Pith Number

pith:VJUSLR5C

pith:2019:VJUSLR5C6K6YDB7QWO5WZ5B2FX

not attested not anchored not stored refs pending

Diagram involutions and homogeneous Ricci-flat metrics

Diego Conti, Federico A. Rossi, Viviana del Barco

arxiv:1908.05975 v2 · 2019-08-16 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VJUSLR5C6K6YDB7QWO5WZ5B2FX}

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	2026-07-05T01:17:24.693829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa6925c7a2f2bd8187f0b3bb6cf43a2dc007a79a04f861aed09190ca6a3486d5

Aliases

arxiv: 1908.05975 · arxiv_version: 1908.05975v2 · doi: 10.48550/arxiv.1908.05975 · pith_short_12: VJUSLR5C6K6Y · pith_short_16: VJUSLR5C6K6YDB7Q · pith_short_8: VJUSLR5C

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/VJUSLR5C6K6YDB7QWO5WZ5B2FX \
  | 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: aa6925c7a2f2bd8187f0b3bb6cf43a2dc007a79a04f861aed09190ca6a3486d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8637b8cfc865050bbaae9f504ffe6ed1fe7ee09469d1622c97c7537a238be5bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-08-16T13:53:55Z",
    "title_canon_sha256": "4b7f17cbd9c87726c7b857e09f4734393691f066d0b66a4aba67c1eabb90dc3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05975",
    "kind": "arxiv",
    "version": 2
  }
}