLGEOMEPM7YM}

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	2026-05-18T00:29:33.660189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40bf807b4991d54af5eb311cc23d9fc31a86772758eb648980d994e67ea4c0fe

Aliases

arxiv: 1605.02017 · arxiv_version: 1605.02017v2 · doi: 10.48550/arxiv.1605.02017 · pith_short_12: IC7YA62JSHKU · pith_short_16: IC7YA62JSHKUV5PL · pith_short_8: IC7YA62J

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/IC7YA62JSHKUV5PLGEOMEPM7YM \
  | 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: 40bf807b4991d54af5eb311cc23d9fc31a86772758eb648980d994e67ea4c0fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eef10a12f1bd90b4feaa3c85e84a52c17608d8842c53d77790f4747f6e7aef8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-05-06T18:02:13Z",
    "title_canon_sha256": "7e194af93f08e9b73eabd02251030857b4a008b9f984b6552d570ee9e4a66ceb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02017",
    "kind": "arxiv",
    "version": 2
  }
}