Pith Number

pith:DAKOSYHT

pith:2016:DAKOSYHTFIEQ2Y5DGYGP2FSWKH

not attested not anchored not stored refs pending

Double quadrics with large automorphism groups

Constantin Shramov, Victor Przyjalkowski

arxiv:1604.00307 v2 · 2016-04-01 · 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{DAKOSYHTFIEQ2Y5DGYGP2FSWKH}

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	2026-05-18T00:08:58.031148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1814e960f32a090d63a3360cfd165651e688dc09f5f8e119308b05774090d47b

Aliases

arxiv: 1604.00307 · arxiv_version: 1604.00307v2 · doi: 10.48550/arxiv.1604.00307 · pith_short_12: DAKOSYHTFIEQ · pith_short_16: DAKOSYHTFIEQ2Y5D · pith_short_8: DAKOSYHT

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/DAKOSYHTFIEQ2Y5DGYGP2FSWKH \
  | 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: 1814e960f32a090d63a3360cfd165651e688dc09f5f8e119308b05774090d47b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06f106f30fc2e38072bf10bda83e20226a96c1325ea50faa95566d0a5f25033f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-04-01T16:03:23Z",
    "title_canon_sha256": "a029a05f3c371b5d2691bce313d1ffc120e53c50ef5998b7ef4a1b426e64a6ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.00307",
    "kind": "arxiv",
    "version": 2
  }
}