Pith Number

pith:M6XTPO3D

pith:2012:M6XTPO3DIHPULARYUI75JRPR7G

not attested not anchored not stored refs pending

Diptych varieties. II: Polar varieties

Gavin Brown, Miles Reid

arxiv:1208.5858 v3 · 2012-08-29 · 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{M6XTPO3DIHPULARYUI75JRPR7G}

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	2026-05-18T01:36:36.263965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67af37bb6341df458238a23fd4c5f1f9a4c461060239459df20dd42f7779b94d

Aliases

arxiv: 1208.5858 · arxiv_version: 1208.5858v3 · doi: 10.48550/arxiv.1208.5858 · pith_short_12: M6XTPO3DIHPU · pith_short_16: M6XTPO3DIHPULARY · pith_short_8: M6XTPO3D

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/M6XTPO3DIHPULARYUI75JRPR7G \
  | 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: 67af37bb6341df458238a23fd4c5f1f9a4c461060239459df20dd42f7779b94d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "664793549de3c6b1f47f8d7c3797e5c260899b40194ea6075612ff1c9cd08340",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-08-29T08:33:24Z",
    "title_canon_sha256": "51c0ece3ed15040d0c24c9071115000b6ee6e10848585d0a44b0aefa03d1500a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5858",
    "kind": "arxiv",
    "version": 3
  }
}