Pith Number

pith:ZSKPGURP

pith:2008:ZSKPGURPECRHAU2EYZH6UHVJRP

not attested not anchored not stored refs pending

Projective embeddings of homogeneous spaces with small boundary

Ivan V. Arzhantsev

arxiv:0801.1967 v1 · 2008-01-13 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZSKPGURPECRHAU2EYZH6UHVJRP}

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	2026-05-18T02:16:01.935073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc94f3522f20a2705344c64fea1ea98bee6beaddb14621602426f6a904b586cb

Aliases

arxiv: 0801.1967 · arxiv_version: 0801.1967v1 · doi: 10.48550/arxiv.0801.1967 · pith_short_12: ZSKPGURPECRH · pith_short_16: ZSKPGURPECRHAU2E · pith_short_8: ZSKPGURP

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/ZSKPGURPECRHAU2EYZH6UHVJRP \
  | 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: cc94f3522f20a2705344c64fea1ea98bee6beaddb14621602426f6a904b586cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5342b8d4c1265bc3d74456ed303c95e83816bc72d0058b44b1ba26c13aaa0257",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2008-01-13T16:23:07Z",
    "title_canon_sha256": "e5ccf24e6780be67b2b8506854680c1279478f2f14204653aa7792a07ca17228"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1967",
    "kind": "arxiv",
    "version": 1
  }
}