Pith Number

pith:5QQHMYQ7

pith:2011:5QQHMYQ7N5LIUWKCRWLRWVAPVP

not attested not anchored not stored refs pending

A real viewpoint on the intersection of complex quadrics and its topology

Antonio Lerario

arxiv:1106.1828 v1 · 2011-06-09 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QQHMYQ7N5LIUWKCRWLRWVAPVP}

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	2026-05-18T04:20:15.051271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec2076621f6f568a59428d971b540fabe325dcb42841b5d496380089b074b187

Aliases

arxiv: 1106.1828 · arxiv_version: 1106.1828v1 · doi: 10.48550/arxiv.1106.1828 · pith_short_12: 5QQHMYQ7N5LI · pith_short_16: 5QQHMYQ7N5LIUWKC · pith_short_8: 5QQHMYQ7

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/5QQHMYQ7N5LIUWKCRWLRWVAPVP \
  | 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: ec2076621f6f568a59428d971b540fabe325dcb42841b5d496380089b074b187

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af5e1b42d33907028db1f7f43ad6584a3b1b15f30231e66b434b6e404ba380a1",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-06-09T14:37:02Z",
    "title_canon_sha256": "51d43bec9184b3345a007e549b00a079c6f3fb1bedde8f3ce9b1d7e34ba77cef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.1828",
    "kind": "arxiv",
    "version": 1
  }
}