Pith Number

pith:EJLY6CSP

pith:2009:EJLY6CSPVL6HEI42NVELA3E7GB

not attested not anchored not stored refs pending

Forgetful linear systems on the projective space and rational normal curves over $\cM_{0,2n}^{GIT}$

Michele Bolognesi

arxiv:0909.0151 v2 · 2009-09-01 · 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{EJLY6CSPVL6HEI42NVELA3E7GB}

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	2026-05-18T02:58:02.836859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22578f0a4faafc72239a6d48b06c9f307534b3638912339a3ad727f02d28e2ab

Aliases

arxiv: 0909.0151 · arxiv_version: 0909.0151v2 · doi: 10.48550/arxiv.0909.0151 · pith_short_12: EJLY6CSPVL6H · pith_short_16: EJLY6CSPVL6HEI42 · pith_short_8: EJLY6CSP

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/EJLY6CSPVL6HEI42NVELA3E7GB \
  | 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: 22578f0a4faafc72239a6d48b06c9f307534b3638912339a3ad727f02d28e2ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7592d6f4e3cc694fd4194a884208b2c78aa37bcd2de8b4cf5250f49b3c3ddac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-09-01T11:31:43Z",
    "title_canon_sha256": "678ad3fd15ec33e8ca7e55f6e6ccd8558b63fe9acc83dfd64c72bd9744cc1f9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0151",
    "kind": "arxiv",
    "version": 2
  }
}