Pith Number

pith:RBIEQSTC

pith:2008:RBIEQSTCSUUJOW4WEO6NBJIW2O

not attested not anchored not stored refs pending

Threefolds of order one in the six-quadric

Jeff Viaclovsky, Lev Borisov

arxiv:0808.0343 v2 · 2008-08-03 · math.AG · 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{RBIEQSTCSUUJOW4WEO6NBJIW2O}

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	2026-07-04T15:13:32.005069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8850484a629528975b9623bcd0a516d3a8d9de81efa34ac5a9058dbfce64a9f1

Aliases

arxiv: 0808.0343 · arxiv_version: 0808.0343v2 · doi: 10.48550/arxiv.0808.0343 · pith_short_12: RBIEQSTCSUUJ · pith_short_16: RBIEQSTCSUUJOW4W · pith_short_8: RBIEQSTC

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/RBIEQSTCSUUJOW4WEO6NBJIW2O \
  | 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: 8850484a629528975b9623bcd0a516d3a8d9de81efa34ac5a9058dbfce64a9f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ba4680c9f315f4d5721fc21e71e74fe21131d84f511fbf8ed92edda3e2e70ef",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-08-03T19:32:26Z",
    "title_canon_sha256": "25da5fc3c49030f7e48a7485fe2a8106d36001d6dc3941005bfa1a7b736320eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.0343",
    "kind": "arxiv",
    "version": 2
  }
}