Pith Number

pith:WQFO6HOT

pith:2001:WQFO6HOTIM4WWUDS7ZHU7KXUYV

not attested not anchored not stored refs pending

A geometric construction of Tango bundle on P^5

Daniele Faenzi

arxiv:math/0111207 v2 · 2001-11-19 · 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{WQFO6HOTIM4WWUDS7ZHU7KXUYV}

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	2026-05-18T01:05:37.467023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b40aef1dd343396b5072fe4f4faaf4c5791193839b6924adfb35a6dbecaa28b9

Aliases

arxiv: math/0111207 · arxiv_version: math/0111207v2 · doi: 10.48550/arxiv.math/0111207 · pith_short_12: WQFO6HOTIM4W · pith_short_16: WQFO6HOTIM4WWUDS · pith_short_8: WQFO6HOT

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/WQFO6HOTIM4WWUDS7ZHU7KXUYV \
  | 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: b40aef1dd343396b5072fe4f4faaf4c5791193839b6924adfb35a6dbecaa28b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be85aa216d2c1bc4d08e5d8cc0a9334e919fd2b3d17094ca3ab0b9e7979c8ac1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2001-11-19T17:12:54Z",
    "title_canon_sha256": "2253d552764ff950cccf34fc11e5e8c013d7b7f5c3615038259445f4f8f20774"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0111207",
    "kind": "arxiv",
    "version": 2
  }
}